Mercurial > hg > nginx
annotate src/http/modules/ngx_http_mp4_module.c @ 5097:37671d0042b7
Mp4: fixed handling of too small mdat atoms (ticket #266).
Patch by Gernot Vormayr (with minor changes).
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Mon, 04 Mar 2013 15:39:03 +0000 |
| parents | 49d65c9364fc |
| children | 322434f13bd8 |
| 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 | |
|
4748
192f54280a7a
Entity tags: set for static respones.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4705
diff
changeset
|
589 if (ngx_http_set_etag(r) != NGX_OK) { |
|
192f54280a7a
Entity tags: set for static respones.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4705
diff
changeset
|
590 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
|
192f54280a7a
Entity tags: set for static respones.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4705
diff
changeset
|
591 } |
|
192f54280a7a
Entity tags: set for static respones.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4705
diff
changeset
|
592 |
| 4085 | 593 if (ngx_http_set_content_type(r) != NGX_OK) { |
| 594 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 595 } | |
| 596 | |
| 597 if (mp4 == NULL) { | |
| 598 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); | |
| 599 if (b == NULL) { | |
| 600 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 601 } | |
| 602 | |
| 603 b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t)); | |
| 604 if (b->file == NULL) { | |
| 605 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 606 } | |
| 607 } | |
| 608 | |
| 609 rc = ngx_http_send_header(r); | |
| 610 | |
| 611 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
| 612 return rc; | |
| 613 } | |
| 614 | |
| 615 if (mp4) { | |
| 616 return ngx_http_output_filter(r, mp4->out); | |
| 617 } | |
| 618 | |
| 619 b->file_pos = 0; | |
| 620 b->file_last = of.size; | |
| 621 | |
| 622 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
|
623 b->last_buf = (r == r->main) ? 1 : 0; |
| 4085 | 624 b->last_in_chain = 1; |
| 625 | |
| 626 b->file->fd = of.fd; | |
| 627 b->file->name = path; | |
| 628 b->file->log = log; | |
| 629 b->file->directio = of.is_directio; | |
| 630 | |
| 631 out.buf = b; | |
| 632 out.next = NULL; | |
| 633 | |
| 634 return ngx_http_output_filter(r, &out); | |
| 635 } | |
| 636 | |
| 637 | |
| 638 static ngx_int_t | |
| 639 ngx_http_mp4_process(ngx_http_mp4_file_t *mp4) | |
| 640 { | |
| 641 off_t start_offset, adjustment; | |
| 642 ngx_int_t rc; | |
| 643 ngx_uint_t i, j; | |
| 644 ngx_chain_t **prev; | |
| 645 ngx_http_mp4_trak_t *trak; | |
| 646 ngx_http_mp4_conf_t *conf; | |
| 647 | |
| 648 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 649 "mp4 start:%ui", mp4->start); | |
| 650 | |
| 651 conf = ngx_http_get_module_loc_conf(mp4->request, ngx_http_mp4_module); | |
| 652 | |
| 653 mp4->buffer_size = conf->buffer_size; | |
| 654 | |
| 655 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_atoms, mp4->end); | |
| 656 if (rc != NGX_OK) { | |
| 657 return rc; | |
| 658 } | |
| 659 | |
| 660 if (mp4->trak.nelts == 0) { | |
| 661 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 662 "no mp4 trak atoms were found in \"%s\"", | |
| 663 mp4->file.name.data); | |
| 664 return NGX_ERROR; | |
| 665 } | |
| 666 | |
| 667 if (mp4->mdat_atom.buf == NULL) { | |
| 668 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 669 "no mp4 mdat atom was found in \"%s\"", | |
| 670 mp4->file.name.data); | |
| 671 return NGX_ERROR; | |
| 672 } | |
| 673 | |
| 674 prev = &mp4->out; | |
| 675 | |
| 676 if (mp4->ftyp_atom.buf) { | |
| 677 *prev = &mp4->ftyp_atom; | |
| 678 prev = &mp4->ftyp_atom.next; | |
| 679 } | |
| 680 | |
| 681 *prev = &mp4->moov_atom; | |
| 682 prev = &mp4->moov_atom.next; | |
| 683 | |
| 684 if (mp4->mvhd_atom.buf) { | |
| 685 mp4->moov_size += mp4->mvhd_atom_buf.last - mp4->mvhd_atom_buf.pos; | |
| 686 *prev = &mp4->mvhd_atom; | |
| 687 prev = &mp4->mvhd_atom.next; | |
| 688 } | |
| 689 | |
| 690 start_offset = mp4->end; | |
| 691 trak = mp4->trak.elts; | |
| 692 | |
| 693 for (i = 0; i < mp4->trak.nelts; i++) { | |
| 694 | |
| 695 if (ngx_http_mp4_update_stts_atom(mp4, &trak[i]) != NGX_OK) { | |
| 696 return NGX_ERROR; | |
| 697 } | |
| 698 | |
| 699 if (ngx_http_mp4_update_stss_atom(mp4, &trak[i]) != NGX_OK) { | |
| 700 return NGX_ERROR; | |
| 701 } | |
| 702 | |
| 703 ngx_http_mp4_update_ctts_atom(mp4, &trak[i]); | |
| 704 | |
| 705 if (ngx_http_mp4_update_stsc_atom(mp4, &trak[i]) != NGX_OK) { | |
| 706 return NGX_ERROR; | |
| 707 } | |
| 708 | |
|
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709 if (ngx_http_mp4_update_stsz_atom(mp4, &trak[i]) != NGX_OK) { |
|
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710 return NGX_ERROR; |
|
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|
711 } |
| 4085 | 712 |
| 4112 | 713 if (trak[i].out[NGX_HTTP_MP4_CO64_DATA].buf) { |
| 714 if (ngx_http_mp4_update_co64_atom(mp4, &trak[i]) != NGX_OK) { | |
| 715 return NGX_ERROR; | |
| 716 } | |
| 717 | |
| 718 } else { | |
| 719 if (ngx_http_mp4_update_stco_atom(mp4, &trak[i]) != NGX_OK) { | |
| 720 return NGX_ERROR; | |
| 721 } | |
| 4085 | 722 } |
| 723 | |
| 724 ngx_http_mp4_update_stbl_atom(mp4, &trak[i]); | |
| 725 ngx_http_mp4_update_minf_atom(mp4, &trak[i]); | |
| 726 trak[i].size += trak[i].mdhd_size; | |
| 727 trak[i].size += trak[i].hdlr_size; | |
| 728 ngx_http_mp4_update_mdia_atom(mp4, &trak[i]); | |
| 729 trak[i].size += trak[i].tkhd_size; | |
| 730 ngx_http_mp4_update_trak_atom(mp4, &trak[i]); | |
| 731 | |
| 732 mp4->moov_size += trak[i].size; | |
| 733 | |
| 734 if (start_offset > trak[i].start_offset) { | |
| 735 start_offset = trak[i].start_offset; | |
| 736 } | |
| 737 | |
| 738 *prev = &trak[i].out[NGX_HTTP_MP4_TRAK_ATOM]; | |
| 739 prev = &trak[i].out[NGX_HTTP_MP4_TRAK_ATOM].next; | |
| 740 | |
| 741 for (j = 0; j < NGX_HTTP_MP4_LAST_ATOM + 1; j++) { | |
| 742 if (trak[i].out[j].buf) { | |
| 743 *prev = &trak[i].out[j]; | |
| 744 prev = &trak[i].out[j].next; | |
| 745 } | |
| 746 } | |
| 747 } | |
| 748 | |
| 749 mp4->moov_size += 8; | |
| 750 | |
| 751 ngx_mp4_set_32value(mp4->moov_atom_header, mp4->moov_size); | |
| 752 ngx_mp4_set_atom_name(mp4->moov_atom_header, 'm', 'o', 'o', 'v'); | |
| 753 mp4->content_length += mp4->moov_size; | |
| 754 | |
| 755 *prev = &mp4->mdat_atom; | |
| 756 | |
|
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757 if (start_offset > mp4->mdat_data.buf->file_last) { |
|
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|
758 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
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|
759 "start time is out mp4 mdat atom in \"%s\"", |
|
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|
760 mp4->file.name.data); |
|
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|
761 return NGX_ERROR; |
|
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|
762 } |
|
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|
763 |
| 4085 | 764 adjustment = mp4->ftyp_size + mp4->moov_size |
| 765 + ngx_http_mp4_update_mdat_atom(mp4, start_offset) | |
| 766 - start_offset; | |
| 767 | |
|
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|
768 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4579 | 769 "mp4 adjustment:%O", adjustment); |
| 4085 | 770 |
| 771 for (i = 0; i < mp4->trak.nelts; i++) { | |
| 4112 | 772 if (trak[i].out[NGX_HTTP_MP4_CO64_DATA].buf) { |
| 773 ngx_http_mp4_adjust_co64_atom(mp4, &trak[i], adjustment); | |
| 774 } else { | |
| 775 ngx_http_mp4_adjust_stco_atom(mp4, &trak[i], (int32_t) adjustment); | |
| 776 } | |
| 4085 | 777 } |
| 778 | |
| 779 return NGX_OK; | |
| 780 } | |
| 781 | |
| 782 | |
| 783 typedef struct { | |
| 784 u_char size[4]; | |
| 785 u_char name[4]; | |
| 786 } ngx_mp4_atom_header_t; | |
| 787 | |
| 788 typedef struct { | |
| 789 u_char size[4]; | |
| 790 u_char name[4]; | |
| 791 u_char size64[8]; | |
| 792 } ngx_mp4_atom_header64_t; | |
| 793 | |
| 794 | |
| 795 static ngx_int_t | |
| 796 ngx_http_mp4_read_atom(ngx_http_mp4_file_t *mp4, | |
| 797 ngx_http_mp4_atom_handler_t *atom, uint64_t atom_data_size) | |
| 798 { | |
| 799 off_t end; | |
| 800 size_t atom_header_size; | |
| 801 u_char *atom_header, *atom_name; | |
| 802 uint64_t atom_size; | |
| 803 ngx_int_t rc; | |
| 804 ngx_uint_t n; | |
| 805 | |
| 806 end = mp4->offset + atom_data_size; | |
| 807 | |
| 808 while (mp4->offset < end) { | |
| 809 | |
|
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810 if (ngx_http_mp4_read(mp4, sizeof(uint32_t)) != NGX_OK) { |
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811 return NGX_ERROR; |
| 4085 | 812 } |
| 813 | |
| 814 atom_header = mp4->buffer_pos; | |
| 815 atom_size = ngx_mp4_get_32value(atom_header); | |
| 816 atom_header_size = sizeof(ngx_mp4_atom_header_t); | |
| 817 | |
| 818 if (atom_size == 0) { | |
| 819 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 820 "mp4 atom end"); | |
| 821 return NGX_OK; | |
| 822 } | |
| 823 | |
| 824 if (atom_size < sizeof(ngx_mp4_atom_header_t)) { | |
| 825 | |
| 826 if (atom_size == 1) { | |
| 827 | |
|
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828 if (ngx_http_mp4_read(mp4, sizeof(ngx_mp4_atom_header64_t)) |
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829 != NGX_OK) |
| 4085 | 830 { |
|
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831 return NGX_ERROR; |
| 4085 | 832 } |
| 833 | |
| 834 /* 64-bit atom size */ | |
|
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835 atom_header = mp4->buffer_pos; |
| 4085 | 836 atom_size = ngx_mp4_get_64value(atom_header + 8); |
| 837 atom_header_size = sizeof(ngx_mp4_atom_header64_t); | |
| 838 | |
| 839 } else { | |
| 840 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 841 "\"%s\" mp4 atom is too small:%uL", | |
| 842 mp4->file.name.data, atom_size); | |
| 843 return NGX_ERROR; | |
| 844 } | |
| 845 } | |
| 846 | |
|
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|
847 if (ngx_http_mp4_read(mp4, sizeof(ngx_mp4_atom_header_t)) != NGX_OK) { |
|
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|
848 return NGX_ERROR; |
| 4085 | 849 } |
| 850 | |
|
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|
851 atom_header = mp4->buffer_pos; |
| 4085 | 852 atom_name = atom_header + sizeof(uint32_t); |
| 853 | |
|
4088
8fe1da7b8386
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parents:
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diff
changeset
|
854 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 855 "mp4 atom: %*s @%O:%uL", |
| 856 4, atom_name, mp4->offset, atom_size); | |
| 857 | |
|
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858 if (atom_size > (uint64_t) (NGX_MAX_OFF_T_VALUE - mp4->offset) |
|
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859 || mp4->offset + (off_t) atom_size > end) |
|
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|
860 { |
|
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|
861 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
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Mp4: sanity checks cleanup.
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|
862 "\"%s\" mp4 atom too large:%uL", |
|
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Mp4: sanity checks cleanup.
