Mercurial > hg > nginx
annotate src/http/modules/ngx_http_mp4_module.c @ 4098:a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Wed, 14 Sep 2011 05:16:20 +0000 |
| parents | f9a1646b9611 |
| children | 9ee6944590c0 |
| rev | line source |
|---|---|
| 4085 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 #include <ngx_config.h> | |
| 7 #include <ngx_core.h> | |
| 8 #include <ngx_http.h> | |
| 9 | |
| 10 | |
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11 #define NGX_HTTP_MP4_TRAK_ATOM 0 |
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12 #define NGX_HTTP_MP4_TKHD_ATOM 1 |
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13 #define NGX_HTTP_MP4_MDIA_ATOM 2 |
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14 #define NGX_HTTP_MP4_MDHD_ATOM 3 |
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15 #define NGX_HTTP_MP4_HDLR_ATOM 4 |
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16 #define NGX_HTTP_MP4_MINF_ATOM 5 |
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17 #define NGX_HTTP_MP4_VMHD_ATOM 6 |
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18 #define NGX_HTTP_MP4_SMHD_ATOM 7 |
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19 #define NGX_HTTP_MP4_DINF_ATOM 8 |
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20 #define NGX_HTTP_MP4_STBL_ATOM 9 |
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21 #define NGX_HTTP_MP4_STSD_ATOM 10 |
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22 #define NGX_HTTP_MP4_STTS_ATOM 11 |
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23 #define NGX_HTTP_MP4_STTS_DATA 12 |
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24 #define NGX_HTTP_MP4_STSS_ATOM 13 |
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25 #define NGX_HTTP_MP4_STSS_DATA 14 |
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26 #define NGX_HTTP_MP4_CTTS_ATOM 15 |
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27 #define NGX_HTTP_MP4_CTTS_DATA 16 |
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28 #define NGX_HTTP_MP4_STSC_ATOM 17 |
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29 #define NGX_HTTP_MP4_STSC_CHUNK 18 |
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30 #define NGX_HTTP_MP4_STSC_DATA 19 |
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31 #define NGX_HTTP_MP4_STSZ_ATOM 20 |
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32 #define NGX_HTTP_MP4_STSZ_DATA 21 |
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33 #define NGX_HTTP_MP4_STCO_ATOM 22 |
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34 #define NGX_HTTP_MP4_STCO_DATA 23 |
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35 |
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36 #define NGX_HTTP_MP4_LAST_ATOM NGX_HTTP_MP4_STCO_DATA |
| 4085 | 37 |
| 38 | |
| 39 typedef struct { | |
| 40 size_t buffer_size; | |
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41 size_t max_buffer_size; |
| 4085 | 42 } ngx_http_mp4_conf_t; |
| 43 | |
| 44 | |
| 45 typedef struct { | |
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46 u_char chunk[4]; |
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47 u_char samples[4]; |
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48 u_char id[4]; |
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49 } ngx_mp4_stsc_entry_t; |
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50 |
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51 |
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52 typedef struct { |
| 4085 | 53 uint32_t timescale; |
| 54 uint32_t time_to_sample_entries; | |
| 55 uint32_t sample_to_chunk_entries; | |
| 56 uint32_t sync_samples_entries; | |
| 57 uint32_t composition_offset_entries; | |
| 58 uint32_t sample_sizes_entries; | |
| 59 uint32_t chunks; | |
| 60 | |
| 61 ngx_uint_t start_sample; | |
| 62 ngx_uint_t start_chunk; | |
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63 ngx_uint_t chunk_samples; |
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64 ngx_uint_t chunk_samples_size; |
| 4085 | 65 off_t start_offset; |
| 66 | |
| 67 size_t tkhd_size; | |
| 68 size_t mdhd_size; | |
| 69 size_t hdlr_size; | |
| 70 size_t vmhd_size; | |
| 71 size_t smhd_size; | |
| 72 size_t dinf_size; | |
| 73 size_t size; | |
| 74 | |
| 75 ngx_chain_t out[NGX_HTTP_MP4_LAST_ATOM + 1]; | |
| 76 | |
| 77 ngx_buf_t trak_atom_buf; | |
| 78 ngx_buf_t tkhd_atom_buf; | |
| 79 ngx_buf_t mdia_atom_buf; | |
| 80 ngx_buf_t mdhd_atom_buf; | |
| 81 ngx_buf_t hdlr_atom_buf; | |
| 82 ngx_buf_t minf_atom_buf; | |
| 83 ngx_buf_t vmhd_atom_buf; | |
| 84 ngx_buf_t smhd_atom_buf; | |
| 85 ngx_buf_t dinf_atom_buf; | |
| 86 ngx_buf_t stbl_atom_buf; | |
| 87 ngx_buf_t stsd_atom_buf; | |
| 88 ngx_buf_t stts_atom_buf; | |
| 89 ngx_buf_t stts_data_buf; | |
| 90 ngx_buf_t stss_atom_buf; | |
| 91 ngx_buf_t stss_data_buf; | |
| 92 ngx_buf_t ctts_atom_buf; | |
| 93 ngx_buf_t ctts_data_buf; | |
| 94 ngx_buf_t stsc_atom_buf; | |
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95 ngx_buf_t stsc_chunk_buf; |
| 4085 | 96 ngx_buf_t stsc_data_buf; |
| 97 ngx_buf_t stsz_atom_buf; | |
| 98 ngx_buf_t stsz_data_buf; | |
| 99 ngx_buf_t tsco_atom_buf; | |
| 100 ngx_buf_t tsco_data_buf; | |
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101 |
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102 ngx_mp4_stsc_entry_t stsc_chunk_entry; |
| 4085 | 103 } ngx_http_mp4_trak_t; |
| 104 | |
| 105 | |
| 106 typedef struct { | |
| 107 ngx_file_t file; | |
| 108 | |
| 109 u_char *buffer; | |
| 110 u_char *buffer_start; | |
| 111 u_char *buffer_pos; | |
| 112 u_char *buffer_end; | |
| 113 size_t buffer_size; | |
| 114 | |
| 115 off_t offset; | |
| 116 off_t end; | |
| 117 off_t content_length; | |
| 118 ngx_uint_t start; | |
| 119 uint32_t timescale; | |
| 120 ngx_http_request_t *request; | |
| 121 ngx_array_t trak; | |
| 122 ngx_http_mp4_trak_t traks[2]; | |
| 123 | |
| 124 size_t ftyp_size; | |
| 125 size_t moov_size; | |
| 126 | |
| 127 ngx_chain_t *out; | |
| 128 ngx_chain_t ftyp_atom; | |
| 129 ngx_chain_t moov_atom; | |
| 130 ngx_chain_t mvhd_atom; | |
| 131 ngx_chain_t mdat_atom; | |
| 132 ngx_chain_t mdat_data; | |
| 133 | |
| 134 ngx_buf_t ftyp_atom_buf; | |
| 135 ngx_buf_t moov_atom_buf; | |
| 136 ngx_buf_t mvhd_atom_buf; | |
| 137 ngx_buf_t mdat_atom_buf; | |
| 138 ngx_buf_t mdat_data_buf; | |
| 139 | |
| 140 u_char moov_atom_header[8]; | |
| 141 u_char mdat_atom_header[16]; | |
| 142 } ngx_http_mp4_file_t; | |
| 143 | |
| 144 | |
| 145 typedef struct { | |
| 146 char *name; | |
| 147 ngx_int_t (*handler)(ngx_http_mp4_file_t *mp4, | |
| 148 uint64_t atom_data_size); | |
| 149 } ngx_http_mp4_atom_handler_t; | |
| 150 | |
| 151 | |
| 152 #define ngx_mp4_atom_header(mp4) (mp4->buffer_pos - 8) | |
| 153 #define ngx_mp4_atom_data(mp4) mp4->buffer_pos | |
| 154 #define ngx_mp4_atom_next(mp4, n) mp4->buffer_pos += n; mp4->offset += n | |
| 155 | |
| 156 | |
| 157 #define ngx_mp4_set_atom_name(p, n1, n2, n3, n4) \ | |
| 158 ((u_char *) (p))[4] = n1; \ | |
| 159 ((u_char *) (p))[5] = n2; \ | |
| 160 ((u_char *) (p))[6] = n3; \ | |
| 161 ((u_char *) (p))[7] = n4 | |
| 162 | |
| 163 #define ngx_mp4_get_32value(p) \ | |
| 164 ( (((u_char *) (p))[0] << 24) \ | |
| 165 + (((u_char *) (p))[1] << 16) \ | |
| 166 + (((u_char *) (p))[2] << 8) \ | |
| 167 + (((u_char *) (p))[3]) ) | |
| 168 | |
| 169 #define ngx_mp4_set_32value(p, n) \ | |
| 170 ((u_char *) (p))[0] = (u_char) ((n) >> 24); \ | |
| 171 ((u_char *) (p))[1] = (u_char) ((n) >> 16); \ | |
| 172 ((u_char *) (p))[2] = (u_char) ((n) >> 8); \ | |
| 173 ((u_char *) (p))[3] = (u_char) (n) | |
| 174 | |
| 175 #define ngx_mp4_get_64value(p) \ | |
| 176 ( ((uint64_t) ((u_char *) (p))[0] << 56) \ | |
| 177 + ((uint64_t) ((u_char *) (p))[1] << 48) \ | |
| 178 + ((uint64_t) ((u_char *) (p))[2] << 40) \ | |
| 179 + ((uint64_t) ((u_char *) (p))[3] << 32) \ | |
| 180 + ((uint64_t) ((u_char *) (p))[4] << 24) \ | |
| 181 + ( ((u_char *) (p))[5] << 16) \ | |
| 182 + ( ((u_char *) (p))[6] << 8) \ | |
| 183 + ( ((u_char *) (p))[7]) ) | |
| 184 | |
| 185 #define ngx_mp4_set_64value(p, n) \ | |
| 186 ((u_char *) (p))[0] = (u_char) ((n) >> 56); \ | |
| 187 ((u_char *) (p))[1] = (u_char) ((n) >> 48); \ | |
| 188 ((u_char *) (p))[2] = (u_char) ((n) >> 40); \ | |
| 189 ((u_char *) (p))[3] = (u_char) ((n) >> 32); \ | |
| 190 ((u_char *) (p))[4] = (u_char) ((n) >> 24); \ | |
| 191 ((u_char *) (p))[5] = (u_char) ((n) >> 16); \ | |
| 192 ((u_char *) (p))[6] = (u_char) ((n) >> 8); \ | |
| 193 ((u_char *) (p))[7] = (u_char) (n) | |
| 194 | |
| 195 #define ngx_mp4_last_trak(mp4) \ | |
| 196 &((ngx_http_mp4_trak_t *) mp4->trak.elts)[mp4->trak.nelts - 1] | |
| 197 | |
| 198 | |
| 199 static ngx_int_t ngx_http_mp4_process(ngx_http_mp4_file_t *mp4); | |
| 200 static ngx_int_t ngx_http_mp4_read_atom(ngx_http_mp4_file_t *mp4, | |
| 201 ngx_http_mp4_atom_handler_t *atom, uint64_t atom_data_size); | |
| 202 static ngx_int_t ngx_http_mp4_read(ngx_http_mp4_file_t *mp4); | |
| 203 static ngx_int_t ngx_http_mp4_read_ftyp_atom(ngx_http_mp4_file_t *mp4, | |
| 204 uint64_t atom_data_size); | |
| 205 static ngx_int_t ngx_http_mp4_read_moov_atom(ngx_http_mp4_file_t *mp4, | |
| 206 uint64_t atom_data_size); | |
| 207 static ngx_int_t ngx_http_mp4_read_mdat_atom(ngx_http_mp4_file_t *mp4, | |
| 208 uint64_t atom_data_size); | |
| 209 static size_t ngx_http_mp4_update_mdat_atom(ngx_http_mp4_file_t *mp4, | |
| 210 off_t start_offset); | |
| 211 static ngx_int_t ngx_http_mp4_read_mvhd_atom(ngx_http_mp4_file_t *mp4, | |
| 212 uint64_t atom_data_size); | |
| 213 static ngx_int_t ngx_http_mp4_read_trak_atom(ngx_http_mp4_file_t *mp4, | |
| 214 uint64_t atom_data_size); | |
| 215 static void ngx_http_mp4_update_trak_atom(ngx_http_mp4_file_t *mp4, | |
| 216 ngx_http_mp4_trak_t *trak); | |
| 217 static ngx_int_t ngx_http_mp4_read_cmov_atom(ngx_http_mp4_file_t *mp4, | |
| 218 uint64_t atom_data_size); | |
| 219 static ngx_int_t ngx_http_mp4_read_tkhd_atom(ngx_http_mp4_file_t *mp4, | |
| 220 uint64_t atom_data_size); | |
