Mercurial > hg > nginx
annotate src/http/modules/ngx_http_mp4_module.c @ 4688:5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Mon, 18 Jun 2012 14:02:20 +0000 |
| parents | 7f50a4063100 |
| children | 9a43b145a8ba |
| rev | line source |
|---|---|
| 4085 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4412 | 4 * Copyright (C) Nginx, Inc. |
| 4085 | 5 */ |
| 6 | |
| 7 #include <ngx_config.h> | |
| 8 #include <ngx_core.h> | |
| 9 #include <ngx_http.h> | |
| 10 | |
| 11 | |
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12 #define NGX_HTTP_MP4_TRAK_ATOM 0 |
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13 #define NGX_HTTP_MP4_TKHD_ATOM 1 |
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14 #define NGX_HTTP_MP4_MDIA_ATOM 2 |
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15 #define NGX_HTTP_MP4_MDHD_ATOM 3 |
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16 #define NGX_HTTP_MP4_HDLR_ATOM 4 |
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17 #define NGX_HTTP_MP4_MINF_ATOM 5 |
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18 #define NGX_HTTP_MP4_VMHD_ATOM 6 |
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19 #define NGX_HTTP_MP4_SMHD_ATOM 7 |
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20 #define NGX_HTTP_MP4_DINF_ATOM 8 |
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21 #define NGX_HTTP_MP4_STBL_ATOM 9 |
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22 #define NGX_HTTP_MP4_STSD_ATOM 10 |
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23 #define NGX_HTTP_MP4_STTS_ATOM 11 |
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24 #define NGX_HTTP_MP4_STTS_DATA 12 |
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25 #define NGX_HTTP_MP4_STSS_ATOM 13 |
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26 #define NGX_HTTP_MP4_STSS_DATA 14 |
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27 #define NGX_HTTP_MP4_CTTS_ATOM 15 |
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28 #define NGX_HTTP_MP4_CTTS_DATA 16 |
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29 #define NGX_HTTP_MP4_STSC_ATOM 17 |
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30 #define NGX_HTTP_MP4_STSC_CHUNK 18 |
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31 #define NGX_HTTP_MP4_STSC_DATA 19 |
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32 #define NGX_HTTP_MP4_STSZ_ATOM 20 |
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33 #define NGX_HTTP_MP4_STSZ_DATA 21 |
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34 #define NGX_HTTP_MP4_STCO_ATOM 22 |
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35 #define NGX_HTTP_MP4_STCO_DATA 23 |
| 4112 | 36 #define NGX_HTTP_MP4_CO64_ATOM 24 |
| 37 #define NGX_HTTP_MP4_CO64_DATA 25 | |
| 38 | |
| 39 #define NGX_HTTP_MP4_LAST_ATOM NGX_HTTP_MP4_CO64_DATA | |
| 4085 | 40 |
| 41 | |
| 42 typedef struct { | |
| 43 size_t buffer_size; | |
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44 size_t max_buffer_size; |
| 4085 | 45 } ngx_http_mp4_conf_t; |
| 46 | |
| 47 | |
| 48 typedef struct { | |
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49 u_char chunk[4]; |
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50 u_char samples[4]; |
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51 u_char id[4]; |
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52 } ngx_mp4_stsc_entry_t; |
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53 |
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54 |
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55 typedef struct { |
| 4085 | 56 uint32_t timescale; |
| 57 uint32_t time_to_sample_entries; | |
| 58 uint32_t sample_to_chunk_entries; | |
| 59 uint32_t sync_samples_entries; | |
| 60 uint32_t composition_offset_entries; | |
| 61 uint32_t sample_sizes_entries; | |
| 62 uint32_t chunks; | |
| 63 | |
| 64 ngx_uint_t start_sample; | |
| 65 ngx_uint_t start_chunk; | |
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66 ngx_uint_t chunk_samples; |
| 4112 | 67 uint64_t chunk_samples_size; |
| 4085 | 68 off_t start_offset; |
| 69 | |
| 70 size_t tkhd_size; | |
| 71 size_t mdhd_size; | |
| 72 size_t hdlr_size; | |
| 73 size_t vmhd_size; | |
| 74 size_t smhd_size; | |
| 75 size_t dinf_size; | |
| 76 size_t size; | |
| 77 | |
| 78 ngx_chain_t out[NGX_HTTP_MP4_LAST_ATOM + 1]; | |
| 79 | |
| 80 ngx_buf_t trak_atom_buf; | |
| 81 ngx_buf_t tkhd_atom_buf; | |
| 82 ngx_buf_t mdia_atom_buf; | |
| 83 ngx_buf_t mdhd_atom_buf; | |
| 84 ngx_buf_t hdlr_atom_buf; | |
| 85 ngx_buf_t minf_atom_buf; | |
| 86 ngx_buf_t vmhd_atom_buf; | |
| 87 ngx_buf_t smhd_atom_buf; | |
| 88 ngx_buf_t dinf_atom_buf; | |
| 89 ngx_buf_t stbl_atom_buf; | |
| 90 ngx_buf_t stsd_atom_buf; | |
| 91 ngx_buf_t stts_atom_buf; | |
| 92 ngx_buf_t stts_data_buf; | |
| 93 ngx_buf_t stss_atom_buf; | |
| 94 ngx_buf_t stss_data_buf; | |
| 95 ngx_buf_t ctts_atom_buf; | |
| 96 ngx_buf_t ctts_data_buf; | |
| 97 ngx_buf_t stsc_atom_buf; | |
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98 ngx_buf_t stsc_chunk_buf; |
| 4085 | 99 ngx_buf_t stsc_data_buf; |
| 100 ngx_buf_t stsz_atom_buf; | |
| 101 ngx_buf_t stsz_data_buf; | |
| 4107 | 102 ngx_buf_t stco_atom_buf; |
| 103 ngx_buf_t stco_data_buf; | |
| 4112 | 104 ngx_buf_t co64_atom_buf; |
| 105 ngx_buf_t co64_data_buf; | |
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106 |
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107 ngx_mp4_stsc_entry_t stsc_chunk_entry; |
| 4085 | 108 } ngx_http_mp4_trak_t; |
| 109 | |
| 110 | |
| 111 typedef struct { | |
| 112 ngx_file_t file; | |
| 113 | |
| 114 u_char *buffer; | |
| 115 u_char *buffer_start; | |
| 116 u_char *buffer_pos; | |
| 117 u_char *buffer_end; | |
| 118 size_t buffer_size; | |
| 119 | |
| 120 off_t offset; | |
| 121 off_t end; | |
| 122 off_t content_length; | |
| 123 ngx_uint_t start; | |
| 124 uint32_t timescale; | |
| 125 ngx_http_request_t *request; | |
| 126 ngx_array_t trak; | |
| 127 ngx_http_mp4_trak_t traks[2]; | |
| 128 | |
| 129 size_t ftyp_size; | |
| 130 size_t moov_size; | |
| 131 | |
| 132 ngx_chain_t *out; | |
| 133 ngx_chain_t ftyp_atom; | |
| 134 ngx_chain_t moov_atom; | |
| 135 ngx_chain_t mvhd_atom; | |
| 136 ngx_chain_t mdat_atom; | |
| 137 ngx_chain_t mdat_data; | |
| 138 | |
| 139 ngx_buf_t ftyp_atom_buf; | |
| 140 ngx_buf_t moov_atom_buf; | |
| 141 ngx_buf_t mvhd_atom_buf; | |
| 142 ngx_buf_t mdat_atom_buf; | |
| 143 ngx_buf_t mdat_data_buf; | |
| 144 | |
| 145 u_char moov_atom_header[8]; | |
| 146 u_char mdat_atom_header[16]; | |
| 147 } ngx_http_mp4_file_t; | |
| 148 | |
| 149 | |
| 150 typedef struct { | |
| 151 char *name; | |
| 152 ngx_int_t (*handler)(ngx_http_mp4_file_t *mp4, | |
| 153 uint64_t atom_data_size); | |
| 154 } ngx_http_mp4_atom_handler_t; | |
| 155 | |
| 156 | |
| 157 #define ngx_mp4_atom_header(mp4) (mp4->buffer_pos - 8) | |
| 158 #define ngx_mp4_atom_data(mp4) mp4->buffer_pos | |
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159 #define ngx_mp4_atom_data_size(t) (uint64_t) (sizeof(t) - 8) |
| 4085 | 160 #define ngx_mp4_atom_next(mp4, n) mp4->buffer_pos += n; mp4->offset += n |
| 161 | |
| 162 | |
| 163 #define ngx_mp4_set_atom_name(p, n1, n2, n3, n4) \ | |
| 164 ((u_char *) (p))[4] = n1; \ | |
| 165 ((u_char *) (p))[5] = n2; \ | |
| 166 ((u_char *) (p))[6] = n3; \ | |
| 167 ((u_char *) (p))[7] = n4 | |
| 168 | |
| 169 #define ngx_mp4_get_32value(p) \ | |
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170 ( ((uint32_t) ((u_char *) (p))[0] << 24) \ |
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171 + ( ((u_char *) (p))[1] << 16) \ |
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172 + ( ((u_char *) (p))[2] << 8) \ |
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173 + ( ((u_char *) (p))[3]) ) |
| 4085 | 174 |
| 175 #define ngx_mp4_set_32value(p, n) \ | |
| 176 ((u_char *) (p))[0] = (u_char) ((n) >> 24); \ | |
| 177 ((u_char *) (p))[1] = (u_char) ((n) >> 16); \ | |
| 178 ((u_char *) (p))[2] = (u_char) ((n) >> 8); \ | |
| 179 ((u_char *) (p))[3] = (u_char) (n) | |
| 180 | |
| 181 #define ngx_mp4_get_64value(p) \ | |
| 182 ( ((uint64_t) ((u_char *) (p))[0] << 56) \ | |
| 183 + ((uint64_t) ((u_char *) (p))[1] << 48) \ | |
| 184 + ((uint64_t) ((u_char *) (p))[2] << 40) \ | |
| 185 + ((uint64_t) ((u_char *) (p))[3] << 32) \ | |
| 186 + ((uint64_t) ((u_char *) (p))[4] << 24) \ | |
| 187 + ( ((u_char *) (p))[5] << 16) \ | |
| 188 + ( ((u_char *) (p))[6] << 8) \ | |
| 189 + ( ((u_char *) (p))[7]) ) | |
| 190 | |
| 191 #define ngx_mp4_set_64value(p, n) \ | |
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192 ((u_char *) (p))[0] = (u_char) ((uint64_t) (n) >> 56); \ |
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193 ((u_char *) (p))[1] = (u_char) ((uint64_t) (n) >> 48); \ |
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194 ((u_char *) (p))[2] = (u_char) ((uint64_t) (n) >> 40); \ |
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195 ((u_char *) (p))[3] = (u_char) ((uint64_t) (n) >> 32); \ |
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196 ((u_char *) (p))[4] = (u_char) ( (n) >> 24); \ |
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197 ((u_char *) (p))[5] = (u_char) ( (n) >> 16); \ |
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198 ((u_char *) (p))[6] = (u_char) ( (n) >> 8); \ |
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199 ((u_char *) (p))[7] = (u_char) (n) |
| 4085 | 200 |
| 201 #define ngx_mp4_last_trak(mp4) \ | |
| 202 &((ngx_http_mp4_trak_t *) mp4->trak.elts)[mp4->trak.nelts - 1] | |
| 203 | |
| 204 | |
| 205 static ngx_int_t ngx_http_mp4_process(ngx_http_mp4_file_t *mp4); | |
| 206 static ngx_int_t ngx_http_mp4_read_atom(ngx_http_mp4_file_t *mp4, | |
| 207 ngx_http_mp4_atom_handler_t *atom, uint64_t atom_data_size); | |
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208 static ngx_int_t ngx_http_mp4_read(ngx_http_mp4_file_t *mp4, size_t size); |
| 4085 | 209 static ngx_int_t ngx_http_mp4_read_ftyp_atom(ngx_http_mp4_file_t *mp4, |
| 210 uint64_t atom_data_size); | |
| 211 static ngx_int_t ngx_http_mp4_read_moov_atom(ngx_http_mp4_file_t *mp4, | |
| 212 uint64_t atom_data_size); | |
| 213 static ngx_int_t ngx_http_mp4_read_mdat_atom(ngx_http_mp4_file_t *mp4, | |
| 214 uint64_t atom_data_size); | |
| 215 static size_t ngx_http_mp4_update_mdat_atom(ngx_http_mp4_file_t *mp4, | |
| 216 off_t start_offset); | |
| 217 static ngx_int_t ngx_http_mp4_read_mvhd_atom(ngx_http_mp4_file_t *mp4, | |
| 218 uint64_t atom_data_size); | |
| 219 static ngx_int_t ngx_http_mp4_read_trak_atom(ngx_http_mp4_file_t *mp4, | |
| 220 uint64_t atom_data_size); | |
| 221 static void ngx_http_mp4_update_trak_atom(ngx_http_mp4_file_t *mp4, | |
| 222 ngx_http_mp4_trak_t *trak); | |
| 223 static ngx_int_t ngx_http_mp4_read_cmov_atom(ngx_http_mp4_file_t *mp4, | |
| 224 uint64_t atom_data_size); | |
| 225 static ngx_int_t ngx_http_mp4_read_tkhd_atom(ngx_http_mp4_file_t *mp4, | |
| 226 uint64_t atom_data_size); | |
| 227 static ngx_int_t ngx_http_mp4_read_mdia_atom(ngx_http_mp4_file_t *mp4, | |
| 228 uint64_t atom_data_size); | |
| 229 static void ngx_http_mp4_update_mdia_atom(ngx_http_mp4_file_t *mp4, | |
| 230 ngx_http_mp4_trak_t *trak); | |
| 231 static ngx_int_t ngx_http_mp4_read_mdhd_atom(ngx_http_mp4_file_t *mp4, | |
| 232 uint64_t atom_data_size); | |
| 233 static ngx_int_t ngx_http_mp4_read_hdlr_atom(ngx_http_mp4_file_t *mp4, | |
| 234 uint64_t atom_data_size); | |
| 235 static ngx_int_t ngx_http_mp4_read_minf_atom(ngx_http_mp4_file_t *mp4, | |
| 236 uint64_t atom_data_size); | |
| 237 static void ngx_http_mp4_update_minf_atom(ngx_http_mp4_file_t *mp4, | |
| 238 ngx_http_mp4_trak_t *trak); | |
| 239 static ngx_int_t ngx_http_mp4_read_dinf_atom(ngx_http_mp4_file_t *mp4, | |
| 240 uint64_t atom_data_size); | |
| 241 static ngx_int_t ngx_http_mp4_read_vmhd_atom(ngx_http_mp4_file_t *mp4, | |
| 242 uint64_t atom_data_size); | |
| 243 static ngx_int_t ngx_http_mp4_read_smhd_atom(ngx_http_mp4_file_t *mp4, | |
| 244 uint64_t atom_data_size); | |
| 245 static ngx_int_t ngx_http_mp4_read_stbl_atom(ngx_http_mp4_file_t *mp4, | |
| 246 uint64_t atom_data_size); | |
| 247 static void ngx_http_mp4_update_stbl_atom(ngx_http_mp4_file_t *mp4, | |
| 248 ngx_http_mp4_trak_t *trak); | |
| 249 static ngx_int_t ngx_http_mp4_read_stsd_atom(ngx_http_mp4_file_t *mp4, | |
| 250 uint64_t atom_data_size); | |
| 251 static ngx_int_t ngx_http_mp4_read_stts_atom(ngx_http_mp4_file_t *mp4, | |
| 252 uint64_t atom_data_size); | |
| 253 static ngx_int_t ngx_http_mp4_update_stts_atom(ngx_http_mp4_file_t *mp4, | |
| 254 ngx_http_mp4_trak_t *trak); | |
| 255 static ngx_int_t ngx_http_mp4_read_stss_atom(ngx_http_mp4_file_t *mp4, | |
| 256 uint64_t atom_data_size); | |
| 257 static ngx_int_t ngx_http_mp4_update_stss_atom(ngx_http_mp4_file_t *mp4, | |
| 258 ngx_http_mp4_trak_t *trak); | |
| 259 static ngx_int_t ngx_http_mp4_read_ctts_atom(ngx_http_mp4_file_t *mp4, | |
| 260 uint64_t atom_data_size); | |
| 261 static void ngx_http_mp4_update_ctts_atom(ngx_http_mp4_file_t *mp4, | |
| 262 ngx_http_mp4_trak_t *trak); | |
| 263 static ngx_int_t ngx_http_mp4_read_stsc_atom(ngx_http_mp4_file_t *mp4, | |
| 264 uint64_t atom_data_size); | |
| 265 static ngx_int_t ngx_http_mp4_update_stsc_atom(ngx_http_mp4_file_t *mp4, | |
| 266 ngx_http_mp4_trak_t *trak); | |
| 267 static ngx_int_t ngx_http_mp4_read_stsz_atom(ngx_http_mp4_file_t *mp4, | |
| 268 uint64_t atom_data_size); | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
269 static ngx_int_t ngx_http_mp4_update_stsz_atom(ngx_http_mp4_file_t *mp4, |
| 4085 | 270 ngx_http_mp4_trak_t *trak); |