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|
863 mp4->file.name.data, atom_size); |
|
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|
864 return NGX_ERROR; |
|
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|
865 } |
|
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|
866 |
| 4085 | 867 for (n = 0; atom[n].name; n++) { |
| 868 | |
| 869 if (ngx_strncmp(atom_name, atom[n].name, 4) == 0) { | |
| 870 | |
| 871 ngx_mp4_atom_next(mp4, atom_header_size); | |
| 872 | |
| 873 rc = atom[n].handler(mp4, atom_size - atom_header_size); | |
| 874 if (rc != NGX_OK) { | |
| 875 return rc; | |
| 876 } | |
| 877 | |
| 878 goto next; | |
| 879 } | |
| 880 } | |
| 881 | |
| 882 ngx_mp4_atom_next(mp4, atom_size); | |
| 883 | |
| 884 next: | |
| 885 continue; | |
| 886 } | |
| 887 | |
| 888 return NGX_OK; | |
| 889 } | |
| 890 | |
| 891 | |
| 892 static ngx_int_t | |
|
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|
893 ngx_http_mp4_read(ngx_http_mp4_file_t *mp4, size_t size) |
| 4085 | 894 { |
|
4585
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|
895 ssize_t n; |
|
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|
896 |
|
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|
897 if (mp4->buffer_pos + size <= mp4->buffer_end) { |
|
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|
898 return NGX_OK; |
|
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|
899 } |
| 4085 | 900 |
| 901 if (mp4->offset + (off_t) mp4->buffer_size > mp4->end) { | |
| 902 mp4->buffer_size = (size_t) (mp4->end - mp4->offset); | |
| 903 } | |
| 904 | |
|
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|
905 if (mp4->buffer_size < size) { |
|
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|
906 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
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907 "\"%s\" mp4 file truncated", mp4->file.name.data); |
|
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|
908 return NGX_ERROR; |
|
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|
909 } |
|
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|
910 |
| 4085 | 911 if (mp4->buffer == NULL) { |
| 912 mp4->buffer = ngx_palloc(mp4->request->pool, mp4->buffer_size); | |
| 913 if (mp4->buffer == NULL) { | |
| 914 return NGX_ERROR; | |
| 915 } | |
| 916 | |
| 917 mp4->buffer_start = mp4->buffer; | |
| 918 } | |
| 919 | |
| 920 n = ngx_read_file(&mp4->file, mp4->buffer_start, mp4->buffer_size, | |
| 921 mp4->offset); | |
| 922 | |
| 923 if (n == NGX_ERROR) { | |
| 924 return NGX_ERROR; | |
| 925 } | |
| 926 | |
|
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|
927 if ((size_t) n != mp4->buffer_size) { |
|
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|
928 ngx_log_error(NGX_LOG_CRIT, mp4->file.log, 0, |
|
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|
929 ngx_read_file_n " read only %z of %z from \"%s\"", |
|
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|
930 n, mp4->buffer_size, mp4->file.name.data); |
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|
931 return NGX_ERROR; |
| 4085 | 932 } |
| 933 | |
| 934 mp4->buffer_pos = mp4->buffer_start; | |
|
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|
935 mp4->buffer_end = mp4->buffer_start + mp4->buffer_size; |
| 4085 | 936 |
| 937 return NGX_OK; | |
| 938 } | |
| 939 | |
| 940 | |
| 941 static ngx_int_t | |
| 942 ngx_http_mp4_read_ftyp_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 943 { | |
| 944 u_char *ftyp_atom; | |
| 945 size_t atom_size; | |
| 946 ngx_buf_t *atom; | |
| 947 | |
| 948 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 ftyp atom"); | |
| 949 | |
|
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|
950 if (atom_data_size > 1024 |
|
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changeset
|
951 || ngx_mp4_atom_data(mp4) + atom_data_size > mp4->buffer_end) |
|
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|
952 { |
| 4085 | 953 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
| 954 "\"%s\" mp4 ftyp atom is too large:%uL", | |
| 955 mp4->file.name.data, atom_data_size); | |
| 956 return NGX_ERROR; | |
| 957 } | |
| 958 | |
| 959 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 960 | |
| 961 ftyp_atom = ngx_palloc(mp4->request->pool, atom_size); | |
| 962 if (ftyp_atom == NULL) { | |
| 963 return NGX_ERROR; | |
| 964 } | |
| 965 | |
| 966 ngx_mp4_set_32value(ftyp_atom, atom_size); | |
| 967 ngx_mp4_set_atom_name(ftyp_atom, 'f', 't', 'y', 'p'); | |
| 968 | |
| 969 /* | |
| 970 * only moov atom content is guaranteed to be in mp4->buffer | |
| 971 * during sending response, so ftyp atom content should be copied | |
| 972 */ | |
| 973 ngx_memcpy(ftyp_atom + sizeof(ngx_mp4_atom_header_t), | |
| 974 ngx_mp4_atom_data(mp4), (size_t) atom_data_size); | |
| 975 | |
| 976 atom = &mp4->ftyp_atom_buf; | |
| 977 atom->temporary = 1; | |
| 978 atom->pos = ftyp_atom; | |
| 979 atom->last = ftyp_atom + atom_size; | |
| 980 | |
| 981 mp4->ftyp_atom.buf = atom; | |
| 982 mp4->ftyp_size = atom_size; | |
| 983 mp4->content_length = atom_size; | |
| 984 | |
| 985 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 986 | |
| 987 return NGX_OK; | |
| 988 } | |
| 989 | |
| 990 | |
| 991 /* | |
| 992 * Small excess buffer to process atoms after moov atom, mp4->buffer_start | |
| 993 * will be set to this buffer part after moov atom processing. | |
| 994 */ | |
| 995 #define NGX_HTTP_MP4_MOOV_BUFFER_EXCESS (4 * 1024) | |
| 996 | |
| 997 static ngx_int_t | |
| 998 ngx_http_mp4_read_moov_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 999 { | |
| 1000 ngx_int_t rc; | |
| 1001 ngx_uint_t no_mdat; | |
| 1002 ngx_buf_t *atom; | |
| 1003 ngx_http_mp4_conf_t *conf; | |
| 1004 | |
| 1005 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 moov atom"); | |
| 1006 | |
| 1007 no_mdat = (mp4->mdat_atom.buf == NULL); | |
| 1008 | |
| 1009 if (no_mdat && mp4->start == 0) { | |
| 1010 /* | |
| 1011 * send original file if moov atom resides before | |
| 1012 * mdat atom and client requests integral file | |
| 1013 */ | |
| 1014 return NGX_DECLINED; | |
| 1015 } | |
| 1016 | |
| 1017 conf = ngx_http_get_module_loc_conf(mp4->request, ngx_http_mp4_module); | |
| 1018 | |
| 1019 if (atom_data_size > mp4->buffer_size) { | |
| 1020 | |
|
4089
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mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
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4088
diff
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|
1021 if (atom_data_size > conf->max_buffer_size) { |
| 4085 | 1022 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
| 1023 "\"%s\" mp4 moov atom is too large:%uL, " | |
|
4089
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diff
changeset
|
1024 "you may want to increase mp4_max_buffer_size", |
| 4085 | 1025 mp4->file.name.data, atom_data_size); |
| 1026 return NGX_ERROR; | |
| 1027 } | |
| 1028 | |
| 1029 ngx_pfree(mp4->request->pool, mp4->buffer); | |
| 1030 mp4->buffer = NULL; | |
| 1031 mp4->buffer_pos = NULL; | |
| 1032 mp4->buffer_end = NULL; | |
| 1033 | |
| 1034 mp4->buffer_size = (size_t) atom_data_size | |
| 1035 + NGX_HTTP_MP4_MOOV_BUFFER_EXCESS * no_mdat; | |
| 1036 } | |
| 1037 | |
|
4705
9a43b145a8ba
Mp4: fixed build on win32 after r4689.
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parents:
4688
diff
changeset
|
1038 if (ngx_http_mp4_read(mp4, (size_t) atom_data_size) != NGX_OK) { |
|
4688
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
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parents:
4687
diff
changeset
|
1039 return NGX_ERROR; |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
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diff
changeset
|
1040 } |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
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diff
changeset
|
1041 |
| 4085 | 1042 mp4->trak.elts = &mp4->traks; |
| 1043 mp4->trak.size = sizeof(ngx_http_mp4_trak_t); | |
| 1044 mp4->trak.nalloc = 2; | |
| 1045 mp4->trak.pool = mp4->request->pool; | |
| 1046 | |
| 1047 atom = &mp4->moov_atom_buf; | |
| 1048 atom->temporary = 1; | |
| 1049 atom->pos = mp4->moov_atom_header; | |
| 1050 atom->last = mp4->moov_atom_header + 8; | |
| 1051 | |
| 1052 mp4->moov_atom.buf = &mp4->moov_atom_buf; | |
| 1053 | |
| 1054 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_moov_atoms, atom_data_size); | |
| 1055 | |
| 1056 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 moov atom done"); | |
| 1057 | |
| 1058 if (no_mdat) { | |
| 1059 mp4->buffer_start = mp4->buffer_pos; | |
| 1060 mp4->buffer_size = NGX_HTTP_MP4_MOOV_BUFFER_EXCESS; | |
| 1061 | |
|
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Mp4: fixed streaming if moov atom is at buffer edge.
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parents:
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diff
changeset
|
1062 if (mp4->buffer_start + mp4->buffer_size > mp4->buffer_end) { |
|
5fedb27c3e36
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parents:
4687
diff
changeset
|
1063 mp4->buffer = NULL; |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
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parents:
4687
diff
changeset
|
1064 mp4->buffer_pos = NULL; |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
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parents:
4687
diff
changeset
|
1065 mp4->buffer_end = NULL; |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
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parents:
4687
diff
changeset
|
1066 } |
|
5fedb27c3e36
Mp4: fixed streaming if moov atom is at buffer edge.
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parents:
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diff
changeset
|
1067 |
| 4085 | 1068 } else { |
| 1069 /* skip atoms after moov atom */ | |
| 1070 mp4->offset = mp4->end; | |
| 1071 } | |
| 1072 | |
| 1073 return rc; | |
| 1074 } | |
| 1075 | |
| 1076 | |
| 1077 static ngx_int_t | |
| 1078 ngx_http_mp4_read_mdat_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1079 { | |
| 1080 ngx_buf_t *data; | |
| 1081 | |
| 1082 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mdat atom"); | |
| 1083 | |
| 1084 data = &mp4->mdat_data_buf; | |
| 1085 data->file = &mp4->file; | |
| 1086 data->in_file = 1; | |
| 1087 data->last_buf = 1; | |
| 1088 data->last_in_chain = 1; | |
| 1089 data->file_last = mp4->offset + atom_data_size; | |
| 1090 | |
| 1091 mp4->mdat_atom.buf = &mp4->mdat_atom_buf; | |
| 1092 mp4->mdat_atom.next = &mp4->mdat_data; | |
| 1093 mp4->mdat_data.buf = data; | |
| 1094 | |
| 1095 if (mp4->trak.nelts) { | |
| 1096 /* skip atoms after mdat atom */ | |
| 1097 mp4->offset = mp4->end; | |
| 1098 | |
| 1099 } else { | |
| 1100 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1101 } | |
| 1102 | |
| 1103 return NGX_OK; | |
| 1104 } | |
| 1105 | |
| 1106 | |
| 1107 static size_t | |
| 1108 ngx_http_mp4_update_mdat_atom(ngx_http_mp4_file_t *mp4, off_t start_offset) | |
| 1109 { | |
| 1110 off_t atom_data_size; | |
| 1111 u_char *atom_header; | |
| 1112 uint32_t atom_header_size; | |
| 1113 uint64_t atom_size; | |
| 1114 ngx_buf_t *atom; | |
| 1115 | |
| 1116 atom_data_size = mp4->mdat_data.buf->file_last - start_offset; | |
| 1117 mp4->mdat_data.buf->file_pos = start_offset; | |
| 1118 | |
|
4088
8fe1da7b8386
bugfix of r4086: nginx could not be built without debug log.
Igor Sysoev <igor@sysoev.ru>
parents:
4087
diff
changeset
|
1119 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 1120 "mdat new offset @%O:%O", start_offset, atom_data_size); |
| 1121 | |
| 1122 atom_header = mp4->mdat_atom_header; | |
| 1123 | |
|
4155
d9636bf3f159
Fix of building on platforms with 32-bit off_t. (closed #23)
Igor Sysoev <igor@sysoev.ru>
parents:
4112
diff
changeset
|
1124 if ((uint64_t) atom_data_size > 0xffffffff) { |
| 4085 | 1125 atom_size = 1; |
| 1126 atom_header_size = sizeof(ngx_mp4_atom_header64_t); | |
| 1127 ngx_mp4_set_64value(atom_header + sizeof(ngx_mp4_atom_header_t), | |
| 1128 sizeof(ngx_mp4_atom_header64_t) + atom_data_size); | |
| 1129 } else { | |
| 1130 atom_size = sizeof(ngx_mp4_atom_header_t) + atom_data_size; | |
| 1131 atom_header_size = sizeof(ngx_mp4_atom_header_t); | |
| 1132 } | |
| 1133 | |
|
4282
71cdac0b9ea6
Fix of "Content-Length" header of MP4 response if start argument was used.