| 221 static ngx_int_t ngx_http_mp4_read_mdia_atom(ngx_http_mp4_file_t *mp4, | |
| 222 uint64_t atom_data_size); | |
| 223 static void ngx_http_mp4_update_mdia_atom(ngx_http_mp4_file_t *mp4, | |
| 224 ngx_http_mp4_trak_t *trak); | |
| 225 static ngx_int_t ngx_http_mp4_read_mdhd_atom(ngx_http_mp4_file_t *mp4, | |
| 226 uint64_t atom_data_size); | |
| 227 static ngx_int_t ngx_http_mp4_read_hdlr_atom(ngx_http_mp4_file_t *mp4, | |
| 228 uint64_t atom_data_size); | |
| 229 static ngx_int_t ngx_http_mp4_read_minf_atom(ngx_http_mp4_file_t *mp4, | |
| 230 uint64_t atom_data_size); | |
| 231 static void ngx_http_mp4_update_minf_atom(ngx_http_mp4_file_t *mp4, | |
| 232 ngx_http_mp4_trak_t *trak); | |
| 233 static ngx_int_t ngx_http_mp4_read_dinf_atom(ngx_http_mp4_file_t *mp4, | |
| 234 uint64_t atom_data_size); | |
| 235 static ngx_int_t ngx_http_mp4_read_vmhd_atom(ngx_http_mp4_file_t *mp4, | |
| 236 uint64_t atom_data_size); | |
| 237 static ngx_int_t ngx_http_mp4_read_smhd_atom(ngx_http_mp4_file_t *mp4, | |
| 238 uint64_t atom_data_size); | |
| 239 static ngx_int_t ngx_http_mp4_read_stbl_atom(ngx_http_mp4_file_t *mp4, | |
| 240 uint64_t atom_data_size); | |
| 241 static void ngx_http_mp4_update_stbl_atom(ngx_http_mp4_file_t *mp4, | |
| 242 ngx_http_mp4_trak_t *trak); | |
| 243 static ngx_int_t ngx_http_mp4_read_stsd_atom(ngx_http_mp4_file_t *mp4, | |
| 244 uint64_t atom_data_size); | |
| 245 static ngx_int_t ngx_http_mp4_read_stts_atom(ngx_http_mp4_file_t *mp4, | |
| 246 uint64_t atom_data_size); | |
| 247 static ngx_int_t ngx_http_mp4_update_stts_atom(ngx_http_mp4_file_t *mp4, | |
| 248 ngx_http_mp4_trak_t *trak); | |
| 249 static ngx_int_t ngx_http_mp4_read_stss_atom(ngx_http_mp4_file_t *mp4, | |
| 250 uint64_t atom_data_size); | |
| 251 static ngx_int_t ngx_http_mp4_update_stss_atom(ngx_http_mp4_file_t *mp4, | |
| 252 ngx_http_mp4_trak_t *trak); | |
| 253 static ngx_int_t ngx_http_mp4_read_ctts_atom(ngx_http_mp4_file_t *mp4, | |
| 254 uint64_t atom_data_size); | |
| 255 static void ngx_http_mp4_update_ctts_atom(ngx_http_mp4_file_t *mp4, | |
| 256 ngx_http_mp4_trak_t *trak); | |
| 257 static ngx_int_t ngx_http_mp4_read_stsc_atom(ngx_http_mp4_file_t *mp4, | |
| 258 uint64_t atom_data_size); | |
| 259 static ngx_int_t ngx_http_mp4_update_stsc_atom(ngx_http_mp4_file_t *mp4, | |
| 260 ngx_http_mp4_trak_t *trak); | |
| 261 static ngx_int_t ngx_http_mp4_read_stsz_atom(ngx_http_mp4_file_t *mp4, | |
| 262 uint64_t atom_data_size); | |
| 263 static void ngx_http_mp4_update_stsz_atom(ngx_http_mp4_file_t *mp4, | |
| 264 ngx_http_mp4_trak_t *trak); | |
| 265 static ngx_int_t ngx_http_mp4_read_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 266 uint64_t atom_data_size); | |
| 267 static ngx_int_t ngx_http_mp4_update_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 268 ngx_http_mp4_trak_t *trak); | |
| 269 static void ngx_http_mp4_adjust_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 270 ngx_http_mp4_trak_t *trak, int32_t adjustment); | |
| 271 static char *ngx_http_mp4(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
| 272 static void *ngx_http_mp4_create_conf(ngx_conf_t *cf); | |
| 273 static char *ngx_http_mp4_merge_conf(ngx_conf_t *cf, void *parent, void *child); | |
| 274 | |
| 275 static ngx_command_t ngx_http_mp4_commands[] = { | |
| 276 | |
| 277 { ngx_string("mp4"), | |
| 278 NGX_HTTP_LOC_CONF|NGX_CONF_NOARGS, | |
| 279 ngx_http_mp4, | |
| 280 0, | |
| 281 0, | |
| 282 NULL }, | |
| 283 | |
| 284 { ngx_string("mp4_buffer_size"), | |
| 285 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 286 ngx_conf_set_size_slot, | |
| 287 NGX_HTTP_LOC_CONF_OFFSET, | |
| 288 offsetof(ngx_http_mp4_conf_t, buffer_size), | |
| 289 NULL }, | |
| 290 | |
|
4089
e27670e1ab70
mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
291 { ngx_string("mp4_max_buffer_size"), |
| 4085 | 292 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| 293 ngx_conf_set_size_slot, | |
| 294 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
|
295 offsetof(ngx_http_mp4_conf_t, max_buffer_size), |
| 4085 | 296 NULL }, |
| 297 | |
| 298 ngx_null_command | |
| 299 }; | |
| 300 | |
| 301 | |
| 302 static ngx_http_module_t ngx_http_mp4_module_ctx = { | |
| 303 NULL, /* preconfiguration */ | |
| 304 NULL, /* postconfiguration */ | |
| 305 | |
| 306 NULL, /* create main configuration */ | |
| 307 NULL, /* init main configuration */ | |
| 308 | |
| 309 NULL, /* create server configuration */ | |
| 310 NULL, /* merge server configuration */ | |
| 311 | |
| 312 ngx_http_mp4_create_conf, /* create location configuration */ | |
| 313 ngx_http_mp4_merge_conf /* merge location configuration */ | |
| 314 }; | |
| 315 | |
| 316 | |
| 317 ngx_module_t ngx_http_mp4_module = { | |
| 318 NGX_MODULE_V1, | |
| 319 &ngx_http_mp4_module_ctx, /* module context */ | |
| 320 ngx_http_mp4_commands, /* module directives */ | |
| 321 NGX_HTTP_MODULE, /* module type */ | |
| 322 NULL, /* init master */ | |
| 323 NULL, /* init module */ | |
| 324 NULL, /* init process */ | |
| 325 NULL, /* init thread */ | |
| 326 NULL, /* exit thread */ | |
| 327 NULL, /* exit process */ | |
| 328 NULL, /* exit master */ | |
| 329 NGX_MODULE_V1_PADDING | |
| 330 }; | |
| 331 | |
| 332 | |
| 333 static ngx_http_mp4_atom_handler_t ngx_http_mp4_atoms[] = { | |
| 334 { "ftyp", ngx_http_mp4_read_ftyp_atom }, | |
| 335 { "moov", ngx_http_mp4_read_moov_atom }, | |
| 336 { "mdat", ngx_http_mp4_read_mdat_atom }, | |
| 337 { NULL, NULL } | |
| 338 }; | |
| 339 | |
| 340 static ngx_http_mp4_atom_handler_t ngx_http_mp4_moov_atoms[] = { | |
| 341 { "mvhd", ngx_http_mp4_read_mvhd_atom }, | |
| 342 { "trak", ngx_http_mp4_read_trak_atom }, | |
| 343 { "cmov", ngx_http_mp4_read_cmov_atom }, | |
| 344 { NULL, NULL } | |
| 345 }; | |
| 346 | |
| 347 static ngx_http_mp4_atom_handler_t ngx_http_mp4_trak_atoms[] = { | |
| 348 { "tkhd", ngx_http_mp4_read_tkhd_atom }, | |
| 349 { "mdia", ngx_http_mp4_read_mdia_atom }, | |
| 350 { NULL, NULL } | |
| 351 }; | |
| 352 | |
| 353 static ngx_http_mp4_atom_handler_t ngx_http_mp4_mdia_atoms[] = { | |
| 354 { "mdhd", ngx_http_mp4_read_mdhd_atom }, | |
| 355 { "hdlr", ngx_http_mp4_read_hdlr_atom }, | |
| 356 { "minf", ngx_http_mp4_read_minf_atom }, | |
| 357 { NULL, NULL } | |
| 358 }; | |
| 359 | |
| 360 static ngx_http_mp4_atom_handler_t ngx_http_mp4_minf_atoms[] = { | |
| 361 { "vmhd", ngx_http_mp4_read_vmhd_atom }, | |
| 362 { "smhd", ngx_http_mp4_read_smhd_atom }, | |
| 363 { "dinf", ngx_http_mp4_read_dinf_atom }, | |
| 364 { "stbl", ngx_http_mp4_read_stbl_atom }, | |
| 365 { NULL, NULL } | |
| 366 }; | |
| 367 | |
| 368 static ngx_http_mp4_atom_handler_t ngx_http_mp4_stbl_atoms[] = { | |
| 369 { "stsd", ngx_http_mp4_read_stsd_atom }, | |
| 370 { "stts", ngx_http_mp4_read_stts_atom }, | |
| 371 { "stss", ngx_http_mp4_read_stss_atom }, | |
| 372 { "ctts", ngx_http_mp4_read_ctts_atom }, | |
| 373 { "stsc", ngx_http_mp4_read_stsc_atom }, | |
| 374 { "stsz", ngx_http_mp4_read_stsz_atom }, | |
| 375 { "stco", ngx_http_mp4_read_stco_atom }, | |
| 376 { NULL, NULL } | |
| 377 }; | |
| 378 | |
| 379 | |
| 380 static ngx_int_t | |
| 381 ngx_http_mp4_handler(ngx_http_request_t *r) | |
| 382 { | |
| 383 u_char *last; | |
| 384 size_t root; | |
| 385 ngx_int_t rc, start; | |
| 386 ngx_uint_t level; | |
| 387 ngx_str_t path, value; | |
| 388 ngx_log_t *log; | |
| 389 ngx_buf_t *b; | |
| 390 ngx_chain_t out; | |
| 391 ngx_http_mp4_file_t *mp4; | |
| 392 ngx_open_file_info_t of; | |
| 393 ngx_http_core_loc_conf_t *clcf; | |
| 394 | |
| 395 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { | |
| 396 return NGX_HTTP_NOT_ALLOWED; | |
| 397 } | |
| 398 | |
| 399 if (r->uri.data[r->uri.len - 1] == '/') { | |
| 400 return NGX_DECLINED; | |
| 401 } | |
| 402 | |
| 403 rc = ngx_http_discard_request_body(r); | |
| 404 | |
| 405 if (rc != NGX_OK) { | |
| 406 return rc; | |
| 407 } | |
| 408 | |
| 409 last = ngx_http_map_uri_to_path(r, &path, &root, 0); | |
| 410 if (last == NULL) { | |
| 411 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 412 } | |
| 413 | |
| 414 log = r->connection->log; | |
| 415 | |
| 416 path.len = last - path.data; | |
| 417 | |
| 418 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, | |
| 419 "http mp4 filename: \"%V\"", &path); | |
| 420 | |
| 421 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 422 | |
| 423 ngx_memzero(&of, sizeof(ngx_open_file_info_t)); | |
| 424 | |
| 425 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
|
426 of.directio = NGX_MAX_OFF_T_VALUE; |
| 4085 | 427 of.valid = clcf->open_file_cache_valid; |
| 428 of.min_uses = clcf->open_file_cache_min_uses; | |
| 429 of.errors = clcf->open_file_cache_errors; | |
| 430 of.events = clcf->open_file_cache_events; | |
| 431 | |
| 432 if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool) | |
| 433 != NGX_OK) | |
| 434 { | |
| 435 switch (of.err) { | |
| 436 | |
| 437 case 0: | |
| 438 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 439 | |
| 440 case NGX_ENOENT: | |
| 441 case NGX_ENOTDIR: | |
| 442 case NGX_ENAMETOOLONG: | |
| 443 | |
| 444 level = NGX_LOG_ERR; | |
| 445 rc = NGX_HTTP_NOT_FOUND; | |
| 446 break; | |
| 447 | |
| 448 case NGX_EACCES: | |
| 449 | |
| 450 level = NGX_LOG_ERR; | |
| 451 rc = NGX_HTTP_FORBIDDEN; | |
| 452 break; | |
| 453 | |
| 454 default: | |
| 455 | |
| 456 level = NGX_LOG_CRIT; | |
| 457 rc = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 458 break; | |
| 459 } | |
| 460 | |
| 461 if (rc != NGX_HTTP_NOT_FOUND || clcf->log_not_found) { | |
| 462 ngx_log_error(level, log, of.err, | |
| 463 "%s \"%s\" failed", of.failed, path.data); | |
| 464 } | |
| 465 | |
| 466 return rc; | |
| 467 } | |
| 468 | |
| 469 if (!of.is_file) { | |
| 470 | |
| 471 if (ngx_close_file(of.fd) == NGX_FILE_ERROR) { | |
| 472 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 473 ngx_close_file_n " \"%s\" failed", path.data); | |
| 474 } | |
| 475 | |
| 476 return NGX_DECLINED; | |
| 477 } | |
| 478 | |
| 479 r->root_tested = !r->error_page; | |
| 480 r->allow_ranges = 1; | |
| 481 | |
| 482 start = -1; | |