| 271 static ngx_int_t ngx_http_mp4_read_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 272 uint64_t atom_data_size); | |
| 273 static ngx_int_t ngx_http_mp4_update_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 274 ngx_http_mp4_trak_t *trak); | |
| 275 static void ngx_http_mp4_adjust_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 276 ngx_http_mp4_trak_t *trak, int32_t adjustment); | |
| 4112 | 277 static ngx_int_t ngx_http_mp4_read_co64_atom(ngx_http_mp4_file_t *mp4, |
| 278 uint64_t atom_data_size); | |
| 279 static ngx_int_t ngx_http_mp4_update_co64_atom(ngx_http_mp4_file_t *mp4, | |
| 280 ngx_http_mp4_trak_t *trak); | |
| 281 static void ngx_http_mp4_adjust_co64_atom(ngx_http_mp4_file_t *mp4, | |
| 282 ngx_http_mp4_trak_t *trak, off_t adjustment); | |
| 4085 | 283 static char *ngx_http_mp4(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
| 284 static void *ngx_http_mp4_create_conf(ngx_conf_t *cf); | |
| 285 static char *ngx_http_mp4_merge_conf(ngx_conf_t *cf, void *parent, void *child); | |
| 286 | |
| 287 static ngx_command_t ngx_http_mp4_commands[] = { | |
| 288 | |
| 289 { ngx_string("mp4"), | |
| 290 NGX_HTTP_LOC_CONF|NGX_CONF_NOARGS, | |
| 291 ngx_http_mp4, | |
| 292 0, | |
| 293 0, | |
| 294 NULL }, | |
| 295 | |
| 296 { ngx_string("mp4_buffer_size"), | |
| 297 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 298 ngx_conf_set_size_slot, | |
| 299 NGX_HTTP_LOC_CONF_OFFSET, | |
| 300 offsetof(ngx_http_mp4_conf_t, buffer_size), | |
| 301 NULL }, | |
| 302 | |
|
4089
e27670e1ab70
mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
303 { ngx_string("mp4_max_buffer_size"), |
| 4085 | 304 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| 305 ngx_conf_set_size_slot, | |
| 306 NGX_HTTP_LOC_CONF_OFFSET, | |
|
4089
e27670e1ab70
mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
307 offsetof(ngx_http_mp4_conf_t, max_buffer_size), |
| 4085 | 308 NULL }, |
| 309 | |
| 310 ngx_null_command | |
| 311 }; | |
| 312 | |
| 313 | |
| 314 static ngx_http_module_t ngx_http_mp4_module_ctx = { | |
| 315 NULL, /* preconfiguration */ | |
| 316 NULL, /* postconfiguration */ | |
| 317 | |
| 318 NULL, /* create main configuration */ | |
| 319 NULL, /* init main configuration */ | |
| 320 | |
| 321 NULL, /* create server configuration */ | |
| 322 NULL, /* merge server configuration */ | |
| 323 | |
| 324 ngx_http_mp4_create_conf, /* create location configuration */ | |
| 325 ngx_http_mp4_merge_conf /* merge location configuration */ | |
| 326 }; | |
| 327 | |
| 328 | |
| 329 ngx_module_t ngx_http_mp4_module = { | |
| 330 NGX_MODULE_V1, | |
| 331 &ngx_http_mp4_module_ctx, /* module context */ | |
| 332 ngx_http_mp4_commands, /* module directives */ | |
| 333 NGX_HTTP_MODULE, /* module type */ | |
| 334 NULL, /* init master */ | |
| 335 NULL, /* init module */ | |
| 336 NULL, /* init process */ | |
| 337 NULL, /* init thread */ | |
| 338 NULL, /* exit thread */ | |
| 339 NULL, /* exit process */ | |
| 340 NULL, /* exit master */ | |
| 341 NGX_MODULE_V1_PADDING | |
| 342 }; | |
| 343 | |
| 344 | |
| 345 static ngx_http_mp4_atom_handler_t ngx_http_mp4_atoms[] = { | |
| 346 { "ftyp", ngx_http_mp4_read_ftyp_atom }, | |
| 347 { "moov", ngx_http_mp4_read_moov_atom }, | |
| 348 { "mdat", ngx_http_mp4_read_mdat_atom }, | |
| 349 { NULL, NULL } | |
| 350 }; | |
| 351 | |
| 352 static ngx_http_mp4_atom_handler_t ngx_http_mp4_moov_atoms[] = { | |
| 353 { "mvhd", ngx_http_mp4_read_mvhd_atom }, | |
| 354 { "trak", ngx_http_mp4_read_trak_atom }, | |
| 355 { "cmov", ngx_http_mp4_read_cmov_atom }, | |
| 356 { NULL, NULL } | |
| 357 }; | |
| 358 | |
| 359 static ngx_http_mp4_atom_handler_t ngx_http_mp4_trak_atoms[] = { | |
| 360 { "tkhd", ngx_http_mp4_read_tkhd_atom }, | |
| 361 { "mdia", ngx_http_mp4_read_mdia_atom }, | |
| 362 { NULL, NULL } | |
| 363 }; | |
| 364 | |
| 365 static ngx_http_mp4_atom_handler_t ngx_http_mp4_mdia_atoms[] = { | |
| 366 { "mdhd", ngx_http_mp4_read_mdhd_atom }, | |
| 367 { "hdlr", ngx_http_mp4_read_hdlr_atom }, | |
| 368 { "minf", ngx_http_mp4_read_minf_atom }, | |
| 369 { NULL, NULL } | |
| 370 }; | |
| 371 | |
| 372 static ngx_http_mp4_atom_handler_t ngx_http_mp4_minf_atoms[] = { | |
| 373 { "vmhd", ngx_http_mp4_read_vmhd_atom }, | |
| 374 { "smhd", ngx_http_mp4_read_smhd_atom }, | |
| 375 { "dinf", ngx_http_mp4_read_dinf_atom }, | |
| 376 { "stbl", ngx_http_mp4_read_stbl_atom }, | |
| 377 { NULL, NULL } | |
| 378 }; | |
| 379 | |
| 380 static ngx_http_mp4_atom_handler_t ngx_http_mp4_stbl_atoms[] = { | |
| 381 { "stsd", ngx_http_mp4_read_stsd_atom }, | |
| 382 { "stts", ngx_http_mp4_read_stts_atom }, | |
| 383 { "stss", ngx_http_mp4_read_stss_atom }, | |
| 384 { "ctts", ngx_http_mp4_read_ctts_atom }, | |
| 385 { "stsc", ngx_http_mp4_read_stsc_atom }, | |
| 386 { "stsz", ngx_http_mp4_read_stsz_atom }, | |
| 387 { "stco", ngx_http_mp4_read_stco_atom }, | |
| 4112 | 388 { "co64", ngx_http_mp4_read_co64_atom }, |
| 4085 | 389 { NULL, NULL } |
| 390 }; | |
| 391 | |
| 392 | |
| 393 static ngx_int_t | |
| 394 ngx_http_mp4_handler(ngx_http_request_t *r) | |
| 395 { | |
| 396 u_char *last; | |
| 397 size_t root; | |
| 398 ngx_int_t rc, start; | |
| 399 ngx_uint_t level; | |
| 400 ngx_str_t path, value; | |
| 401 ngx_log_t *log; | |
| 402 ngx_buf_t *b; | |
| 403 ngx_chain_t out; | |
| 404 ngx_http_mp4_file_t *mp4; | |
| 405 ngx_open_file_info_t of; | |
| 406 ngx_http_core_loc_conf_t *clcf; | |
| 407 | |
| 408 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { | |
| 409 return NGX_HTTP_NOT_ALLOWED; | |
| 410 } | |
| 411 | |
| 412 if (r->uri.data[r->uri.len - 1] == '/') { | |
| 413 return NGX_DECLINED; | |
| 414 } | |
| 415 | |
| 416 rc = ngx_http_discard_request_body(r); | |
| 417 | |
| 418 if (rc != NGX_OK) { | |
| 419 return rc; | |
| 420 } | |
| 421 | |
| 422 last = ngx_http_map_uri_to_path(r, &path, &root, 0); | |
| 423 if (last == NULL) { | |
| 424 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 425 } | |
| 426 | |
| 427 log = r->connection->log; | |
| 428 | |
| 429 path.len = last - path.data; | |
| 430 | |
| 431 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, | |
| 432 "http mp4 filename: \"%V\"", &path); | |
| 433 | |
| 434 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 435 | |
| 436 ngx_memzero(&of, sizeof(ngx_open_file_info_t)); | |
| 437 | |
| 438 of.read_ahead = clcf->read_ahead; | |
|
4087
3aa3b7bb9f0d
Bugfix of r4086: directio was always enabled if mp4 file was sent as is.
Igor Sysoev <igor@sysoev.ru>
parents:
4085
diff
changeset
|
439 of.directio = NGX_MAX_OFF_T_VALUE; |
| 4085 | 440 of.valid = clcf->open_file_cache_valid; |
| 441 of.min_uses = clcf->open_file_cache_min_uses; | |
| 442 of.errors = clcf->open_file_cache_errors; | |
| 443 of.events = clcf->open_file_cache_events; | |
|
4494
13e09cf11d4e
Disable symlinks: initialization of the "disable_symlinks" field in
Valentin Bartenev <vbart@nginx.com>
parents:
4478
diff
changeset
|
444 |
|
13e09cf11d4e
Disable symlinks: initialization of the "disable_symlinks" field in
Valentin Bartenev <vbart@nginx.com>
parents:
4478
diff
changeset
|
445 if (ngx_http_set_disable_symlinks(r, clcf, &path, &of) != NGX_OK) { |
|
13e09cf11d4e
Disable symlinks: initialization of the "disable_symlinks" field in
Valentin Bartenev <vbart@nginx.com>
parents:
4478
diff
changeset
|
446 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
|
13e09cf11d4e
Disable symlinks: initialization of the "disable_symlinks" field in
Valentin Bartenev <vbart@nginx.com>
parents:
4478
diff
changeset
|
447 } |
| 4085 | 448 |
| 449 if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool) | |
| 450 != NGX_OK) | |
| 451 { | |
| 452 switch (of.err) { | |
| 453 | |
| 454 case 0: | |
| 455 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 456 | |
| 457 case NGX_ENOENT: | |
| 458 case NGX_ENOTDIR: | |
| 459 case NGX_ENAMETOOLONG: | |
| 460 | |
| 461 level = NGX_LOG_ERR; | |
| 462 rc = NGX_HTTP_NOT_FOUND; | |
| 463 break; | |
| 464 | |
| 465 case NGX_EACCES: | |
|
4478
08713bac87fc
Support for disable_symlinks in various modules.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
466 #if (NGX_HAVE_OPENAT) |
|
08713bac87fc
Support for disable_symlinks in various modules.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
467 case NGX_EMLINK: |
|
08713bac87fc
Support for disable_symlinks in various modules.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
468 case NGX_ELOOP: |
|
08713bac87fc
Support for disable_symlinks in various modules.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
469 #endif |
| 4085 | 470 |
| 471 level = NGX_LOG_ERR; | |
| 472 rc = NGX_HTTP_FORBIDDEN; | |
| 473 break; | |
| 474 | |
| 475 default: | |
| 476 | |
| 477 level = NGX_LOG_CRIT; | |
| 478 rc = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 479 break; | |
| 480 } | |
| 481 | |
| 482 if (rc != NGX_HTTP_NOT_FOUND || clcf->log_not_found) { | |
| 483 ngx_log_error(level, log, of.err, | |
| 484 "%s \"%s\" failed", of.failed, path.data); | |
| 485 } | |
| 486 | |
| 487 return rc; | |
| 488 } | |
| 489 | |
| 490 if (!of.is_file) { | |
| 491 | |
| 492 if (ngx_close_file(of.fd) == NGX_FILE_ERROR) { | |
| 493 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 494 ngx_close_file_n " \"%s\" failed", path.data); | |
| 495 } | |
| 496 | |
| 497 return NGX_DECLINED; | |
| 498 } | |
| 499 | |
| 500 r->root_tested = !r->error_page; | |
| 501 r->allow_ranges = 1; | |
| 502 | |
| 503 start = -1; | |
| 504 r->headers_out.content_length_n = of.size; | |
| 505 mp4 = NULL; | |
| 506 b = NULL; | |
| 507 | |
| 508 if (r->args.len) { | |
| 509 | |
| 510 if (ngx_http_arg(r, (u_char *) "start", 5, &value) == NGX_OK) { | |
| 511 | |
|
4156
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
512 /* |
|
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
513 * A Flash player may send start value with a lot of digits |
|
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
514 * after dot so strtod() is used instead of atofp(). NaNs and |
|
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
515 * infinities become negative numbers after (int) conversion. |
|
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
516 */ |
|
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
517 |
|
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
518 ngx_set_errno(0); |
|
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
519 start = (int) (strtod((char *) value.data, NULL) * 1000); |
|
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
520 |
|
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
521 if (ngx_errno == 0 && start >= 0) { |
| 4085 | 522 r->allow_ranges = 0; |
| 523 | |
| 524 mp4 = ngx_pcalloc(r->pool, sizeof(ngx_http_mp4_file_t)); | |
| 525 if (mp4 == NULL) { | |
| 526 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 527 } | |
| 528 | |
| 529 mp4->file.fd = of.fd; | |
| 530 mp4->file.name = path; | |
| 531 mp4->file.log = r->connection->log;; | |
| 532 mp4->end = of.size; | |
| 533 mp4->start = (ngx_uint_t) start; | |
| 534 mp4->request = r; | |
| 535 | |
| 536 switch (ngx_http_mp4_process(mp4)) { | |
| 537 | |
| 538 case NGX_DECLINED: | |
| 539 if (mp4->buffer) { | |
| 540 ngx_pfree(r->pool, mp4->buffer); | |
| 541 } | |
| 542 | |
| 543 ngx_pfree(r->pool, mp4); | |
| 544 mp4 = NULL; | |
| 545 | |
| 546 break; | |
| 547 | |
| 548 case NGX_OK: | |
| 549 r->headers_out.content_length_n = mp4->content_length; | |
| 550 break; | |
| 551 | |
| 552 default: /* NGX_ERROR */ | |
| 553 if (mp4->buffer) { | |
| 554 ngx_pfree(r->pool, mp4->buffer); | |
| 555 } | |
| 556 | |
| 557 ngx_pfree(r->pool, mp4); | |
| 558 | |
| 559 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 560 } | |
| 561 } | |
| 562 } | |
| 563 } | |
| 564 | |
| 565 log->action = "sending mp4 to client"; | |
| 566 | |
| 567 if (clcf->directio <= of.size) { | |
| 568 | |
| 569 /* | |
| 570 * DIRECTIO is set on transfer only | |
| 571 * to allow kernel to cache "moov" atom | |
| 572 */ | |
| 573 | |
| 574 if (ngx_directio_on(of.fd) == NGX_FILE_ERROR) { | |
| 575 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 576 ngx_directio_on_n " \"%s\" failed", path.data); | |
| 577 } | |
| 578 | |
|
4087
3aa3b7bb9f0d
Bugfix of r4086: directio was always enabled if mp4 file was sent as is.
Igor Sysoev <igor@sysoev.ru>
parents:
4085
diff
changeset
|
579 of.is_directio = 1; |
|
3aa3b7bb9f0d
Bugfix of r4086: directio was always enabled if mp4 file was sent as is.
Igor Sysoev <igor@sysoev.ru>
parents:
4085
diff
changeset
|
580 |
| 4085 | 581 if (mp4) { |
| 582 mp4->file.directio = 1; | |
| 583 } | |
| 584 } | |
| 585 | |
| 586 r->headers_out.status = NGX_HTTP_OK; | |
| 587 r->headers_out.last_modified_time = of.mtime; | |
| 588 | |
| 589 if (ngx_http_set_content_type(r) != NGX_OK) { | |
| 590 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 591 } | |
| 592 | |
| 593 if (mp4 == NULL) { | |
| 594 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); | |
| 595 if (b == NULL) { | |
| 596 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 597 } | |
| 598 | |
| 599 b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t)); | |
| 600 if (b->file == NULL) { | |
| 601 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 602 } | |
| 603 } | |
| 604 | |
| 605 rc = ngx_http_send_header(r); | |
| 606 | |
| 607 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
| 608 return rc; | |
| 609 } | |
| 610 | |
| 611 if (mp4) { | |
| 612 return ngx_http_output_filter(r, mp4->out); | |
| 613 } | |
| 614 | |
| 615 b->file_pos = 0; | |
| 616 b->file_last = of.size; | |
| 617 | |
| 618 b->in_file = b->file_last ? 1 : 0; | |
|
4611
2b6cb7528409
Allows particular modules to handle subrequests properly.