Igor Sysoev <igor@sysoev.ru>
parents:
4189
diff
changeset
|
1134 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
|
1135 |
| 4085 | 1136 ngx_mp4_set_32value(atom_header, atom_size); |
| 1137 ngx_mp4_set_atom_name(atom_header, 'm', 'd', 'a', 't'); | |
| 1138 | |
| 1139 atom = &mp4->mdat_atom_buf; | |
| 1140 atom->temporary = 1; | |
| 1141 atom->pos = atom_header; | |
| 1142 atom->last = atom_header + atom_header_size; | |
| 1143 | |
| 1144 return atom_header_size; | |
| 1145 } | |
| 1146 | |
| 1147 | |
| 1148 typedef struct { | |
| 1149 u_char size[4]; | |
| 1150 u_char name[4]; | |
| 1151 u_char version[1]; | |
| 1152 u_char flags[3]; | |
| 1153 u_char creation_time[4]; | |
| 1154 u_char modification_time[4]; | |
| 1155 u_char timescale[4]; | |
| 1156 u_char duration[4]; | |
| 1157 u_char rate[4]; | |
| 1158 u_char volume[2]; | |
| 1159 u_char reserved[10]; | |
| 1160 u_char matrix[36]; | |
| 1161 u_char preview_time[4]; | |
| 1162 u_char preview_duration[4]; | |
| 1163 u_char poster_time[4]; | |
| 1164 u_char selection_time[4]; | |
| 1165 u_char selection_duration[4]; | |
| 1166 u_char current_time[4]; | |
| 1167 u_char next_track_id[4]; | |
| 1168 } ngx_mp4_mvhd_atom_t; | |
| 1169 | |
| 1170 typedef struct { | |
| 1171 u_char size[4]; | |
| 1172 u_char name[4]; | |
| 1173 u_char version[1]; | |
| 1174 u_char flags[3]; | |
| 1175 u_char creation_time[8]; | |
| 1176 u_char modification_time[8]; | |
| 1177 u_char timescale[4]; | |
| 1178 u_char duration[8]; | |
| 1179 u_char rate[4]; | |
| 1180 u_char volume[2]; | |
| 1181 u_char reserved[10]; | |
| 1182 u_char matrix[36]; | |
| 1183 u_char preview_time[4]; | |
| 1184 u_char preview_duration[4]; | |
| 1185 u_char poster_time[4]; | |
| 1186 u_char selection_time[4]; | |
| 1187 u_char selection_duration[4]; | |
| 1188 u_char current_time[4]; | |
| 1189 u_char next_track_id[4]; | |
| 1190 } ngx_mp4_mvhd64_atom_t; | |
| 1191 | |
| 1192 | |
| 1193 static ngx_int_t | |
| 1194 ngx_http_mp4_read_mvhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1195 { | |
| 1196 u_char *atom_header; | |
| 1197 size_t atom_size; | |
| 1198 uint32_t timescale; | |
| 1199 uint64_t duration; | |
| 1200 ngx_buf_t *atom; | |
| 1201 ngx_mp4_mvhd_atom_t *mvhd_atom; | |
| 1202 ngx_mp4_mvhd64_atom_t *mvhd64_atom; | |
| 1203 | |
| 1204 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mvhd atom"); | |
| 1205 | |
| 1206 atom_header = ngx_mp4_atom_header(mp4); | |
| 1207 mvhd_atom = (ngx_mp4_mvhd_atom_t *) atom_header; | |
| 1208 mvhd64_atom = (ngx_mp4_mvhd64_atom_t *) atom_header; | |
| 1209 ngx_mp4_set_atom_name(atom_header, 'm', 'v', 'h', 'd'); | |
| 1210 | |
|
4585
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Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
1211 if (ngx_mp4_atom_data_size(ngx_mp4_mvhd_atom_t) > atom_data_size) { |
|
3f874d645f45
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parents:
4579
diff
changeset
|
1212 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
1213 "\"%s\" mp4 mvhd atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
1214 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
1215 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
1216 |
| 4085 | 1217 if (mvhd_atom->version[0] == 0) { |
| 1218 /* version 0: 32-bit duration */ | |
| 1219 timescale = ngx_mp4_get_32value(mvhd_atom->timescale); | |
| 1220 duration = ngx_mp4_get_32value(mvhd_atom->duration); | |
| 1221 | |
| 1222 } else { | |
| 1223 /* version 1: 64-bit duration */ | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
1224 |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
1225 if (ngx_mp4_atom_data_size(ngx_mp4_mvhd64_atom_t) > atom_data_size) { |
|
3f874d645f45
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parents:
4579
diff
changeset
|
1226 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
1227 "\"%s\" mp4 mvhd atom too small", |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
1228 mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
1229 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
1230 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
1231 |
| 4085 | 1232 timescale = ngx_mp4_get_32value(mvhd64_atom->timescale); |
| 1233 duration = ngx_mp4_get_64value(mvhd64_atom->duration); | |
| 1234 } | |
| 1235 | |
| 1236 mp4->timescale = timescale; | |
| 1237 | |
| 1238 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1239 "mvhd timescale:%uD, duration:%uL, time:%.3fs", | |
| 1240 timescale, duration, (double) duration / timescale); | |
| 1241 | |
| 1242 duration -= (uint64_t) mp4->start * timescale / 1000; | |
| 1243 | |
| 1244 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1245 "mvhd new duration:%uL, time:%.3fs", | |
| 1246 duration, (double) duration / timescale); | |
| 1247 | |
| 1248 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1249 ngx_mp4_set_32value(mvhd_atom->size, atom_size); | |
| 1250 | |
| 1251 if (mvhd_atom->version[0] == 0) { | |
| 1252 ngx_mp4_set_32value(mvhd_atom->duration, duration); | |
| 1253 | |
| 1254 } else { | |
| 1255 ngx_mp4_set_64value(mvhd64_atom->duration, duration); | |
| 1256 } | |
| 1257 | |
| 1258 atom = &mp4->mvhd_atom_buf; | |
| 1259 atom->temporary = 1; | |
| 1260 atom->pos = atom_header; | |
| 1261 atom->last = atom_header + atom_size; | |
| 1262 | |
| 1263 mp4->mvhd_atom.buf = atom; | |
| 1264 | |
| 1265 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1266 | |
| 1267 return NGX_OK; | |
| 1268 } | |
| 1269 | |
| 1270 | |
| 1271 static ngx_int_t | |
| 1272 ngx_http_mp4_read_trak_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1273 { | |
|
4099
9ee6944590c0
Skipping traks with unsupported media formats.
Igor Sysoev <igor@sysoev.ru>
parents:
4098
diff
changeset
|
1274 u_char *atom_header, *atom_end; |
|
9ee6944590c0
Skipping traks with unsupported media formats.
Igor Sysoev <igor@sysoev.ru>
parents:
4098
diff
changeset
|
1275 off_t atom_file_end; |
|
9ee6944590c0
Skipping traks with unsupported media formats.
Igor Sysoev <igor@sysoev.ru>
parents:
4098
diff
changeset
|
1276 ngx_int_t rc; |
| 4085 | 1277 ngx_buf_t *atom; |
| 1278 ngx_http_mp4_trak_t *trak; | |
| 1279 | |
| 1280 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 trak atom"); | |
| 1281 | |
| 1282 trak = ngx_array_push(&mp4->trak); | |
| 1283 if (trak == NULL) { | |
| 1284 return NGX_ERROR; | |
| 1285 } | |
| 1286 | |
| 1287 ngx_memzero(trak, sizeof(ngx_http_mp4_trak_t)); | |
| 1288 | |
| 1289 atom_header = ngx_mp4_atom_header(mp4); | |
| 1290 ngx_mp4_set_atom_name(atom_header, 't', 'r', 'a', 'k'); | |
| 1291 | |
| 1292 atom = &trak->trak_atom_buf; | |
| 1293 atom->temporary = 1; | |
| 1294 atom->pos = atom_header; | |
| 1295 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1296 | |
| 1297 trak->out[NGX_HTTP_MP4_TRAK_ATOM].buf = atom; | |
| 1298 | |
|
4099
9ee6944590c0
Skipping traks with unsupported media formats.
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parents:
4098
diff
changeset
|
1299 atom_end = mp4->buffer_pos + atom_data_size; |
|
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1300 atom_file_end = mp4->offset + atom_data_size; |
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1301 |
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1302 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_trak_atoms, atom_data_size); |
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1303 |
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1304 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
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1305 "mp4 trak atom: %i", rc); |
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1306 |
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1307 if (rc == NGX_DECLINED) { |
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1308 /* skip this trak */ |
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1309 ngx_memzero(trak, sizeof(ngx_http_mp4_trak_t)); |
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1310 mp4->trak.nelts--; |
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1311 mp4->buffer_pos = atom_end; |
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1312 mp4->offset = atom_file_end; |
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1313 return NGX_OK; |
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1314 } |
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1315 |
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1316 return rc; |
| 4085 | 1317 } |
| 1318 | |
| 1319 | |
| 1320 static void | |
| 1321 ngx_http_mp4_update_trak_atom(ngx_http_mp4_file_t *mp4, | |
| 1322 ngx_http_mp4_trak_t *trak) | |
| 1323 { | |
| 1324 ngx_buf_t *atom; | |
| 1325 | |
| 1326 trak->size += sizeof(ngx_mp4_atom_header_t); | |
| 1327 atom = &trak->trak_atom_buf; | |
| 1328 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1329 } | |
| 1330 | |
| 1331 | |
| 1332 static ngx_int_t | |
| 1333 ngx_http_mp4_read_cmov_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1334 { | |
| 1335 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 1336 "\"%s\" mp4 compressed moov atom (cmov) is not supported", | |
| 1337 mp4->file.name.data); | |
| 1338 | |
| 1339 return NGX_ERROR; | |
| 1340 } | |
| 1341 | |
| 1342 | |
| 1343 typedef struct { | |
| 1344 u_char size[4]; | |
| 1345 u_char name[4]; | |
| 1346 u_char version[1]; | |
| 1347 u_char flags[3]; | |
| 1348 u_char creation_time[4]; | |
| 1349 u_char modification_time[4]; | |
| 1350 u_char track_id[4]; | |
| 1351 u_char reserved1[4]; | |
| 1352 u_char duration[4]; | |
| 1353 u_char reserved2[8]; | |
| 1354 u_char layer[2]; | |
| 1355 u_char group[2]; | |
| 1356 u_char volume[2]; | |
| 1357 u_char reverved3[2]; | |
| 1358 u_char matrix[36]; | |
| 1359 u_char width[4]; | |
| 1360 u_char heigth[4]; | |
| 1361 } ngx_mp4_tkhd_atom_t; | |
| 1362 | |
| 1363 typedef struct { | |
| 1364 u_char size[4]; | |
| 1365 u_char name[4]; | |
| 1366 u_char version[1]; | |
| 1367 u_char flags[3]; | |
| 1368 u_char creation_time[8]; | |
| 1369 u_char modification_time[8]; | |
| 1370 u_char track_id[4]; | |
| 1371 u_char reserved1[4]; | |
| 1372 u_char duration[8]; | |
| 1373 u_char reserved2[8]; | |
| 1374 u_char layer[2]; | |
| 1375 u_char group[2]; | |
| 1376 u_char volume[2]; | |
| 1377 u_char reverved3[2]; | |
| 1378 u_char matrix[36]; | |
| 1379 u_char width[4]; | |
| 1380 u_char heigth[4]; | |
| 1381 } ngx_mp4_tkhd64_atom_t; | |
| 1382 | |
| 1383 | |
| 1384 static ngx_int_t | |
| 1385 ngx_http_mp4_read_tkhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1386 { | |
| 1387 u_char *atom_header; | |
| 1388 size_t atom_size; | |
| 1389 uint64_t duration; | |
| 1390 ngx_buf_t *atom; | |
| 1391 ngx_http_mp4_trak_t *trak; | |
| 1392 ngx_mp4_tkhd_atom_t *tkhd_atom; | |
| 1393 ngx_mp4_tkhd64_atom_t *tkhd64_atom; | |
| 1394 | |
| 1395 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 tkhd atom"); | |
| 1396 | |
| 1397 atom_header = ngx_mp4_atom_header(mp4); | |
| 1398 tkhd_atom = (ngx_mp4_tkhd_atom_t *) atom_header; | |
| 1399 tkhd64_atom = (ngx_mp4_tkhd64_atom_t *) atom_header; | |
| 1400 ngx_mp4_set_atom_name(tkhd_atom, 't', 'k', 'h', 'd'); | |
| 1401 | |
|
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1402 if (ngx_mp4_atom_data_size(ngx_mp4_tkhd_atom_t) > atom_data_size) { |
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1403 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1404 "\"%s\" mp4 tkhd atom too small", mp4->file.name.data); |
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1405 return NGX_ERROR; |
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1406 } |
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1407 |
| 4085 | 1408 if (tkhd_atom->version[0] == 0) { |
| 1409 /* version 0: 32-bit duration */ | |
| 1410 duration = ngx_mp4_get_32value(tkhd_atom->duration); | |
| 1411 | |
| 1412 } else { | |
| 1413 /* version 1: 64-bit duration */ | |
|
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1414 |
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1415 if (ngx_mp4_atom_data_size(ngx_mp4_tkhd64_atom_t) > atom_data_size) { |
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1416 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1417 "\"%s\" mp4 tkhd atom too small", |