| 483 r->headers_out.content_length_n = of.size; | |
| 484 mp4 = NULL; | |
| 485 b = NULL; | |
| 486 | |
| 487 if (r->args.len) { | |
| 488 | |
| 489 if (ngx_http_arg(r, (u_char *) "start", 5, &value) == NGX_OK) { | |
| 490 | |
| 491 start = ngx_atofp(value.data, value.len, 3); | |
| 492 | |
| 493 if (start != NGX_ERROR) { | |
| 494 r->allow_ranges = 0; | |
| 495 | |
| 496 mp4 = ngx_pcalloc(r->pool, sizeof(ngx_http_mp4_file_t)); | |
| 497 if (mp4 == NULL) { | |
| 498 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 499 } | |
| 500 | |
| 501 mp4->file.fd = of.fd; | |
| 502 mp4->file.name = path; | |
| 503 mp4->file.log = r->connection->log;; | |
| 504 mp4->end = of.size; | |
| 505 mp4->start = (ngx_uint_t) start; | |
| 506 mp4->request = r; | |
| 507 | |
| 508 switch (ngx_http_mp4_process(mp4)) { | |
| 509 | |
| 510 case NGX_DECLINED: | |
| 511 if (mp4->buffer) { | |
| 512 ngx_pfree(r->pool, mp4->buffer); | |
| 513 } | |
| 514 | |
| 515 ngx_pfree(r->pool, mp4); | |
| 516 mp4 = NULL; | |
| 517 | |
| 518 break; | |
| 519 | |
| 520 case NGX_OK: | |
| 521 r->headers_out.content_length_n = mp4->content_length; | |
| 522 break; | |
| 523 | |
| 524 default: /* NGX_ERROR */ | |
| 525 if (mp4->buffer) { | |
| 526 ngx_pfree(r->pool, mp4->buffer); | |
| 527 } | |
| 528 | |
| 529 ngx_pfree(r->pool, mp4); | |
| 530 | |
| 531 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 532 } | |
| 533 } | |
| 534 } | |
| 535 } | |
| 536 | |
| 537 log->action = "sending mp4 to client"; | |
| 538 | |
| 539 if (clcf->directio <= of.size) { | |
| 540 | |
| 541 /* | |
| 542 * DIRECTIO is set on transfer only | |
| 543 * to allow kernel to cache "moov" atom | |
| 544 */ | |
| 545 | |
| 546 if (ngx_directio_on(of.fd) == NGX_FILE_ERROR) { | |
| 547 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 548 ngx_directio_on_n " \"%s\" failed", path.data); | |
| 549 } | |
| 550 | |
|
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
|
551 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
|
552 |
| 4085 | 553 if (mp4) { |
| 554 mp4->file.directio = 1; | |
| 555 } | |
| 556 } | |
| 557 | |
| 558 r->headers_out.status = NGX_HTTP_OK; | |
| 559 r->headers_out.last_modified_time = of.mtime; | |
| 560 | |
| 561 if (ngx_http_set_content_type(r) != NGX_OK) { | |
| 562 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 563 } | |
| 564 | |
| 565 if (mp4 == NULL) { | |
| 566 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); | |
| 567 if (b == NULL) { | |
| 568 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 569 } | |
| 570 | |
| 571 b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t)); | |
| 572 if (b->file == NULL) { | |
| 573 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 574 } | |
| 575 } | |
| 576 | |
| 577 rc = ngx_http_send_header(r); | |
| 578 | |
| 579 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
| 580 return rc; | |
| 581 } | |
| 582 | |
| 583 if (mp4) { | |
| 584 return ngx_http_output_filter(r, mp4->out); | |
| 585 } | |
| 586 | |
| 587 b->file_pos = 0; | |
| 588 b->file_last = of.size; | |
| 589 | |
| 590 b->in_file = b->file_last ? 1 : 0; | |
| 591 b->last_buf = 1; | |
| 592 b->last_in_chain = 1; | |
| 593 | |
| 594 b->file->fd = of.fd; | |
| 595 b->file->name = path; | |
| 596 b->file->log = log; | |
| 597 b->file->directio = of.is_directio; | |
| 598 | |
| 599 out.buf = b; | |
| 600 out.next = NULL; | |
| 601 | |
| 602 return ngx_http_output_filter(r, &out); | |
| 603 } | |
| 604 | |
| 605 | |
| 606 static ngx_int_t | |
| 607 ngx_http_mp4_process(ngx_http_mp4_file_t *mp4) | |
| 608 { | |
| 609 off_t start_offset, adjustment; | |
| 610 ngx_int_t rc; | |
| 611 ngx_uint_t i, j; | |
| 612 ngx_chain_t **prev; | |
| 613 ngx_http_mp4_trak_t *trak; | |
| 614 ngx_http_mp4_conf_t *conf; | |
| 615 | |
| 616 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 617 "mp4 start:%ui", mp4->start); | |
| 618 | |
| 619 conf = ngx_http_get_module_loc_conf(mp4->request, ngx_http_mp4_module); | |
| 620 | |
| 621 mp4->buffer_size = conf->buffer_size; | |
| 622 | |
| 623 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_atoms, mp4->end); | |
| 624 if (rc != NGX_OK) { | |
| 625 return rc; | |
| 626 } | |
| 627 | |
| 628 if (mp4->trak.nelts == 0) { | |
| 629 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 630 "no mp4 trak atoms were found in \"%s\"", | |
| 631 mp4->file.name.data); | |
| 632 return NGX_ERROR; | |
| 633 } | |
| 634 | |
| 635 if (mp4->mdat_atom.buf == NULL) { | |
| 636 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 637 "no mp4 mdat atom was found in \"%s\"", | |
| 638 mp4->file.name.data); | |
| 639 return NGX_ERROR; | |
| 640 } | |
| 641 | |
| 642 prev = &mp4->out; | |
| 643 | |
| 644 if (mp4->ftyp_atom.buf) { | |
| 645 *prev = &mp4->ftyp_atom; | |
| 646 prev = &mp4->ftyp_atom.next; | |
| 647 } | |
| 648 | |
| 649 *prev = &mp4->moov_atom; | |
| 650 prev = &mp4->moov_atom.next; | |
| 651 | |
| 652 if (mp4->mvhd_atom.buf) { | |
| 653 mp4->moov_size += mp4->mvhd_atom_buf.last - mp4->mvhd_atom_buf.pos; | |
| 654 *prev = &mp4->mvhd_atom; | |
| 655 prev = &mp4->mvhd_atom.next; | |
| 656 } | |
| 657 | |
| 658 start_offset = mp4->end; | |
| 659 trak = mp4->trak.elts; | |
| 660 | |
| 661 for (i = 0; i < mp4->trak.nelts; i++) { | |
| 662 | |
| 663 if (ngx_http_mp4_update_stts_atom(mp4, &trak[i]) != NGX_OK) { | |
| 664 return NGX_ERROR; | |
| 665 } | |
| 666 | |
| 667 if (ngx_http_mp4_update_stss_atom(mp4, &trak[i]) != NGX_OK) { | |
| 668 return NGX_ERROR; | |
| 669 } | |
| 670 | |
| 671 ngx_http_mp4_update_ctts_atom(mp4, &trak[i]); | |
| 672 | |
| 673 if (ngx_http_mp4_update_stsc_atom(mp4, &trak[i]) != NGX_OK) { | |
| 674 return NGX_ERROR; | |
| 675 } | |
| 676 | |
| 677 ngx_http_mp4_update_stsz_atom(mp4, &trak[i]); | |
| 678 | |
| 679 if (ngx_http_mp4_update_stco_atom(mp4, &trak[i]) != NGX_OK) { | |
| 680 return NGX_ERROR; | |
| 681 } | |
| 682 | |
| 683 ngx_http_mp4_update_stbl_atom(mp4, &trak[i]); | |
| 684 ngx_http_mp4_update_minf_atom(mp4, &trak[i]); | |
| 685 trak[i].size += trak[i].mdhd_size; | |
| 686 trak[i].size += trak[i].hdlr_size; | |
| 687 ngx_http_mp4_update_mdia_atom(mp4, &trak[i]); | |
| 688 trak[i].size += trak[i].tkhd_size; | |
| 689 ngx_http_mp4_update_trak_atom(mp4, &trak[i]); | |
| 690 | |
| 691 mp4->moov_size += trak[i].size; | |
| 692 | |
| 693 if (start_offset > trak[i].start_offset) { | |
| 694 start_offset = trak[i].start_offset; | |
| 695 } | |
| 696 | |
| 697 *prev = &trak[i].out[NGX_HTTP_MP4_TRAK_ATOM]; | |
| 698 prev = &trak[i].out[NGX_HTTP_MP4_TRAK_ATOM].next; | |
| 699 | |
| 700 for (j = 0; j < NGX_HTTP_MP4_LAST_ATOM + 1; j++) { | |
| 701 if (trak[i].out[j].buf) { | |
| 702 *prev = &trak[i].out[j]; | |
| 703 prev = &trak[i].out[j].next; | |
| 704 } | |
| 705 } | |
| 706 } | |
| 707 | |
| 708 mp4->moov_size += 8; | |
| 709 | |
| 710 ngx_mp4_set_32value(mp4->moov_atom_header, mp4->moov_size); | |
| 711 ngx_mp4_set_atom_name(mp4->moov_atom_header, 'm', 'o', 'o', 'v'); | |
| 712 mp4->content_length += mp4->moov_size; | |
| 713 | |
| 714 *prev = &mp4->mdat_atom; | |
| 715 | |
| 716 adjustment = mp4->ftyp_size + mp4->moov_size | |
| 717 + ngx_http_mp4_update_mdat_atom(mp4, start_offset) | |
| 718 - start_offset; | |
| 719 | |
|
4088
8fe1da7b8386
bugfix of r4086: nginx could not be built without debug log.
Igor Sysoev <igor@sysoev.ru>
parents:
4087
diff
changeset
|
720 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 721 "mp4 adjustment:%D", adjustment); |
| 722 | |
| 723 for (i = 0; i < mp4->trak.nelts; i++) { | |
| 724 ngx_http_mp4_adjust_stco_atom(mp4, &trak[i], (int32_t) adjustment); | |
| 725 } | |
| 726 | |
| 727 return NGX_OK; | |
| 728 } | |
| 729 | |
| 730 | |
| 731 typedef struct { | |
| 732 u_char size[4]; | |
| 733 u_char name[4]; | |
| 734 } ngx_mp4_atom_header_t; | |
| 735 | |
| 736 typedef struct { | |
| 737 u_char size[4]; | |
| 738 u_char name[4]; | |
| 739 u_char size64[8]; | |
| 740 } ngx_mp4_atom_header64_t; | |
| 741 | |
| 742 | |
| 743 static ngx_int_t | |
| 744 ngx_http_mp4_read_atom(ngx_http_mp4_file_t *mp4, | |
| 745 ngx_http_mp4_atom_handler_t *atom, uint64_t atom_data_size) | |
| 746 { | |
| 747 off_t end; | |
| 748 size_t atom_header_size; | |
| 749 u_char *atom_header, *atom_name; | |
| 750 uint64_t atom_size; | |
| 751 ngx_int_t rc; | |
| 752 ngx_uint_t n; | |
| 753 | |
| 754 end = mp4->offset + atom_data_size; | |
| 755 | |
| 756 while (mp4->offset < end) { | |
| 757 | |
| 758 if (mp4->buffer_pos + sizeof(uint32_t) > mp4->buffer_end) { | |
| 759 if (ngx_http_mp4_read(mp4) != NGX_OK) { | |
| 760 return NGX_ERROR; | |
| 761 } | |
| 762 } | |
| 763 | |
| 764 atom_header = mp4->buffer_pos; | |
| 765 atom_size = ngx_mp4_get_32value(atom_header); | |
| 766 atom_header_size = sizeof(ngx_mp4_atom_header_t); | |
| 767 | |
| 768 if (atom_size == 0) { | |
| 769 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 770 "mp4 atom end"); | |
| 771 return NGX_OK; | |
| 772 } | |
| 773 | |
| 774 if (atom_size < sizeof(ngx_mp4_atom_header_t)) { | |
| 775 | |
| 776 if (atom_size == 1) { | |
| 777 | |
| 778 if (mp4->buffer_pos + sizeof(ngx_mp4_atom_header64_t) | |
| 779 > mp4->buffer_end) | |
| 780 { | |
| 781 if (ngx_http_mp4_read(mp4) != NGX_OK) { | |
| 782 return NGX_ERROR; | |
| 783 } | |
| 784 | |
| 785 atom_header = mp4->buffer_pos; | |
| 786 } | |
| 787 | |
| 788 /* 64-bit atom size */ | |
| 789 atom_size = ngx_mp4_get_64value(atom_header + 8); | |
| 790 atom_header_size = sizeof(ngx_mp4_atom_header64_t); | |
| 791 | |
| 792 } else { | |
| 793 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 794 "\"%s\" mp4 atom is too small:%uL", | |
| 795 mp4->file.name.data, atom_size); | |
| 796 return NGX_ERROR; | |
| 797 } | |
| 798 } | |
| 799 | |
| 800 if (mp4->buffer_pos + sizeof(ngx_mp4_atom_header_t) > mp4->buffer_end) { | |
| 801 if (ngx_http_mp4_read(mp4) != NGX_OK) { | |
| 802 return NGX_ERROR; | |
| 803 } | |
| 804 | |
| 805 atom_header = mp4->buffer_pos; | |
| 806 } | |
| 807 | |
| 808 atom_name = atom_header + sizeof(uint32_t); | |
| 809 | |
|
4088
8fe1da7b8386
bugfix of r4086: nginx could not be built without debug log.