Andrey Belov <defan@nginx.com>
parents:
4585
diff
changeset
|
619 b->last_buf = (r == r->main) ? 1 : 0; |
| 4085 | 620 b->last_in_chain = 1; |
| 621 | |
| 622 b->file->fd = of.fd; | |
| 623 b->file->name = path; | |
| 624 b->file->log = log; | |
| 625 b->file->directio = of.is_directio; | |
| 626 | |
| 627 out.buf = b; | |
| 628 out.next = NULL; | |
| 629 | |
| 630 return ngx_http_output_filter(r, &out); | |
| 631 } | |
| 632 | |
| 633 | |
| 634 static ngx_int_t | |
| 635 ngx_http_mp4_process(ngx_http_mp4_file_t *mp4) | |
| 636 { | |
| 637 off_t start_offset, adjustment; | |
| 638 ngx_int_t rc; | |
| 639 ngx_uint_t i, j; | |
| 640 ngx_chain_t **prev; | |
| 641 ngx_http_mp4_trak_t *trak; | |
| 642 ngx_http_mp4_conf_t *conf; | |
| 643 | |
| 644 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 645 "mp4 start:%ui", mp4->start); | |
| 646 | |
| 647 conf = ngx_http_get_module_loc_conf(mp4->request, ngx_http_mp4_module); | |
| 648 | |
| 649 mp4->buffer_size = conf->buffer_size; | |
| 650 | |
| 651 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_atoms, mp4->end); | |
| 652 if (rc != NGX_OK) { | |
| 653 return rc; | |
| 654 } | |
| 655 | |
| 656 if (mp4->trak.nelts == 0) { | |
| 657 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 658 "no mp4 trak atoms were found in \"%s\"", | |
| 659 mp4->file.name.data); | |
| 660 return NGX_ERROR; | |
| 661 } | |
| 662 | |
| 663 if (mp4->mdat_atom.buf == NULL) { | |
| 664 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 665 "no mp4 mdat atom was found in \"%s\"", | |
| 666 mp4->file.name.data); | |
| 667 return NGX_ERROR; | |
| 668 } | |
| 669 | |
| 670 prev = &mp4->out; | |
| 671 | |
| 672 if (mp4->ftyp_atom.buf) { | |
| 673 *prev = &mp4->ftyp_atom; | |
| 674 prev = &mp4->ftyp_atom.next; | |
| 675 } | |
| 676 | |
| 677 *prev = &mp4->moov_atom; | |
| 678 prev = &mp4->moov_atom.next; | |
| 679 | |
| 680 if (mp4->mvhd_atom.buf) { | |
| 681 mp4->moov_size += mp4->mvhd_atom_buf.last - mp4->mvhd_atom_buf.pos; | |
| 682 *prev = &mp4->mvhd_atom; | |
| 683 prev = &mp4->mvhd_atom.next; | |
| 684 } | |
| 685 | |
| 686 start_offset = mp4->end; | |
| 687 trak = mp4->trak.elts; | |
| 688 | |
| 689 for (i = 0; i < mp4->trak.nelts; i++) { | |
| 690 | |
| 691 if (ngx_http_mp4_update_stts_atom(mp4, &trak[i]) != NGX_OK) { | |
| 692 return NGX_ERROR; | |
| 693 } | |
| 694 | |
| 695 if (ngx_http_mp4_update_stss_atom(mp4, &trak[i]) != NGX_OK) { | |
| 696 return NGX_ERROR; | |
| 697 } | |
| 698 | |
| 699 ngx_http_mp4_update_ctts_atom(mp4, &trak[i]); | |
| 700 | |
| 701 if (ngx_http_mp4_update_stsc_atom(mp4, &trak[i]) != NGX_OK) { | |
| 702 return NGX_ERROR; | |
| 703 } | |
| 704 | |
|
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|
705 if (ngx_http_mp4_update_stsz_atom(mp4, &trak[i]) != NGX_OK) { |
|
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706 return NGX_ERROR; |
|
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|
707 } |
| 4085 | 708 |
| 4112 | 709 if (trak[i].out[NGX_HTTP_MP4_CO64_DATA].buf) { |
| 710 if (ngx_http_mp4_update_co64_atom(mp4, &trak[i]) != NGX_OK) { | |
| 711 return NGX_ERROR; | |
| 712 } | |
| 713 | |
| 714 } else { | |
| 715 if (ngx_http_mp4_update_stco_atom(mp4, &trak[i]) != NGX_OK) { | |
| 716 return NGX_ERROR; | |
| 717 } | |
| 4085 | 718 } |
| 719 | |
| 720 ngx_http_mp4_update_stbl_atom(mp4, &trak[i]); | |
| 721 ngx_http_mp4_update_minf_atom(mp4, &trak[i]); | |
| 722 trak[i].size += trak[i].mdhd_size; | |
| 723 trak[i].size += trak[i].hdlr_size; | |
| 724 ngx_http_mp4_update_mdia_atom(mp4, &trak[i]); | |
| 725 trak[i].size += trak[i].tkhd_size; | |
| 726 ngx_http_mp4_update_trak_atom(mp4, &trak[i]); | |
| 727 | |
| 728 mp4->moov_size += trak[i].size; | |
| 729 | |
| 730 if (start_offset > trak[i].start_offset) { | |
| 731 start_offset = trak[i].start_offset; | |
| 732 } | |
| 733 | |
| 734 *prev = &trak[i].out[NGX_HTTP_MP4_TRAK_ATOM]; | |
| 735 prev = &trak[i].out[NGX_HTTP_MP4_TRAK_ATOM].next; | |
| 736 | |
| 737 for (j = 0; j < NGX_HTTP_MP4_LAST_ATOM + 1; j++) { | |
| 738 if (trak[i].out[j].buf) { | |
| 739 *prev = &trak[i].out[j]; | |
| 740 prev = &trak[i].out[j].next; | |
| 741 } | |
| 742 } | |
| 743 } | |
| 744 | |
| 745 mp4->moov_size += 8; | |
| 746 | |
| 747 ngx_mp4_set_32value(mp4->moov_atom_header, mp4->moov_size); | |
| 748 ngx_mp4_set_atom_name(mp4->moov_atom_header, 'm', 'o', 'o', 'v'); | |
| 749 mp4->content_length += mp4->moov_size; | |
| 750 | |
| 751 *prev = &mp4->mdat_atom; | |
| 752 | |
| 753 adjustment = mp4->ftyp_size + mp4->moov_size | |
| 754 + ngx_http_mp4_update_mdat_atom(mp4, start_offset) | |
| 755 - start_offset; | |
| 756 | |
|
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|
757 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4579 | 758 "mp4 adjustment:%O", adjustment); |
| 4085 | 759 |
| 760 for (i = 0; i < mp4->trak.nelts; i++) { | |
| 4112 | 761 if (trak[i].out[NGX_HTTP_MP4_CO64_DATA].buf) { |
| 762 ngx_http_mp4_adjust_co64_atom(mp4, &trak[i], adjustment); | |
| 763 } else { | |
| 764 ngx_http_mp4_adjust_stco_atom(mp4, &trak[i], (int32_t) adjustment); | |
| 765 } | |
| 4085 | 766 } |
| 767 | |
| 768 return NGX_OK; | |
| 769 } | |
| 770 | |
| 771 | |
| 772 typedef struct { | |
| 773 u_char size[4]; | |
| 774 u_char name[4]; | |
| 775 } ngx_mp4_atom_header_t; | |
| 776 | |
| 777 typedef struct { | |
| 778 u_char size[4]; | |
| 779 u_char name[4]; | |
| 780 u_char size64[8]; | |
| 781 } ngx_mp4_atom_header64_t; | |
| 782 | |
| 783 | |
| 784 static ngx_int_t | |
| 785 ngx_http_mp4_read_atom(ngx_http_mp4_file_t *mp4, | |
| 786 ngx_http_mp4_atom_handler_t *atom, uint64_t atom_data_size) | |
| 787 { | |
| 788 off_t end; | |
| 789 size_t atom_header_size; | |
| 790 u_char *atom_header, *atom_name; | |
| 791 uint64_t atom_size; | |
| 792 ngx_int_t rc; | |
| 793 ngx_uint_t n; | |
| 794 | |
| 795 end = mp4->offset + atom_data_size; | |
| 796 | |
| 797 while (mp4->offset < end) { | |
| 798 | |
|
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799 if (ngx_http_mp4_read(mp4, sizeof(uint32_t)) != NGX_OK) { |
|
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800 return NGX_ERROR; |
| 4085 | 801 } |
| 802 | |
| 803 atom_header = mp4->buffer_pos; | |
| 804 atom_size = ngx_mp4_get_32value(atom_header); | |
| 805 atom_header_size = sizeof(ngx_mp4_atom_header_t); | |
| 806 | |
| 807 if (atom_size == 0) { | |
| 808 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 809 "mp4 atom end"); | |
| 810 return NGX_OK; | |
| 811 } | |
| 812 | |
| 813 if (atom_size < sizeof(ngx_mp4_atom_header_t)) { | |
| 814 | |
| 815 if (atom_size == 1) { | |
| 816 | |
|
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817 if (ngx_http_mp4_read(mp4, sizeof(ngx_mp4_atom_header64_t)) |
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|
818 != NGX_OK) |
| 4085 | 819 { |
|
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820 return NGX_ERROR; |
| 4085 | 821 } |
| 822 | |
| 823 /* 64-bit atom size */ | |
|
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824 atom_header = mp4->buffer_pos; |
| 4085 | 825 atom_size = ngx_mp4_get_64value(atom_header + 8); |
| 826 atom_header_size = sizeof(ngx_mp4_atom_header64_t); | |
| 827 | |
| 828 } else { | |
| 829 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 830 "\"%s\" mp4 atom is too small:%uL", | |
| 831 mp4->file.name.data, atom_size); | |
| 832 return NGX_ERROR; | |
| 833 } | |
| 834 } | |
| 835 | |
|
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836 if (ngx_http_mp4_read(mp4, sizeof(ngx_mp4_atom_header_t)) != NGX_OK) { |
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837 return NGX_ERROR; |
| 4085 | 838 } |
| 839 | |
|
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|
840 atom_header = mp4->buffer_pos; |
| 4085 | 841 atom_name = atom_header + sizeof(uint32_t); |
| 842 | |
|
4088
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parents:
4087
diff
changeset
|
843 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 844 "mp4 atom: %*s @%O:%uL", |
| 845 4, atom_name, mp4->offset, atom_size); | |
| 846 | |
|
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847 if (atom_size > (uint64_t) (NGX_MAX_OFF_T_VALUE - mp4->offset) |
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848 || mp4->offset + (off_t) atom_size > end) |
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|
849 { |
|
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850 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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851 "\"%s\" mp4 atom too large:%uL", |
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852 mp4->file.name.data, atom_size); |
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853 return NGX_ERROR; |
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854 } |
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|
855 |
| 4085 | 856 for (n = 0; atom[n].name; n++) { |
| 857 | |
| 858 if (ngx_strncmp(atom_name, atom[n].name, 4) == 0) { | |
| 859 | |
| 860 ngx_mp4_atom_next(mp4, atom_header_size); | |
| 861 | |
| 862 rc = atom[n].handler(mp4, atom_size - atom_header_size); | |
| 863 if (rc != NGX_OK) { | |
| 864 return rc; | |
| 865 } | |
| 866 | |
| 867 goto next; | |
| 868 } | |
| 869 } | |
| 870 | |
| 871 ngx_mp4_atom_next(mp4, atom_size); | |
| 872 | |
| 873 next: | |
| 874 continue; | |
| 875 } | |
| 876 | |
| 877 return NGX_OK; | |
| 878 } | |
| 879 | |
| 880 | |
| 881 static ngx_int_t | |
|
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|
882 ngx_http_mp4_read(ngx_http_mp4_file_t *mp4, size_t size) |
| 4085 | 883 { |
|
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884 ssize_t n; |
|
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|
885 |
|
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886 if (mp4->buffer_pos + size <= mp4->buffer_end) { |
|
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887 return NGX_OK; |
|
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|
888 } |
| 4085 | 889 |
| 890 if (mp4->offset + (off_t) mp4->buffer_size > mp4->end) { | |
| 891 mp4->buffer_size = (size_t) (mp4->end - mp4->offset); | |
| 892 } | |
| 893 | |
|
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|
894 if (mp4->buffer_size < size) { |
|
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|
895 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
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|
896 "\"%s\" mp4 file truncated", mp4->file.name.data); |
|
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|
897 return NGX_ERROR; |
|
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|
898 } |
|
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|
899 |
| 4085 | 900 if (mp4->buffer == NULL) { |
| 901 mp4->buffer = ngx_palloc(mp4->request->pool, mp4->buffer_size); | |
| 902 if (mp4->buffer == NULL) { | |
| 903 return NGX_ERROR; | |
| 904 } | |
| 905 | |
| 906 mp4->buffer_start = mp4->buffer; | |
| 907 } | |
| 908 | |
| 909 n = ngx_read_file(&mp4->file, mp4->buffer_start, mp4->buffer_size, | |
| 910 mp4->offset); | |
| 911 | |
| 912 if (n == NGX_ERROR) { | |
| 913 return NGX_ERROR; | |
| 914 } | |
| 915 | |
|
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|
916 if ((size_t) n != mp4->buffer_size) { |
|
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|
917 ngx_log_error(NGX_LOG_CRIT, mp4->file.log, 0, |
|
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|
918 ngx_read_file_n " read only %z of %z from \"%s\"", |
|
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|
919 n, mp4->buffer_size, mp4->file.name.data); |
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|
920 return NGX_ERROR; |
| 4085 | 921 } |
| 922 | |
| 923 mp4->buffer_pos = mp4->buffer_start; | |
|
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|
924 mp4->buffer_end = mp4->buffer_start + mp4->buffer_size; |
| 4085 | 925 |
| 926 return NGX_OK; | |
| 927 } | |
| 928 | |
| 929 | |
| 930 static ngx_int_t | |
| 931 ngx_http_mp4_read_ftyp_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 932 { | |
| 933 u_char *ftyp_atom; | |
| 934 size_t atom_size; | |
| 935 ngx_buf_t *atom; | |
| 936 | |
| 937 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 ftyp atom"); | |
| 938 | |
|
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|
939 if (atom_data_size > 1024 |
|
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|
940 || ngx_mp4_atom_data(mp4) + atom_data_size > mp4->buffer_end) |
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|
941 { |
| 4085 | 942 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
| 943 "\"%s\" mp4 ftyp atom is too large:%uL", | |
| 944 mp4->file.name.data, atom_data_size); | |
| 945 return NGX_ERROR; | |
| 946 } | |
| 947 | |
| 948 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 949 | |
| 950 ftyp_atom = ngx_palloc(mp4->request->pool, atom_size); | |
| 951 if (ftyp_atom == NULL) { | |
| 952 return NGX_ERROR; | |
| 953 } | |
| 954 | |
| 955 ngx_mp4_set_32value(ftyp_atom, atom_size); | |
| 956 ngx_mp4_set_atom_name(ftyp_atom, 'f', 't', 'y', 'p'); | |
| 957 | |
| 958 /* | |
| 959 * only moov atom content is guaranteed to be in mp4->buffer | |
| 960 * during sending response, so ftyp atom content should be copied | |
| 961 */ | |
| 962 ngx_memcpy(ftyp_atom + sizeof(ngx_mp4_atom_header_t), | |
| 963 ngx_mp4_atom_data(mp4), (size_t) atom_data_size); | |
| 964 | |
| 965 atom = &mp4->ftyp_atom_buf; | |
| 966 atom->temporary = 1; | |
| 967 atom->pos = ftyp_atom; | |
| 968 atom->last = ftyp_atom + atom_size; | |
| 969 | |
| 970 mp4->ftyp_atom.buf = atom; | |
| 971 mp4->ftyp_size = atom_size; | |
| 972 mp4->content_length = atom_size; | |
| 973 | |
| 974 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 975 | |
| 976 return NGX_OK; | |
| 977 } | |
| 978 | |
| 979 | |
| 980 /* | |
| 981 * Small excess buffer to process atoms after moov atom, mp4->buffer_start | |
| 982 * will be set to this buffer part after moov atom processing. | |
| 983 */ | |
| 984 #define NGX_HTTP_MP4_MOOV_BUFFER_EXCESS (4 * 1024) | |
| 985 | |
| 986 static ngx_int_t | |
| 987 ngx_http_mp4_read_moov_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 988 { | |
| 989 ngx_int_t rc; | |
| 990 ngx_uint_t no_mdat; | |
| 991 ngx_buf_t *atom; | |
| 992 ngx_http_mp4_conf_t *conf; | |
| 993 | |
| 994 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 moov atom"); | |
| 995 | |
| 996 no_mdat = (mp4->mdat_atom.buf == NULL); | |
| 997 | |
| 998 if (no_mdat && mp4->start == 0) { | |
| 999 /* | |
| 1000 * send original file if moov atom resides before | |
| 1001 * mdat atom and client requests integral file | |
| 1002 */ | |
| 1003 return NGX_DECLINED; | |
| 1004 } | |
| 1005 | |
| 1006 conf = ngx_http_get_module_loc_conf(mp4->request, ngx_http_mp4_module); | |
| 1007 | |
| 1008 if (atom_data_size > mp4->buffer_size) { | |
| 1009 | |
|
4089
e27670e1ab70
mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
1010 if (atom_data_size > conf->max_buffer_size) { |
| 4085 | 1011 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
| 1012 "\"%s\" mp4 moov atom is too large:%uL, " | |
|
4089
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mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
1013 "you may want to increase mp4_max_buffer_size", |
| 4085 | 1014 mp4->file.name.data, atom_data_size); |
| 1015 return NGX_ERROR; | |
| 1016 } | |
| 1017 | |
| 1018 ngx_pfree(mp4->request->pool, mp4->buffer); | |
| 1019 mp4->buffer = NULL; | |
| 1020 mp4->buffer_pos = NULL; | |
| 1021 mp4->buffer_end = NULL; | |
| 1022 | |
| 1023 mp4->buffer_size = (size_t) atom_data_size | |
| 1024 + NGX_HTTP_MP4_MOOV_BUFFER_EXCESS * no_mdat; | |
| 1025 } | |
| 1026 | |
|
4688
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4687
diff
changeset
|
1027 if (ngx_http_mp4_read(mp4, atom_data_size) != NGX_OK) { |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4687
diff
changeset
|
1028 return NGX_ERROR; |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4687
diff
changeset
|
1029 } |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
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parents:
4687
diff
changeset
|
1030 |
| 4085 | 1031 mp4->trak.elts = &mp4->traks; |
| 1032 mp4->trak.size = sizeof(ngx_http_mp4_trak_t); | |
| 1033 mp4->trak.nalloc = 2; | |
| 1034 mp4->trak.pool = mp4->request->pool; | |
| 1035 | |
| 1036 atom = &mp4->moov_atom_buf; | |
| 1037 atom->temporary = 1; | |
| 1038 atom->pos = mp4->moov_atom_header; | |
| 1039 atom->last = mp4->moov_atom_header + 8; | |
| 1040 | |
| 1041 mp4->moov_atom.buf = &mp4->moov_atom_buf; | |
| 1042 | |
| 1043 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_moov_atoms, atom_data_size); | |
| 1044 | |
| 1045 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 moov atom done"); | |
| 1046 | |
| 1047 if (no_mdat) { | |
| 1048 mp4->buffer_start = mp4->buffer_pos; | |
| 1049 mp4->buffer_size = NGX_HTTP_MP4_MOOV_BUFFER_EXCESS; | |
| 1050 | |
|
4688
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Mp4: fixed streaming if moov atom is at buffer edge.