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1418 mp4->file.name.data); |
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1419 return NGX_ERROR; |
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1420 } |
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1421 |
| 4085 | 1422 duration = ngx_mp4_get_64value(tkhd64_atom->duration); |
| 1423 } | |
| 1424 | |
| 1425 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1426 "tkhd duration:%uL, time:%.3fs", | |
| 1427 duration, (double) duration / mp4->timescale); | |
| 1428 | |
| 1429 duration -= (uint64_t) mp4->start * mp4->timescale / 1000; | |
| 1430 | |
| 1431 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1432 "tkhd new duration:%uL, time:%.3fs", | |
| 1433 duration, (double) duration / mp4->timescale); | |
| 1434 | |
| 1435 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1436 | |
| 1437 trak = ngx_mp4_last_trak(mp4); | |
| 1438 trak->tkhd_size = atom_size; | |
| 1439 | |
| 1440 ngx_mp4_set_32value(tkhd_atom->size, atom_size); | |
| 1441 | |
| 1442 if (tkhd_atom->version[0] == 0) { | |
| 1443 ngx_mp4_set_32value(tkhd_atom->duration, duration); | |
| 1444 | |
| 1445 } else { | |
| 1446 ngx_mp4_set_64value(tkhd64_atom->duration, duration); | |
| 1447 } | |
| 1448 | |
| 1449 atom = &trak->tkhd_atom_buf; | |
| 1450 atom->temporary = 1; | |
| 1451 atom->pos = atom_header; | |
| 1452 atom->last = atom_header + atom_size; | |
| 1453 | |
| 1454 trak->out[NGX_HTTP_MP4_TKHD_ATOM].buf = atom; | |
| 1455 | |
| 1456 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1457 | |
| 1458 return NGX_OK; | |
| 1459 } | |
| 1460 | |
| 1461 | |
| 1462 static ngx_int_t | |
| 1463 ngx_http_mp4_read_mdia_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1464 { | |
| 1465 u_char *atom_header; | |
| 1466 ngx_buf_t *atom; | |
| 1467 ngx_http_mp4_trak_t *trak; | |
| 1468 | |
| 1469 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process mdia atom"); | |
| 1470 | |
| 1471 atom_header = ngx_mp4_atom_header(mp4); | |
| 1472 ngx_mp4_set_atom_name(atom_header, 'm', 'd', 'i', 'a'); | |
| 1473 | |
| 1474 trak = ngx_mp4_last_trak(mp4); | |
| 1475 | |
| 1476 atom = &trak->mdia_atom_buf; | |
| 1477 atom->temporary = 1; | |
| 1478 atom->pos = atom_header; | |
| 1479 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1480 | |
| 1481 trak->out[NGX_HTTP_MP4_MDIA_ATOM].buf = atom; | |
| 1482 | |
| 1483 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_mdia_atoms, atom_data_size); | |
| 1484 } | |
| 1485 | |
| 1486 | |
| 1487 static void | |
| 1488 ngx_http_mp4_update_mdia_atom(ngx_http_mp4_file_t *mp4, | |
| 1489 ngx_http_mp4_trak_t *trak) | |
| 1490 { | |
| 1491 ngx_buf_t *atom; | |
| 1492 | |
| 1493 trak->size += sizeof(ngx_mp4_atom_header_t); | |
| 1494 atom = &trak->mdia_atom_buf; | |
| 1495 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1496 } | |
| 1497 | |
| 1498 | |
| 1499 typedef struct { | |
| 1500 u_char size[4]; | |
| 1501 u_char name[4]; | |
| 1502 u_char version[1]; | |
| 1503 u_char flags[3]; | |
| 1504 u_char creation_time[4]; | |
| 1505 u_char modification_time[4]; | |
| 1506 u_char timescale[4]; | |
| 1507 u_char duration[4]; | |
| 1508 u_char language[2]; | |
| 1509 u_char quality[2]; | |
| 1510 } ngx_mp4_mdhd_atom_t; | |
| 1511 | |
| 1512 typedef struct { | |
| 1513 u_char size[4]; | |
| 1514 u_char name[4]; | |
| 1515 u_char version[1]; | |
| 1516 u_char flags[3]; | |
| 1517 u_char creation_time[8]; | |
| 1518 u_char modification_time[8]; | |
| 1519 u_char timescale[4]; | |
| 1520 u_char duration[8]; | |
| 1521 u_char language[2]; | |
| 1522 u_char quality[2]; | |
| 1523 } ngx_mp4_mdhd64_atom_t; | |
| 1524 | |
| 1525 | |
| 1526 static ngx_int_t | |
| 1527 ngx_http_mp4_read_mdhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1528 { | |
| 1529 u_char *atom_header; | |
| 1530 size_t atom_size; | |
| 1531 uint32_t timescale; | |
| 1532 uint64_t duration; | |
| 1533 ngx_buf_t *atom; | |
| 1534 ngx_http_mp4_trak_t *trak; | |
| 1535 ngx_mp4_mdhd_atom_t *mdhd_atom; | |
| 1536 ngx_mp4_mdhd64_atom_t *mdhd64_atom; | |
| 1537 | |
| 1538 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mdhd atom"); | |
| 1539 | |
| 1540 atom_header = ngx_mp4_atom_header(mp4); | |
| 1541 mdhd_atom = (ngx_mp4_mdhd_atom_t *) atom_header; | |
| 1542 mdhd64_atom = (ngx_mp4_mdhd64_atom_t *) atom_header; | |
| 1543 ngx_mp4_set_atom_name(mdhd_atom, 'm', 'd', 'h', 'd'); | |
| 1544 | |
|
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1545 if (ngx_mp4_atom_data_size(ngx_mp4_mdhd_atom_t) > atom_data_size) { |
|
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1546 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1547 "\"%s\" mp4 mdhd atom too small", mp4->file.name.data); |
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1548 return NGX_ERROR; |
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1549 } |
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1550 |
| 4085 | 1551 if (mdhd_atom->version[0] == 0) { |
| 1552 /* version 0: everything is 32-bit */ | |
| 1553 timescale = ngx_mp4_get_32value(mdhd_atom->timescale); | |
| 1554 duration = ngx_mp4_get_32value(mdhd_atom->duration); | |
| 1555 | |
| 1556 } else { | |
| 1557 /* version 1: 64-bit duration and 32-bit timescale */ | |
|
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1558 |
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1559 if (ngx_mp4_atom_data_size(ngx_mp4_mdhd64_atom_t) > atom_data_size) { |
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1560 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1561 "\"%s\" mp4 mdhd atom too small", |
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1562 mp4->file.name.data); |
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1563 return NGX_ERROR; |
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1564 } |
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1565 |
| 4085 | 1566 timescale = ngx_mp4_get_32value(mdhd64_atom->timescale); |
| 1567 duration = ngx_mp4_get_64value(mdhd64_atom->duration); | |
| 1568 } | |
| 1569 | |
| 1570 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1571 "mdhd timescale:%uD, duration:%uL, time:%.3fs", | |
| 1572 timescale, duration, (double) duration / timescale); | |
| 1573 | |
| 1574 duration -= (uint64_t) mp4->start * timescale / 1000; | |
| 1575 | |
| 1576 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1577 "mdhd new duration:%uL, time:%.3fs", | |
| 1578 duration, (double) duration / timescale); | |
| 1579 | |
| 1580 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1581 | |
| 1582 trak = ngx_mp4_last_trak(mp4); | |
| 1583 trak->mdhd_size = atom_size; | |
| 1584 trak->timescale = timescale; | |
| 1585 | |
| 1586 ngx_mp4_set_32value(mdhd_atom->size, atom_size); | |
| 1587 | |
| 1588 if (mdhd_atom->version[0] == 0) { | |
| 1589 ngx_mp4_set_32value(mdhd_atom->duration, duration); | |
| 1590 | |
| 1591 } else { | |
| 1592 ngx_mp4_set_64value(mdhd64_atom->duration, duration); | |
| 1593 } | |
| 1594 | |
| 1595 atom = &trak->mdhd_atom_buf; | |
| 1596 atom->temporary = 1; | |
| 1597 atom->pos = atom_header; | |
| 1598 atom->last = atom_header + atom_size; | |
| 1599 | |
| 1600 trak->out[NGX_HTTP_MP4_MDHD_ATOM].buf = atom; | |
| 1601 | |
| 1602 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1603 | |
| 1604 return NGX_OK; | |
| 1605 } | |
| 1606 | |
| 1607 | |
| 1608 static ngx_int_t | |
| 1609 ngx_http_mp4_read_hdlr_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1610 { | |
| 1611 u_char *atom_header; | |
| 1612 size_t atom_size; | |
| 1613 ngx_buf_t *atom; | |
| 1614 ngx_http_mp4_trak_t *trak; | |
| 1615 | |
| 1616 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 hdlr atom"); | |
| 1617 | |
| 1618 atom_header = ngx_mp4_atom_header(mp4); | |
| 1619 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1620 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1621 ngx_mp4_set_atom_name(atom_header, 'h', 'd', 'l', 'r'); | |
| 1622 | |
| 1623 trak = ngx_mp4_last_trak(mp4); | |
| 1624 | |
| 1625 atom = &trak->hdlr_atom_buf; | |
| 1626 atom->temporary = 1; | |
| 1627 atom->pos = atom_header; | |
| 1628 atom->last = atom_header + atom_size; | |
| 1629 | |
| 1630 trak->hdlr_size = atom_size; | |
| 1631 trak->out[NGX_HTTP_MP4_HDLR_ATOM].buf = atom; | |
| 1632 | |
| 1633 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1634 | |
| 1635 return NGX_OK; | |
| 1636 } | |
| 1637 | |
| 1638 | |
| 1639 static ngx_int_t | |
| 1640 ngx_http_mp4_read_minf_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1641 { | |
| 1642 u_char *atom_header; | |
| 1643 ngx_buf_t *atom; | |
| 1644 ngx_http_mp4_trak_t *trak; | |
| 1645 | |
| 1646 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process minf atom"); | |
| 1647 | |
| 1648 atom_header = ngx_mp4_atom_header(mp4); | |
| 1649 ngx_mp4_set_atom_name(atom_header, 'm', 'i', 'n', 'f'); | |
| 1650 | |
| 1651 trak = ngx_mp4_last_trak(mp4); | |
| 1652 | |
| 1653 atom = &trak->minf_atom_buf; | |
| 1654 atom->temporary = 1; | |
| 1655 atom->pos = atom_header; | |
| 1656 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1657 | |
| 1658 trak->out[NGX_HTTP_MP4_MINF_ATOM].buf = atom; | |
| 1659 | |
| 1660 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_minf_atoms, atom_data_size); | |
| 1661 } | |
| 1662 | |
| 1663 | |
| 1664 static void | |
| 1665 ngx_http_mp4_update_minf_atom(ngx_http_mp4_file_t *mp4, | |
| 1666 ngx_http_mp4_trak_t *trak) | |
| 1667 { | |
| 1668 ngx_buf_t *atom; | |
| 1669 | |
| 1670 trak->size += sizeof(ngx_mp4_atom_header_t) | |
| 1671 + trak->vmhd_size | |
| 1672 + trak->smhd_size | |
| 1673 + trak->dinf_size; | |
| 1674 atom = &trak->minf_atom_buf; | |
| 1675 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1676 } | |
| 1677 | |
| 1678 | |
| 1679 static ngx_int_t | |
| 1680 ngx_http_mp4_read_vmhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1681 { | |
| 1682 u_char *atom_header; | |
| 1683 size_t atom_size; | |
| 1684 ngx_buf_t *atom; | |
| 1685 ngx_http_mp4_trak_t *trak; | |
| 1686 | |
| 1687 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 vmhd atom"); | |
| 1688 | |
| 1689 atom_header = ngx_mp4_atom_header(mp4); | |
| 1690 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1691 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1692 ngx_mp4_set_atom_name(atom_header, 'v', 'm', 'h', 'd'); | |
| 1693 | |
| 1694 trak = ngx_mp4_last_trak(mp4); | |
| 1695 | |
| 1696 atom = &trak->vmhd_atom_buf; | |
| 1697 atom->temporary = 1; | |
| 1698 atom->pos = atom_header; | |
| 1699 atom->last = atom_header + atom_size; | |
| 1700 | |
| 1701 trak->vmhd_size += atom_size; | |
| 1702 trak->out[NGX_HTTP_MP4_VMHD_ATOM].buf = atom; | |
| 1703 | |
| 1704 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1705 | |
| 1706 return NGX_OK; | |
| 1707 } | |
| 1708 | |
| 1709 | |
| 1710 static ngx_int_t | |
| 1711 ngx_http_mp4_read_smhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1712 { | |
| 1713 u_char *atom_header; | |
| 1714 size_t atom_size; | |
| 1715 ngx_buf_t *atom; | |
| 1716 ngx_http_mp4_trak_t *trak; | |
| 1717 | |
| 1718 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 smhd atom"); | |
| 1719 | |
| 1720 atom_header = ngx_mp4_atom_header(mp4); | |
| 1721 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1722 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1723 ngx_mp4_set_atom_name(atom_header, 's', 'm', 'h', 'd'); | |
| 1724 | |
| 1725 trak = ngx_mp4_last_trak(mp4); | |
| 1726 | |
| 1727 atom = &trak->smhd_atom_buf; | |
| 1728 atom->temporary = 1; | |
| 1729 atom->pos = atom_header; | |
| 1730 atom->last = atom_header + atom_size; | |
| 1731 | |
| 1732 trak->vmhd_size += atom_size; | |
| 1733 trak->out[NGX_HTTP_MP4_SMHD_ATOM].buf = atom; | |
| 1734 | |
| 1735 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1736 | |
| 1737 return NGX_OK; | |
| 1738 } | |
| 1739 | |
| 1740 | |
| 1741 static ngx_int_t | |
| 1742 ngx_http_mp4_read_dinf_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1743 { | |
| 1744 u_char *atom_header; | |
| 1745 size_t atom_size; | |
| 1746 ngx_buf_t *atom; | |
| 1747 ngx_http_mp4_trak_t *trak; | |
| 1748 | |