Igor Sysoev <igor@sysoev.ru>
parents:
4087
diff
changeset
|
810 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 811 "mp4 atom: %*s @%O:%uL", |
| 812 4, atom_name, mp4->offset, atom_size); | |
| 813 | |
| 814 for (n = 0; atom[n].name; n++) { | |
| 815 | |
| 816 if (ngx_strncmp(atom_name, atom[n].name, 4) == 0) { | |
| 817 | |
| 818 ngx_mp4_atom_next(mp4, atom_header_size); | |
| 819 | |
| 820 rc = atom[n].handler(mp4, atom_size - atom_header_size); | |
| 821 if (rc != NGX_OK) { | |
| 822 return rc; | |
| 823 } | |
| 824 | |
| 825 goto next; | |
| 826 } | |
| 827 } | |
| 828 | |
| 829 ngx_mp4_atom_next(mp4, atom_size); | |
| 830 | |
| 831 next: | |
| 832 continue; | |
| 833 } | |
| 834 | |
| 835 return NGX_OK; | |
| 836 } | |
| 837 | |
| 838 | |
| 839 static ngx_int_t | |
| 840 ngx_http_mp4_read(ngx_http_mp4_file_t *mp4) | |
| 841 { | |
| 842 ngx_int_t n; | |
| 843 | |
| 844 if (mp4->offset + (off_t) mp4->buffer_size > mp4->end) { | |
| 845 mp4->buffer_size = (size_t) (mp4->end - mp4->offset); | |
| 846 } | |
| 847 | |
| 848 if (mp4->buffer == NULL) { | |
| 849 mp4->buffer = ngx_palloc(mp4->request->pool, mp4->buffer_size); | |
| 850 if (mp4->buffer == NULL) { | |
| 851 return NGX_ERROR; | |
| 852 } | |
| 853 | |
| 854 mp4->buffer_start = mp4->buffer; | |
| 855 mp4->buffer_end = mp4->buffer + mp4->buffer_size; | |
| 856 } | |
| 857 | |
| 858 n = ngx_read_file(&mp4->file, mp4->buffer_start, mp4->buffer_size, | |
| 859 mp4->offset); | |
| 860 | |
| 861 if (n == NGX_ERROR) { | |
| 862 return NGX_ERROR; | |
| 863 } | |
| 864 | |
| 865 if (n == 0) { | |
| 866 return NGX_OK; | |
| 867 } | |
| 868 | |
| 869 mp4->buffer_pos = mp4->buffer_start; | |
| 870 | |
| 871 return NGX_OK; | |
| 872 } | |
| 873 | |
| 874 | |
| 875 static ngx_int_t | |
| 876 ngx_http_mp4_read_ftyp_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 877 { | |
| 878 u_char *ftyp_atom; | |
| 879 size_t atom_size; | |
| 880 ngx_buf_t *atom; | |
| 881 | |
| 882 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 ftyp atom"); | |
| 883 | |
| 884 if (atom_data_size > 1024) { | |
| 885 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 886 "\"%s\" mp4 ftyp atom is too large:%uL", | |
| 887 mp4->file.name.data, atom_data_size); | |
| 888 return NGX_ERROR; | |
| 889 } | |
| 890 | |
| 891 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 892 | |
| 893 ftyp_atom = ngx_palloc(mp4->request->pool, atom_size); | |
| 894 if (ftyp_atom == NULL) { | |
| 895 return NGX_ERROR; | |
| 896 } | |
| 897 | |
| 898 ngx_mp4_set_32value(ftyp_atom, atom_size); | |
| 899 ngx_mp4_set_atom_name(ftyp_atom, 'f', 't', 'y', 'p'); | |
| 900 | |
| 901 /* | |
| 902 * only moov atom content is guaranteed to be in mp4->buffer | |
| 903 * during sending response, so ftyp atom content should be copied | |
| 904 */ | |
| 905 ngx_memcpy(ftyp_atom + sizeof(ngx_mp4_atom_header_t), | |
| 906 ngx_mp4_atom_data(mp4), (size_t) atom_data_size); | |
| 907 | |
| 908 atom = &mp4->ftyp_atom_buf; | |
| 909 atom->temporary = 1; | |
| 910 atom->pos = ftyp_atom; | |
| 911 atom->last = ftyp_atom + atom_size; | |
| 912 | |
| 913 mp4->ftyp_atom.buf = atom; | |
| 914 mp4->ftyp_size = atom_size; | |
| 915 mp4->content_length = atom_size; | |
| 916 | |
| 917 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 918 | |
| 919 return NGX_OK; | |
| 920 } | |
| 921 | |
| 922 | |
| 923 /* | |
| 924 * Small excess buffer to process atoms after moov atom, mp4->buffer_start | |
| 925 * will be set to this buffer part after moov atom processing. | |
| 926 */ | |
| 927 #define NGX_HTTP_MP4_MOOV_BUFFER_EXCESS (4 * 1024) | |
| 928 | |
| 929 static ngx_int_t | |
| 930 ngx_http_mp4_read_moov_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 931 { | |
| 932 ngx_int_t rc; | |
| 933 ngx_uint_t no_mdat; | |
| 934 ngx_buf_t *atom; | |
| 935 ngx_http_mp4_conf_t *conf; | |
| 936 | |
| 937 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 moov atom"); | |
| 938 | |
| 939 no_mdat = (mp4->mdat_atom.buf == NULL); | |
| 940 | |
| 941 if (no_mdat && mp4->start == 0) { | |
| 942 /* | |
| 943 * send original file if moov atom resides before | |
| 944 * mdat atom and client requests integral file | |
| 945 */ | |
| 946 return NGX_DECLINED; | |
| 947 } | |
| 948 | |
| 949 conf = ngx_http_get_module_loc_conf(mp4->request, ngx_http_mp4_module); | |
| 950 | |
| 951 if (atom_data_size > mp4->buffer_size) { | |
| 952 | |
|
4089
e27670e1ab70
mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
953 if (atom_data_size > conf->max_buffer_size) { |
| 4085 | 954 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
| 955 "\"%s\" mp4 moov atom is too large:%uL, " | |
|
4089
e27670e1ab70
mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
956 "you may want to increase mp4_max_buffer_size", |
| 4085 | 957 mp4->file.name.data, atom_data_size); |
| 958 return NGX_ERROR; | |
| 959 } | |
| 960 | |
| 961 ngx_pfree(mp4->request->pool, mp4->buffer); | |
| 962 mp4->buffer = NULL; | |
| 963 mp4->buffer_pos = NULL; | |
| 964 mp4->buffer_end = NULL; | |
| 965 | |
| 966 mp4->buffer_size = (size_t) atom_data_size | |
| 967 + NGX_HTTP_MP4_MOOV_BUFFER_EXCESS * no_mdat; | |
| 968 } | |
| 969 | |
| 970 mp4->trak.elts = &mp4->traks; | |
| 971 mp4->trak.size = sizeof(ngx_http_mp4_trak_t); | |
| 972 mp4->trak.nalloc = 2; | |
| 973 mp4->trak.pool = mp4->request->pool; | |
| 974 | |
| 975 atom = &mp4->moov_atom_buf; | |
| 976 atom->temporary = 1; | |
| 977 atom->pos = mp4->moov_atom_header; | |
| 978 atom->last = mp4->moov_atom_header + 8; | |
| 979 | |
| 980 mp4->moov_atom.buf = &mp4->moov_atom_buf; | |
| 981 | |
| 982 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_moov_atoms, atom_data_size); | |
| 983 | |
| 984 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 moov atom done"); | |
| 985 | |
| 986 if (no_mdat) { | |
| 987 mp4->buffer_start = mp4->buffer_pos; | |
| 988 mp4->buffer_size = NGX_HTTP_MP4_MOOV_BUFFER_EXCESS; | |
| 989 | |
| 990 } else { | |
| 991 /* skip atoms after moov atom */ | |
| 992 mp4->offset = mp4->end; | |
| 993 } | |
| 994 | |
| 995 return rc; | |
| 996 } | |
| 997 | |
| 998 | |
| 999 static ngx_int_t | |
| 1000 ngx_http_mp4_read_mdat_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1001 { | |
| 1002 ngx_buf_t *data; | |
| 1003 | |
| 1004 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mdat atom"); | |
| 1005 | |
| 1006 data = &mp4->mdat_data_buf; | |
| 1007 data->file = &mp4->file; | |
| 1008 data->in_file = 1; | |
| 1009 data->last_buf = 1; | |
| 1010 data->last_in_chain = 1; | |
| 1011 data->file_last = mp4->offset + atom_data_size; | |
| 1012 | |
| 1013 mp4->mdat_atom.buf = &mp4->mdat_atom_buf; | |
| 1014 mp4->mdat_atom.next = &mp4->mdat_data; | |
| 1015 mp4->mdat_data.buf = data; | |
| 1016 | |
| 1017 if (mp4->trak.nelts) { | |
| 1018 /* skip atoms after mdat atom */ | |
| 1019 mp4->offset = mp4->end; | |
| 1020 | |
| 1021 } else { | |
| 1022 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1023 } | |
| 1024 | |
| 1025 return NGX_OK; | |
| 1026 } | |
| 1027 | |
| 1028 | |
| 1029 static size_t | |
| 1030 ngx_http_mp4_update_mdat_atom(ngx_http_mp4_file_t *mp4, off_t start_offset) | |
| 1031 { | |
| 1032 off_t atom_data_size; | |
| 1033 u_char *atom_header; | |
| 1034 uint32_t atom_header_size; | |
| 1035 uint64_t atom_size; | |
| 1036 ngx_buf_t *atom; | |
| 1037 | |
| 1038 atom_data_size = mp4->mdat_data.buf->file_last - start_offset; | |
| 1039 mp4->mdat_data.buf->file_pos = start_offset; | |
| 1040 mp4->content_length += atom_data_size; | |
| 1041 | |
|
4088
8fe1da7b8386
bugfix of r4086: nginx could not be built without debug log.
Igor Sysoev <igor@sysoev.ru>
parents:
4087
diff
changeset
|
1042 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 1043 "mdat new offset @%O:%O", start_offset, atom_data_size); |
| 1044 | |
| 1045 atom_header = mp4->mdat_atom_header; | |
| 1046 | |
| 1047 if (atom_data_size > 0xffffffff) { | |
| 1048 atom_size = 1; | |
| 1049 atom_header_size = sizeof(ngx_mp4_atom_header64_t); | |
| 1050 ngx_mp4_set_64value(atom_header + sizeof(ngx_mp4_atom_header_t), | |
| 1051 sizeof(ngx_mp4_atom_header64_t) + atom_data_size); | |
| 1052 } else { | |
| 1053 atom_size = sizeof(ngx_mp4_atom_header_t) + atom_data_size; | |
| 1054 atom_header_size = sizeof(ngx_mp4_atom_header_t); | |
| 1055 } | |
| 1056 | |
| 1057 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1058 ngx_mp4_set_atom_name(atom_header, 'm', 'd', 'a', 't'); | |
| 1059 | |
| 1060 atom = &mp4->mdat_atom_buf; | |
| 1061 atom->temporary = 1; | |
| 1062 atom->pos = atom_header; | |
| 1063 atom->last = atom_header + atom_header_size; | |
| 1064 | |
| 1065 return atom_header_size; | |
| 1066 } | |
| 1067 | |
| 1068 | |
| 1069 typedef struct { | |
| 1070 u_char size[4]; | |
| 1071 u_char name[4]; | |
| 1072 u_char version[1]; | |
| 1073 u_char flags[3]; | |
| 1074 u_char creation_time[4]; | |
| 1075 u_char modification_time[4]; | |
| 1076 u_char timescale[4]; | |
| 1077 u_char duration[4]; | |
| 1078 u_char rate[4]; | |
| 1079 u_char volume[2]; | |
| 1080 u_char reserved[10]; | |
| 1081 u_char matrix[36]; | |
| 1082 u_char preview_time[4]; | |
| 1083 u_char preview_duration[4]; | |
| 1084 u_char poster_time[4]; | |
| 1085 u_char selection_time[4]; | |
| 1086 u_char selection_duration[4]; | |
| 1087 u_char current_time[4]; | |
| 1088 u_char next_track_id[4]; | |
| 1089 } ngx_mp4_mvhd_atom_t; | |
| 1090 | |
| 1091 typedef struct { | |
| 1092 u_char size[4]; | |
| 1093 u_char name[4]; | |
| 1094 u_char version[1]; | |
| 1095 u_char flags[3]; | |
| 1096 u_char creation_time[8]; | |
| 1097 u_char modification_time[8]; | |
| 1098 u_char timescale[4]; | |
| 1099 u_char duration[8]; | |
| 1100 u_char rate[4]; | |
| 1101 u_char volume[2]; | |
| 1102 u_char reserved[10]; | |
| 1103 u_char matrix[36]; | |
| 1104 u_char preview_time[4]; | |
| 1105 u_char preview_duration[4]; | |
| 1106 u_char poster_time[4]; | |
| 1107 u_char selection_time[4]; | |
| 1108 u_char selection_duration[4]; | |
| 1109 u_char current_time[4]; | |
| 1110 u_char next_track_id[4]; | |
| 1111 } ngx_mp4_mvhd64_atom_t; | |
| 1112 | |
| 1113 | |
| 1114 static ngx_int_t | |
| 1115 ngx_http_mp4_read_mvhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1116 { | |
| 1117 u_char *atom_header; | |
| 1118 size_t atom_size; | |
| 1119 uint32_t timescale; | |
| 1120 uint64_t duration; | |
| 1121 ngx_buf_t *atom; | |
| 1122 ngx_mp4_mvhd_atom_t *mvhd_atom; | |
| 1123 ngx_mp4_mvhd64_atom_t *mvhd64_atom; | |
| 1124 | |
| 1125 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mvhd atom"); | |
| 1126 | |
| 1127 atom_header = ngx_mp4_atom_header(mp4); | |
| 1128 mvhd_atom = (ngx_mp4_mvhd_atom_t *) atom_header; | |
| 1129 mvhd64_atom = (ngx_mp4_mvhd64_atom_t *) atom_header; | |
| 1130 ngx_mp4_set_atom_name(atom_header, 'm', 'v', 'h', 'd'); | |
| 1131 | |
| 1132 if (mvhd_atom->version[0] == 0) { | |
| 1133 /* version 0: 32-bit duration */ | |
| 1134 timescale = ngx_mp4_get_32value(mvhd_atom->timescale); | |
| 1135 duration = ngx_mp4_get_32value(mvhd_atom->duration); | |
| 1136 | |
| 1137 } else { | |
| 1138 /* version 1: 64-bit duration */ | |
| 1139 timescale = ngx_mp4_get_32value(mvhd64_atom->timescale); | |
| 1140 duration = ngx_mp4_get_64value(mvhd64_atom->duration); | |
| 1141 } | |
| 1142 | |
| 1143 mp4->timescale = timescale; | |
| 1144 | |
| 1145 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1146 "mvhd timescale:%uD, duration:%uL, time:%.3fs", | |
| 1147 timescale, duration, (double) duration / timescale); | |
| 1148 | |
| 1149 duration -= (uint64_t) mp4->start * timescale / 1000; | |
| 1150 | |
| 1151 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1152 "mvhd new duration:%uL, time:%.3fs", | |
| 1153 duration, (double) duration / timescale); | |
| 1154 | |
| 1155 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1156 ngx_mp4_set_32value(mvhd_atom->size, atom_size); | |
| 1157 | |
| 1158 if (mvhd_atom->version[0] == 0) { | |
| 1159 ngx_mp4_set_32value(mvhd_atom->duration, duration); | |
| 1160 | |
| 1161 } else { | |
| 1162 ngx_mp4_set_64value(mvhd64_atom->duration, duration); | |
| 1163 } | |
| 1164 | |
| 1165 atom = &mp4->mvhd_atom_buf; | |
| 1166 atom->temporary = 1; | |
| 1167 atom->pos = atom_header; | |