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parents:
4687
diff
changeset
|
1051 if (mp4->buffer_start + mp4->buffer_size > mp4->buffer_end) { |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
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parents:
4687
diff
changeset
|
1052 mp4->buffer = NULL; |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
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parents:
4687
diff
changeset
|
1053 mp4->buffer_pos = NULL; |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
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parents:
4687
diff
changeset
|
1054 mp4->buffer_end = NULL; |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4687
diff
changeset
|
1055 } |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
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parents:
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diff
changeset
|
1056 |
| 4085 | 1057 } else { |
| 1058 /* skip atoms after moov atom */ | |
| 1059 mp4->offset = mp4->end; | |
| 1060 } | |
| 1061 | |
| 1062 return rc; | |
| 1063 } | |
| 1064 | |
| 1065 | |
| 1066 static ngx_int_t | |
| 1067 ngx_http_mp4_read_mdat_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1068 { | |
| 1069 ngx_buf_t *data; | |
| 1070 | |
| 1071 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mdat atom"); | |
| 1072 | |
| 1073 data = &mp4->mdat_data_buf; | |
| 1074 data->file = &mp4->file; | |
| 1075 data->in_file = 1; | |
| 1076 data->last_buf = 1; | |
| 1077 data->last_in_chain = 1; | |
| 1078 data->file_last = mp4->offset + atom_data_size; | |
| 1079 | |
| 1080 mp4->mdat_atom.buf = &mp4->mdat_atom_buf; | |
| 1081 mp4->mdat_atom.next = &mp4->mdat_data; | |
| 1082 mp4->mdat_data.buf = data; | |
| 1083 | |
| 1084 if (mp4->trak.nelts) { | |
| 1085 /* skip atoms after mdat atom */ | |
| 1086 mp4->offset = mp4->end; | |
| 1087 | |
| 1088 } else { | |
| 1089 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1090 } | |
| 1091 | |
| 1092 return NGX_OK; | |
| 1093 } | |
| 1094 | |
| 1095 | |
| 1096 static size_t | |
| 1097 ngx_http_mp4_update_mdat_atom(ngx_http_mp4_file_t *mp4, off_t start_offset) | |
| 1098 { | |
| 1099 off_t atom_data_size; | |
| 1100 u_char *atom_header; | |
| 1101 uint32_t atom_header_size; | |
| 1102 uint64_t atom_size; | |
| 1103 ngx_buf_t *atom; | |
| 1104 | |
| 1105 atom_data_size = mp4->mdat_data.buf->file_last - start_offset; | |
| 1106 mp4->mdat_data.buf->file_pos = start_offset; | |
| 1107 | |
|
4088
8fe1da7b8386
bugfix of r4086: nginx could not be built without debug log.
Igor Sysoev <igor@sysoev.ru>
parents:
4087
diff
changeset
|
1108 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 1109 "mdat new offset @%O:%O", start_offset, atom_data_size); |
| 1110 | |
| 1111 atom_header = mp4->mdat_atom_header; | |
| 1112 | |
|
4155
d9636bf3f159
Fix of building on platforms with 32-bit off_t. (closed #23)
Igor Sysoev <igor@sysoev.ru>
parents:
4112
diff
changeset
|
1113 if ((uint64_t) atom_data_size > 0xffffffff) { |
| 4085 | 1114 atom_size = 1; |
| 1115 atom_header_size = sizeof(ngx_mp4_atom_header64_t); | |
| 1116 ngx_mp4_set_64value(atom_header + sizeof(ngx_mp4_atom_header_t), | |
| 1117 sizeof(ngx_mp4_atom_header64_t) + atom_data_size); | |
| 1118 } else { | |
| 1119 atom_size = sizeof(ngx_mp4_atom_header_t) + atom_data_size; | |
| 1120 atom_header_size = sizeof(ngx_mp4_atom_header_t); | |
| 1121 } | |
| 1122 | |
|
4282
71cdac0b9ea6
Fix of "Content-Length" header of MP4 response if start argument was used.
Igor Sysoev <igor@sysoev.ru>
parents:
4189
diff
changeset
|
1123 mp4->content_length += atom_header_size + atom_data_size; |
|
71cdac0b9ea6
Fix of "Content-Length" header of MP4 response if start argument was used.
Igor Sysoev <igor@sysoev.ru>
parents:
4189
diff
changeset
|
1124 |
| 4085 | 1125 ngx_mp4_set_32value(atom_header, atom_size); |
| 1126 ngx_mp4_set_atom_name(atom_header, 'm', 'd', 'a', 't'); | |
| 1127 | |
| 1128 atom = &mp4->mdat_atom_buf; | |
| 1129 atom->temporary = 1; | |
| 1130 atom->pos = atom_header; | |
| 1131 atom->last = atom_header + atom_header_size; | |
| 1132 | |
| 1133 return atom_header_size; | |
| 1134 } | |
| 1135 | |
| 1136 | |
| 1137 typedef struct { | |
| 1138 u_char size[4]; | |
| 1139 u_char name[4]; | |
| 1140 u_char version[1]; | |
| 1141 u_char flags[3]; | |
| 1142 u_char creation_time[4]; | |
| 1143 u_char modification_time[4]; | |
| 1144 u_char timescale[4]; | |
| 1145 u_char duration[4]; | |
| 1146 u_char rate[4]; | |
| 1147 u_char volume[2]; | |
| 1148 u_char reserved[10]; | |
| 1149 u_char matrix[36]; | |
| 1150 u_char preview_time[4]; | |
| 1151 u_char preview_duration[4]; | |
| 1152 u_char poster_time[4]; | |
| 1153 u_char selection_time[4]; | |
| 1154 u_char selection_duration[4]; | |
| 1155 u_char current_time[4]; | |
| 1156 u_char next_track_id[4]; | |
| 1157 } ngx_mp4_mvhd_atom_t; | |
| 1158 | |
| 1159 typedef struct { | |
| 1160 u_char size[4]; | |
| 1161 u_char name[4]; | |
| 1162 u_char version[1]; | |
| 1163 u_char flags[3]; | |
| 1164 u_char creation_time[8]; | |
| 1165 u_char modification_time[8]; | |
| 1166 u_char timescale[4]; | |
| 1167 u_char duration[8]; | |
| 1168 u_char rate[4]; | |
| 1169 u_char volume[2]; | |
| 1170 u_char reserved[10]; | |
| 1171 u_char matrix[36]; | |
| 1172 u_char preview_time[4]; | |
| 1173 u_char preview_duration[4]; | |
| 1174 u_char poster_time[4]; | |
| 1175 u_char selection_time[4]; | |
| 1176 u_char selection_duration[4]; | |
| 1177 u_char current_time[4]; | |
| 1178 u_char next_track_id[4]; | |
| 1179 } ngx_mp4_mvhd64_atom_t; | |
| 1180 | |
| 1181 | |
| 1182 static ngx_int_t | |
| 1183 ngx_http_mp4_read_mvhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1184 { | |
| 1185 u_char *atom_header; | |
| 1186 size_t atom_size; | |
| 1187 uint32_t timescale; | |
| 1188 uint64_t duration; | |
| 1189 ngx_buf_t *atom; | |
| 1190 ngx_mp4_mvhd_atom_t *mvhd_atom; | |
| 1191 ngx_mp4_mvhd64_atom_t *mvhd64_atom; | |
| 1192 | |
| 1193 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mvhd atom"); | |
| 1194 | |
| 1195 atom_header = ngx_mp4_atom_header(mp4); | |
| 1196 mvhd_atom = (ngx_mp4_mvhd_atom_t *) atom_header; | |
| 1197 mvhd64_atom = (ngx_mp4_mvhd64_atom_t *) atom_header; | |
| 1198 ngx_mp4_set_atom_name(atom_header, 'm', 'v', 'h', 'd'); | |
| 1199 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
1200 if (ngx_mp4_atom_data_size(ngx_mp4_mvhd_atom_t) > atom_data_size) { |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
1201 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
1202 "\"%s\" mp4 mvhd atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
1203 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
1204 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
1205 |
| 4085 | 1206 if (mvhd_atom->version[0] == 0) { |
| 1207 /* version 0: 32-bit duration */ | |
| 1208 timescale = ngx_mp4_get_32value(mvhd_atom->timescale); | |
| 1209 duration = ngx_mp4_get_32value(mvhd_atom->duration); | |
| 1210 | |
| 1211 } else { | |
| 1212 /* version 1: 64-bit duration */ | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
1213 |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
1214 if (ngx_mp4_atom_data_size(ngx_mp4_mvhd64_atom_t) > atom_data_size) { |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
1215 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
1216 "\"%s\" mp4 mvhd atom too small", |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
1217 mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
1218 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
1219 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
1220 |
| 4085 | 1221 timescale = ngx_mp4_get_32value(mvhd64_atom->timescale); |
| 1222 duration = ngx_mp4_get_64value(mvhd64_atom->duration); | |
| 1223 } | |
| 1224 | |
| 1225 mp4->timescale = timescale; | |
| 1226 | |
| 1227 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1228 "mvhd timescale:%uD, duration:%uL, time:%.3fs", | |
| 1229 timescale, duration, (double) duration / timescale); | |
| 1230 | |
| 1231 duration -= (uint64_t) mp4->start * timescale / 1000; | |
| 1232 | |
| 1233 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1234 "mvhd new duration:%uL, time:%.3fs", | |
| 1235 duration, (double) duration / timescale); | |
| 1236 | |
| 1237 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1238 ngx_mp4_set_32value(mvhd_atom->size, atom_size); | |
| 1239 | |
| 1240 if (mvhd_atom->version[0] == 0) { | |
| 1241 ngx_mp4_set_32value(mvhd_atom->duration, duration); | |
| 1242 | |
| 1243 } else { | |
| 1244 ngx_mp4_set_64value(mvhd64_atom->duration, duration); | |
| 1245 } | |
| 1246 | |
| 1247 atom = &mp4->mvhd_atom_buf; | |
| 1248 atom->temporary = 1; | |
| 1249 atom->pos = atom_header; | |
| 1250 atom->last = atom_header + atom_size; | |
| 1251 | |
| 1252 mp4->mvhd_atom.buf = atom; | |
| 1253 | |
| 1254 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1255 | |
| 1256 return NGX_OK; | |
| 1257 } | |
| 1258 | |
| 1259 | |
| 1260 static ngx_int_t | |
| 1261 ngx_http_mp4_read_trak_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1262 { | |
|
4099
9ee6944590c0
Skipping traks with unsupported media formats.
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parents:
4098
diff
changeset
|
1263 u_char *atom_header, *atom_end; |
|
9ee6944590c0
Skipping traks with unsupported media formats.
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parents:
4098
diff
changeset
|
1264 off_t atom_file_end; |
|
9ee6944590c0
Skipping traks with unsupported media formats.
Igor Sysoev <igor@sysoev.ru>
parents:
4098
diff
changeset
|
1265 ngx_int_t rc; |
| 4085 | 1266 ngx_buf_t *atom; |
| 1267 ngx_http_mp4_trak_t *trak; | |
| 1268 | |
| 1269 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 trak atom"); | |
| 1270 | |
| 1271 trak = ngx_array_push(&mp4->trak); | |
| 1272 if (trak == NULL) { | |
| 1273 return NGX_ERROR; | |
| 1274 } | |
| 1275 | |
| 1276 ngx_memzero(trak, sizeof(ngx_http_mp4_trak_t)); | |
| 1277 | |
| 1278 atom_header = ngx_mp4_atom_header(mp4); | |
| 1279 ngx_mp4_set_atom_name(atom_header, 't', 'r', 'a', 'k'); | |
| 1280 | |
| 1281 atom = &trak->trak_atom_buf; | |
| 1282 atom->temporary = 1; | |
| 1283 atom->pos = atom_header; | |
| 1284 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1285 | |
| 1286 trak->out[NGX_HTTP_MP4_TRAK_ATOM].buf = atom; | |
| 1287 | |
|
4099
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Skipping traks with unsupported media formats.
Igor Sysoev <igor@sysoev.ru>
parents:
4098
diff
changeset
|
1288 atom_end = mp4->buffer_pos + atom_data_size; |
|
9ee6944590c0
Skipping traks with unsupported media formats.
Igor Sysoev <igor@sysoev.ru>
parents:
4098
diff
changeset
|
1289 atom_file_end = mp4->offset + atom_data_size; |
|
9ee6944590c0
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Igor Sysoev <igor@sysoev.ru>
parents:
4098
diff
changeset
|
1290 |
|
9ee6944590c0
Skipping traks with unsupported media formats.
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4098
diff
changeset
|
1291 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_trak_atoms, atom_data_size); |
|
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Skipping traks with unsupported media formats.
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diff
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|
1292 |
|
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changeset
|
1293 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
|
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Skipping traks with unsupported media formats.
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changeset
|
1294 "mp4 trak atom: %i", rc); |
|
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Skipping traks with unsupported media formats.
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parents:
4098
diff
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|
1295 |
|
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changeset
|
1296 if (rc == NGX_DECLINED) { |
|
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parents:
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diff
changeset
|
1297 /* skip this trak */ |
|
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4098
diff
changeset
|
1298 ngx_memzero(trak, sizeof(ngx_http_mp4_trak_t)); |
|
9ee6944590c0
Skipping traks with unsupported media formats.