| 1749 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 dinf atom"); | |
| 1750 | |
| 1751 atom_header = ngx_mp4_atom_header(mp4); | |
| 1752 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1753 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1754 ngx_mp4_set_atom_name(atom_header, 'd', 'i', 'n', 'f'); | |
| 1755 | |
| 1756 trak = ngx_mp4_last_trak(mp4); | |
| 1757 | |
| 1758 atom = &trak->dinf_atom_buf; | |
| 1759 atom->temporary = 1; | |
| 1760 atom->pos = atom_header; | |
| 1761 atom->last = atom_header + atom_size; | |
| 1762 | |
| 1763 trak->dinf_size += atom_size; | |
| 1764 trak->out[NGX_HTTP_MP4_DINF_ATOM].buf = atom; | |
| 1765 | |
| 1766 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1767 | |
| 1768 return NGX_OK; | |
| 1769 } | |
| 1770 | |
| 1771 | |
| 1772 static ngx_int_t | |
| 1773 ngx_http_mp4_read_stbl_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1774 { | |
| 1775 u_char *atom_header; | |
| 1776 ngx_buf_t *atom; | |
| 1777 ngx_http_mp4_trak_t *trak; | |
| 1778 | |
| 1779 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process stbl atom"); | |
| 1780 | |
| 1781 atom_header = ngx_mp4_atom_header(mp4); | |
| 1782 ngx_mp4_set_atom_name(atom_header, 's', 't', 'b', 'l'); | |
| 1783 | |
| 1784 trak = ngx_mp4_last_trak(mp4); | |
| 1785 | |
| 1786 atom = &trak->stbl_atom_buf; | |
| 1787 atom->temporary = 1; | |
| 1788 atom->pos = atom_header; | |
| 1789 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1790 | |
| 1791 trak->out[NGX_HTTP_MP4_STBL_ATOM].buf = atom; | |
| 1792 | |
| 1793 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_stbl_atoms, atom_data_size); | |
| 1794 } | |
| 1795 | |
| 1796 | |
| 1797 static void | |
| 1798 ngx_http_mp4_update_stbl_atom(ngx_http_mp4_file_t *mp4, | |
| 1799 ngx_http_mp4_trak_t *trak) | |
| 1800 { | |
| 1801 ngx_buf_t *atom; | |
| 1802 | |
| 1803 trak->size += sizeof(ngx_mp4_atom_header_t); | |
| 1804 atom = &trak->stbl_atom_buf; | |
| 1805 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1806 } | |
| 1807 | |
| 1808 | |
| 1809 typedef struct { | |
| 1810 u_char size[4]; | |
| 1811 u_char name[4]; | |
| 1812 u_char version[1]; | |
| 1813 u_char flags[3]; | |
| 1814 u_char entries[4]; | |
|
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1815 |
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1816 u_char media_size[4]; |
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1817 u_char media_name[4]; |
| 4085 | 1818 } ngx_mp4_stsd_atom_t; |
| 1819 | |
| 1820 | |
| 1821 static ngx_int_t | |
| 1822 ngx_http_mp4_read_stsd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1823 { | |
| 1824 u_char *atom_header, *atom_table; | |
| 1825 size_t atom_size; | |
| 1826 ngx_buf_t *atom; | |
| 1827 ngx_mp4_stsd_atom_t *stsd_atom; | |
| 1828 ngx_http_mp4_trak_t *trak; | |
| 1829 | |
| 1830 /* sample description atom */ | |
| 1831 | |
| 1832 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsd atom"); | |
| 1833 | |
| 1834 atom_header = ngx_mp4_atom_header(mp4); | |
| 1835 stsd_atom = (ngx_mp4_stsd_atom_t *) atom_header; | |
| 1836 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1837 atom_table = atom_header + atom_size; | |
| 1838 ngx_mp4_set_32value(stsd_atom->size, atom_size); | |
| 1839 ngx_mp4_set_atom_name(stsd_atom, 's', 't', 's', 'd'); | |
| 1840 | |
|
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1841 if (ngx_mp4_atom_data_size(ngx_mp4_stsd_atom_t) > atom_data_size) { |
|
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1842 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1843 "\"%s\" mp4 stsd atom too small", mp4->file.name.data); |
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1844 return NGX_ERROR; |
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1845 } |
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1846 |
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1847 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
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1848 "stsd entries:%uD, media:%*s", |
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1849 ngx_mp4_get_32value(stsd_atom->entries), |
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1850 4, stsd_atom->media_name); |
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1851 |
| 4085 | 1852 trak = ngx_mp4_last_trak(mp4); |
| 1853 | |
| 1854 atom = &trak->stsd_atom_buf; | |
| 1855 atom->temporary = 1; | |
| 1856 atom->pos = atom_header; | |
| 1857 atom->last = atom_table; | |
| 1858 | |
| 1859 trak->out[NGX_HTTP_MP4_STSD_ATOM].buf = atom; | |
| 1860 trak->size += atom_size; | |
| 1861 | |
| 1862 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1863 | |
| 1864 return NGX_OK; | |
| 1865 } | |
| 1866 | |
| 1867 | |
| 1868 typedef struct { | |
| 1869 u_char size[4]; | |
| 1870 u_char name[4]; | |
| 1871 u_char version[1]; | |
| 1872 u_char flags[3]; | |
| 1873 u_char entries[4]; | |
| 1874 } ngx_mp4_stts_atom_t; | |
| 1875 | |
| 1876 typedef struct { | |
| 1877 u_char count[4]; | |
| 1878 u_char duration[4]; | |
| 1879 } ngx_mp4_stts_entry_t; | |
| 1880 | |
| 1881 | |
| 1882 static ngx_int_t | |
| 1883 ngx_http_mp4_read_stts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1884 { | |
| 1885 u_char *atom_header, *atom_table, *atom_end; | |
| 1886 uint32_t entries; | |
| 1887 ngx_buf_t *atom, *data; | |
| 1888 ngx_mp4_stts_atom_t *stts_atom; | |
| 1889 ngx_http_mp4_trak_t *trak; | |
| 1890 | |
| 1891 /* time-to-sample atom */ | |
| 1892 | |
| 1893 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stts atom"); | |
| 1894 | |
| 1895 atom_header = ngx_mp4_atom_header(mp4); | |
| 1896 stts_atom = (ngx_mp4_stts_atom_t *) atom_header; | |
| 1897 ngx_mp4_set_atom_name(stts_atom, 's', 't', 't', 's'); | |
| 1898 | |
|
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1899 if (ngx_mp4_atom_data_size(ngx_mp4_stts_atom_t) > atom_data_size) { |
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1900 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1901 "\"%s\" mp4 stts atom too small", mp4->file.name.data); |
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1902 return NGX_ERROR; |
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1903 } |
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1904 |
| 4085 | 1905 entries = ngx_mp4_get_32value(stts_atom->entries); |
| 1906 | |
| 1907 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 1908 "mp4 time-to-sample entries:%uD", entries); |
| 4085 | 1909 |
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1910 if (ngx_mp4_atom_data_size(ngx_mp4_stts_atom_t) |
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1911 + entries * sizeof(ngx_mp4_stts_entry_t) > atom_data_size) |
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1912 { |
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1913 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1914 "\"%s\" mp4 stts atom too small", mp4->file.name.data); |
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1915 return NGX_ERROR; |
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1916 } |
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1917 |
| 4085 | 1918 atom_table = atom_header + sizeof(ngx_mp4_stts_atom_t); |
| 1919 atom_end = atom_table + entries * sizeof(ngx_mp4_stts_entry_t); | |
| 1920 | |
| 1921 trak = ngx_mp4_last_trak(mp4); | |
| 1922 trak->time_to_sample_entries = entries; | |
| 1923 | |
| 1924 atom = &trak->stts_atom_buf; | |
| 1925 atom->temporary = 1; | |
| 1926 atom->pos = atom_header; | |
| 1927 atom->last = atom_table; | |
| 1928 | |
| 1929 data = &trak->stts_data_buf; | |
| 1930 data->temporary = 1; | |
| 1931 data->pos = atom_table; | |
| 1932 data->last = atom_end; | |
| 1933 | |
| 1934 trak->out[NGX_HTTP_MP4_STTS_ATOM].buf = atom; | |
| 1935 trak->out[NGX_HTTP_MP4_STTS_DATA].buf = data; | |
| 1936 | |
| 1937 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1938 | |
| 1939 return NGX_OK; | |
| 1940 } | |
| 1941 | |
| 1942 | |
| 1943 static ngx_int_t | |
| 1944 ngx_http_mp4_update_stts_atom(ngx_http_mp4_file_t *mp4, | |
| 1945 ngx_http_mp4_trak_t *trak) | |
| 1946 { | |
| 1947 size_t atom_size; | |
| 1948 uint32_t entries, count, duration; | |
| 1949 uint64_t start_time; | |
| 1950 ngx_buf_t *atom, *data; | |
| 1951 ngx_uint_t start_sample; | |
| 1952 ngx_mp4_stts_atom_t *stts_atom; | |
| 1953 ngx_mp4_stts_entry_t *entry, *end; | |
| 1954 | |
| 1955 /* | |
| 1956 * mdia.minf.stbl.stts updating requires trak->timescale | |
| 1957 * from mdia.mdhd atom which may reside after mdia.minf | |
| 1958 */ | |
| 1959 | |
| 1960 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1961 "mp4 stts atom update"); | |
| 1962 | |
| 1963 data = trak->out[NGX_HTTP_MP4_STTS_DATA].buf; | |
| 1964 | |
| 1965 if (data == NULL) { | |
| 1966 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 1967 "no mp4 stts atoms were found in \"%s\"", | |
| 1968 mp4->file.name.data); | |
| 1969 return NGX_ERROR; | |
| 1970 } | |
| 1971 | |
| 1972 entries = trak->time_to_sample_entries; | |
|
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1973 start_time = (uint64_t) mp4->start * trak->timescale / 1000; |
| 4085 | 1974 |
| 1975 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 1976 "time-to-sample start_time:%uL", start_time); |
| 4085 | 1977 |
| 1978 start_sample = 0; | |
| 1979 entry = (ngx_mp4_stts_entry_t *) data->pos; | |
| 1980 end = (ngx_mp4_stts_entry_t *) data->last; | |
| 1981 | |
| 1982 while (entry < end) { | |
| 1983 count = ngx_mp4_get_32value(entry->count); | |
| 1984 duration = ngx_mp4_get_32value(entry->duration); | |
| 1985 | |
| 1986 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1987 "count:%uD, duration:%uD", count, duration); | |
| 1988 | |
| 4306 | 1989 if (start_time < (uint64_t) count * duration) { |
| 4085 | 1990 start_sample += (ngx_uint_t) (start_time / duration); |
| 4578 | 1991 count -= (uint32_t) (start_time / duration); |
| 4085 | 1992 ngx_mp4_set_32value(entry->count, count); |
| 1993 goto found; | |
| 1994 } | |
| 1995 | |
| 1996 start_sample += count; | |
| 1997 start_time -= count * duration; | |
| 1998 entries--; | |
| 1999 entry++; | |
| 2000 } | |
| 2001 | |
| 2002 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 4094 | 2003 "start time is out mp4 stts samples in \"%s\"", |
| 4085 | 2004 mp4->file.name.data); |
| 2005 | |
| 2006 return NGX_ERROR; | |
| 2007 | |
| 2008 found: | |
| 2009 | |
| 2010 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2011 "start_sample:%ui, new count:%uD", start_sample, count); | |
| 2012 | |
| 2013 trak->start_sample = start_sample; | |
| 2014 | |
| 2015 data->pos = (u_char *) entry; | |
| 2016 atom_size = sizeof(ngx_mp4_stts_atom_t) + (data->last - data->pos); | |
| 2017 trak->size += atom_size; | |
| 2018 | |
| 2019 atom = trak->out[NGX_HTTP_MP4_STTS_ATOM].buf; | |
| 2020 stts_atom = (ngx_mp4_stts_atom_t *) atom->pos; | |
| 2021 ngx_mp4_set_32value(stts_atom->size, atom_size); | |
| 2022 ngx_mp4_set_32value(stts_atom->entries, entries); | |
| 2023 | |
| 2024 return NGX_OK; | |
| 2025 } | |
| 2026 | |
| 2027 | |
| 2028 typedef struct { | |
| 2029 u_char size[4]; | |
| 2030 u_char name[4]; | |
| 2031 u_char version[1]; | |
| 2032 u_char flags[3]; | |
| 2033 u_char entries[4]; | |
| 2034 } ngx_http_mp4_stss_atom_t; | |
| 2035 | |
| 2036 | |
| 2037 static ngx_int_t | |
| 2038 ngx_http_mp4_read_stss_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2039 { | |
| 2040 u_char *atom_header, *atom_table, *atom_end; | |
| 2041 uint32_t entries; | |
| 2042 ngx_buf_t *atom, *data; | |
| 2043 ngx_http_mp4_trak_t *trak; | |
| 2044 ngx_http_mp4_stss_atom_t *stss_atom; | |
| 2045 | |
| 2046 /* sync samples atom */ | |
| 2047 | |
| 2048 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stss atom"); | |
| 2049 | |
| 2050 atom_header = ngx_mp4_atom_header(mp4); | |
| 2051 stss_atom = (ngx_http_mp4_stss_atom_t *) atom_header; | |
| 2052 ngx_mp4_set_atom_name(stss_atom, 's', 't', 's', 's'); | |
| 2053 | |
|
4585
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parents:
4579
diff
changeset
|
2054 if (ngx_mp4_atom_data_size(ngx_http_mp4_stss_atom_t) > atom_data_size) { |
|
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Mp4: sanity checks cleanup.