| 1168 atom->last = atom_header + atom_size; | |
| 1169 | |
| 1170 mp4->mvhd_atom.buf = atom; | |
| 1171 | |
| 1172 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1173 | |
| 1174 return NGX_OK; | |
| 1175 } | |
| 1176 | |
| 1177 | |
| 1178 static ngx_int_t | |
| 1179 ngx_http_mp4_read_trak_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1180 { | |
| 1181 u_char *atom_header; | |
| 1182 ngx_buf_t *atom; | |
| 1183 ngx_http_mp4_trak_t *trak; | |
| 1184 | |
| 1185 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 trak atom"); | |
| 1186 | |
| 1187 trak = ngx_array_push(&mp4->trak); | |
| 1188 if (trak == NULL) { | |
| 1189 return NGX_ERROR; | |
| 1190 } | |
| 1191 | |
| 1192 ngx_memzero(trak, sizeof(ngx_http_mp4_trak_t)); | |
| 1193 | |
| 1194 atom_header = ngx_mp4_atom_header(mp4); | |
| 1195 ngx_mp4_set_atom_name(atom_header, 't', 'r', 'a', 'k'); | |
| 1196 | |
| 1197 atom = &trak->trak_atom_buf; | |
| 1198 atom->temporary = 1; | |
| 1199 atom->pos = atom_header; | |
| 1200 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1201 | |
| 1202 trak->out[NGX_HTTP_MP4_TRAK_ATOM].buf = atom; | |
| 1203 | |
| 1204 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_trak_atoms, atom_data_size); | |
| 1205 } | |
| 1206 | |
| 1207 | |
| 1208 static void | |
| 1209 ngx_http_mp4_update_trak_atom(ngx_http_mp4_file_t *mp4, | |
| 1210 ngx_http_mp4_trak_t *trak) | |
| 1211 { | |
| 1212 ngx_buf_t *atom; | |
| 1213 | |
| 1214 trak->size += sizeof(ngx_mp4_atom_header_t); | |
| 1215 atom = &trak->trak_atom_buf; | |
| 1216 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1217 } | |
| 1218 | |
| 1219 | |
| 1220 static ngx_int_t | |
| 1221 ngx_http_mp4_read_cmov_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1222 { | |
| 1223 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 1224 "\"%s\" mp4 compressed moov atom (cmov) is not supported", | |
| 1225 mp4->file.name.data); | |
| 1226 | |
| 1227 return NGX_ERROR; | |
| 1228 } | |
| 1229 | |
| 1230 | |
| 1231 typedef struct { | |
| 1232 u_char size[4]; | |
| 1233 u_char name[4]; | |
| 1234 u_char version[1]; | |
| 1235 u_char flags[3]; | |
| 1236 u_char creation_time[4]; | |
| 1237 u_char modification_time[4]; | |
| 1238 u_char track_id[4]; | |
| 1239 u_char reserved1[4]; | |
| 1240 u_char duration[4]; | |
| 1241 u_char reserved2[8]; | |
| 1242 u_char layer[2]; | |
| 1243 u_char group[2]; | |
| 1244 u_char volume[2]; | |
| 1245 u_char reverved3[2]; | |
| 1246 u_char matrix[36]; | |
| 1247 u_char width[4]; | |
| 1248 u_char heigth[4]; | |
| 1249 } ngx_mp4_tkhd_atom_t; | |
| 1250 | |
| 1251 typedef struct { | |
| 1252 u_char size[4]; | |
| 1253 u_char name[4]; | |
| 1254 u_char version[1]; | |
| 1255 u_char flags[3]; | |
| 1256 u_char creation_time[8]; | |
| 1257 u_char modification_time[8]; | |
| 1258 u_char track_id[4]; | |
| 1259 u_char reserved1[4]; | |
| 1260 u_char duration[8]; | |
| 1261 u_char reserved2[8]; | |
| 1262 u_char layer[2]; | |
| 1263 u_char group[2]; | |
| 1264 u_char volume[2]; | |
| 1265 u_char reverved3[2]; | |
| 1266 u_char matrix[36]; | |
| 1267 u_char width[4]; | |
| 1268 u_char heigth[4]; | |
| 1269 } ngx_mp4_tkhd64_atom_t; | |
| 1270 | |
| 1271 | |
| 1272 static ngx_int_t | |
| 1273 ngx_http_mp4_read_tkhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1274 { | |
| 1275 u_char *atom_header; | |
| 1276 size_t atom_size; | |
| 1277 uint64_t duration; | |
| 1278 ngx_buf_t *atom; | |
| 1279 ngx_http_mp4_trak_t *trak; | |
| 1280 ngx_mp4_tkhd_atom_t *tkhd_atom; | |
| 1281 ngx_mp4_tkhd64_atom_t *tkhd64_atom; | |
| 1282 | |
| 1283 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 tkhd atom"); | |
| 1284 | |
| 1285 atom_header = ngx_mp4_atom_header(mp4); | |
| 1286 tkhd_atom = (ngx_mp4_tkhd_atom_t *) atom_header; | |
| 1287 tkhd64_atom = (ngx_mp4_tkhd64_atom_t *) atom_header; | |
| 1288 ngx_mp4_set_atom_name(tkhd_atom, 't', 'k', 'h', 'd'); | |
| 1289 | |
| 1290 if (tkhd_atom->version[0] == 0) { | |
| 1291 /* version 0: 32-bit duration */ | |
| 1292 duration = ngx_mp4_get_32value(tkhd_atom->duration); | |
| 1293 | |
| 1294 } else { | |
| 1295 /* version 1: 64-bit duration */ | |
| 1296 duration = ngx_mp4_get_64value(tkhd64_atom->duration); | |
| 1297 } | |
| 1298 | |
| 1299 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1300 "tkhd duration:%uL, time:%.3fs", | |
| 1301 duration, (double) duration / mp4->timescale); | |
| 1302 | |
| 1303 duration -= (uint64_t) mp4->start * mp4->timescale / 1000; | |
| 1304 | |
| 1305 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1306 "tkhd new duration:%uL, time:%.3fs", | |
| 1307 duration, (double) duration / mp4->timescale); | |
| 1308 | |
| 1309 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1310 | |
| 1311 trak = ngx_mp4_last_trak(mp4); | |
| 1312 trak->tkhd_size = atom_size; | |
| 1313 | |
| 1314 ngx_mp4_set_32value(tkhd_atom->size, atom_size); | |
| 1315 | |
| 1316 if (tkhd_atom->version[0] == 0) { | |
| 1317 ngx_mp4_set_32value(tkhd_atom->duration, duration); | |
| 1318 | |
| 1319 } else { | |
| 1320 ngx_mp4_set_64value(tkhd64_atom->duration, duration); | |
| 1321 } | |
| 1322 | |
| 1323 atom = &trak->tkhd_atom_buf; | |
| 1324 atom->temporary = 1; | |
| 1325 atom->pos = atom_header; | |
| 1326 atom->last = atom_header + atom_size; | |
| 1327 | |
| 1328 trak->out[NGX_HTTP_MP4_TKHD_ATOM].buf = atom; | |
| 1329 | |
| 1330 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1331 | |
| 1332 return NGX_OK; | |
| 1333 } | |
| 1334 | |
| 1335 | |
| 1336 static ngx_int_t | |
| 1337 ngx_http_mp4_read_mdia_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1338 { | |
| 1339 u_char *atom_header; | |
| 1340 ngx_buf_t *atom; | |
| 1341 ngx_http_mp4_trak_t *trak; | |
| 1342 | |
| 1343 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process mdia atom"); | |
| 1344 | |
| 1345 atom_header = ngx_mp4_atom_header(mp4); | |
| 1346 ngx_mp4_set_atom_name(atom_header, 'm', 'd', 'i', 'a'); | |
| 1347 | |
| 1348 trak = ngx_mp4_last_trak(mp4); | |
| 1349 | |
| 1350 atom = &trak->mdia_atom_buf; | |
| 1351 atom->temporary = 1; | |
| 1352 atom->pos = atom_header; | |
| 1353 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1354 | |
| 1355 trak->out[NGX_HTTP_MP4_MDIA_ATOM].buf = atom; | |
| 1356 | |
| 1357 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_mdia_atoms, atom_data_size); | |
| 1358 } | |
| 1359 | |
| 1360 | |
| 1361 static void | |
| 1362 ngx_http_mp4_update_mdia_atom(ngx_http_mp4_file_t *mp4, | |
| 1363 ngx_http_mp4_trak_t *trak) | |
| 1364 { | |
| 1365 ngx_buf_t *atom; | |
| 1366 | |
| 1367 trak->size += sizeof(ngx_mp4_atom_header_t); | |
| 1368 atom = &trak->mdia_atom_buf; | |
| 1369 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1370 } | |
| 1371 | |
| 1372 | |
| 1373 typedef struct { | |
| 1374 u_char size[4]; | |
| 1375 u_char name[4]; | |
| 1376 u_char version[1]; | |
| 1377 u_char flags[3]; | |
| 1378 u_char creation_time[4]; | |
| 1379 u_char modification_time[4]; | |
| 1380 u_char timescale[4]; | |
| 1381 u_char duration[4]; | |
| 1382 u_char language[2]; | |
| 1383 u_char quality[2]; | |
| 1384 } ngx_mp4_mdhd_atom_t; | |
| 1385 | |
| 1386 typedef struct { | |
| 1387 u_char size[4]; | |
| 1388 u_char name[4]; | |
| 1389 u_char version[1]; | |
| 1390 u_char flags[3]; | |
| 1391 u_char creation_time[8]; | |
| 1392 u_char modification_time[8]; | |
| 1393 u_char timescale[4]; | |
| 1394 u_char duration[8]; | |
| 1395 u_char language[2]; | |
| 1396 u_char quality[2]; | |
| 1397 } ngx_mp4_mdhd64_atom_t; | |
| 1398 | |
| 1399 | |
| 1400 static ngx_int_t | |
| 1401 ngx_http_mp4_read_mdhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1402 { | |
| 1403 u_char *atom_header; | |
| 1404 size_t atom_size; | |
| 1405 uint32_t timescale; | |
| 1406 uint64_t duration; | |
| 1407 ngx_buf_t *atom; | |
| 1408 ngx_http_mp4_trak_t *trak; | |
| 1409 ngx_mp4_mdhd_atom_t *mdhd_atom; | |
| 1410 ngx_mp4_mdhd64_atom_t *mdhd64_atom; | |
| 1411 | |
| 1412 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mdhd atom"); | |
| 1413 | |
| 1414 atom_header = ngx_mp4_atom_header(mp4); | |
| 1415 mdhd_atom = (ngx_mp4_mdhd_atom_t *) atom_header; | |
| 1416 mdhd64_atom = (ngx_mp4_mdhd64_atom_t *) atom_header; | |
| 1417 ngx_mp4_set_atom_name(mdhd_atom, 'm', 'd', 'h', 'd'); | |
| 1418 | |
| 1419 if (mdhd_atom->version[0] == 0) { | |
| 1420 /* version 0: everything is 32-bit */ | |
| 1421 timescale = ngx_mp4_get_32value(mdhd_atom->timescale); | |
| 1422 duration = ngx_mp4_get_32value(mdhd_atom->duration); | |
| 1423 | |
| 1424 } else { | |
| 1425 /* version 1: 64-bit duration and 32-bit timescale */ | |
| 1426 timescale = ngx_mp4_get_32value(mdhd64_atom->timescale); | |
| 1427 duration = ngx_mp4_get_64value(mdhd64_atom->duration); | |
| 1428 } | |
| 1429 | |
| 1430 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1431 "mdhd timescale:%uD, duration:%uL, time:%.3fs", | |
| 1432 timescale, duration, (double) duration / timescale); | |
| 1433 | |
| 1434 duration -= (uint64_t) mp4->start * timescale / 1000; | |
| 1435 | |
| 1436 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1437 "mdhd new duration:%uL, time:%.3fs", | |
| 1438 duration, (double) duration / timescale); | |
| 1439 | |
| 1440 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1441 | |
| 1442 trak = ngx_mp4_last_trak(mp4); | |
| 1443 trak->mdhd_size = atom_size; | |
| 1444 trak->timescale = timescale; | |
| 1445 | |
| 1446 ngx_mp4_set_32value(mdhd_atom->size, atom_size); | |
| 1447 | |
| 1448 if (mdhd_atom->version[0] == 0) { | |
| 1449 ngx_mp4_set_32value(mdhd_atom->duration, duration); | |
| 1450 | |
| 1451 } else { | |
| 1452 ngx_mp4_set_64value(mdhd64_atom->duration, duration); | |
| 1453 } | |
| 1454 | |
| 1455 atom = &trak->mdhd_atom_buf; | |
| 1456 atom->temporary = 1; | |
| 1457 atom->pos = atom_header; | |
| 1458 atom->last = atom_header + atom_size; | |
| 1459 | |
| 1460 trak->out[NGX_HTTP_MP4_MDHD_ATOM].buf = atom; | |
| 1461 | |
| 1462 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1463 | |
| 1464 return NGX_OK; | |
| 1465 } | |
| 1466 | |
| 1467 | |
| 1468 static ngx_int_t | |
| 1469 ngx_http_mp4_read_hdlr_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1470 { | |
| 1471 u_char *atom_header; | |
| 1472 size_t atom_size; | |
| 1473 ngx_buf_t *atom; | |
| 1474 ngx_http_mp4_trak_t *trak; | |
| 1475 | |
| 1476 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 hdlr atom"); | |
| 1477 | |
| 1478 atom_header = ngx_mp4_atom_header(mp4); | |
| 1479 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1480 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1481 ngx_mp4_set_atom_name(atom_header, 'h', 'd', 'l', 'r'); | |
| 1482 | |
| 1483 trak = ngx_mp4_last_trak(mp4); | |
| 1484 | |
| 1485 atom = &trak->hdlr_atom_buf; | |
| 1486 atom->temporary = 1; | |
| 1487 atom->pos = atom_header; | |
| 1488 atom->last = atom_header + atom_size; | |
| 1489 | |
| 1490 trak->hdlr_size = atom_size; | |
| 1491 trak->out[NGX_HTTP_MP4_HDLR_ATOM].buf = atom; | |
| 1492 | |
| 1493 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1494 | |
| 1495 return NGX_OK; | |
| 1496 } | |
| 1497 | |
| 1498 | |
| 1499 static ngx_int_t | |
| 1500 ngx_http_mp4_read_minf_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1501 { | |
| 1502 u_char *atom_header; | |
| 1503 ngx_buf_t *atom; | |
| 1504 ngx_http_mp4_trak_t *trak; | |
| 1505 | |
| 1506 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process minf atom"); | |
| 1507 | |
| 1508 atom_header = ngx_mp4_atom_header(mp4); | |
| 1509 ngx_mp4_set_atom_name(atom_header, 'm', 'i', 'n', 'f'); | |
| 1510 | |
| 1511 trak = ngx_mp4_last_trak(mp4); | |
| 1512 | |
| 1513 atom = &trak->minf_atom_buf; | |
| 1514 atom->temporary = 1; | |
| 1515 atom->pos = atom_header; | |
| 1516 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1517 | |
| 1518 trak->out[NGX_HTTP_MP4_MINF_ATOM].buf = atom; | |
| 1519 | |
| 1520 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_minf_atoms, atom_data_size); | |
| 1521 } | |
| 1522 | |
| 1523 | |
| 1524 static void | |
| 1525 ngx_http_mp4_update_minf_atom(ngx_http_mp4_file_t *mp4, | |
| 1526 ngx_http_mp4_trak_t *trak) | |
| 1527 { | |
| 1528 ngx_buf_t *atom; | |
| 1529 | |