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parents:
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diff
changeset
|
1299 mp4->trak.nelts--; |
|
9ee6944590c0
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1300 mp4->buffer_pos = atom_end; |
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1301 mp4->offset = atom_file_end; |
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1302 return NGX_OK; |
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1303 } |
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1304 |
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1305 return rc; |
| 4085 | 1306 } |
| 1307 | |
| 1308 | |
| 1309 static void | |
| 1310 ngx_http_mp4_update_trak_atom(ngx_http_mp4_file_t *mp4, | |
| 1311 ngx_http_mp4_trak_t *trak) | |
| 1312 { | |
| 1313 ngx_buf_t *atom; | |
| 1314 | |
| 1315 trak->size += sizeof(ngx_mp4_atom_header_t); | |
| 1316 atom = &trak->trak_atom_buf; | |
| 1317 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1318 } | |
| 1319 | |
| 1320 | |
| 1321 static ngx_int_t | |
| 1322 ngx_http_mp4_read_cmov_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1323 { | |
| 1324 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 1325 "\"%s\" mp4 compressed moov atom (cmov) is not supported", | |
| 1326 mp4->file.name.data); | |
| 1327 | |
| 1328 return NGX_ERROR; | |
| 1329 } | |
| 1330 | |
| 1331 | |
| 1332 typedef struct { | |
| 1333 u_char size[4]; | |
| 1334 u_char name[4]; | |
| 1335 u_char version[1]; | |
| 1336 u_char flags[3]; | |
| 1337 u_char creation_time[4]; | |
| 1338 u_char modification_time[4]; | |
| 1339 u_char track_id[4]; | |
| 1340 u_char reserved1[4]; | |
| 1341 u_char duration[4]; | |
| 1342 u_char reserved2[8]; | |
| 1343 u_char layer[2]; | |
| 1344 u_char group[2]; | |
| 1345 u_char volume[2]; | |
| 1346 u_char reverved3[2]; | |
| 1347 u_char matrix[36]; | |
| 1348 u_char width[4]; | |
| 1349 u_char heigth[4]; | |
| 1350 } ngx_mp4_tkhd_atom_t; | |
| 1351 | |
| 1352 typedef struct { | |
| 1353 u_char size[4]; | |
| 1354 u_char name[4]; | |
| 1355 u_char version[1]; | |
| 1356 u_char flags[3]; | |
| 1357 u_char creation_time[8]; | |
| 1358 u_char modification_time[8]; | |
| 1359 u_char track_id[4]; | |
| 1360 u_char reserved1[4]; | |
| 1361 u_char duration[8]; | |
| 1362 u_char reserved2[8]; | |
| 1363 u_char layer[2]; | |
| 1364 u_char group[2]; | |
| 1365 u_char volume[2]; | |
| 1366 u_char reverved3[2]; | |
| 1367 u_char matrix[36]; | |
| 1368 u_char width[4]; | |
| 1369 u_char heigth[4]; | |
| 1370 } ngx_mp4_tkhd64_atom_t; | |
| 1371 | |
| 1372 | |
| 1373 static ngx_int_t | |
| 1374 ngx_http_mp4_read_tkhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1375 { | |
| 1376 u_char *atom_header; | |
| 1377 size_t atom_size; | |
| 1378 uint64_t duration; | |
| 1379 ngx_buf_t *atom; | |
| 1380 ngx_http_mp4_trak_t *trak; | |
| 1381 ngx_mp4_tkhd_atom_t *tkhd_atom; | |
| 1382 ngx_mp4_tkhd64_atom_t *tkhd64_atom; | |
| 1383 | |
| 1384 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 tkhd atom"); | |
| 1385 | |
| 1386 atom_header = ngx_mp4_atom_header(mp4); | |
| 1387 tkhd_atom = (ngx_mp4_tkhd_atom_t *) atom_header; | |
| 1388 tkhd64_atom = (ngx_mp4_tkhd64_atom_t *) atom_header; | |
| 1389 ngx_mp4_set_atom_name(tkhd_atom, 't', 'k', 'h', 'd'); | |
| 1390 | |
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1391 if (ngx_mp4_atom_data_size(ngx_mp4_tkhd_atom_t) > atom_data_size) { |
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1392 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1393 "\"%s\" mp4 tkhd atom too small", mp4->file.name.data); |
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1394 return NGX_ERROR; |
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1395 } |
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1396 |
| 4085 | 1397 if (tkhd_atom->version[0] == 0) { |
| 1398 /* version 0: 32-bit duration */ | |
| 1399 duration = ngx_mp4_get_32value(tkhd_atom->duration); | |
| 1400 | |
| 1401 } else { | |
| 1402 /* version 1: 64-bit duration */ | |
|
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1403 |
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1404 if (ngx_mp4_atom_data_size(ngx_mp4_tkhd64_atom_t) > atom_data_size) { |
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1405 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1406 "\"%s\" mp4 tkhd atom too small", |
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1407 mp4->file.name.data); |
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1408 return NGX_ERROR; |
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1409 } |
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1410 |
| 4085 | 1411 duration = ngx_mp4_get_64value(tkhd64_atom->duration); |
| 1412 } | |
| 1413 | |
| 1414 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1415 "tkhd duration:%uL, time:%.3fs", | |
| 1416 duration, (double) duration / mp4->timescale); | |
| 1417 | |
| 1418 duration -= (uint64_t) mp4->start * mp4->timescale / 1000; | |
| 1419 | |
| 1420 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1421 "tkhd new duration:%uL, time:%.3fs", | |
| 1422 duration, (double) duration / mp4->timescale); | |
| 1423 | |
| 1424 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1425 | |
| 1426 trak = ngx_mp4_last_trak(mp4); | |
| 1427 trak->tkhd_size = atom_size; | |
| 1428 | |
| 1429 ngx_mp4_set_32value(tkhd_atom->size, atom_size); | |
| 1430 | |
| 1431 if (tkhd_atom->version[0] == 0) { | |
| 1432 ngx_mp4_set_32value(tkhd_atom->duration, duration); | |
| 1433 | |
| 1434 } else { | |
| 1435 ngx_mp4_set_64value(tkhd64_atom->duration, duration); | |
| 1436 } | |
| 1437 | |
| 1438 atom = &trak->tkhd_atom_buf; | |
| 1439 atom->temporary = 1; | |
| 1440 atom->pos = atom_header; | |
| 1441 atom->last = atom_header + atom_size; | |
| 1442 | |
| 1443 trak->out[NGX_HTTP_MP4_TKHD_ATOM].buf = atom; | |
| 1444 | |
| 1445 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1446 | |
| 1447 return NGX_OK; | |
| 1448 } | |
| 1449 | |
| 1450 | |
| 1451 static ngx_int_t | |
| 1452 ngx_http_mp4_read_mdia_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1453 { | |
| 1454 u_char *atom_header; | |
| 1455 ngx_buf_t *atom; | |
| 1456 ngx_http_mp4_trak_t *trak; | |
| 1457 | |
| 1458 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process mdia atom"); | |
| 1459 | |
| 1460 atom_header = ngx_mp4_atom_header(mp4); | |
| 1461 ngx_mp4_set_atom_name(atom_header, 'm', 'd', 'i', 'a'); | |
| 1462 | |
| 1463 trak = ngx_mp4_last_trak(mp4); | |
| 1464 | |
| 1465 atom = &trak->mdia_atom_buf; | |
| 1466 atom->temporary = 1; | |
| 1467 atom->pos = atom_header; | |
| 1468 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1469 | |
| 1470 trak->out[NGX_HTTP_MP4_MDIA_ATOM].buf = atom; | |
| 1471 | |
| 1472 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_mdia_atoms, atom_data_size); | |
| 1473 } | |
| 1474 | |
| 1475 | |
| 1476 static void | |
| 1477 ngx_http_mp4_update_mdia_atom(ngx_http_mp4_file_t *mp4, | |
| 1478 ngx_http_mp4_trak_t *trak) | |
| 1479 { | |
| 1480 ngx_buf_t *atom; | |
| 1481 | |
| 1482 trak->size += sizeof(ngx_mp4_atom_header_t); | |
| 1483 atom = &trak->mdia_atom_buf; | |
| 1484 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1485 } | |
| 1486 | |
| 1487 | |
| 1488 typedef struct { | |
| 1489 u_char size[4]; | |
| 1490 u_char name[4]; | |
| 1491 u_char version[1]; | |
| 1492 u_char flags[3]; | |
| 1493 u_char creation_time[4]; | |
| 1494 u_char modification_time[4]; | |
| 1495 u_char timescale[4]; | |
| 1496 u_char duration[4]; | |
| 1497 u_char language[2]; | |
| 1498 u_char quality[2]; | |
| 1499 } ngx_mp4_mdhd_atom_t; | |
| 1500 | |
| 1501 typedef struct { | |
| 1502 u_char size[4]; | |
| 1503 u_char name[4]; | |
| 1504 u_char version[1]; | |
| 1505 u_char flags[3]; | |
| 1506 u_char creation_time[8]; | |
| 1507 u_char modification_time[8]; | |
| 1508 u_char timescale[4]; | |
| 1509 u_char duration[8]; | |
| 1510 u_char language[2]; | |
| 1511 u_char quality[2]; | |
| 1512 } ngx_mp4_mdhd64_atom_t; | |
| 1513 | |
| 1514 | |
| 1515 static ngx_int_t | |
| 1516 ngx_http_mp4_read_mdhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1517 { | |
| 1518 u_char *atom_header; | |
| 1519 size_t atom_size; | |
| 1520 uint32_t timescale; | |
| 1521 uint64_t duration; | |
| 1522 ngx_buf_t *atom; | |
| 1523 ngx_http_mp4_trak_t *trak; | |
| 1524 ngx_mp4_mdhd_atom_t *mdhd_atom; | |
| 1525 ngx_mp4_mdhd64_atom_t *mdhd64_atom; | |
| 1526 | |
| 1527 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mdhd atom"); | |
| 1528 | |
| 1529 atom_header = ngx_mp4_atom_header(mp4); | |
| 1530 mdhd_atom = (ngx_mp4_mdhd_atom_t *) atom_header; | |
| 1531 mdhd64_atom = (ngx_mp4_mdhd64_atom_t *) atom_header; | |
| 1532 ngx_mp4_set_atom_name(mdhd_atom, 'm', 'd', 'h', 'd'); | |
| 1533 | |
|
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1534 if (ngx_mp4_atom_data_size(ngx_mp4_mdhd_atom_t) > atom_data_size) { |
|
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1535 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
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|
1536 "\"%s\" mp4 mdhd atom too small", mp4->file.name.data); |
|
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1537 return NGX_ERROR; |
|
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1538 } |
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1539 |
| 4085 | 1540 if (mdhd_atom->version[0] == 0) { |
| 1541 /* version 0: everything is 32-bit */ | |
| 1542 timescale = ngx_mp4_get_32value(mdhd_atom->timescale); | |
| 1543 duration = ngx_mp4_get_32value(mdhd_atom->duration); | |
| 1544 | |
| 1545 } else { | |
| 1546 /* version 1: 64-bit duration and 32-bit timescale */ | |
|
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1547 |
|
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1548 if (ngx_mp4_atom_data_size(ngx_mp4_mdhd64_atom_t) > atom_data_size) { |
|
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1549 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
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1550 "\"%s\" mp4 mdhd atom too small", |
|
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|
1551 mp4->file.name.data); |
|
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1552 return NGX_ERROR; |
|
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|
1553 } |
|
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|
1554 |
| 4085 | 1555 timescale = ngx_mp4_get_32value(mdhd64_atom->timescale); |
| 1556 duration = ngx_mp4_get_64value(mdhd64_atom->duration); | |
| 1557 } | |
| 1558 | |
| 1559 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1560 "mdhd timescale:%uD, duration:%uL, time:%.3fs", | |
| 1561 timescale, duration, (double) duration / timescale); | |
| 1562 | |
| 1563 duration -= (uint64_t) mp4->start * timescale / 1000; | |
| 1564 | |
| 1565 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1566 "mdhd new duration:%uL, time:%.3fs", | |
| 1567 duration, (double) duration / timescale); | |
| 1568 | |
| 1569 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1570 | |
| 1571 trak = ngx_mp4_last_trak(mp4); | |
| 1572 trak->mdhd_size = atom_size; | |
| 1573 trak->timescale = timescale; | |
| 1574 | |
| 1575 ngx_mp4_set_32value(mdhd_atom->size, atom_size); | |
| 1576 | |
| 1577 if (mdhd_atom->version[0] == 0) { | |
| 1578 ngx_mp4_set_32value(mdhd_atom->duration, duration); | |
| 1579 | |
| 1580 } else { | |
| 1581 ngx_mp4_set_64value(mdhd64_atom->duration, duration); | |
| 1582 } | |
| 1583 | |
| 1584 atom = &trak->mdhd_atom_buf; | |
| 1585 atom->temporary = 1; | |
| 1586 atom->pos = atom_header; | |
| 1587 atom->last = atom_header + atom_size; | |
| 1588 | |
| 1589 trak->out[NGX_HTTP_MP4_MDHD_ATOM].buf = atom; | |
| 1590 | |
| 1591 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1592 | |
| 1593 return NGX_OK; | |
| 1594 } | |
| 1595 | |
| 1596 | |
| 1597 static ngx_int_t | |
| 1598 ngx_http_mp4_read_hdlr_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1599 { | |
| 1600 u_char *atom_header; | |
| 1601 size_t atom_size; | |
| 1602 ngx_buf_t *atom; | |
| 1603 ngx_http_mp4_trak_t *trak; | |
| 1604 | |
| 1605 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 hdlr atom"); | |
| 1606 | |
| 1607 atom_header = ngx_mp4_atom_header(mp4); | |
| 1608 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1609 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1610 ngx_mp4_set_atom_name(atom_header, 'h', 'd', 'l', 'r'); | |
| 1611 | |
| 1612 trak = ngx_mp4_last_trak(mp4); | |
| 1613 | |
| 1614 atom = &trak->hdlr_atom_buf; | |
| 1615 atom->temporary = 1; | |
| 1616 atom->pos = atom_header; | |
| 1617 atom->last = atom_header + atom_size; | |
| 1618 | |
| 1619 trak->hdlr_size = atom_size; | |
| 1620 trak->out[NGX_HTTP_MP4_HDLR_ATOM].buf = atom; | |
| 1621 | |
| 1622 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1623 | |
| 1624 return NGX_OK; | |
| 1625 } | |
| 1626 | |
| 1627 | |
| 1628 static ngx_int_t | |
| 1629 ngx_http_mp4_read_minf_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1630 { | |
| 1631 u_char *atom_header; | |
| 1632 ngx_buf_t *atom; | |
| 1633 ngx_http_mp4_trak_t *trak; | |
| 1634 | |
| 1635 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process minf atom"); | |
| 1636 | |
| 1637 atom_header = ngx_mp4_atom_header(mp4); | |
| 1638 ngx_mp4_set_atom_name(atom_header, 'm', 'i', 'n', 'f'); | |
| 1639 | |
| 1640 trak = ngx_mp4_last_trak(mp4); | |
| 1641 | |
| 1642 atom = &trak->minf_atom_buf; | |
| 1643 atom->temporary = 1; | |
| 1644 atom->pos = atom_header; | |
| 1645 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1646 | |
| 1647 trak->out[NGX_HTTP_MP4_MINF_ATOM].buf = atom; | |
| 1648 | |
| 1649 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_minf_atoms, atom_data_size); | |
| 1650 } | |
| 1651 | |
| 1652 | |
| 1653 static void | |
| 1654 ngx_http_mp4_update_minf_atom(ngx_http_mp4_file_t *mp4, | |
| 1655 ngx_http_mp4_trak_t *trak) | |
| 1656 { | |
| 1657 ngx_buf_t *atom; | |
| 1658 | |
| 1659 trak->size += sizeof(ngx_mp4_atom_header_t) | |
| 1660 + trak->vmhd_size | |
| 1661 + trak->smhd_size | |
| 1662 + trak->dinf_size; | |
| 1663 atom = &trak->minf_atom_buf; | |
| 1664 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1665 } | |
| 1666 | |
| 1667 | |
| 1668 static ngx_int_t | |
| 1669 ngx_http_mp4_read_vmhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1670 { | |
| 1671 u_char *atom_header; | |
| 1672 size_t atom_size; | |
| 1673 ngx_buf_t *atom; | |
| 1674 ngx_http_mp4_trak_t *trak; | |
| 1675 | |
| 1676 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 vmhd atom"); | |
| 1677 | |
| 1678 atom_header = ngx_mp4_atom_header(mp4); | |
| 1679 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1680 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1681 ngx_mp4_set_atom_name(atom_header, 'v', 'm', 'h', 'd'); | |
| 1682 | |
| 1683 trak = ngx_mp4_last_trak(mp4); | |
| 1684 | |
| 1685 atom = &trak->vmhd_atom_buf; | |
| 1686 atom->temporary = 1; | |
| 1687 atom->pos = atom_header; | |
| 1688 atom->last = atom_header + atom_size; | |
| 1689 | |
| 1690 trak->vmhd_size += atom_size; | |
| 1691 trak->out[NGX_HTTP_MP4_VMHD_ATOM].buf = atom; | |
| 1692 | |
| 1693 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1694 | |
| 1695 return NGX_OK; | |
| 1696 } | |
| 1697 | |
| 1698 | |
| 1699 static ngx_int_t | |
| 1700 ngx_http_mp4_read_smhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1701 { | |
| 1702 u_char *atom_header; | |
| 1703 size_t atom_size; | |
| 1704 ngx_buf_t *atom; | |
| 1705 ngx_http_mp4_trak_t *trak; | |
| 1706 | |
| 1707 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 smhd atom"); | |
| 1708 | |
| 1709 atom_header = ngx_mp4_atom_header(mp4); | |
| 1710 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1711 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1712 ngx_mp4_set_atom_name(atom_header, 's', 'm', 'h', 'd'); | |
| 1713 | |
| 1714 trak = ngx_mp4_last_trak(mp4); | |
| 1715 | |
| 1716 atom = &trak->smhd_atom_buf; | |
| 1717 atom->temporary = 1; | |
| 1718 atom->pos = atom_header; | |
| 1719 atom->last = atom_header + atom_size; | |
| 1720 | |
| 1721 trak->vmhd_size += atom_size; | |
| 1722 trak->out[NGX_HTTP_MP4_SMHD_ATOM].buf = atom; | |
| 1723 | |
| 1724 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1725 | |
| 1726 return NGX_OK; | |
| 1727 } | |
| 1728 | |
| 1729 | |
| 1730 static ngx_int_t | |
| 1731 ngx_http_mp4_read_dinf_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1732 { | |
| 1733 u_char *atom_header; | |
| 1734 size_t atom_size; | |
| 1735 ngx_buf_t *atom; | |
| 1736 ngx_http_mp4_trak_t *trak; | |
| 1737 | |
| 1738 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 dinf atom"); | |
| 1739 | |
| 1740 atom_header = ngx_mp4_atom_header(mp4); | |
| 1741 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1742 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1743 ngx_mp4_set_atom_name(atom_header, 'd', 'i', 'n', 'f'); | |
| 1744 | |
| 1745 trak = ngx_mp4_last_trak(mp4); | |
| 1746 | |
| 1747 atom = &trak->dinf_atom_buf; | |
| 1748 atom->temporary = 1; | |
| 1749 atom->pos = atom_header; | |
| 1750 atom->last = atom_header + atom_size; | |
| 1751 | |
| 1752 trak->dinf_size += atom_size; | |
| 1753 trak->out[NGX_HTTP_MP4_DINF_ATOM].buf = atom; | |
| 1754 | |
| 1755 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1756 | |
| 1757 return NGX_OK; | |
| 1758 } | |
| 1759 | |
| 1760 | |
| 1761 static ngx_int_t | |
| 1762 ngx_http_mp4_read_stbl_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1763 { | |
| 1764 u_char *atom_header; | |
| 1765 ngx_buf_t *atom; | |
| 1766 ngx_http_mp4_trak_t *trak; | |
| 1767 | |
| 1768 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process stbl atom"); | |
| 1769 | |
| 1770 atom_header = ngx_mp4_atom_header(mp4); | |
| 1771 ngx_mp4_set_atom_name(atom_header, 's', 't', 'b', 'l'); | |
| 1772 | |
| 1773 trak = ngx_mp4_last_trak(mp4); | |
| 1774 | |
| 1775 atom = &trak->stbl_atom_buf; | |
| 1776 atom->temporary = 1; | |
| 1777 atom->pos = atom_header; | |
| 1778 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1779 | |
| 1780 trak->out[NGX_HTTP_MP4_STBL_ATOM].buf = atom; | |
| 1781 | |
| 1782 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_stbl_atoms, atom_data_size); | |
| 1783 } | |
| 1784 | |
| 1785 | |
| 1786 static void | |
| 1787 ngx_http_mp4_update_stbl_atom(ngx_http_mp4_file_t *mp4, | |
| 1788 ngx_http_mp4_trak_t *trak) | |
| 1789 { | |
| 1790 ngx_buf_t *atom; | |
| 1791 | |
| 1792 trak->size += sizeof(ngx_mp4_atom_header_t); | |
| 1793 atom = &trak->stbl_atom_buf; | |
| 1794 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1795 } | |
| 1796 | |
| 1797 | |
| 1798 typedef struct { | |
| 1799 u_char size[4]; | |
| 1800 u_char name[4]; | |
| 1801 u_char version[1]; | |
| 1802 u_char flags[3]; | |
| 1803 u_char entries[4]; | |
|
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1804 |
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1805 u_char media_size[4]; |
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1806 u_char media_name[4]; |
| 4085 | 1807 } ngx_mp4_stsd_atom_t; |
| 1808 | |
| 1809 | |
| 1810 static ngx_int_t | |
| 1811 ngx_http_mp4_read_stsd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1812 { | |
| 1813 u_char *atom_header, *atom_table; | |
| 1814 size_t atom_size; | |
| 1815 ngx_buf_t *atom; | |
| 1816 ngx_mp4_stsd_atom_t *stsd_atom; | |
| 1817 ngx_http_mp4_trak_t *trak; | |
| 1818 | |
| 1819 /* sample description atom */ | |
| 1820 | |