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diff
changeset
|
2055 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2056 "\"%s\" mp4 stss atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
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diff
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|
2057 return NGX_ERROR; |
|
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Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
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diff
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|
2058 } |
|
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diff
changeset
|
2059 |
| 4085 | 2060 entries = ngx_mp4_get_32value(stss_atom->entries); |
| 2061 | |
| 2062 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 2063 "sync sample entries:%uD", entries); |
| 4085 | 2064 |
| 2065 trak = ngx_mp4_last_trak(mp4); | |
| 2066 trak->sync_samples_entries = entries; | |
| 2067 | |
| 2068 atom_table = atom_header + sizeof(ngx_http_mp4_stss_atom_t); | |
| 2069 | |
| 2070 atom = &trak->stss_atom_buf; | |
| 2071 atom->temporary = 1; | |
| 2072 atom->pos = atom_header; | |
| 2073 atom->last = atom_table; | |
| 2074 | |
|
4585
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Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2075 if (ngx_mp4_atom_data_size(ngx_http_mp4_stss_atom_t) |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2076 + entries * sizeof(uint32_t) > atom_data_size) |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2077 { |
| 4085 | 2078 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
|
2079 "\"%s\" mp4 stss atom too small", mp4->file.name.data); |
| 4085 | 2080 return NGX_ERROR; |
| 2081 } | |
| 2082 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
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4579
diff
changeset
|
2083 atom_end = atom_table + entries * sizeof(uint32_t); |
|
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Mp4: sanity checks cleanup.
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|
2084 |
| 4085 | 2085 data = &trak->stss_data_buf; |
| 2086 data->temporary = 1; | |
| 2087 data->pos = atom_table; | |
| 2088 data->last = atom_end; | |
| 2089 | |
| 2090 trak->out[NGX_HTTP_MP4_STSS_ATOM].buf = atom; | |
| 2091 trak->out[NGX_HTTP_MP4_STSS_DATA].buf = data; | |
| 2092 | |
| 2093 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2094 | |
| 2095 return NGX_OK; | |
| 2096 } | |
| 2097 | |
| 2098 | |
| 2099 static ngx_int_t | |
| 2100 ngx_http_mp4_update_stss_atom(ngx_http_mp4_file_t *mp4, | |
| 2101 ngx_http_mp4_trak_t *trak) | |
| 2102 { | |
| 2103 size_t atom_size; | |
| 2104 uint32_t entries, sample, start_sample, *entry, *end; | |
| 2105 ngx_buf_t *atom, *data; | |
| 2106 ngx_http_mp4_stss_atom_t *stss_atom; | |
| 2107 | |
| 2108 /* | |
| 2109 * mdia.minf.stbl.stss updating requires trak->start_sample | |
| 2110 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2111 * atom which may reside after mdia.minf | |
| 2112 */ | |
| 2113 | |
| 2114 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2115 "mp4 stss atom update"); | |
| 2116 | |
| 2117 data = trak->out[NGX_HTTP_MP4_STSS_DATA].buf; | |
| 2118 | |
| 2119 if (data == NULL) { | |
| 2120 return NGX_OK; | |
| 2121 } | |
| 2122 | |
| 2123 /* sync samples starts from 1 */ | |
| 2124 start_sample = trak->start_sample + 1; | |
| 2125 entries = trak->sync_samples_entries; | |
| 2126 | |
| 2127 entry = (uint32_t *) data->pos; | |
| 2128 end = (uint32_t *) data->last; | |
| 2129 | |
| 2130 while (entry < end) { | |
| 2131 sample = ngx_mp4_get_32value(entry); | |
| 2132 | |
| 2133 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2134 "start:%uD, sync:%uD", start_sample, sample); | |
| 2135 | |
| 2136 if (sample >= start_sample) { | |
| 2137 goto found; | |
| 2138 } | |
| 2139 | |
| 2140 entries--; | |
| 2141 entry++; | |
| 2142 } | |
| 2143 | |
| 2144 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2145 "start sample is out of mp4 stss atom in \"%s\"", | |
| 2146 mp4->file.name.data); | |
| 2147 | |
| 2148 return NGX_ERROR; | |
| 2149 | |
| 2150 found: | |
| 2151 | |
| 2152 data->pos = (u_char *) entry; | |
| 2153 | |
| 2154 start_sample = trak->start_sample; | |
| 2155 | |
| 2156 while (entry < end) { | |
| 2157 sample = ngx_mp4_get_32value(entry); | |
| 2158 sample -= start_sample; | |
| 2159 ngx_mp4_set_32value(entry, sample); | |
| 2160 entry++; | |
| 2161 } | |
| 2162 | |
| 2163 atom_size = sizeof(ngx_http_mp4_stss_atom_t) + (data->last - data->pos); | |
| 2164 trak->size += atom_size; | |
| 2165 | |
| 2166 atom = trak->out[NGX_HTTP_MP4_STSS_ATOM].buf; | |
| 2167 stss_atom = (ngx_http_mp4_stss_atom_t *) atom->pos; | |
| 2168 | |
| 2169 ngx_mp4_set_32value(stss_atom->size, atom_size); | |
| 2170 ngx_mp4_set_32value(stss_atom->entries, entries); | |
| 2171 | |
| 2172 return NGX_OK; | |
| 2173 } | |
| 2174 | |
| 2175 | |
| 2176 typedef struct { | |
| 2177 u_char size[4]; | |
| 2178 u_char name[4]; | |
| 2179 u_char version[1]; | |
| 2180 u_char flags[3]; | |
| 2181 u_char entries[4]; | |
| 2182 } ngx_mp4_ctts_atom_t; | |
| 2183 | |
| 2184 typedef struct { | |
| 2185 u_char count[4]; | |
| 2186 u_char offset[4]; | |
| 2187 } ngx_mp4_ctts_entry_t; | |
| 2188 | |
| 2189 | |
| 2190 static ngx_int_t | |
| 2191 ngx_http_mp4_read_ctts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2192 { | |
| 2193 u_char *atom_header, *atom_table, *atom_end; | |
| 2194 uint32_t entries; | |
| 2195 ngx_buf_t *atom, *data; | |
| 2196 ngx_mp4_ctts_atom_t *ctts_atom; | |
| 2197 ngx_http_mp4_trak_t *trak; | |
| 2198 | |
| 2199 /* composition offsets atom */ | |
| 2200 | |
| 2201 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 ctts atom"); | |
| 2202 | |
| 2203 atom_header = ngx_mp4_atom_header(mp4); | |
| 2204 ctts_atom = (ngx_mp4_ctts_atom_t *) atom_header; | |
| 2205 ngx_mp4_set_atom_name(ctts_atom, 'c', 't', 't', 's'); | |
| 2206 | |
|
4585
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parents:
4579
diff
changeset
|
2207 if (ngx_mp4_atom_data_size(ngx_mp4_ctts_atom_t) > atom_data_size) { |
|
3f874d645f45
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parents:
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diff
changeset
|
2208 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2209 "\"%s\" mp4 ctts atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
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diff
changeset
|
2210 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
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diff
changeset
|
2211 } |
|
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diff
changeset
|
2212 |
| 4085 | 2213 entries = ngx_mp4_get_32value(ctts_atom->entries); |
| 2214 | |
| 2215 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 2216 "composition offset entries:%uD", entries); |
| 4085 | 2217 |
| 2218 trak = ngx_mp4_last_trak(mp4); | |
| 2219 trak->composition_offset_entries = entries; | |
| 2220 | |
| 2221 atom_table = atom_header + sizeof(ngx_mp4_ctts_atom_t); | |
| 2222 | |
| 2223 atom = &trak->ctts_atom_buf; | |
| 2224 atom->temporary = 1; | |
| 2225 atom->pos = atom_header; | |
| 2226 atom->last = atom_table; | |
| 2227 | |
|
4585
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Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2228 if (ngx_mp4_atom_data_size(ngx_mp4_ctts_atom_t) |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2229 + entries * sizeof(ngx_mp4_ctts_entry_t) > atom_data_size) |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2230 { |
| 4085 | 2231 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2232 "\"%s\" mp4 ctts atom too small", mp4->file.name.data); |
| 4085 | 2233 return NGX_ERROR; |
| 2234 } | |
| 2235 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2236 atom_end = atom_table + entries * sizeof(ngx_mp4_ctts_entry_t); |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2237 |
| 4085 | 2238 data = &trak->ctts_data_buf; |
| 2239 data->temporary = 1; | |
| 2240 data->pos = atom_table; | |
| 2241 data->last = atom_end; | |
| 2242 | |
| 2243 trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf = atom; | |
| 2244 trak->out[NGX_HTTP_MP4_CTTS_DATA].buf = data; | |
| 2245 | |
| 2246 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2247 | |
| 2248 return NGX_OK; | |
| 2249 } | |
| 2250 | |
| 2251 | |
| 2252 static void | |
| 2253 ngx_http_mp4_update_ctts_atom(ngx_http_mp4_file_t *mp4, | |
| 2254 ngx_http_mp4_trak_t *trak) | |
| 2255 { | |
| 2256 size_t atom_size; | |
| 2257 uint32_t entries, count, start_sample; | |
| 2258 ngx_buf_t *atom, *data; | |
| 2259 ngx_mp4_ctts_atom_t *ctts_atom; | |
| 2260 ngx_mp4_ctts_entry_t *entry, *end; | |
| 2261 | |
| 2262 /* | |
| 2263 * mdia.minf.stbl.ctts updating requires trak->start_sample | |
| 2264 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2265 * atom which may reside after mdia.minf | |
| 2266 */ | |
| 2267 | |
| 2268 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2269 "mp4 ctts atom update"); | |
| 2270 | |
| 2271 data = trak->out[NGX_HTTP_MP4_CTTS_DATA].buf; | |
| 2272 | |
| 2273 if (data == NULL) { | |
| 2274 return; | |
| 2275 } | |
| 2276 | |
| 2277 /* sync samples starts from 1 */ | |
| 2278 start_sample = trak->start_sample + 1; | |
| 2279 entries = trak->composition_offset_entries; | |
| 2280 entry = (ngx_mp4_ctts_entry_t *) data->pos; | |
| 2281 end = (ngx_mp4_ctts_entry_t *) data->last; | |
| 2282 | |
| 2283 while (entry < end) { | |
| 2284 count = ngx_mp4_get_32value(entry->count); | |
| 2285 | |
|
4088
8fe1da7b8386
bugfix of r4086: nginx could not be built without debug log.