| 1530 trak->size += sizeof(ngx_mp4_atom_header_t) | |
| 1531 + trak->vmhd_size | |
| 1532 + trak->smhd_size | |
| 1533 + trak->dinf_size; | |
| 1534 atom = &trak->minf_atom_buf; | |
| 1535 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1536 } | |
| 1537 | |
| 1538 | |
| 1539 static ngx_int_t | |
| 1540 ngx_http_mp4_read_vmhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1541 { | |
| 1542 u_char *atom_header; | |
| 1543 size_t atom_size; | |
| 1544 ngx_buf_t *atom; | |
| 1545 ngx_http_mp4_trak_t *trak; | |
| 1546 | |
| 1547 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 vmhd atom"); | |
| 1548 | |
| 1549 atom_header = ngx_mp4_atom_header(mp4); | |
| 1550 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1551 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1552 ngx_mp4_set_atom_name(atom_header, 'v', 'm', 'h', 'd'); | |
| 1553 | |
| 1554 trak = ngx_mp4_last_trak(mp4); | |
| 1555 | |
| 1556 atom = &trak->vmhd_atom_buf; | |
| 1557 atom->temporary = 1; | |
| 1558 atom->pos = atom_header; | |
| 1559 atom->last = atom_header + atom_size; | |
| 1560 | |
| 1561 trak->vmhd_size += atom_size; | |
| 1562 trak->out[NGX_HTTP_MP4_VMHD_ATOM].buf = atom; | |
| 1563 | |
| 1564 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1565 | |
| 1566 return NGX_OK; | |
| 1567 } | |
| 1568 | |
| 1569 | |
| 1570 static ngx_int_t | |
| 1571 ngx_http_mp4_read_smhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1572 { | |
| 1573 u_char *atom_header; | |
| 1574 size_t atom_size; | |
| 1575 ngx_buf_t *atom; | |
| 1576 ngx_http_mp4_trak_t *trak; | |
| 1577 | |
| 1578 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 smhd atom"); | |
| 1579 | |
| 1580 atom_header = ngx_mp4_atom_header(mp4); | |
| 1581 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1582 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1583 ngx_mp4_set_atom_name(atom_header, 's', 'm', 'h', 'd'); | |
| 1584 | |
| 1585 trak = ngx_mp4_last_trak(mp4); | |
| 1586 | |
| 1587 atom = &trak->smhd_atom_buf; | |
| 1588 atom->temporary = 1; | |
| 1589 atom->pos = atom_header; | |
| 1590 atom->last = atom_header + atom_size; | |
| 1591 | |
| 1592 trak->vmhd_size += atom_size; | |
| 1593 trak->out[NGX_HTTP_MP4_SMHD_ATOM].buf = atom; | |
| 1594 | |
| 1595 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1596 | |
| 1597 return NGX_OK; | |
| 1598 } | |
| 1599 | |
| 1600 | |
| 1601 static ngx_int_t | |
| 1602 ngx_http_mp4_read_dinf_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1603 { | |
| 1604 u_char *atom_header; | |
| 1605 size_t atom_size; | |
| 1606 ngx_buf_t *atom; | |
| 1607 ngx_http_mp4_trak_t *trak; | |
| 1608 | |
| 1609 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 dinf atom"); | |
| 1610 | |
| 1611 atom_header = ngx_mp4_atom_header(mp4); | |
| 1612 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1613 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1614 ngx_mp4_set_atom_name(atom_header, 'd', 'i', 'n', 'f'); | |
| 1615 | |
| 1616 trak = ngx_mp4_last_trak(mp4); | |
| 1617 | |
| 1618 atom = &trak->dinf_atom_buf; | |
| 1619 atom->temporary = 1; | |
| 1620 atom->pos = atom_header; | |
| 1621 atom->last = atom_header + atom_size; | |
| 1622 | |
| 1623 trak->dinf_size += atom_size; | |
| 1624 trak->out[NGX_HTTP_MP4_DINF_ATOM].buf = atom; | |
| 1625 | |
| 1626 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1627 | |
| 1628 return NGX_OK; | |
| 1629 } | |
| 1630 | |
| 1631 | |
| 1632 static ngx_int_t | |
| 1633 ngx_http_mp4_read_stbl_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1634 { | |
| 1635 u_char *atom_header; | |
| 1636 ngx_buf_t *atom; | |
| 1637 ngx_http_mp4_trak_t *trak; | |
| 1638 | |
| 1639 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process stbl atom"); | |
| 1640 | |
| 1641 atom_header = ngx_mp4_atom_header(mp4); | |
| 1642 ngx_mp4_set_atom_name(atom_header, 's', 't', 'b', 'l'); | |
| 1643 | |
| 1644 trak = ngx_mp4_last_trak(mp4); | |
| 1645 | |
| 1646 atom = &trak->stbl_atom_buf; | |
| 1647 atom->temporary = 1; | |
| 1648 atom->pos = atom_header; | |
| 1649 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1650 | |
| 1651 trak->out[NGX_HTTP_MP4_STBL_ATOM].buf = atom; | |
| 1652 | |
| 1653 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_stbl_atoms, atom_data_size); | |
| 1654 } | |
| 1655 | |
| 1656 | |
| 1657 static void | |
| 1658 ngx_http_mp4_update_stbl_atom(ngx_http_mp4_file_t *mp4, | |
| 1659 ngx_http_mp4_trak_t *trak) | |
| 1660 { | |
| 1661 ngx_buf_t *atom; | |
| 1662 | |
| 1663 trak->size += sizeof(ngx_mp4_atom_header_t); | |
| 1664 atom = &trak->stbl_atom_buf; | |
| 1665 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1666 } | |
| 1667 | |
| 1668 | |
| 1669 typedef struct { | |
| 1670 u_char size[4]; | |
| 1671 u_char name[4]; | |
| 1672 u_char version[1]; | |
| 1673 u_char flags[3]; | |
| 1674 u_char entries[4]; | |
| 1675 } ngx_mp4_stsd_atom_t; | |
| 1676 | |
| 1677 | |
| 1678 static ngx_int_t | |
| 1679 ngx_http_mp4_read_stsd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1680 { | |
| 1681 u_char *atom_header, *atom_table; | |
| 1682 size_t atom_size; | |
| 1683 ngx_buf_t *atom; | |
| 1684 ngx_mp4_stsd_atom_t *stsd_atom; | |
| 1685 ngx_http_mp4_trak_t *trak; | |
| 1686 | |
| 1687 /* sample description atom */ | |
| 1688 | |
| 1689 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsd atom"); | |
| 1690 | |
| 1691 atom_header = ngx_mp4_atom_header(mp4); | |
| 1692 stsd_atom = (ngx_mp4_stsd_atom_t *) atom_header; | |
| 1693 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1694 atom_table = atom_header + atom_size; | |
| 1695 ngx_mp4_set_32value(stsd_atom->size, atom_size); | |
| 1696 ngx_mp4_set_atom_name(stsd_atom, 's', 't', 's', 'd'); | |
| 1697 | |
| 1698 #if (NGX_DEBUG) | |
| 1699 { | |
| 1700 uint32_t entries; | |
| 1701 | |
| 1702 entries = ngx_mp4_get_32value(stsd_atom->entries); | |
| 1703 | |
| 1704 if (entries) { | |
| 1705 /* codecs of interest: avc1 (H.264), mp4a (MPEG-4 audio) */ | |
| 1706 | |
| 1707 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 1708 "stsd entries:%uD, codec:%*s", |
| 4095 | 1709 entries, 4, |
| 1710 atom_header + sizeof(ngx_mp4_stsd_atom_t) + 4); | |
| 1711 | |
| 4085 | 1712 } |
| 1713 } | |
| 1714 #endif | |
| 1715 | |
| 1716 trak = ngx_mp4_last_trak(mp4); | |
| 1717 | |
| 1718 atom = &trak->stsd_atom_buf; | |
| 1719 atom->temporary = 1; | |
| 1720 atom->pos = atom_header; | |
| 1721 atom->last = atom_table; | |
| 1722 | |
| 1723 trak->out[NGX_HTTP_MP4_STSD_ATOM].buf = atom; | |
| 1724 trak->size += atom_size; | |
| 1725 | |
| 1726 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1727 | |
| 1728 return NGX_OK; | |
| 1729 } | |
| 1730 | |
| 1731 | |
| 1732 typedef struct { | |
| 1733 u_char size[4]; | |
| 1734 u_char name[4]; | |
| 1735 u_char version[1]; | |
| 1736 u_char flags[3]; | |
| 1737 u_char entries[4]; | |
| 1738 } ngx_mp4_stts_atom_t; | |
| 1739 | |
| 1740 typedef struct { | |
| 1741 u_char count[4]; | |
| 1742 u_char duration[4]; | |
| 1743 } ngx_mp4_stts_entry_t; | |
| 1744 | |
| 1745 | |
| 1746 static ngx_int_t | |
| 1747 ngx_http_mp4_read_stts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1748 { | |
| 1749 u_char *atom_header, *atom_table, *atom_end; | |
| 1750 uint32_t entries; | |
| 1751 ngx_buf_t *atom, *data; | |
| 1752 ngx_mp4_stts_atom_t *stts_atom; | |
| 1753 ngx_http_mp4_trak_t *trak; | |
| 1754 | |
| 1755 /* time-to-sample atom */ | |
| 1756 | |
| 1757 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stts atom"); | |
| 1758 | |
| 1759 atom_header = ngx_mp4_atom_header(mp4); | |
| 1760 stts_atom = (ngx_mp4_stts_atom_t *) atom_header; | |
| 1761 ngx_mp4_set_atom_name(stts_atom, 's', 't', 't', 's'); | |
| 1762 | |
| 1763 entries = ngx_mp4_get_32value(stts_atom->entries); | |
| 1764 | |
| 1765 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 1766 "mp4 time-to-sample entries:%uD", entries); |
| 4085 | 1767 |
| 1768 atom_table = atom_header + sizeof(ngx_mp4_stts_atom_t); | |
| 1769 atom_end = atom_table + entries * sizeof(ngx_mp4_stts_entry_t); | |
| 1770 | |
| 1771 if ((uint64_t) (atom_end - stts_atom->version) > atom_data_size) { | |
| 1772 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 1773 "\"%s\" mp4 stts atom too large", | |
| 1774 mp4->file.name.data); | |
| 1775 return NGX_ERROR; | |
| 1776 } | |
| 1777 | |
| 1778 trak = ngx_mp4_last_trak(mp4); | |
| 1779 trak->time_to_sample_entries = entries; | |
| 1780 | |
| 1781 atom = &trak->stts_atom_buf; | |
| 1782 atom->temporary = 1; | |
| 1783 atom->pos = atom_header; | |
| 1784 atom->last = atom_table; | |
| 1785 | |
| 1786 data = &trak->stts_data_buf; | |
| 1787 data->temporary = 1; | |
| 1788 data->pos = atom_table; | |
| 1789 data->last = atom_end; | |
| 1790 | |
| 1791 trak->out[NGX_HTTP_MP4_STTS_ATOM].buf = atom; | |
| 1792 trak->out[NGX_HTTP_MP4_STTS_DATA].buf = data; | |
| 1793 | |
| 1794 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1795 | |
| 1796 return NGX_OK; | |
| 1797 } | |
| 1798 | |
| 1799 | |
| 1800 static ngx_int_t | |
| 1801 ngx_http_mp4_update_stts_atom(ngx_http_mp4_file_t *mp4, | |
| 1802 ngx_http_mp4_trak_t *trak) | |
| 1803 { | |
| 1804 size_t atom_size; | |
| 1805 uint32_t entries, count, duration; | |
| 1806 uint64_t start_time; | |
| 1807 ngx_buf_t *atom, *data; | |
| 1808 ngx_uint_t start_sample; | |
| 1809 ngx_mp4_stts_atom_t *stts_atom; | |
| 1810 ngx_mp4_stts_entry_t *entry, *end; | |
| 1811 | |
| 1812 /* | |
| 1813 * mdia.minf.stbl.stts updating requires trak->timescale | |
| 1814 * from mdia.mdhd atom which may reside after mdia.minf | |
| 1815 */ | |
| 1816 | |
| 1817 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1818 "mp4 stts atom update"); | |
| 1819 | |
| 1820 data = trak->out[NGX_HTTP_MP4_STTS_DATA].buf; | |
| 1821 | |
| 1822 if (data == NULL) { | |
| 1823 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 1824 "no mp4 stts atoms were found in \"%s\"", | |
| 1825 mp4->file.name.data); | |
| 1826 return NGX_ERROR; | |
| 1827 } | |
| 1828 | |
| 1829 entries = trak->time_to_sample_entries; | |
| 1830 start_time = mp4->start * trak->timescale / 1000; | |
| 1831 | |
| 1832 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 1833 "time-to-sample start_time:%uL", start_time); |
| 4085 | 1834 |
| 1835 start_sample = 0; | |
| 1836 entry = (ngx_mp4_stts_entry_t *) data->pos; | |
| 1837 end = (ngx_mp4_stts_entry_t *) data->last; | |
| 1838 | |
| 1839 while (entry < end) { | |
| 1840 count = ngx_mp4_get_32value(entry->count); | |
| 1841 duration = ngx_mp4_get_32value(entry->duration); | |
| 1842 | |
| 1843 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1844 "count:%uD, duration:%uD", count, duration); | |
| 1845 | |
| 1846 if (start_time < count * duration) { | |
| 1847 start_sample += (ngx_uint_t) (start_time / duration); | |
| 1848 count -= start_sample; | |
| 1849 ngx_mp4_set_32value(entry->count, count); | |
| 1850 goto found; | |
| 1851 } | |
| 1852 | |
| 1853 start_sample += count; | |
| 1854 start_time -= count * duration; | |
| 1855 entries--; | |
| 1856 entry++; | |
| 1857 } | |
| 1858 | |
| 1859 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 4094 | 1860 "start time is out mp4 stts samples in \"%s\"", |
| 4085 | 1861 mp4->file.name.data); |
| 1862 | |
| 1863 return NGX_ERROR; | |
| 1864 | |
| 1865 found: | |
| 1866 | |
| 1867 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1868 "start_sample:%ui, new count:%uD", start_sample, count); | |
| 1869 | |
| 1870 trak->start_sample = start_sample; | |
| 1871 | |
| 1872 data->pos = (u_char *) entry; | |
| 1873 atom_size = sizeof(ngx_mp4_stts_atom_t) + (data->last - data->pos); | |
| 1874 trak->size += atom_size; | |
| 1875 | |
| 1876 atom = trak->out[NGX_HTTP_MP4_STTS_ATOM].buf; | |
| 1877 stts_atom = (ngx_mp4_stts_atom_t *) atom->pos; | |
| 1878 ngx_mp4_set_32value(stts_atom->size, atom_size); | |
| 1879 ngx_mp4_set_32value(stts_atom->entries, entries); | |
| 1880 | |
| 1881 return NGX_OK; | |
| 1882 } | |
| 1883 | |
| 1884 | |
| 1885 typedef struct { | |
| 1886 u_char size[4]; | |
| 1887 u_char name[4]; | |
| 1888 u_char version[1]; | |
| 1889 u_char flags[3]; | |
| 1890 u_char entries[4]; | |
| 1891 } ngx_http_mp4_stss_atom_t; | |
| 1892 | |
| 1893 | |