| 1821 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsd atom"); | |
| 1822 | |
| 1823 atom_header = ngx_mp4_atom_header(mp4); | |
| 1824 stsd_atom = (ngx_mp4_stsd_atom_t *) atom_header; | |
| 1825 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1826 atom_table = atom_header + atom_size; | |
| 1827 ngx_mp4_set_32value(stsd_atom->size, atom_size); | |
| 1828 ngx_mp4_set_atom_name(stsd_atom, 's', 't', 's', 'd'); | |
| 1829 | |
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1830 if (ngx_mp4_atom_data_size(ngx_mp4_stsd_atom_t) > atom_data_size) { |
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1831 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1832 "\"%s\" mp4 stsd atom too small", mp4->file.name.data); |
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1833 return NGX_ERROR; |
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1834 } |
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1835 |
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1836 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
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1837 "stsd entries:%uD, media:%*s", |
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1838 ngx_mp4_get_32value(stsd_atom->entries), |
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1839 4, stsd_atom->media_name); |
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1840 |
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1841 /* supported media format: "avc1" (H.264) and "mp4a" (MPEG-4/AAC) */ |
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1842 |
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1843 if (ngx_strncmp(stsd_atom->media_name, "avc1", 4) != 0 |
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1844 && ngx_strncmp(stsd_atom->media_name, "mp4a", 4) != 0) |
| 4085 | 1845 { |
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1846 return NGX_DECLINED; |
| 4085 | 1847 } |
| 1848 | |
| 1849 trak = ngx_mp4_last_trak(mp4); | |
| 1850 | |
| 1851 atom = &trak->stsd_atom_buf; | |
| 1852 atom->temporary = 1; | |
| 1853 atom->pos = atom_header; | |
| 1854 atom->last = atom_table; | |
| 1855 | |
| 1856 trak->out[NGX_HTTP_MP4_STSD_ATOM].buf = atom; | |
| 1857 trak->size += atom_size; | |
| 1858 | |
| 1859 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1860 | |
| 1861 return NGX_OK; | |
| 1862 } | |
| 1863 | |
| 1864 | |
| 1865 typedef struct { | |
| 1866 u_char size[4]; | |
| 1867 u_char name[4]; | |
| 1868 u_char version[1]; | |
| 1869 u_char flags[3]; | |
| 1870 u_char entries[4]; | |
| 1871 } ngx_mp4_stts_atom_t; | |
| 1872 | |
| 1873 typedef struct { | |
| 1874 u_char count[4]; | |
| 1875 u_char duration[4]; | |
| 1876 } ngx_mp4_stts_entry_t; | |
| 1877 | |
| 1878 | |
| 1879 static ngx_int_t | |
| 1880 ngx_http_mp4_read_stts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1881 { | |
| 1882 u_char *atom_header, *atom_table, *atom_end; | |
| 1883 uint32_t entries; | |
| 1884 ngx_buf_t *atom, *data; | |
| 1885 ngx_mp4_stts_atom_t *stts_atom; | |
| 1886 ngx_http_mp4_trak_t *trak; | |
| 1887 | |
| 1888 /* time-to-sample atom */ | |
| 1889 | |
| 1890 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stts atom"); | |
| 1891 | |
| 1892 atom_header = ngx_mp4_atom_header(mp4); | |
| 1893 stts_atom = (ngx_mp4_stts_atom_t *) atom_header; | |
| 1894 ngx_mp4_set_atom_name(stts_atom, 's', 't', 't', 's'); | |
| 1895 | |
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1896 if (ngx_mp4_atom_data_size(ngx_mp4_stts_atom_t) > atom_data_size) { |
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1897 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1898 "\"%s\" mp4 stts atom too small", mp4->file.name.data); |
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1899 return NGX_ERROR; |
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1900 } |
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1901 |
| 4085 | 1902 entries = ngx_mp4_get_32value(stts_atom->entries); |
| 1903 | |
| 1904 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 1905 "mp4 time-to-sample entries:%uD", entries); |
| 4085 | 1906 |
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1907 if (ngx_mp4_atom_data_size(ngx_mp4_stts_atom_t) |
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1908 + entries * sizeof(ngx_mp4_stts_entry_t) > atom_data_size) |
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1909 { |
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1910 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1911 "\"%s\" mp4 stts atom too small", mp4->file.name.data); |
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1912 return NGX_ERROR; |
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1913 } |
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1914 |
| 4085 | 1915 atom_table = atom_header + sizeof(ngx_mp4_stts_atom_t); |
| 1916 atom_end = atom_table + entries * sizeof(ngx_mp4_stts_entry_t); | |
| 1917 | |
| 1918 trak = ngx_mp4_last_trak(mp4); | |
| 1919 trak->time_to_sample_entries = entries; | |
| 1920 | |
| 1921 atom = &trak->stts_atom_buf; | |
| 1922 atom->temporary = 1; | |
| 1923 atom->pos = atom_header; | |
| 1924 atom->last = atom_table; | |
| 1925 | |
| 1926 data = &trak->stts_data_buf; | |
| 1927 data->temporary = 1; | |
| 1928 data->pos = atom_table; | |
| 1929 data->last = atom_end; | |
| 1930 | |
| 1931 trak->out[NGX_HTTP_MP4_STTS_ATOM].buf = atom; | |
| 1932 trak->out[NGX_HTTP_MP4_STTS_DATA].buf = data; | |
| 1933 | |
| 1934 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1935 | |
| 1936 return NGX_OK; | |
| 1937 } | |
| 1938 | |
| 1939 | |
| 1940 static ngx_int_t | |
| 1941 ngx_http_mp4_update_stts_atom(ngx_http_mp4_file_t *mp4, | |
| 1942 ngx_http_mp4_trak_t *trak) | |
| 1943 { | |
| 1944 size_t atom_size; | |
| 1945 uint32_t entries, count, duration; | |
| 1946 uint64_t start_time; | |
| 1947 ngx_buf_t *atom, *data; | |
| 1948 ngx_uint_t start_sample; | |
| 1949 ngx_mp4_stts_atom_t *stts_atom; | |
| 1950 ngx_mp4_stts_entry_t *entry, *end; | |
| 1951 | |
| 1952 /* | |
| 1953 * mdia.minf.stbl.stts updating requires trak->timescale | |
| 1954 * from mdia.mdhd atom which may reside after mdia.minf | |
| 1955 */ | |
| 1956 | |
| 1957 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1958 "mp4 stts atom update"); | |
| 1959 | |
| 1960 data = trak->out[NGX_HTTP_MP4_STTS_DATA].buf; | |
| 1961 | |
| 1962 if (data == NULL) { | |
| 1963 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 1964 "no mp4 stts atoms were found in \"%s\"", | |
| 1965 mp4->file.name.data); | |
| 1966 return NGX_ERROR; | |
| 1967 } | |
| 1968 | |
| 1969 entries = trak->time_to_sample_entries; | |
|
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1970 start_time = (uint64_t) mp4->start * trak->timescale / 1000; |
| 4085 | 1971 |
| 1972 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 1973 "time-to-sample start_time:%uL", start_time); |
| 4085 | 1974 |
| 1975 start_sample = 0; | |
| 1976 entry = (ngx_mp4_stts_entry_t *) data->pos; | |
| 1977 end = (ngx_mp4_stts_entry_t *) data->last; | |
| 1978 | |
| 1979 while (entry < end) { | |
| 1980 count = ngx_mp4_get_32value(entry->count); | |
| 1981 duration = ngx_mp4_get_32value(entry->duration); | |
| 1982 | |
| 1983 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1984 "count:%uD, duration:%uD", count, duration); | |
| 1985 | |
| 4306 | 1986 if (start_time < (uint64_t) count * duration) { |
| 4085 | 1987 start_sample += (ngx_uint_t) (start_time / duration); |
| 4578 | 1988 count -= (uint32_t) (start_time / duration); |
| 4085 | 1989 ngx_mp4_set_32value(entry->count, count); |
| 1990 goto found; | |
| 1991 } | |
| 1992 | |
| 1993 start_sample += count; | |
| 1994 start_time -= count * duration; | |
| 1995 entries--; | |
| 1996 entry++; | |
| 1997 } | |
| 1998 | |
| 1999 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 4094 | 2000 "start time is out mp4 stts samples in \"%s\"", |
| 4085 | 2001 mp4->file.name.data); |
| 2002 | |
| 2003 return NGX_ERROR; | |
| 2004 | |
| 2005 found: | |
| 2006 | |
| 2007 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2008 "start_sample:%ui, new count:%uD", start_sample, count); | |
| 2009 | |
| 2010 trak->start_sample = start_sample; | |
| 2011 | |
| 2012 data->pos = (u_char *) entry; | |
| 2013 atom_size = sizeof(ngx_mp4_stts_atom_t) + (data->last - data->pos); | |
| 2014 trak->size += atom_size; | |
| 2015 | |
| 2016 atom = trak->out[NGX_HTTP_MP4_STTS_ATOM].buf; | |
| 2017 stts_atom = (ngx_mp4_stts_atom_t *) atom->pos; | |
| 2018 ngx_mp4_set_32value(stts_atom->size, atom_size); | |
| 2019 ngx_mp4_set_32value(stts_atom->entries, entries); | |
| 2020 | |
| 2021 return NGX_OK; | |
| 2022 } | |
| 2023 | |
| 2024 | |
| 2025 typedef struct { | |
| 2026 u_char size[4]; | |
| 2027 u_char name[4]; | |
| 2028 u_char version[1]; | |
| 2029 u_char flags[3]; | |
| 2030 u_char entries[4]; | |
| 2031 } ngx_http_mp4_stss_atom_t; | |
| 2032 | |
| 2033 | |
| 2034 static ngx_int_t | |
| 2035 ngx_http_mp4_read_stss_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2036 { | |
| 2037 u_char *atom_header, *atom_table, *atom_end; | |
| 2038 uint32_t entries; | |
| 2039 ngx_buf_t *atom, *data; | |
| 2040 ngx_http_mp4_trak_t *trak; | |
| 2041 ngx_http_mp4_stss_atom_t *stss_atom; | |
| 2042 | |
| 2043 /* sync samples atom */ | |
| 2044 | |
| 2045 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stss atom"); | |
| 2046 | |
| 2047 atom_header = ngx_mp4_atom_header(mp4); | |
| 2048 stss_atom = (ngx_http_mp4_stss_atom_t *) atom_header; | |
| 2049 ngx_mp4_set_atom_name(stss_atom, 's', 't', 's', 's'); | |
| 2050 | |
|
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4579
diff
changeset
|
2051 if (ngx_mp4_atom_data_size(ngx_http_mp4_stss_atom_t) > atom_data_size) { |
|
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|
2052 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
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|
2053 "\"%s\" mp4 stss atom too small", mp4->file.name.data); |
|
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|
2054 return NGX_ERROR; |
|
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Mp4: sanity checks cleanup.
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|
2055 } |
|
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|
2056 |
| 4085 | 2057 entries = ngx_mp4_get_32value(stss_atom->entries); |
| 2058 | |
| 2059 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 2060 "sync sample entries:%uD", entries); |
| 4085 | 2061 |
| 2062 trak = ngx_mp4_last_trak(mp4); | |
| 2063 trak->sync_samples_entries = entries; | |
| 2064 | |
| 2065 atom_table = atom_header + sizeof(ngx_http_mp4_stss_atom_t); | |
| 2066 | |
| 2067 atom = &trak->stss_atom_buf; | |
| 2068 atom->temporary = 1; | |
| 2069 atom->pos = atom_header; | |
| 2070 atom->last = atom_table; | |
| 2071 | |
|
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diff
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|
2072 if (ngx_mp4_atom_data_size(ngx_http_mp4_stss_atom_t) |
|
3f874d645f45
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4579
diff
changeset
|
2073 + entries * sizeof(uint32_t) > atom_data_size) |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2074 { |
| 4085 | 2075 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
4585
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parents:
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diff
changeset
|
2076 "\"%s\" mp4 stss atom too small", mp4->file.name.data); |
| 4085 | 2077 return NGX_ERROR; |
| 2078 } | |
| 2079 | |
|
4585
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diff
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|
2080 atom_end = atom_table + entries * sizeof(uint32_t); |
|
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|
2081 |
| 4085 | 2082 data = &trak->stss_data_buf; |
| 2083 data->temporary = 1; | |
| 2084 data->pos = atom_table; | |
| 2085 data->last = atom_end; | |
| 2086 | |
| 2087 trak->out[NGX_HTTP_MP4_STSS_ATOM].buf = atom; | |
| 2088 trak->out[NGX_HTTP_MP4_STSS_DATA].buf = data; | |
| 2089 | |
| 2090 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2091 | |
| 2092 return NGX_OK; | |
| 2093 } | |
| 2094 | |
| 2095 | |
| 2096 static ngx_int_t | |
| 2097 ngx_http_mp4_update_stss_atom(ngx_http_mp4_file_t *mp4, | |
| 2098 ngx_http_mp4_trak_t *trak) | |
| 2099 { | |
| 2100 size_t atom_size; | |
| 2101 uint32_t entries, sample, start_sample, *entry, *end; | |
| 2102 ngx_buf_t *atom, *data; | |
| 2103 ngx_http_mp4_stss_atom_t *stss_atom; | |
| 2104 | |
| 2105 /* | |
| 2106 * mdia.minf.stbl.stss updating requires trak->start_sample | |
| 2107 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2108 * atom which may reside after mdia.minf | |
| 2109 */ | |
| 2110 | |
| 2111 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2112 "mp4 stss atom update"); | |
| 2113 | |
| 2114 data = trak->out[NGX_HTTP_MP4_STSS_DATA].buf; | |
| 2115 | |
| 2116 if (data == NULL) { | |
| 2117 return NGX_OK; | |
| 2118 } | |
| 2119 | |
| 2120 /* sync samples starts from 1 */ | |
| 2121 start_sample = trak->start_sample + 1; | |
| 2122 entries = trak->sync_samples_entries; | |
| 2123 | |
| 2124 entry = (uint32_t *) data->pos; | |
| 2125 end = (uint32_t *) data->last; | |
| 2126 | |
| 2127 while (entry < end) { | |
| 2128 sample = ngx_mp4_get_32value(entry); | |
| 2129 | |
| 2130 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2131 "start:%uD, sync:%uD", start_sample, sample); | |
| 2132 | |
| 2133 if (sample >= start_sample) { | |
| 2134 goto found; | |
| 2135 } | |
| 2136 | |
| 2137 entries--; | |
| 2138 entry++; | |
| 2139 } | |
| 2140 | |
| 2141 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2142 "start sample is out of mp4 stss atom in \"%s\"", | |
| 2143 mp4->file.name.data); | |
| 2144 | |
| 2145 return NGX_ERROR; | |
| 2146 | |
| 2147 found: | |
| 2148 | |
| 2149 data->pos = (u_char *) entry; | |
| 2150 | |
| 2151 start_sample = trak->start_sample; | |
| 2152 | |
| 2153 while (entry < end) { | |
| 2154 sample = ngx_mp4_get_32value(entry); | |
| 2155 sample -= start_sample; | |
| 2156 ngx_mp4_set_32value(entry, sample); | |
| 2157 entry++; | |
| 2158 } | |
| 2159 | |
| 2160 atom_size = sizeof(ngx_http_mp4_stss_atom_t) + (data->last - data->pos); | |
| 2161 trak->size += atom_size; | |
| 2162 | |
| 2163 atom = trak->out[NGX_HTTP_MP4_STSS_ATOM].buf; | |
| 2164 stss_atom = (ngx_http_mp4_stss_atom_t *) atom->pos; | |
| 2165 | |
| 2166 ngx_mp4_set_32value(stss_atom->size, atom_size); | |
| 2167 ngx_mp4_set_32value(stss_atom->entries, entries); | |
| 2168 | |
| 2169 return NGX_OK; | |
| 2170 } | |
| 2171 | |
| 2172 | |
| 2173 typedef struct { | |
| 2174 u_char size[4]; | |
| 2175 u_char name[4]; | |
| 2176 u_char version[1]; | |
| 2177 u_char flags[3]; | |
| 2178 u_char entries[4]; | |
| 2179 } ngx_mp4_ctts_atom_t; | |
| 2180 | |
| 2181 typedef struct { | |
| 2182 u_char count[4]; | |
| 2183 u_char offset[4]; | |
| 2184 } ngx_mp4_ctts_entry_t; | |
| 2185 | |
| 2186 | |
| 2187 static ngx_int_t | |
| 2188 ngx_http_mp4_read_ctts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2189 { | |
| 2190 u_char *atom_header, *atom_table, *atom_end; | |
| 2191 uint32_t entries; | |
| 2192 ngx_buf_t *atom, *data; | |
| 2193 ngx_mp4_ctts_atom_t *ctts_atom; | |
| 2194 ngx_http_mp4_trak_t *trak; | |
| 2195 | |
| 2196 /* composition offsets atom */ | |
| 2197 | |
| 2198 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 ctts atom"); | |
| 2199 | |
| 2200 atom_header = ngx_mp4_atom_header(mp4); | |
| 2201 ctts_atom = (ngx_mp4_ctts_atom_t *) atom_header; | |
| 2202 ngx_mp4_set_atom_name(ctts_atom, 'c', 't', 't', 's'); | |
| 2203 | |
|
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parents:
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diff
changeset
|
2204 if (ngx_mp4_atom_data_size(ngx_mp4_ctts_atom_t) > atom_data_size) { |
|
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diff
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|
2205 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
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parents:
4579
diff
changeset
|
2206 "\"%s\" mp4 ctts atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
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diff
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|
2207 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
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diff
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|
2208 } |
|
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diff
changeset
|
2209 |
| 4085 | 2210 entries = ngx_mp4_get_32value(ctts_atom->entries); |
| 2211 | |
| 2212 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 2213 "composition offset entries:%uD", entries); |
| 4085 | 2214 |
| 2215 trak = ngx_mp4_last_trak(mp4); | |
| 2216 trak->composition_offset_entries = entries; | |
| 2217 | |
| 2218 atom_table = atom_header + sizeof(ngx_mp4_ctts_atom_t); | |
| 2219 | |
| 2220 atom = &trak->ctts_atom_buf; | |
| 2221 atom->temporary = 1; | |
| 2222 atom->pos = atom_header; | |
| 2223 atom->last = atom_table; | |
| 2224 | |
|
4585
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parents:
4579
diff
changeset
|
2225 if (ngx_mp4_atom_data_size(ngx_mp4_ctts_atom_t) |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2226 + entries * sizeof(ngx_mp4_ctts_entry_t) > atom_data_size) |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2227 { |
| 4085 | 2228 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2229 "\"%s\" mp4 ctts atom too small", mp4->file.name.data); |
| 4085 | 2230 return NGX_ERROR; |
| 2231 } | |
| 2232 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2233 atom_end = atom_table + entries * sizeof(ngx_mp4_ctts_entry_t); |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2234 |
| 4085 | 2235 data = &trak->ctts_data_buf; |
| 2236 data->temporary = 1; | |
| 2237 data->pos = atom_table; | |
| 2238 data->last = atom_end; | |
| 2239 | |
| 2240 trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf = atom; | |
| 2241 trak->out[NGX_HTTP_MP4_CTTS_DATA].buf = data; | |
| 2242 | |
| 2243 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2244 | |
| 2245 return NGX_OK; | |
| 2246 } | |
| 2247 | |
| 2248 | |
| 2249 static void | |
| 2250 ngx_http_mp4_update_ctts_atom(ngx_http_mp4_file_t *mp4, | |
| 2251 ngx_http_mp4_trak_t *trak) | |
| 2252 { | |
| 2253 size_t atom_size; | |
| 2254 uint32_t entries, count, start_sample; | |
| 2255 ngx_buf_t *atom, *data; | |
| 2256 ngx_mp4_ctts_atom_t *ctts_atom; | |
| 2257 ngx_mp4_ctts_entry_t *entry, *end; | |
| 2258 | |
| 2259 /* | |
| 2260 * mdia.minf.stbl.ctts updating requires trak->start_sample | |
| 2261 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2262 * atom which may reside after mdia.minf | |
| 2263 */ | |
| 2264 | |
| 2265 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2266 "mp4 ctts atom update"); | |
| 2267 | |
| 2268 data = trak->out[NGX_HTTP_MP4_CTTS_DATA].buf; | |
| 2269 | |
| 2270 if (data == NULL) { | |
| 2271 return; | |
| 2272 } | |
| 2273 | |
| 2274 /* sync samples starts from 1 */ | |
| 2275 start_sample = trak->start_sample + 1; | |
| 2276 entries = trak->composition_offset_entries; | |
| 2277 entry = (ngx_mp4_ctts_entry_t *) data->pos; | |
| 2278 end = (ngx_mp4_ctts_entry_t *) data->last; | |
| 2279 | |
| 2280 while (entry < end) { | |
| 2281 count = ngx_mp4_get_32value(entry->count); | |
| 2282 | |
|
4088
8fe1da7b8386
bugfix of r4086: nginx could not be built without debug log.