Igor Sysoev <igor@sysoev.ru>
parents:
4087
diff
changeset
|
2286 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 2287 "start:%uD, count:%uD, offset:%uD", |
| 2288 start_sample, count, ngx_mp4_get_32value(entry->offset)); | |
| 2289 | |
| 2290 if (start_sample <= count) { | |
| 2291 count -= (start_sample - 1); | |
| 2292 ngx_mp4_set_32value(entry->count, count); | |
| 2293 goto found; | |
| 2294 } | |
| 2295 | |
| 2296 start_sample -= count; | |
| 2297 entries--; | |
| 2298 entry++; | |
| 2299 } | |
| 2300 | |
| 2301 trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf = NULL; | |
| 2302 trak->out[NGX_HTTP_MP4_CTTS_DATA].buf = NULL; | |
| 2303 | |
| 2304 return; | |
| 2305 | |
| 2306 found: | |
| 2307 | |
| 2308 data->pos = (u_char *) entry; | |
| 2309 atom_size = sizeof(ngx_mp4_ctts_atom_t) + (data->last - data->pos); | |
| 2310 trak->size += atom_size; | |
| 2311 | |
| 2312 atom = trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf; | |
| 2313 ctts_atom = (ngx_mp4_ctts_atom_t *) atom->pos; | |
| 2314 | |
| 2315 ngx_mp4_set_32value(ctts_atom->size, atom_size); | |
| 2316 ngx_mp4_set_32value(ctts_atom->entries, entries); | |
| 2317 | |
| 2318 return; | |
| 2319 } | |
| 2320 | |
| 2321 | |
| 2322 typedef struct { | |
| 2323 u_char size[4]; | |
| 2324 u_char name[4]; | |
| 2325 u_char version[1]; | |
| 2326 u_char flags[3]; | |
| 2327 u_char entries[4]; | |
| 2328 } ngx_mp4_stsc_atom_t; | |
| 2329 | |
| 2330 | |
| 2331 static ngx_int_t | |
| 2332 ngx_http_mp4_read_stsc_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2333 { | |
| 2334 u_char *atom_header, *atom_table, *atom_end; | |
| 2335 uint32_t entries; | |
| 2336 ngx_buf_t *atom, *data; | |
| 2337 ngx_mp4_stsc_atom_t *stsc_atom; | |
| 2338 ngx_http_mp4_trak_t *trak; | |
| 2339 | |
| 2340 /* sample-to-chunk atom */ | |
| 2341 | |
| 2342 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsc atom"); | |
| 2343 | |
| 2344 atom_header = ngx_mp4_atom_header(mp4); | |
| 2345 stsc_atom = (ngx_mp4_stsc_atom_t *) atom_header; | |
| 2346 ngx_mp4_set_atom_name(stsc_atom, 's', 't', 's', 'c'); | |
| 2347 | |
|
4585
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4579
diff
changeset
|
2348 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
|
2349 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2350 "\"%s\" mp4 stsc atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
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diff
changeset
|
2351 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
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diff
changeset
|
2352 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2353 |
| 4085 | 2354 entries = ngx_mp4_get_32value(stsc_atom->entries); |
| 2355 | |
| 2356 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 2357 "sample-to-chunk entries:%uD", entries); |
| 4085 | 2358 |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2359 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
|
2360 + entries * sizeof(ngx_mp4_stsc_entry_t) > atom_data_size) |
|
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2361 { |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2362 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2363 "\"%s\" mp4 stsc atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2364 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2365 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2366 |
| 4085 | 2367 atom_table = atom_header + sizeof(ngx_mp4_stsc_atom_t); |
| 2368 atom_end = atom_table + entries * sizeof(ngx_mp4_stsc_entry_t); | |
| 2369 | |
| 2370 trak = ngx_mp4_last_trak(mp4); | |
| 2371 trak->sample_to_chunk_entries = entries; | |
| 2372 | |
| 2373 atom = &trak->stsc_atom_buf; | |
| 2374 atom->temporary = 1; | |
| 2375 atom->pos = atom_header; | |
| 2376 atom->last = atom_table; | |
| 2377 | |
| 2378 data = &trak->stsc_data_buf; | |
| 2379 data->temporary = 1; | |
| 2380 data->pos = atom_table; | |
| 2381 data->last = atom_end; | |
| 2382 | |
| 2383 trak->out[NGX_HTTP_MP4_STSC_ATOM].buf = atom; | |
| 2384 trak->out[NGX_HTTP_MP4_STSC_DATA].buf = data; | |
| 2385 | |
| 2386 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2387 | |
| 2388 return NGX_OK; | |
| 2389 } | |
| 2390 | |
| 2391 | |
| 2392 static ngx_int_t | |
| 2393 ngx_http_mp4_update_stsc_atom(ngx_http_mp4_file_t *mp4, | |
| 2394 ngx_http_mp4_trak_t *trak) | |
| 2395 { | |
| 2396 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
|
2397 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
|
2398 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
|
2399 ngx_buf_t *atom, *data, *buf; |
| 4085 | 2400 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
|
2401 ngx_mp4_stsc_entry_t *entry, *first, *end; |
| 4085 | 2402 |
| 2403 /* | |
| 2404 * mdia.minf.stbl.stsc updating requires trak->start_sample | |
| 2405 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2406 * atom which may reside after mdia.minf | |
| 2407 */ | |
| 2408 | |
| 2409 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2410 "mp4 stsc atom update"); | |
| 2411 | |
| 2412 data = trak->out[NGX_HTTP_MP4_STSC_DATA].buf; | |
| 2413 | |
| 2414 if (data == NULL) { | |
| 2415 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2416 "no mp4 stsc atoms were found in \"%s\"", | |
| 2417 mp4->file.name.data); | |
| 2418 return NGX_ERROR; | |
| 2419 } | |
| 2420 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2421 if (trak->sample_to_chunk_entries == 0) { |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2422 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2423 "zero number of entries in stsc atom in \"%s\"", |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2424 mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2425 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2426 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2427 |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2428 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
|
2429 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
|
2430 |
| 4085 | 2431 entry = (ngx_mp4_stsc_entry_t *) data->pos; |
| 2432 end = (ngx_mp4_stsc_entry_t *) data->last; | |
| 2433 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2434 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
|
2435 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
|
2436 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
|
2437 entry++; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2438 |
| 4085 | 2439 while (entry < end) { |
| 2440 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2441 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
|
2442 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2443 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
|
2444 "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
|
2445 "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
|
2446 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
|
2447 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2448 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
|
2449 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2450 if (start_sample <= n) { |
| 4085 | 2451 goto found; |
| 2452 } | |
| 2453 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2454 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
|
2455 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2456 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
|
2457 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
|
2458 id = ngx_mp4_get_32value(entry->id); |
| 4085 | 2459 entries--; |
| 2460 entry++; | |
| 2461 } | |
| 2462 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2463 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
|
2464 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2465 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
|
2466 "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
|
2467 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
|
2468 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2469 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
|
2470 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2471 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
|
2472 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
|
2473 "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
|
2474 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
|
2475 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
|
2476 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2477 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2478 found: |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2479 |
| 4085 | 2480 entries++; |
| 2481 entry--; | |
| 2482 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2483 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
|
2484 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
|
2485 "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
|
2486 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
|
2487 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
|
2488 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2489 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2490 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
|
2491 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2492 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
|
2493 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
|
2494 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2495 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
|
2496 "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
|
2497 trak->start_chunk, trak->chunk_samples); |
| 4085 | 2498 |
| 2499 data->pos = (u_char *) entry; | |
| 2500 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
|
2501 |
|
4382
b4d54fa76853
Fixed mp4 if first entry in stsc was skipped (ticket #72).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4306
diff
changeset
|
2502 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
|
2503 |
|
4687
7f50a4063100
Mp4: fixed non-keyframe seeks in some cases (ticket #175).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
2504 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
|
2505 |
|
7f50a4063100
Mp4: fixed non-keyframe seeks in some cases (ticket #175).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
2506 /* 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
|
2507 |
|
7f50a4063100
Mp4: fixed non-keyframe seeks in some cases (ticket #175).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
2508 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
|
2509 |
|
7f50a4063100
Mp4: fixed non-keyframe seeks in some cases (ticket #175).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
2510 } 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
|
2511 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2512 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
|
2513 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
|
2514 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
|
2515 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
|
2516 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2517 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
|
2518 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
|
2519 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
|
2520 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
|
2521 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2522 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
|
2523 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2524 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
|
2525 |
|
4687
7f50a4063100
Mp4: fixed non-keyframe seeks in some cases (ticket #175).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4611
diff
changeset
|
2526 entries++; |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2527 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
|
2528 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2529 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2530 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
|
2531 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
|
2532 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
|
2533 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
|
2534 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2535 |
| 4085 | 2536 trak->size += atom_size; |
| 2537 | |
| 2538 atom = trak->out[NGX_HTTP_MP4_STSC_ATOM].buf; | |
| 2539 stsc_atom = (ngx_mp4_stsc_atom_t *) atom->pos; | |
| 2540 | |
| 2541 ngx_mp4_set_32value(stsc_atom->size, atom_size); | |
| 2542 ngx_mp4_set_32value(stsc_atom->entries, entries); | |
| 2543 | |
| 2544 return NGX_OK; | |
| 2545 } | |
| 2546 | |
| 2547 | |
| 2548 typedef struct { | |
| 2549 u_char size[4]; | |
| 2550 u_char name[4]; | |
| 2551 u_char version[1]; | |
| 2552 u_char flags[3]; | |
| 2553 u_char uniform_size[4]; | |
| 2554 u_char entries[4]; | |
| 2555 } ngx_mp4_stsz_atom_t; | |
| 2556 | |
| 2557 | |
| 2558 static ngx_int_t | |
| 2559 ngx_http_mp4_read_stsz_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2560 { | |
| 2561 u_char *atom_header, *atom_table, *atom_end; | |
| 2562 size_t atom_size; | |
| 2563 uint32_t entries, size; | |
| 2564 ngx_buf_t *atom, *data; | |
| 2565 ngx_mp4_stsz_atom_t *stsz_atom; | |
| 2566 ngx_http_mp4_trak_t *trak; | |
| 2567 | |
| 2568 /* sample sizes atom */ | |
| 2569 | |
| 2570 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsz atom"); | |
| 2571 | |
| 2572 atom_header = ngx_mp4_atom_header(mp4); | |
| 2573 stsz_atom = (ngx_mp4_stsz_atom_t *) atom_header; | |
| 2574 ngx_mp4_set_atom_name(stsz_atom, 's', 't', 's', 'z'); | |
| 2575 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2576 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:
4579
diff
changeset
|
2577 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2578 "\"%s\" mp4 stsz atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2579 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2580 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2581 |
| 4085 | 2582 size = ngx_mp4_get_32value(stsz_atom->uniform_size); |
| 2583 entries = ngx_mp4_get_32value(stsz_atom->entries); | |
| 2584 | |
| 2585 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2586 "sample uniform size:%uD, entries:%uD", size, entries); | |
| 2587 | |
| 2588 trak = ngx_mp4_last_trak(mp4); | |
| 2589 trak->sample_sizes_entries = entries; | |
| 2590 | |
| 2591 atom_table = atom_header + sizeof(ngx_mp4_stsz_atom_t); | |
| 2592 | |
| 2593 atom = &trak->stsz_atom_buf; | |
| 2594 atom->temporary = 1; | |
| 2595 atom->pos = atom_header; | |
| 2596 atom->last = atom_table; | |
| 2597 | |
| 2598 trak->out[NGX_HTTP_MP4_STSZ_ATOM].buf = atom; | |
| 2599 | |
| 2600 if (size == 0) { | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2601 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
|
2602 + entries * sizeof(uint32_t) > atom_data_size) |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2603 { |
| 4085 | 2604 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
|
2605 "\"%s\" mp4 stsz atom too small", |
| 4085 | 2606 mp4->file.name.data); |
| 2607 return NGX_ERROR; | |
| 2608 } | |
| 2609 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2610 atom_end = atom_table + entries * sizeof(uint32_t); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2611 |
| 4085 | 2612 data = &trak->stsz_data_buf; |
| 2613 data->temporary = 1; | |
| 2614 data->pos = atom_table; | |
| 2615 data->last = atom_end; | |
| 2616 | |
| 2617 trak->out[NGX_HTTP_MP4_STSZ_DATA].buf = data; | |
| 2618 | |
| 2619 } else { | |
| 2620 /* 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
|
2621 /* TODO : chunk samples */ |
| 4085 | 2622 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; |
| 2623 ngx_mp4_set_32value(atom_header, atom_size); | |
| 2624 trak->size += atom_size; | |
| 2625 } | |
| 2626 | |
| 2627 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2628 | |
| 2629 return NGX_OK; | |
| 2630 } | |
| 2631 | |
| 2632 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2633 static ngx_int_t |
| 4085 | 2634 ngx_http_mp4_update_stsz_atom(ngx_http_mp4_file_t *mp4, |
| 2635 ngx_http_mp4_trak_t *trak) | |
| 2636 { | |
| 2637 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
|
2638 uint32_t *pos, *end; |
| 4085 | 2639 ngx_buf_t *atom, *data; |
| 2640 ngx_mp4_stsz_atom_t *stsz_atom; | |
| 2641 | |
| 2642 /* | |
| 2643 * mdia.minf.stbl.stsz updating requires trak->start_sample | |
| 2644 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2645 * atom which may reside after mdia.minf | |
| 2646 */ | |
| 2647 | |
| 2648 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2649 "mp4 stsz atom update"); | |
| 2650 | |
| 2651 data = trak->out[NGX_HTTP_MP4_STSZ_DATA].buf; | |
| 2652 | |