| 1894 static ngx_int_t | |
| 1895 ngx_http_mp4_read_stss_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1896 { | |
| 1897 u_char *atom_header, *atom_table, *atom_end; | |
| 1898 uint32_t entries; | |
| 1899 ngx_buf_t *atom, *data; | |
| 1900 ngx_http_mp4_trak_t *trak; | |
| 1901 ngx_http_mp4_stss_atom_t *stss_atom; | |
| 1902 | |
| 1903 /* sync samples atom */ | |
| 1904 | |
| 1905 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stss atom"); | |
| 1906 | |
| 1907 atom_header = ngx_mp4_atom_header(mp4); | |
| 1908 stss_atom = (ngx_http_mp4_stss_atom_t *) atom_header; | |
| 1909 ngx_mp4_set_atom_name(stss_atom, 's', 't', 's', 's'); | |
| 1910 | |
| 1911 entries = ngx_mp4_get_32value(stss_atom->entries); | |
| 1912 | |
| 1913 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 1914 "sync sample entries:%uD", entries); |
| 4085 | 1915 |
| 1916 trak = ngx_mp4_last_trak(mp4); | |
| 1917 trak->sync_samples_entries = entries; | |
| 1918 | |
| 1919 atom_table = atom_header + sizeof(ngx_http_mp4_stss_atom_t); | |
| 1920 | |
| 1921 atom = &trak->stss_atom_buf; | |
| 1922 atom->temporary = 1; | |
| 1923 atom->pos = atom_header; | |
| 1924 atom->last = atom_table; | |
| 1925 | |
| 1926 atom_end = atom_table + entries * sizeof(uint32_t); | |
| 1927 | |
| 1928 if ((uint64_t) (atom_end - stss_atom->version) > atom_data_size) { | |
| 1929 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 1930 "\"%s\" mp4 stss atom too large", mp4->file.name.data); | |
| 1931 return NGX_ERROR; | |
| 1932 } | |
| 1933 | |
| 1934 data = &trak->stss_data_buf; | |
| 1935 data->temporary = 1; | |
| 1936 data->pos = atom_table; | |
| 1937 data->last = atom_end; | |
| 1938 | |
| 1939 trak->out[NGX_HTTP_MP4_STSS_ATOM].buf = atom; | |
| 1940 trak->out[NGX_HTTP_MP4_STSS_DATA].buf = data; | |
| 1941 | |
| 1942 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1943 | |
| 1944 return NGX_OK; | |
| 1945 } | |
| 1946 | |
| 1947 | |
| 1948 static ngx_int_t | |
| 1949 ngx_http_mp4_update_stss_atom(ngx_http_mp4_file_t *mp4, | |
| 1950 ngx_http_mp4_trak_t *trak) | |
| 1951 { | |
| 1952 size_t atom_size; | |
| 1953 uint32_t entries, sample, start_sample, *entry, *end; | |
| 1954 ngx_buf_t *atom, *data; | |
| 1955 ngx_http_mp4_stss_atom_t *stss_atom; | |
| 1956 | |
| 1957 /* | |
| 1958 * mdia.minf.stbl.stss updating requires trak->start_sample | |
| 1959 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 1960 * atom which may reside after mdia.minf | |
| 1961 */ | |
| 1962 | |
| 1963 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1964 "mp4 stss atom update"); | |
| 1965 | |
| 1966 data = trak->out[NGX_HTTP_MP4_STSS_DATA].buf; | |
| 1967 | |
| 1968 if (data == NULL) { | |
| 1969 return NGX_OK; | |
| 1970 } | |
| 1971 | |
| 1972 /* sync samples starts from 1 */ | |
| 1973 start_sample = trak->start_sample + 1; | |
| 1974 entries = trak->sync_samples_entries; | |
| 1975 | |
| 1976 entry = (uint32_t *) data->pos; | |
| 1977 end = (uint32_t *) data->last; | |
| 1978 | |
| 1979 while (entry < end) { | |
| 1980 sample = ngx_mp4_get_32value(entry); | |
| 1981 | |
| 1982 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1983 "start:%uD, sync:%uD", start_sample, sample); | |
| 1984 | |
| 1985 if (sample >= start_sample) { | |
| 1986 goto found; | |
| 1987 } | |
| 1988 | |
| 1989 entries--; | |
| 1990 entry++; | |
| 1991 } | |
| 1992 | |
| 1993 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 1994 "start sample is out of mp4 stss atom in \"%s\"", | |
| 1995 mp4->file.name.data); | |
| 1996 | |
| 1997 return NGX_ERROR; | |
| 1998 | |
| 1999 found: | |
| 2000 | |
| 2001 data->pos = (u_char *) entry; | |
| 2002 | |
| 2003 start_sample = trak->start_sample; | |
| 2004 | |
| 2005 while (entry < end) { | |
| 2006 sample = ngx_mp4_get_32value(entry); | |
| 2007 sample -= start_sample; | |
| 2008 ngx_mp4_set_32value(entry, sample); | |
| 2009 entry++; | |
| 2010 } | |
| 2011 | |
| 2012 atom_size = sizeof(ngx_http_mp4_stss_atom_t) + (data->last - data->pos); | |
| 2013 trak->size += atom_size; | |
| 2014 | |
| 2015 atom = trak->out[NGX_HTTP_MP4_STSS_ATOM].buf; | |
| 2016 stss_atom = (ngx_http_mp4_stss_atom_t *) atom->pos; | |
| 2017 | |
| 2018 ngx_mp4_set_32value(stss_atom->size, atom_size); | |
| 2019 ngx_mp4_set_32value(stss_atom->entries, entries); | |
| 2020 | |
| 2021 return NGX_OK; | |
| 2022 } | |
| 2023 | |
| 2024 | |
| 2025 typedef struct { | |
| 2026 u_char size[4]; | |
| 2027 u_char name[4]; | |
| 2028 u_char version[1]; | |
| 2029 u_char flags[3]; | |
| 2030 u_char entries[4]; | |
| 2031 } ngx_mp4_ctts_atom_t; | |
| 2032 | |
| 2033 typedef struct { | |
| 2034 u_char count[4]; | |
| 2035 u_char offset[4]; | |
| 2036 } ngx_mp4_ctts_entry_t; | |
| 2037 | |
| 2038 | |
| 2039 static ngx_int_t | |
| 2040 ngx_http_mp4_read_ctts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2041 { | |
| 2042 u_char *atom_header, *atom_table, *atom_end; | |
| 2043 uint32_t entries; | |
| 2044 ngx_buf_t *atom, *data; | |
| 2045 ngx_mp4_ctts_atom_t *ctts_atom; | |
| 2046 ngx_http_mp4_trak_t *trak; | |
| 2047 | |
| 2048 /* composition offsets atom */ | |
| 2049 | |
| 2050 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 ctts atom"); | |
| 2051 | |
| 2052 atom_header = ngx_mp4_atom_header(mp4); | |
| 2053 ctts_atom = (ngx_mp4_ctts_atom_t *) atom_header; | |
| 2054 ngx_mp4_set_atom_name(ctts_atom, 'c', 't', 't', 's'); | |
| 2055 | |
| 2056 entries = ngx_mp4_get_32value(ctts_atom->entries); | |
| 2057 | |
| 2058 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 2059 "composition offset entries:%uD", entries); |
| 4085 | 2060 |
| 2061 trak = ngx_mp4_last_trak(mp4); | |
| 2062 trak->composition_offset_entries = entries; | |
| 2063 | |
| 2064 atom_table = atom_header + sizeof(ngx_mp4_ctts_atom_t); | |
| 2065 | |
| 2066 atom = &trak->ctts_atom_buf; | |
| 2067 atom->temporary = 1; | |
| 2068 atom->pos = atom_header; | |
| 2069 atom->last = atom_table; | |
| 2070 | |
| 2071 atom_end = atom_table + entries * sizeof(ngx_mp4_ctts_entry_t); | |
| 2072 | |
| 2073 if ((uint64_t) (atom_end - ctts_atom->version) > atom_data_size) { | |
| 2074 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2075 "\"%s\" mp4 ctts atom too large", mp4->file.name.data); | |
| 2076 return NGX_ERROR; | |
| 2077 } | |
| 2078 | |
| 2079 data = &trak->ctts_data_buf; | |
| 2080 data->temporary = 1; | |
| 2081 data->pos = atom_table; | |
| 2082 data->last = atom_end; | |
| 2083 | |
| 2084 trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf = atom; | |
| 2085 trak->out[NGX_HTTP_MP4_CTTS_DATA].buf = data; | |
| 2086 | |
| 2087 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2088 | |
| 2089 return NGX_OK; | |
| 2090 } | |
| 2091 | |
| 2092 | |
| 2093 static void | |
| 2094 ngx_http_mp4_update_ctts_atom(ngx_http_mp4_file_t *mp4, | |
| 2095 ngx_http_mp4_trak_t *trak) | |
| 2096 { | |
| 2097 size_t atom_size; | |
| 2098 uint32_t entries, count, start_sample; | |
| 2099 ngx_buf_t *atom, *data; | |
| 2100 ngx_mp4_ctts_atom_t *ctts_atom; | |
| 2101 ngx_mp4_ctts_entry_t *entry, *end; | |
| 2102 | |
| 2103 /* | |
| 2104 * mdia.minf.stbl.ctts updating requires trak->start_sample | |
| 2105 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2106 * atom which may reside after mdia.minf | |
| 2107 */ | |
| 2108 | |
| 2109 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2110 "mp4 ctts atom update"); | |
| 2111 | |
| 2112 data = trak->out[NGX_HTTP_MP4_CTTS_DATA].buf; | |
| 2113 | |
| 2114 if (data == NULL) { | |
| 2115 return; | |
| 2116 } | |
| 2117 | |
| 2118 /* sync samples starts from 1 */ | |
| 2119 start_sample = trak->start_sample + 1; | |
| 2120 entries = trak->composition_offset_entries; | |
| 2121 entry = (ngx_mp4_ctts_entry_t *) data->pos; | |
| 2122 end = (ngx_mp4_ctts_entry_t *) data->last; | |
| 2123 | |
| 2124 while (entry < end) { | |
| 2125 count = ngx_mp4_get_32value(entry->count); | |
| 2126 | |
|
4088
8fe1da7b8386
bugfix of r4086: nginx could not be built without debug log.
Igor Sysoev <igor@sysoev.ru>
parents:
4087
diff
changeset
|
2127 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 2128 "start:%uD, count:%uD, offset:%uD", |
| 2129 start_sample, count, ngx_mp4_get_32value(entry->offset)); | |
| 2130 | |
| 2131 if (start_sample <= count) { | |
| 2132 count -= (start_sample - 1); | |
| 2133 ngx_mp4_set_32value(entry->count, count); | |
| 2134 goto found; | |
| 2135 } | |
| 2136 | |
| 2137 start_sample -= count; | |
| 2138 entries--; | |
| 2139 entry++; | |
| 2140 } | |
| 2141 | |
| 2142 trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf = NULL; | |
| 2143 trak->out[NGX_HTTP_MP4_CTTS_DATA].buf = NULL; | |
| 2144 | |
| 2145 return; | |
| 2146 | |
| 2147 found: | |
| 2148 | |
| 2149 data->pos = (u_char *) entry; | |
| 2150 atom_size = sizeof(ngx_mp4_ctts_atom_t) + (data->last - data->pos); | |
| 2151 trak->size += atom_size; | |
| 2152 | |
| 2153 atom = trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf; | |
| 2154 ctts_atom = (ngx_mp4_ctts_atom_t *) atom->pos; | |
| 2155 | |
| 2156 ngx_mp4_set_32value(ctts_atom->size, atom_size); | |
| 2157 ngx_mp4_set_32value(ctts_atom->entries, entries); | |
| 2158 | |
| 2159 return; | |
| 2160 } | |
| 2161 | |
| 2162 | |
| 2163 typedef struct { | |
| 2164 u_char size[4]; | |
| 2165 u_char name[4]; | |
| 2166 u_char version[1]; | |
| 2167 u_char flags[3]; | |
| 2168 u_char entries[4]; | |
| 2169 } ngx_mp4_stsc_atom_t; | |
| 2170 | |
| 2171 | |
| 2172 static ngx_int_t | |
| 2173 ngx_http_mp4_read_stsc_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2174 { | |
| 2175 u_char *atom_header, *atom_table, *atom_end; | |
| 2176 uint32_t entries; | |
| 2177 ngx_buf_t *atom, *data; | |
| 2178 ngx_mp4_stsc_atom_t *stsc_atom; | |
| 2179 ngx_http_mp4_trak_t *trak; | |
| 2180 | |
| 2181 /* sample-to-chunk atom */ | |
| 2182 | |
| 2183 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsc atom"); | |
| 2184 | |
| 2185 atom_header = ngx_mp4_atom_header(mp4); | |
| 2186 stsc_atom = (ngx_mp4_stsc_atom_t *) atom_header; | |
| 2187 ngx_mp4_set_atom_name(stsc_atom, 's', 't', 's', 'c'); | |
| 2188 | |
| 2189 entries = ngx_mp4_get_32value(stsc_atom->entries); | |
| 2190 | |
| 2191 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 2192 "sample-to-chunk entries:%uD", entries); |
| 4085 | 2193 |
| 2194 atom_table = atom_header + sizeof(ngx_mp4_stsc_atom_t); | |
| 2195 atom_end = atom_table + entries * sizeof(ngx_mp4_stsc_entry_t); | |
| 2196 | |
| 2197 if ((uint64_t) (atom_end - stsc_atom->version) > atom_data_size) { | |
| 2198 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2199 "\"%s\" mp4 stsc atom too large", | |
| 2200 mp4->file.name.data); | |
| 2201 return NGX_ERROR; | |
| 2202 } | |
| 2203 | |
| 2204 trak = ngx_mp4_last_trak(mp4); | |
| 2205 trak->sample_to_chunk_entries = entries; | |
| 2206 | |
| 2207 atom = &trak->stsc_atom_buf; | |
| 2208 atom->temporary = 1; | |
| 2209 atom->pos = atom_header; | |
| 2210 atom->last = atom_table; | |
| 2211 | |
| 2212 data = &trak->stsc_data_buf; | |
| 2213 data->temporary = 1; | |
| 2214 data->pos = atom_table; | |
| 2215 data->last = atom_end; | |
| 2216 | |
| 2217 trak->out[NGX_HTTP_MP4_STSC_ATOM].buf = atom; | |
| 2218 trak->out[NGX_HTTP_MP4_STSC_DATA].buf = data; | |
| 2219 | |
| 2220 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2221 | |
| 2222 return NGX_OK; | |
| 2223 } | |
| 2224 | |
| 2225 | |
| 2226 static ngx_int_t | |
| 2227 ngx_http_mp4_update_stsc_atom(ngx_http_mp4_file_t *mp4, | |
| 2228 ngx_http_mp4_trak_t *trak) | |
| 2229 { | |
| 2230 size_t atom_size; | |
|
4098
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Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
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|
2231 uint32_t start_sample, entries, chunk, samples, id, |
|
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|
2232 next_chunk, n; |
|
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parents:
4096
diff
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|
2233 ngx_buf_t *atom, *data, *buf; |
| 4085 | 2234 ngx_mp4_stsc_atom_t *stsc_atom; |
|
4098
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Fix of case when start sample does not reside on chunk boundary.