Igor Sysoev <igor@sysoev.ru>
parents:
4087
diff
changeset
|
2283 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 2284 "start:%uD, count:%uD, offset:%uD", |
| 2285 start_sample, count, ngx_mp4_get_32value(entry->offset)); | |
| 2286 | |
| 2287 if (start_sample <= count) { | |
| 2288 count -= (start_sample - 1); | |
| 2289 ngx_mp4_set_32value(entry->count, count); | |
| 2290 goto found; | |
| 2291 } | |
| 2292 | |
| 2293 start_sample -= count; | |
| 2294 entries--; | |
| 2295 entry++; | |
| 2296 } | |
| 2297 | |
| 2298 trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf = NULL; | |
| 2299 trak->out[NGX_HTTP_MP4_CTTS_DATA].buf = NULL; | |
| 2300 | |
| 2301 return; | |
| 2302 | |
| 2303 found: | |
| 2304 | |
| 2305 data->pos = (u_char *) entry; | |
| 2306 atom_size = sizeof(ngx_mp4_ctts_atom_t) + (data->last - data->pos); | |
| 2307 trak->size += atom_size; | |
| 2308 | |
| 2309 atom = trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf; | |
| 2310 ctts_atom = (ngx_mp4_ctts_atom_t *) atom->pos; | |
| 2311 | |
| 2312 ngx_mp4_set_32value(ctts_atom->size, atom_size); | |
| 2313 ngx_mp4_set_32value(ctts_atom->entries, entries); | |
| 2314 | |
| 2315 return; | |
| 2316 } | |
| 2317 | |
| 2318 | |
| 2319 typedef struct { | |
| 2320 u_char size[4]; | |
| 2321 u_char name[4]; | |
| 2322 u_char version[1]; | |
| 2323 u_char flags[3]; | |
| 2324 u_char entries[4]; | |
| 2325 } ngx_mp4_stsc_atom_t; | |
| 2326 | |
| 2327 | |
| 2328 static ngx_int_t | |
| 2329 ngx_http_mp4_read_stsc_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2330 { | |
| 2331 u_char *atom_header, *atom_table, *atom_end; | |
| 2332 uint32_t entries; | |
| 2333 ngx_buf_t *atom, *data; | |
| 2334 ngx_mp4_stsc_atom_t *stsc_atom; | |
| 2335 ngx_http_mp4_trak_t *trak; | |
| 2336 | |
| 2337 /* sample-to-chunk atom */ | |
| 2338 | |
| 2339 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsc atom"); | |
| 2340 | |
| 2341 atom_header = ngx_mp4_atom_header(mp4); | |
| 2342 stsc_atom = (ngx_mp4_stsc_atom_t *) atom_header; | |
| 2343 ngx_mp4_set_atom_name(stsc_atom, 's', 't', 's', 'c'); | |
| 2344 | |
|
4585
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diff
changeset
|
2345 if (ngx_mp4_atom_data_size(ngx_mp4_stsc_atom_t) > atom_data_size) { |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
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diff
changeset
|
2346 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2347 "\"%s\" mp4 stsc atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
2348 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2349 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2350 |
| 4085 | 2351 entries = ngx_mp4_get_32value(stsc_atom->entries); |
| 2352 | |
| 2353 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 2354 "sample-to-chunk entries:%uD", entries); |
| 4085 | 2355 |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2356 if (ngx_mp4_atom_data_size(ngx_mp4_stsc_atom_t) |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2357 + entries * sizeof(ngx_mp4_stsc_entry_t) > atom_data_size) |
|
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2358 { |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2359 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2360 "\"%s\" mp4 stsc atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2361 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2362 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2363 |
| 4085 | 2364 atom_table = atom_header + sizeof(ngx_mp4_stsc_atom_t); |
| 2365 atom_end = atom_table + entries * sizeof(ngx_mp4_stsc_entry_t); | |
| 2366 | |
| 2367 trak = ngx_mp4_last_trak(mp4); | |
| 2368 trak->sample_to_chunk_entries = entries; | |
| 2369 | |
| 2370 atom = &trak->stsc_atom_buf; | |
| 2371 atom->temporary = 1; | |
| 2372 atom->pos = atom_header; | |
| 2373 atom->last = atom_table; | |
| 2374 | |
| 2375 data = &trak->stsc_data_buf; | |
| 2376 data->temporary = 1; | |
| 2377 data->pos = atom_table; | |
| 2378 data->last = atom_end; | |
| 2379 | |
| 2380 trak->out[NGX_HTTP_MP4_STSC_ATOM].buf = atom; | |
| 2381 trak->out[NGX_HTTP_MP4_STSC_DATA].buf = data; | |
| 2382 | |
| 2383 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2384 | |
| 2385 return NGX_OK; | |
| 2386 } | |
| 2387 | |
| 2388 | |
| 2389 static ngx_int_t | |
| 2390 ngx_http_mp4_update_stsc_atom(ngx_http_mp4_file_t *mp4, | |
| 2391 ngx_http_mp4_trak_t *trak) | |
| 2392 { | |
| 2393 size_t atom_size; | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2394 uint32_t start_sample, entries, chunk, samples, id, |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2395 next_chunk, n; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2396 ngx_buf_t *atom, *data, *buf; |
| 4085 | 2397 ngx_mp4_stsc_atom_t *stsc_atom; |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2398 ngx_mp4_stsc_entry_t *entry, *first, *end; |
| 4085 | 2399 |
| 2400 /* | |
| 2401 * mdia.minf.stbl.stsc updating requires trak->start_sample | |
| 2402 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2403 * atom which may reside after mdia.minf | |
| 2404 */ | |
| 2405 | |
| 2406 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2407 "mp4 stsc atom update"); | |
| 2408 | |
| 2409 data = trak->out[NGX_HTTP_MP4_STSC_DATA].buf; | |
| 2410 | |
| 2411 if (data == NULL) { | |
| 2412 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2413 "no mp4 stsc atoms were found in \"%s\"", | |
| 2414 mp4->file.name.data); | |
| 2415 return NGX_ERROR; | |
| 2416 } | |
| 2417 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2418 if (trak->sample_to_chunk_entries == 0) { |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2419 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2420 "zero number of entries in stsc atom in \"%s\"", |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2421 mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2422 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2423 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2424 |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2425 start_sample = (uint32_t) trak->start_sample; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2426 entries = trak->sample_to_chunk_entries - 1; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2427 |
| 4085 | 2428 entry = (ngx_mp4_stsc_entry_t *) data->pos; |
| 2429 end = (ngx_mp4_stsc_entry_t *) data->last; | |
| 2430 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2431 chunk = ngx_mp4_get_32value(entry->chunk); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2432 samples = ngx_mp4_get_32value(entry->samples); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2433 id = ngx_mp4_get_32value(entry->id); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2434 entry++; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2435 |
| 4085 | 2436 while (entry < end) { |
| 2437 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2438 next_chunk = ngx_mp4_get_32value(entry->chunk); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2439 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2440 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2441 "start_sample:%uD, chunk:%uD, chunks:%uD, " |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2442 "samples:%uD, id:%uD", |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2443 start_sample, chunk, next_chunk - chunk, samples, id); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2444 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2445 n = (next_chunk - chunk) * samples; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2446 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2447 if (start_sample <= n) { |
| 4085 | 2448 goto found; |
| 2449 } | |
| 2450 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2451 start_sample -= n; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2452 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2453 chunk = next_chunk; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2454 samples = ngx_mp4_get_32value(entry->samples); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2455 id = ngx_mp4_get_32value(entry->id); |
| 4085 | 2456 entries--; |
| 2457 entry++; | |
| 2458 } | |
| 2459 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2460 next_chunk = trak->chunks; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2461 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2462 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2463 "start_sample:%uD, chunk:%uD, chunks:%uD, samples:%uD", |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2464 start_sample, chunk, next_chunk - chunk, samples); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2465 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2466 n = (next_chunk - chunk) * samples; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2467 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2468 if (start_sample > n) { |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2469 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2470 "start time is out mp4 stsc chunks in \"%s\"", |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2471 mp4->file.name.data); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2472 return NGX_ERROR; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2473 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2474 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2475 found: |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2476 |
| 4085 | 2477 entries++; |
| 2478 entry--; | |
| 2479 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2480 if (samples == 0) { |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2481 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2482 "zero number of samples in \"%s\"", |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2483 mp4->file.name.data); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2484 return NGX_ERROR; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2485 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2486 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2487 trak->start_chunk = chunk - 1; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2488 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2489 trak->start_chunk += start_sample / samples; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2490 trak->chunk_samples = start_sample % samples; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2491 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2492 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2493 "start chunk:%ui, samples:%uD", |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2494 trak->start_chunk, trak->chunk_samples); |
| 4085 | 2495 |
| 2496 data->pos = (u_char *) entry; | |
| 2497 atom_size = sizeof(ngx_mp4_stsc_atom_t) + (data->last - data->pos); | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2498 |
|
4382
b4d54fa76853
Fixed mp4 if first entry in stsc was skipped (ticket #72).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4306
diff
changeset
|
2499 ngx_mp4_set_32value(entry->chunk, 1); |
|
b4d54fa76853
Fixed mp4 if first entry in stsc was skipped (ticket #72).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4306
diff
changeset
|
2500 |
|
4687
7f50a4063100
Mp4: fixed non-keyframe seeks in some cases (ticket #175).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
2501 if (trak->chunk_samples && next_chunk - trak->start_chunk == 2) { |
|
7f50a4063100
Mp4: fixed non-keyframe seeks in some cases (ticket #175).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
2502 |
|
7f50a4063100
Mp4: fixed non-keyframe seeks in some cases (ticket #175).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
2503 /* last chunk in the entry */ |
|
7f50a4063100
Mp4: fixed non-keyframe seeks in some cases (ticket #175).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
2504 |
|
7f50a4063100
Mp4: fixed non-keyframe seeks in some cases (ticket #175).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
2505 ngx_mp4_set_32value(entry->samples, samples - trak->chunk_samples); |
|
7f50a4063100
Mp4: fixed non-keyframe seeks in some cases (ticket #175).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
2506 |
|
7f50a4063100
Mp4: fixed non-keyframe seeks in some cases (ticket #175).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
2507 } else if (trak->chunk_samples) { |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2508 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2509 first = &trak->stsc_chunk_entry; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2510 ngx_mp4_set_32value(first->chunk, 1); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2511 ngx_mp4_set_32value(first->samples, samples - trak->chunk_samples); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2512 ngx_mp4_set_32value(first->id, id); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2513 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2514 buf = &trak->stsc_chunk_buf; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2515 buf->temporary = 1; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2516 buf->pos = (u_char *) first; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2517 buf->last = (u_char *) first + sizeof(ngx_mp4_stsc_entry_t); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2518 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2519 trak->out[NGX_HTTP_MP4_STSC_CHUNK].buf = buf; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2520 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2521 ngx_mp4_set_32value(entry->chunk, 2); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2522 |
|
4687
7f50a4063100
Mp4: fixed non-keyframe seeks in some cases (ticket #175).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
2523 entries++; |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2524 atom_size += sizeof(ngx_mp4_stsc_entry_t); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2525 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
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parents:
4096
diff
changeset
|
2526 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2527 while (++entry < end) { |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2528 chunk = ngx_mp4_get_32value(entry->chunk); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2529 chunk -= trak->start_chunk; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2530 ngx_mp4_set_32value(entry->chunk, chunk); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2531 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
2532 |
| 4085 | 2533 trak->size += atom_size; |
| 2534 | |
| 2535 atom = trak->out[NGX_HTTP_MP4_STSC_ATOM].buf; | |
| 2536 stsc_atom = (ngx_mp4_stsc_atom_t *) atom->pos; | |
| 2537 | |
| 2538 ngx_mp4_set_32value(stsc_atom->size, atom_size); | |
| 2539 ngx_mp4_set_32value(stsc_atom->entries, entries); | |
| 2540 | |
| 2541 return NGX_OK; | |
| 2542 } | |
| 2543 | |
| 2544 | |
| 2545 typedef struct { | |
| 2546 u_char size[4]; | |
| 2547 u_char name[4]; | |
| 2548 u_char version[1]; | |
| 2549 u_char flags[3]; | |
| 2550 u_char uniform_size[4]; | |
| 2551 u_char entries[4]; | |
| 2552 } ngx_mp4_stsz_atom_t; | |
| 2553 | |
| 2554 | |
| 2555 static ngx_int_t | |
| 2556 ngx_http_mp4_read_stsz_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2557 { | |
| 2558 u_char *atom_header, *atom_table, *atom_end; | |
| 2559 size_t atom_size; | |
| 2560 uint32_t entries, size; | |
| 2561 ngx_buf_t *atom, *data; | |
| 2562 ngx_mp4_stsz_atom_t *stsz_atom; | |
| 2563 ngx_http_mp4_trak_t *trak; | |
| 2564 | |
| 2565 /* sample sizes atom */ | |
| 2566 | |
| 2567 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsz atom"); | |
| 2568 | |
| 2569 atom_header = ngx_mp4_atom_header(mp4); | |
| 2570 stsz_atom = (ngx_mp4_stsz_atom_t *) atom_header; | |
| 2571 ngx_mp4_set_atom_name(stsz_atom, 's', 't', 's', 'z'); | |
| 2572 | |
|
4585
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
2573 if (ngx_mp4_atom_data_size(ngx_mp4_stsz_atom_t) > atom_data_size) { |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
2574 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2575 "\"%s\" mp4 stsz atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2576 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
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|
2577 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2578 |
| 4085 | 2579 size = ngx_mp4_get_32value(stsz_atom->uniform_size); |
| 2580 entries = ngx_mp4_get_32value(stsz_atom->entries); | |
| 2581 | |
| 2582 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2583 "sample uniform size:%uD, entries:%uD", size, entries); | |
| 2584 | |
| 2585 trak = ngx_mp4_last_trak(mp4); | |
| 2586 trak->sample_sizes_entries = entries; | |
| 2587 | |
| 2588 atom_table = atom_header + sizeof(ngx_mp4_stsz_atom_t); | |
| 2589 | |
| 2590 atom = &trak->stsz_atom_buf; | |
| 2591 atom->temporary = 1; | |
| 2592 atom->pos = atom_header; | |
| 2593 atom->last = atom_table; | |
| 2594 | |
| 2595 trak->out[NGX_HTTP_MP4_STSZ_ATOM].buf = atom; | |
| 2596 | |
| 2597 if (size == 0) { | |
|
4585
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2598 if (ngx_mp4_atom_data_size(ngx_mp4_stsz_atom_t) |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2599 + entries * sizeof(uint32_t) > atom_data_size) |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2600 { |
| 4085 | 2601 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2602 "\"%s\" mp4 stsz atom too small", |
| 4085 | 2603 mp4->file.name.data); |
| 2604 return NGX_ERROR; | |
| 2605 } | |
| 2606 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
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|
2607 atom_end = atom_table + entries * sizeof(uint32_t); |
|
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2608 |
| 4085 | 2609 data = &trak->stsz_data_buf; |
| 2610 data->temporary = 1; | |
| 2611 data->pos = atom_table; | |
| 2612 data->last = atom_end; | |
| 2613 | |
| 2614 trak->out[NGX_HTTP_MP4_STSZ_DATA].buf = data; | |
| 2615 | |
| 2616 } else { | |
| 2617 /* if size != 0 then all samples are the same size */ | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2618 /* TODO : chunk samples */ |