| 2653 if (data) { | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2654 if (trak->start_sample > trak->sample_sizes_entries) { |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2655 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2656 "start time is out mp4 stsz samples in \"%s\"", |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2657 mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2658 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2659 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2660 |
| 4085 | 2661 data->pos += trak->start_sample * sizeof(uint32_t); |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2662 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
|
2663 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2664 for (pos = end - trak->chunk_samples; pos < end; pos++) { |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2665 trak->chunk_samples_size += ngx_mp4_get_32value(pos); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2666 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2667 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2668 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4112 | 2669 "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
|
2670 |
| 4085 | 2671 atom_size = sizeof(ngx_mp4_stsz_atom_t) + (data->last - data->pos); |
| 2672 trak->size += atom_size; | |
| 2673 | |
| 2674 atom = trak->out[NGX_HTTP_MP4_STSZ_ATOM].buf; | |
| 2675 stsz_atom = (ngx_mp4_stsz_atom_t *) atom->pos; | |
| 2676 | |
| 2677 ngx_mp4_set_32value(stsz_atom->size, atom_size); | |
| 2678 ngx_mp4_set_32value(stsz_atom->entries, | |
| 2679 trak->sample_sizes_entries - trak->start_sample); | |
| 2680 } | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2681 |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2682 return NGX_OK; |
| 4085 | 2683 } |
| 2684 | |
| 2685 | |
| 2686 typedef struct { | |
| 2687 u_char size[4]; | |
| 2688 u_char name[4]; | |
| 2689 u_char version[1]; | |
| 2690 u_char flags[3]; | |
| 2691 u_char entries[4]; | |
| 2692 } ngx_mp4_stco_atom_t; | |
| 2693 | |
| 2694 | |
| 2695 static ngx_int_t | |
| 2696 ngx_http_mp4_read_stco_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2697 { | |
| 2698 u_char *atom_header, *atom_table, *atom_end; | |
| 2699 uint32_t entries; | |
| 2700 ngx_buf_t *atom, *data; | |
| 2701 ngx_mp4_stco_atom_t *stco_atom; | |
| 2702 ngx_http_mp4_trak_t *trak; | |
| 2703 | |
| 2704 /* chunk offsets atom */ | |
| 2705 | |
| 2706 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stco atom"); | |
| 2707 | |
| 2708 atom_header = ngx_mp4_atom_header(mp4); | |
| 2709 stco_atom = (ngx_mp4_stco_atom_t *) atom_header; | |
| 2710 ngx_mp4_set_atom_name(stco_atom, 's', 't', 'c', 'o'); | |
| 2711 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2712 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
|
2713 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2714 "\"%s\" mp4 stco atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2715 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2716 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2717 |
| 4085 | 2718 entries = ngx_mp4_get_32value(stco_atom->entries); |
| 2719 | |
| 2720 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "chunks:%uD", entries); | |
| 2721 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2722 if (ngx_mp4_atom_data_size(ngx_mp4_stco_atom_t) |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2723 + entries * sizeof(uint32_t) > atom_data_size) |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2724 { |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2725 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2726 "\"%s\" mp4 stco atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2727 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2728 } |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2729 |
| 4085 | 2730 atom_table = atom_header + sizeof(ngx_mp4_stco_atom_t); |
| 2731 atom_end = atom_table + entries * sizeof(uint32_t); | |
| 2732 | |
| 2733 trak = ngx_mp4_last_trak(mp4); | |
| 2734 trak->chunks = entries; | |
| 2735 | |
| 4107 | 2736 atom = &trak->stco_atom_buf; |
| 4085 | 2737 atom->temporary = 1; |
| 2738 atom->pos = atom_header; | |
| 2739 atom->last = atom_table; | |
| 2740 | |
| 4107 | 2741 data = &trak->stco_data_buf; |
| 4085 | 2742 data->temporary = 1; |
| 2743 data->pos = atom_table; | |
| 2744 data->last = atom_end; | |
| 2745 | |
| 2746 trak->out[NGX_HTTP_MP4_STCO_ATOM].buf = atom; | |
| 2747 trak->out[NGX_HTTP_MP4_STCO_DATA].buf = data; | |
| 2748 | |
| 2749 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2750 | |
| 2751 return NGX_OK; | |
| 2752 } | |
| 2753 | |
| 2754 | |
| 2755 static ngx_int_t | |
| 2756 ngx_http_mp4_update_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 2757 ngx_http_mp4_trak_t *trak) | |
| 2758 { | |
| 2759 size_t atom_size; | |
| 2760 ngx_buf_t *atom, *data; | |
| 2761 ngx_mp4_stco_atom_t *stco_atom; | |
| 2762 | |
| 2763 /* | |
| 2764 * mdia.minf.stbl.stco updating requires trak->start_chunk | |
| 2765 * from mdia.minf.stbl.stsc which depends on value from mdia.mdhd | |
| 2766 * atom which may reside after mdia.minf | |
| 2767 */ | |
| 2768 | |
| 2769 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2770 "mp4 stco atom update"); | |
| 2771 | |
| 2772 data = trak->out[NGX_HTTP_MP4_STCO_DATA].buf; | |
| 2773 | |
| 2774 if (data == NULL) { | |
| 2775 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2776 "no mp4 stco atoms were found in \"%s\"", | |
| 2777 mp4->file.name.data); | |
| 2778 return NGX_ERROR; | |
| 2779 } | |
| 2780 | |
|
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2781 if (trak->start_chunk > trak->chunks) { |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2782 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2783 "start time is out mp4 stco chunks in \"%s\"", |
|
3f874d645f45
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diff
changeset
|
2784 mp4->file.name.data); |
|
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diff
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|
2785 return NGX_ERROR; |
|
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|
2786 } |
|
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changeset
|
2787 |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2788 data->pos += trak->start_chunk * sizeof(uint32_t); |
| 4085 | 2789 atom_size = sizeof(ngx_mp4_stco_atom_t) + (data->last - data->pos); |
| 2790 trak->size += atom_size; | |
| 2791 | |
| 2792 trak->start_offset = ngx_mp4_get_32value(data->pos); | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
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parents:
4096
diff
changeset
|
2793 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
|
2794 ngx_mp4_set_32value(data->pos, trak->start_offset); |
| 4085 | 2795 |
| 2796 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2797 "start chunk offset:%uD", trak->start_offset); | |
| 2798 | |
| 2799 atom = trak->out[NGX_HTTP_MP4_STCO_ATOM].buf; | |
| 2800 stco_atom = (ngx_mp4_stco_atom_t *) atom->pos; | |
| 2801 | |
| 2802 ngx_mp4_set_32value(stco_atom->size, atom_size); | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
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parents:
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diff
changeset
|
2803 ngx_mp4_set_32value(stco_atom->entries, trak->chunks - trak->start_chunk); |
| 4085 | 2804 |
| 2805 return NGX_OK; | |
| 2806 } | |
| 2807 | |
| 2808 | |
| 2809 static void | |
| 2810 ngx_http_mp4_adjust_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 2811 ngx_http_mp4_trak_t *trak, int32_t adjustment) | |
| 2812 { | |
| 2813 uint32_t offset, *entry, *end; | |
| 2814 ngx_buf_t *data; | |
| 2815 | |
| 2816 /* | |
| 2817 * moov.trak.mdia.minf.stbl.stco adjustment requires | |
| 2818 * minimal start offset of all traks and new moov atom size | |
| 2819 */ | |
| 2820 | |
| 2821 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2822 "mp4 stco atom adjustment"); | |
| 2823 | |
| 2824 data = trak->out[NGX_HTTP_MP4_STCO_DATA].buf; | |
| 2825 entry = (uint32_t *) data->pos; | |
| 2826 end = (uint32_t *) data->last; | |
| 2827 | |
| 2828 while (entry < end) { | |
| 2829 offset = ngx_mp4_get_32value(entry); | |
| 2830 offset += adjustment; | |
| 2831 ngx_mp4_set_32value(entry, offset); | |
| 2832 entry++; | |
| 2833 } | |
| 2834 } | |
| 2835 | |
| 2836 | |
| 4112 | 2837 typedef struct { |
| 2838 u_char size[4]; | |
| 2839 u_char name[4]; | |
| 2840 u_char version[1]; | |
| 2841 u_char flags[3]; | |
| 2842 u_char entries[4]; | |
| 2843 } ngx_mp4_co64_atom_t; | |
| 2844 | |
| 2845 | |
| 2846 static ngx_int_t | |
| 2847 ngx_http_mp4_read_co64_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2848 { | |
| 2849 u_char *atom_header, *atom_table, *atom_end; | |
| 2850 uint32_t entries; | |
| 2851 ngx_buf_t *atom, *data; | |
| 2852 ngx_mp4_co64_atom_t *co64_atom; | |
| 2853 ngx_http_mp4_trak_t *trak; | |
| 2854 | |
| 2855 /* chunk offsets atom */ | |
| 2856 | |
| 2857 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 co64 atom"); | |
| 2858 | |
| 2859 atom_header = ngx_mp4_atom_header(mp4); | |
| 2860 co64_atom = (ngx_mp4_co64_atom_t *) atom_header; | |
| 2861 ngx_mp4_set_atom_name(co64_atom, 'c', 'o', '6', '4'); | |
| 2862 | |
|
4585
3f874d645f45
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parents:
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diff
changeset
|
2863 if (ngx_mp4_atom_data_size(ngx_mp4_co64_atom_t) > atom_data_size) { |
|
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|
2864 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
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diff
changeset
|
2865 "\"%s\" mp4 co64 atom too small", mp4->file.name.data); |
|
3f874d645f45
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parents:
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diff
changeset
|
2866 return NGX_ERROR; |
|
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
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|
2867 } |
|
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parents:
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|
2868 |
| 4112 | 2869 entries = ngx_mp4_get_32value(co64_atom->entries); |
| 2870 | |
| 2871 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "chunks:%uD", entries); | |
| 2872 | |
|
4585
3f874d645f45
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parents:
4579
diff
changeset
|
2873 if (ngx_mp4_atom_data_size(ngx_mp4_co64_atom_t) |
|
3f874d645f45
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parents:
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diff
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|
2874 + entries * sizeof(uint64_t) > atom_data_size) |
|
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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|
2875 { |
|
3f874d645f45
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changeset
|
2876 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2877 "\"%s\" mp4 co64 atom too small", mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2878 return NGX_ERROR; |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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|
2879 } |
|
3f874d645f45
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|
2880 |
| 4112 | 2881 atom_table = atom_header + sizeof(ngx_mp4_co64_atom_t); |
| 2882 atom_end = atom_table + entries * sizeof(uint64_t); | |
| 2883 | |
| 2884 trak = ngx_mp4_last_trak(mp4); | |
| 2885 trak->chunks = entries; | |
| 2886 | |
| 2887 atom = &trak->co64_atom_buf; | |
| 2888 atom->temporary = 1; | |
| 2889 atom->pos = atom_header; | |
| 2890 atom->last = atom_table; | |
| 2891 | |
| 2892 data = &trak->co64_data_buf; | |
| 2893 data->temporary = 1; | |
| 2894 data->pos = atom_table; | |
| 2895 data->last = atom_end; | |
| 2896 | |
| 2897 trak->out[NGX_HTTP_MP4_CO64_ATOM].buf = atom; | |
| 2898 trak->out[NGX_HTTP_MP4_CO64_DATA].buf = data; | |
| 2899 | |
| 2900 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2901 | |
| 2902 return NGX_OK; | |
| 2903 } | |
| 2904 | |
| 2905 | |
| 2906 static ngx_int_t | |
| 2907 ngx_http_mp4_update_co64_atom(ngx_http_mp4_file_t *mp4, | |
| 2908 ngx_http_mp4_trak_t *trak) | |
| 2909 { | |
| 2910 size_t atom_size; | |
| 2911 ngx_buf_t *atom, *data; | |
| 2912 ngx_mp4_co64_atom_t *co64_atom; | |
| 2913 | |
| 2914 /* | |
| 2915 * mdia.minf.stbl.co64 updating requires trak->start_chunk | |
| 2916 * from mdia.minf.stbl.stsc which depends on value from mdia.mdhd | |
| 2917 * atom which may reside after mdia.minf | |
| 2918 */ | |
| 2919 | |
| 2920 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2921 "mp4 co64 atom update"); | |
| 2922 | |
| 2923 data = trak->out[NGX_HTTP_MP4_CO64_DATA].buf; | |
| 2924 | |
| 2925 if (data == NULL) { | |
| 2926 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2927 "no mp4 co64 atoms were found in \"%s\"", | |
| 2928 mp4->file.name.data); | |
| 2929 return NGX_ERROR; | |
| 2930 } | |
| 2931 | |
|
4585
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diff
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|
2932 if (trak->start_chunk > trak->chunks) { |
|
3f874d645f45
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4579
diff
changeset
|
2933 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
3f874d645f45
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parents:
4579
diff
changeset
|
2934 "start time is out mp4 co64 chunks in \"%s\"", |
|
3f874d645f45
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diff
changeset
|
2935 mp4->file.name.data); |
|
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
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diff
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|
2936 return NGX_ERROR; |
|
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
2937 } |
|
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changeset
|
2938 |
| 4112 | 2939 data->pos += trak->start_chunk * sizeof(uint64_t); |
| 2940 atom_size = sizeof(ngx_mp4_co64_atom_t) + (data->last - data->pos); | |
| 2941 trak->size += atom_size; | |
| 2942 | |
| 2943 trak->start_offset = ngx_mp4_get_64value(data->pos); | |
| 2944 trak->start_offset += trak->chunk_samples_size; | |
| 2945 ngx_mp4_set_64value(data->pos, trak->start_offset); | |
| 2946 | |
| 2947 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2948 "start chunk offset:%uL", trak->start_offset); | |
| 2949 | |
| 2950 atom = trak->out[NGX_HTTP_MP4_CO64_ATOM].buf; | |
| 2951 co64_atom = (ngx_mp4_co64_atom_t *) atom->pos; | |
| 2952 | |
| 2953 ngx_mp4_set_32value(co64_atom->size, atom_size); | |
| 2954 ngx_mp4_set_32value(co64_atom->entries, trak->chunks - trak->start_chunk); | |
| 2955 | |
| 2956 return NGX_OK; | |
| 2957 } | |
| 2958 | |
| 2959 | |
| 2960 static void | |
| 2961 ngx_http_mp4_adjust_co64_atom(ngx_http_mp4_file_t *mp4, | |
| 2962 ngx_http_mp4_trak_t *trak, off_t adjustment) | |
| 2963 { | |
| 2964 uint64_t offset, *entry, *end; | |
| 2965 ngx_buf_t *data; | |
| 2966 | |
| 2967 /* | |
| 2968 * moov.trak.mdia.minf.stbl.co64 adjustment requires | |
| 2969 * minimal start offset of all traks and new moov atom size | |
| 2970 */ | |
| 2971 | |
| 2972 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2973 "mp4 co64 atom adjustment"); | |
| 2974 | |
| 2975 data = trak->out[NGX_HTTP_MP4_CO64_DATA].buf; | |
| 2976 entry = (uint64_t *) data->pos; | |
| 2977 end = (uint64_t *) data->last; | |
| 2978 | |
| 2979 while (entry < end) { | |
| 2980 offset = ngx_mp4_get_64value(entry); | |
| 2981 offset += adjustment; | |
| 2982 ngx_mp4_set_64value(entry, offset); | |
| 2983 entry++; | |
| 2984 } | |
| 2985 } | |
| 2986 | |
| 2987 | |
| 4085 | 2988 static char * |
| 2989 ngx_http_mp4(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 2990 { | |
| 2991 ngx_http_core_loc_conf_t *clcf; | |
| 2992 | |
| 2993 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 2994 clcf->handler = ngx_http_mp4_handler; | |
| 2995 | |
| 2996 return NGX_CONF_OK; | |
| 2997 } | |
| 2998 | |
| 2999 | |
| 3000 static void * | |
| 3001 ngx_http_mp4_create_conf(ngx_conf_t *cf) | |
| 3002 { | |
| 3003 ngx_http_mp4_conf_t *conf; | |
| 3004 | |
| 3005 conf = ngx_palloc(cf->pool, sizeof(ngx_http_mp4_conf_t)); | |
| 3006 if (conf == NULL) { | |
| 3007 return NULL; | |
| 3008 } | |
| 3009 | |
| 3010 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
|
3011 conf->max_buffer_size = NGX_CONF_UNSET_SIZE; |
| 4085 | 3012 |
| 3013 return conf; | |
| 3014 } | |
| 3015 | |
| 3016 | |
| 3017 static char * | |
| 3018 ngx_http_mp4_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 3019 { | |
| 3020 ngx_http_mp4_conf_t *prev = parent; | |
| 3021 ngx_http_mp4_conf_t *conf = child; | |
| 3022 | |
| 3023 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
|
3024 ngx_conf_merge_size_value(conf->max_buffer_size, prev->max_buffer_size, |
| 4085 | 3025 10 * 1024 * 1024); |
| 3026 | |
| 3027 return NGX_CONF_OK; | |
| 3028 } |