| 4085 | 2619 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; |
| 2620 ngx_mp4_set_32value(atom_header, atom_size); | |
| 2621 trak->size += atom_size; | |
| 2622 } | |
| 2623 | |
| 2624 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2625 | |
| 2626 return NGX_OK; | |
| 2627 } | |
| 2628 | |
| 2629 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2630 static ngx_int_t |
| 4085 | 2631 ngx_http_mp4_update_stsz_atom(ngx_http_mp4_file_t *mp4, |
| 2632 ngx_http_mp4_trak_t *trak) | |
| 2633 { | |
| 2634 size_t atom_size; | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2635 uint32_t *pos, *end; |
| 4085 | 2636 ngx_buf_t *atom, *data; |
| 2637 ngx_mp4_stsz_atom_t *stsz_atom; | |
| 2638 | |
| 2639 /* | |
| 2640 * mdia.minf.stbl.stsz updating requires trak->start_sample | |
| 2641 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2642 * atom which may reside after mdia.minf | |
| 2643 */ | |
| 2644 | |
| 2645 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2646 "mp4 stsz atom update"); | |
| 2647 | |
| 2648 data = trak->out[NGX_HTTP_MP4_STSZ_DATA].buf; | |
| 2649 | |
| 2650 if (data) { | |
|
4585
3f874d645f45
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diff
changeset
|
2651 if (trak->start_sample > trak->sample_sizes_entries) { |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2652 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2653 "start time is out mp4 stsz samples in \"%s\"", |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
2654 mp4->file.name.data); |
|
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
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|
2655 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
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diff
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|
2656 } |
|
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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changeset
|
2657 |
| 4085 | 2658 data->pos += trak->start_sample * sizeof(uint32_t); |
|
4098
a3e07fab98a3
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Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2659 end = (uint32_t *) data->pos; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2660 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2661 for (pos = end - trak->chunk_samples; pos < end; pos++) { |
|
a3e07fab98a3
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Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2662 trak->chunk_samples_size += ngx_mp4_get_32value(pos); |
|
a3e07fab98a3
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Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2663 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2664 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2665 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4112 | 2666 "chunk samples sizes:%uL", trak->chunk_samples_size); |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2667 |
| 4085 | 2668 atom_size = sizeof(ngx_mp4_stsz_atom_t) + (data->last - data->pos); |
| 2669 trak->size += atom_size; | |
| 2670 | |
| 2671 atom = trak->out[NGX_HTTP_MP4_STSZ_ATOM].buf; | |
| 2672 stsz_atom = (ngx_mp4_stsz_atom_t *) atom->pos; | |
| 2673 | |
| 2674 ngx_mp4_set_32value(stsz_atom->size, atom_size); | |
| 2675 ngx_mp4_set_32value(stsz_atom->entries, | |
| 2676 trak->sample_sizes_entries - trak->start_sample); | |
| 2677 } | |
|
4585
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
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|
2678 |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2679 return NGX_OK; |
| 4085 | 2680 } |
| 2681 | |
| 2682 | |
| 2683 typedef struct { | |
| 2684 u_char size[4]; | |
| 2685 u_char name[4]; | |
| 2686 u_char version[1]; | |
| 2687 u_char flags[3]; | |
| 2688 u_char entries[4]; | |
| 2689 } ngx_mp4_stco_atom_t; | |
| 2690 | |
| 2691 | |
| 2692 static ngx_int_t | |
| 2693 ngx_http_mp4_read_stco_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2694 { | |
| 2695 u_char *atom_header, *atom_table, *atom_end; | |
| 2696 uint32_t entries; | |
| 2697 ngx_buf_t *atom, *data; | |
| 2698 ngx_mp4_stco_atom_t *stco_atom; | |
| 2699 ngx_http_mp4_trak_t *trak; | |
| 2700 | |
| 2701 /* chunk offsets atom */ | |
| 2702 | |
| 2703 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stco atom"); | |
| 2704 | |
| 2705 atom_header = ngx_mp4_atom_header(mp4); | |
| 2706 stco_atom = (ngx_mp4_stco_atom_t *) atom_header; | |
| 2707 ngx_mp4_set_atom_name(stco_atom, 's', 't', 'c', 'o'); | |
| 2708 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2709 if (ngx_mp4_atom_data_size(ngx_mp4_stco_atom_t) > atom_data_size) { |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2710 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2711 "\"%s\" mp4 stco atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2712 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
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|
2713 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2714 |
| 4085 | 2715 entries = ngx_mp4_get_32value(stco_atom->entries); |
| 2716 | |
| 2717 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "chunks:%uD", entries); | |
| 2718 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2719 if (ngx_mp4_atom_data_size(ngx_mp4_stco_atom_t) |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
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diff
changeset
|
2720 + entries * sizeof(uint32_t) > atom_data_size) |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
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|
2721 { |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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changeset
|
2722 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
2723 "\"%s\" mp4 stco atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
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changeset
|
2724 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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|
2725 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
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changeset
|
2726 |
| 4085 | 2727 atom_table = atom_header + sizeof(ngx_mp4_stco_atom_t); |
| 2728 atom_end = atom_table + entries * sizeof(uint32_t); | |
| 2729 | |
| 2730 trak = ngx_mp4_last_trak(mp4); | |
| 2731 trak->chunks = entries; | |
| 2732 | |
| 4107 | 2733 atom = &trak->stco_atom_buf; |
| 4085 | 2734 atom->temporary = 1; |
| 2735 atom->pos = atom_header; | |
| 2736 atom->last = atom_table; | |
| 2737 | |
| 4107 | 2738 data = &trak->stco_data_buf; |
| 4085 | 2739 data->temporary = 1; |
| 2740 data->pos = atom_table; | |
| 2741 data->last = atom_end; | |
| 2742 | |
| 2743 trak->out[NGX_HTTP_MP4_STCO_ATOM].buf = atom; | |
| 2744 trak->out[NGX_HTTP_MP4_STCO_DATA].buf = data; | |
| 2745 | |
| 2746 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2747 | |
| 2748 return NGX_OK; | |
| 2749 } | |
| 2750 | |
| 2751 | |
| 2752 static ngx_int_t | |
| 2753 ngx_http_mp4_update_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 2754 ngx_http_mp4_trak_t *trak) | |
| 2755 { | |
| 2756 size_t atom_size; | |
| 2757 ngx_buf_t *atom, *data; | |
| 2758 ngx_mp4_stco_atom_t *stco_atom; | |
| 2759 | |
| 2760 /* | |
| 2761 * mdia.minf.stbl.stco updating requires trak->start_chunk | |
| 2762 * from mdia.minf.stbl.stsc which depends on value from mdia.mdhd | |
| 2763 * atom which may reside after mdia.minf | |
| 2764 */ | |
| 2765 | |
| 2766 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2767 "mp4 stco atom update"); | |
| 2768 | |
| 2769 data = trak->out[NGX_HTTP_MP4_STCO_DATA].buf; | |
| 2770 | |
| 2771 if (data == NULL) { | |
| 2772 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2773 "no mp4 stco atoms were found in \"%s\"", | |
| 2774 mp4->file.name.data); | |
| 2775 return NGX_ERROR; | |
| 2776 } | |
| 2777 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
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changeset
|
2778 if (trak->start_chunk > trak->chunks) { |
|
3f874d645f45
Mp4: sanity checks cleanup.
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diff
changeset
|
2779 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
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changeset
|
2780 "start time is out mp4 stco chunks in \"%s\"", |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2781 mp4->file.name.data); |
|
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
2782 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
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|
2783 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
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diff
changeset
|
2784 |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2785 data->pos += trak->start_chunk * sizeof(uint32_t); |
| 4085 | 2786 atom_size = sizeof(ngx_mp4_stco_atom_t) + (data->last - data->pos); |
| 2787 trak->size += atom_size; | |
| 2788 | |
| 2789 trak->start_offset = ngx_mp4_get_32value(data->pos); | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2790 trak->start_offset += trak->chunk_samples_size; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2791 ngx_mp4_set_32value(data->pos, trak->start_offset); |
| 4085 | 2792 |
| 2793 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2794 "start chunk offset:%uD", trak->start_offset); | |
| 2795 | |
| 2796 atom = trak->out[NGX_HTTP_MP4_STCO_ATOM].buf; | |
| 2797 stco_atom = (ngx_mp4_stco_atom_t *) atom->pos; | |
| 2798 | |
| 2799 ngx_mp4_set_32value(stco_atom->size, atom_size); | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2800 ngx_mp4_set_32value(stco_atom->entries, trak->chunks - trak->start_chunk); |
| 4085 | 2801 |
| 2802 return NGX_OK; | |
| 2803 } | |
| 2804 | |
| 2805 | |
| 2806 static void | |
| 2807 ngx_http_mp4_adjust_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 2808 ngx_http_mp4_trak_t *trak, int32_t adjustment) | |
| 2809 { | |
| 2810 uint32_t offset, *entry, *end; | |
| 2811 ngx_buf_t *data; | |
| 2812 | |
| 2813 /* | |
| 2814 * moov.trak.mdia.minf.stbl.stco adjustment requires | |
| 2815 * minimal start offset of all traks and new moov atom size | |
| 2816 */ | |
| 2817 | |
| 2818 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2819 "mp4 stco atom adjustment"); | |
| 2820 | |
| 2821 data = trak->out[NGX_HTTP_MP4_STCO_DATA].buf; | |
| 2822 entry = (uint32_t *) data->pos; | |
| 2823 end = (uint32_t *) data->last; | |
| 2824 | |
| 2825 while (entry < end) { | |
| 2826 offset = ngx_mp4_get_32value(entry); | |
| 2827 offset += adjustment; | |
| 2828 ngx_mp4_set_32value(entry, offset); | |
| 2829 entry++; | |
| 2830 } | |
| 2831 } | |
| 2832 | |
| 2833 | |
| 4112 | 2834 typedef struct { |
| 2835 u_char size[4]; | |
| 2836 u_char name[4]; | |
| 2837 u_char version[1]; | |
| 2838 u_char flags[3]; | |
| 2839 u_char entries[4]; | |
| 2840 } ngx_mp4_co64_atom_t; | |
| 2841 | |
| 2842 | |
| 2843 static ngx_int_t | |
| 2844 ngx_http_mp4_read_co64_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2845 { | |
| 2846 u_char *atom_header, *atom_table, *atom_end; | |
| 2847 uint32_t entries; | |
| 2848 ngx_buf_t *atom, *data; | |
| 2849 ngx_mp4_co64_atom_t *co64_atom; | |
| 2850 ngx_http_mp4_trak_t *trak; | |
| 2851 | |
| 2852 /* chunk offsets atom */ | |
| 2853 | |
| 2854 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 co64 atom"); | |
| 2855 | |
| 2856 atom_header = ngx_mp4_atom_header(mp4); | |
| 2857 co64_atom = (ngx_mp4_co64_atom_t *) atom_header; | |
| 2858 ngx_mp4_set_atom_name(co64_atom, 'c', 'o', '6', '4'); | |
| 2859 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2860 if (ngx_mp4_atom_data_size(ngx_mp4_co64_atom_t) > atom_data_size) { |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2861 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2862 "\"%s\" mp4 co64 atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2863 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2864 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2865 |
| 4112 | 2866 entries = ngx_mp4_get_32value(co64_atom->entries); |
| 2867 | |
| 2868 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "chunks:%uD", entries); | |
| 2869 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2870 if (ngx_mp4_atom_data_size(ngx_mp4_co64_atom_t) |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2871 + entries * sizeof(uint64_t) > atom_data_size) |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2872 { |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2873 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2874 "\"%s\" mp4 co64 atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2875 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2876 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2877 |
| 4112 | 2878 atom_table = atom_header + sizeof(ngx_mp4_co64_atom_t); |
| 2879 atom_end = atom_table + entries * sizeof(uint64_t); | |
| 2880 | |
| 2881 trak = ngx_mp4_last_trak(mp4); | |
| 2882 trak->chunks = entries; | |
| 2883 | |
| 2884 atom = &trak->co64_atom_buf; | |
| 2885 atom->temporary = 1; | |
| 2886 atom->pos = atom_header; | |
| 2887 atom->last = atom_table; | |
| 2888 | |
| 2889 data = &trak->co64_data_buf; | |
| 2890 data->temporary = 1; | |
| 2891 data->pos = atom_table; | |
| 2892 data->last = atom_end; | |
| 2893 | |
| 2894 trak->out[NGX_HTTP_MP4_CO64_ATOM].buf = atom; | |
| 2895 trak->out[NGX_HTTP_MP4_CO64_DATA].buf = data; | |
| 2896 | |
| 2897 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2898 | |
| 2899 return NGX_OK; | |
| 2900 } | |
| 2901 | |
| 2902 | |
| 2903 static ngx_int_t | |
| 2904 ngx_http_mp4_update_co64_atom(ngx_http_mp4_file_t *mp4, | |
| 2905 ngx_http_mp4_trak_t *trak) | |
| 2906 { | |
| 2907 size_t atom_size; | |
| 2908 ngx_buf_t *atom, *data; | |
| 2909 ngx_mp4_co64_atom_t *co64_atom; | |
| 2910 | |
| 2911 /* | |
| 2912 * mdia.minf.stbl.co64 updating requires trak->start_chunk | |
| 2913 * from mdia.minf.stbl.stsc which depends on value from mdia.mdhd | |
| 2914 * atom which may reside after mdia.minf | |
| 2915 */ | |
| 2916 | |
| 2917 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2918 "mp4 co64 atom update"); | |
| 2919 | |
| 2920 data = trak->out[NGX_HTTP_MP4_CO64_DATA].buf; | |
| 2921 | |
| 2922 if (data == NULL) { | |
| 2923 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2924 "no mp4 co64 atoms were found in \"%s\"", | |
| 2925 mp4->file.name.data); | |
| 2926 return NGX_ERROR; | |
| 2927 } | |
| 2928 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2929 if (trak->start_chunk > trak->chunks) { |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2930 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2931 "start time is out mp4 co64 chunks in \"%s\"", |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2932 mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2933 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2934 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2935 |
| 4112 | 2936 data->pos += trak->start_chunk * sizeof(uint64_t); |
| 2937 atom_size = sizeof(ngx_mp4_co64_atom_t) + (data->last - data->pos); | |
| 2938 trak->size += atom_size; | |
| 2939 | |
| 2940 trak->start_offset = ngx_mp4_get_64value(data->pos); | |
| 2941 trak->start_offset += trak->chunk_samples_size; | |
| 2942 ngx_mp4_set_64value(data->pos, trak->start_offset); | |
| 2943 | |
| 2944 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2945 "start chunk offset:%uL", trak->start_offset); | |
| 2946 | |
| 2947 atom = trak->out[NGX_HTTP_MP4_CO64_ATOM].buf; | |
| 2948 co64_atom = (ngx_mp4_co64_atom_t *) atom->pos; | |
| 2949 | |
| 2950 ngx_mp4_set_32value(co64_atom->size, atom_size); | |
| 2951 ngx_mp4_set_32value(co64_atom->entries, trak->chunks - trak->start_chunk); | |
| 2952 | |
| 2953 return NGX_OK; | |
| 2954 } | |
| 2955 | |
| 2956 | |
| 2957 static void | |
| 2958 ngx_http_mp4_adjust_co64_atom(ngx_http_mp4_file_t *mp4, | |
| 2959 ngx_http_mp4_trak_t *trak, off_t adjustment) | |
| 2960 { | |
| 2961 uint64_t offset, *entry, *end; | |
| 2962 ngx_buf_t *data; | |
| 2963 | |
| 2964 /* | |
| 2965 * moov.trak.mdia.minf.stbl.co64 adjustment requires | |
| 2966 * minimal start offset of all traks and new moov atom size | |
| 2967 */ | |
| 2968 | |
| 2969 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2970 "mp4 co64 atom adjustment"); | |
| 2971 | |
| 2972 data = trak->out[NGX_HTTP_MP4_CO64_DATA].buf; | |
| 2973 entry = (uint64_t *) data->pos; | |
| 2974 end = (uint64_t *) data->last; | |
| 2975 | |
| 2976 while (entry < end) { | |
| 2977 offset = ngx_mp4_get_64value(entry); | |
| 2978 offset += adjustment; | |
| 2979 ngx_mp4_set_64value(entry, offset); | |
| 2980 entry++; | |
| 2981 } | |
| 2982 } | |
| 2983 | |
| 2984 | |
| 4085 | 2985 static char * |
| 2986 ngx_http_mp4(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 2987 { | |
| 2988 ngx_http_core_loc_conf_t *clcf; | |
| 2989 | |
| 2990 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 2991 clcf->handler = ngx_http_mp4_handler; | |
| 2992 | |
| 2993 return NGX_CONF_OK; | |
| 2994 } | |
| 2995 | |
| 2996 | |
| 2997 static void * | |
| 2998 ngx_http_mp4_create_conf(ngx_conf_t *cf) | |
| 2999 { | |
| 3000 ngx_http_mp4_conf_t *conf; | |
| 3001 | |
| 3002 conf = ngx_palloc(cf->pool, sizeof(ngx_http_mp4_conf_t)); | |
| 3003 if (conf == NULL) { | |
| 3004 return NULL; | |
| 3005 } | |
| 3006 | |
| 3007 conf->buffer_size = NGX_CONF_UNSET_SIZE; | |
|
4089
e27670e1ab70
mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
3008 conf->max_buffer_size = NGX_CONF_UNSET_SIZE; |
| 4085 | 3009 |
| 3010 return conf; | |
| 3011 } | |
| 3012 | |
| 3013 | |
| 3014 static char * | |
| 3015 ngx_http_mp4_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 3016 { | |
| 3017 ngx_http_mp4_conf_t *prev = parent; | |
| 3018 ngx_http_mp4_conf_t *conf = child; | |
| 3019 | |
| 3020 ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size, 512 * 1024); | |
|
4089
e27670e1ab70
mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
3021 ngx_conf_merge_size_value(conf->max_buffer_size, prev->max_buffer_size, |
| 4085 | 3022 10 * 1024 * 1024); |
| 3023 | |
| 3024 return NGX_CONF_OK; | |
| 3025 } |