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diff
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|
2235 ngx_mp4_stsc_entry_t *entry, *first, *end; |
| 4085 | 2236 |
| 2237 /* | |
| 2238 * mdia.minf.stbl.stsc updating requires trak->start_sample | |
| 2239 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2240 * atom which may reside after mdia.minf | |
| 2241 */ | |
| 2242 | |
| 2243 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2244 "mp4 stsc atom update"); | |
| 2245 | |
| 2246 data = trak->out[NGX_HTTP_MP4_STSC_DATA].buf; | |
| 2247 | |
| 2248 if (data == NULL) { | |
| 2249 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2250 "no mp4 stsc atoms were found in \"%s\"", | |
| 2251 mp4->file.name.data); | |
| 2252 return NGX_ERROR; | |
| 2253 } | |
| 2254 | |
|
4098
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|
2255 start_sample = (uint32_t) trak->start_sample; |
|
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|
2256 entries = trak->sample_to_chunk_entries - 1; |
|
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|
2257 |
| 4085 | 2258 entry = (ngx_mp4_stsc_entry_t *) data->pos; |
| 2259 end = (ngx_mp4_stsc_entry_t *) data->last; | |
| 2260 | |
|
4098
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|
2261 chunk = ngx_mp4_get_32value(entry->chunk); |
|
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|
2262 samples = ngx_mp4_get_32value(entry->samples); |
|
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|
2263 id = ngx_mp4_get_32value(entry->id); |
|
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|
2264 entry++; |
|
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|
2265 |
| 4085 | 2266 while (entry < end) { |
| 2267 | |
|
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|
2268 next_chunk = ngx_mp4_get_32value(entry->chunk); |
|
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|
2269 |
|
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|
2270 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
|
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2271 "start_sample:%uD, chunk:%uD, chunks:%uD, " |
|
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|
2272 "samples:%uD, id:%uD", |
|
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|
2273 start_sample, chunk, next_chunk - chunk, samples, id); |
|
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|
2274 |
|
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|
2275 n = (next_chunk - chunk) * samples; |
|
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|
2276 |
|
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|
2277 if (start_sample <= n) { |
| 4085 | 2278 goto found; |
| 2279 } | |
| 2280 | |
|
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|
2281 start_sample -= n; |
|
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|
2282 |
|
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|
2283 chunk = next_chunk; |
|
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|
2284 samples = ngx_mp4_get_32value(entry->samples); |
|
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|
2285 id = ngx_mp4_get_32value(entry->id); |
| 4085 | 2286 entries--; |
| 2287 entry++; | |
| 2288 } | |
| 2289 | |
|
4098
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|
2290 next_chunk = trak->chunks; |
|
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|
2291 |
|
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|
2292 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
|
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|
2293 "start_sample:%uD, chunk:%uD, chunks:%uD, samples:%uD", |
|
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|
2294 start_sample, chunk, next_chunk - chunk, samples); |
|
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|
2295 |
|
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|
2296 n = (next_chunk - chunk) * samples; |
|
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|
2297 |
|
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|
2298 if (start_sample > n) { |
|
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|
2299 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
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|
2300 "start time is out mp4 stsc chunks in \"%s\"", |
|
a3e07fab98a3
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|
2301 mp4->file.name.data); |
|
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|
2302 return NGX_ERROR; |
|
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|
2303 } |
|
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|
2304 |
|
a3e07fab98a3
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|
2305 found: |
|
a3e07fab98a3
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|
2306 |
| 4085 | 2307 entries++; |
| 2308 entry--; | |
| 2309 | |
|
4098
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|
2310 if (samples == 0) { |
|
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|
2311 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
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|
2312 "zero number of samples in \"%s\"", |
|
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|
2313 mp4->file.name.data); |
|
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|
2314 return NGX_ERROR; |
|
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|
2315 } |
|
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|
2316 |
|
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|
2317 trak->start_chunk = chunk - 1; |
|
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|
2318 |
|
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|
2319 trak->start_chunk += start_sample / samples; |
|
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|
2320 trak->chunk_samples = start_sample % samples; |
|
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|
2321 |
|
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Fix of case when start sample does not reside on chunk boundary.
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|
2322 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
|
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|
2323 "start chunk:%ui, samples:%uD", |
|
a3e07fab98a3
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|
2324 trak->start_chunk, trak->chunk_samples); |
| 4085 | 2325 |
| 2326 data->pos = (u_char *) entry; | |
| 2327 atom_size = sizeof(ngx_mp4_stsc_atom_t) + (data->last - data->pos); | |
|
4098
a3e07fab98a3
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|
2328 |
|
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|
2329 if (trak->chunk_samples) { |
|
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|
2330 |
|
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|
2331 first = &trak->stsc_chunk_entry; |
|
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|
2332 ngx_mp4_set_32value(first->chunk, 1); |
|
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|
2333 ngx_mp4_set_32value(first->samples, samples - trak->chunk_samples); |
|
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|
2334 ngx_mp4_set_32value(first->id, id); |
|
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|
2335 |
|
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|
2336 buf = &trak->stsc_chunk_buf; |
|
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|
2337 buf->temporary = 1; |
|
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|
2338 buf->pos = (u_char *) first; |
|
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|
2339 buf->last = (u_char *) first + sizeof(ngx_mp4_stsc_entry_t); |
|
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|
2340 |
|
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|
2341 trak->out[NGX_HTTP_MP4_STSC_CHUNK].buf = buf; |
|
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|
2342 |
|
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|
2343 ngx_mp4_set_32value(entry->chunk, 2); |
|
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|
2344 |
|
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2345 atom_size += sizeof(ngx_mp4_stsc_entry_t); |
|
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|
2346 } |
|
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|
2347 |
|
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|
2348 while (++entry < end) { |
|
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|
2349 chunk = ngx_mp4_get_32value(entry->chunk); |
|
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|
2350 chunk -= trak->start_chunk; |
|
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|
2351 ngx_mp4_set_32value(entry->chunk, chunk); |
|
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|
2352 } |
|
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|
2353 |
| 4085 | 2354 trak->size += atom_size; |
| 2355 | |
| 2356 atom = trak->out[NGX_HTTP_MP4_STSC_ATOM].buf; | |
| 2357 stsc_atom = (ngx_mp4_stsc_atom_t *) atom->pos; | |
| 2358 | |
| 2359 ngx_mp4_set_32value(stsc_atom->size, atom_size); | |
| 2360 ngx_mp4_set_32value(stsc_atom->entries, entries); | |
| 2361 | |
| 2362 return NGX_OK; | |
| 2363 } | |
| 2364 | |
| 2365 | |
| 2366 typedef struct { | |
| 2367 u_char size[4]; | |
| 2368 u_char name[4]; | |
| 2369 u_char version[1]; | |
| 2370 u_char flags[3]; | |
| 2371 u_char uniform_size[4]; | |
| 2372 u_char entries[4]; | |
| 2373 } ngx_mp4_stsz_atom_t; | |
| 2374 | |
| 2375 | |
| 2376 static ngx_int_t | |
| 2377 ngx_http_mp4_read_stsz_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2378 { | |
| 2379 u_char *atom_header, *atom_table, *atom_end; | |
| 2380 size_t atom_size; | |
| 2381 uint32_t entries, size; | |
| 2382 ngx_buf_t *atom, *data; | |
| 2383 ngx_mp4_stsz_atom_t *stsz_atom; | |
| 2384 ngx_http_mp4_trak_t *trak; | |
| 2385 | |
| 2386 /* sample sizes atom */ | |
| 2387 | |
| 2388 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsz atom"); | |
| 2389 | |
| 2390 atom_header = ngx_mp4_atom_header(mp4); | |
| 2391 stsz_atom = (ngx_mp4_stsz_atom_t *) atom_header; | |
| 2392 ngx_mp4_set_atom_name(stsz_atom, 's', 't', 's', 'z'); | |
| 2393 | |
| 2394 size = ngx_mp4_get_32value(stsz_atom->uniform_size); | |
| 2395 entries = ngx_mp4_get_32value(stsz_atom->entries); | |
| 2396 | |
| 2397 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2398 "sample uniform size:%uD, entries:%uD", size, entries); | |
| 2399 | |
| 2400 trak = ngx_mp4_last_trak(mp4); | |
| 2401 trak->sample_sizes_entries = entries; | |
| 2402 | |
| 2403 atom_table = atom_header + sizeof(ngx_mp4_stsz_atom_t); | |
| 2404 | |
| 2405 atom = &trak->stsz_atom_buf; | |
| 2406 atom->temporary = 1; | |
| 2407 atom->pos = atom_header; | |
| 2408 atom->last = atom_table; | |
| 2409 | |
| 2410 trak->out[NGX_HTTP_MP4_STSZ_ATOM].buf = atom; | |
| 2411 | |
| 2412 if (size == 0) { | |
| 2413 atom_end = atom_table + entries * sizeof(uint32_t); | |
| 2414 | |
| 2415 if ((uint64_t) (atom_end - stsz_atom->version) > atom_data_size) { | |
| 2416 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2417 "\"%s\" mp4 stsz atom too large", | |
| 2418 mp4->file.name.data); | |
| 2419 return NGX_ERROR; | |
| 2420 } | |
| 2421 | |
| 2422 data = &trak->stsz_data_buf; | |
| 2423 data->temporary = 1; | |
| 2424 data->pos = atom_table; | |
| 2425 data->last = atom_end; | |
| 2426 | |
| 2427 trak->out[NGX_HTTP_MP4_STSZ_DATA].buf = data; | |
| 2428 | |
| 2429 } else { | |
| 2430 /* if size != 0 then all samples are the same size */ | |
|
4098
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
2431 /* TODO : chunk samples */ |
| 4085 | 2432 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; |
| 2433 ngx_mp4_set_32value(atom_header, atom_size); | |
| 2434 trak->size += atom_size; | |
| 2435 } | |
| 2436 | |
| 2437 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2438 | |
| 2439 return NGX_OK; | |
| 2440 } | |
| 2441 | |
| 2442 | |
| 2443 static void | |
| 2444 ngx_http_mp4_update_stsz_atom(ngx_http_mp4_file_t *mp4, | |
| 2445 ngx_http_mp4_trak_t *trak) | |
| 2446 { | |
| 2447 size_t atom_size; | |
|
4098
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parents:
4096
diff
changeset
|
2448 uint32_t *pos, *end; |
| 4085 | 2449 ngx_buf_t *atom, *data; |
| 2450 ngx_mp4_stsz_atom_t *stsz_atom; | |
| 2451 | |
| 2452 /* | |
| 2453 * mdia.minf.stbl.stsz updating requires trak->start_sample | |
| 2454 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2455 * atom which may reside after mdia.minf | |
| 2456 */ | |
| 2457 | |
| 2458 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2459 "mp4 stsz atom update"); | |
| 2460 | |
| 2461 data = trak->out[NGX_HTTP_MP4_STSZ_DATA].buf; | |
| 2462 | |
| 2463 if (data) { | |
| 2464 data->pos += trak->start_sample * sizeof(uint32_t); | |
|
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parents:
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diff
changeset
|
2465 end = (uint32_t *) data->pos; |
|
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parents:
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diff
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|
2466 |
|
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parents:
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diff
changeset
|
2467 for (pos = end - trak->chunk_samples; pos < end; pos++) { |
|
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parents:
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diff
changeset
|
2468 trak->chunk_samples_size += ngx_mp4_get_32value(pos); |
|
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parents:
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diff
changeset
|
2469 } |
|
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parents:
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diff
changeset
|
2470 |
|
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parents:
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diff
changeset
|
2471 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
|
a3e07fab98a3
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parents:
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diff
changeset
|
2472 "chunk samples sizes:%uD", trak->chunk_samples_size); |
|
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diff
changeset
|
2473 |
| 4085 | 2474 atom_size = sizeof(ngx_mp4_stsz_atom_t) + (data->last - data->pos); |
| 2475 trak->size += atom_size; | |
| 2476 | |
| 2477 atom = trak->out[NGX_HTTP_MP4_STSZ_ATOM].buf; | |
| 2478 stsz_atom = (ngx_mp4_stsz_atom_t *) atom->pos; | |
| 2479 | |
| 2480 ngx_mp4_set_32value(stsz_atom->size, atom_size); | |
| 2481 ngx_mp4_set_32value(stsz_atom->entries, | |
| 2482 trak->sample_sizes_entries - trak->start_sample); | |
| 2483 } | |
| 2484 } | |
| 2485 | |
| 2486 | |
| 2487 typedef struct { | |
| 2488 u_char size[4]; | |
| 2489 u_char name[4]; | |
| 2490 u_char version[1]; | |
| 2491 u_char flags[3]; | |
| 2492 u_char entries[4]; | |
| 2493 } ngx_mp4_stco_atom_t; | |
| 2494 | |
| 2495 | |
| 2496 static ngx_int_t | |
| 2497 ngx_http_mp4_read_stco_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2498 { | |
| 2499 u_char *atom_header, *atom_table, *atom_end; | |
| 2500 uint32_t entries; | |
| 2501 ngx_buf_t *atom, *data; | |
| 2502 ngx_mp4_stco_atom_t *stco_atom; | |
| 2503 ngx_http_mp4_trak_t *trak; | |
| 2504 | |
| 2505 /* chunk offsets atom */ | |
| 2506 | |
| 2507 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stco atom"); | |
| 2508 | |
| 2509 atom_header = ngx_mp4_atom_header(mp4); | |
| 2510 stco_atom = (ngx_mp4_stco_atom_t *) atom_header; | |
| 2511 ngx_mp4_set_atom_name(stco_atom, 's', 't', 'c', 'o'); | |
| 2512 | |
| 2513 entries = ngx_mp4_get_32value(stco_atom->entries); | |
| 2514 | |
| 2515 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "chunks:%uD", entries); | |
| 2516 | |
| 2517 atom_table = atom_header + sizeof(ngx_mp4_stco_atom_t); | |
| 2518 atom_end = atom_table + entries * sizeof(uint32_t); | |
| 2519 | |
| 2520 if ((uint64_t) (atom_end - stco_atom->version) > atom_data_size) { | |
| 2521 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2522 "\"%s\" mp4 stco atom too large", mp4->file.name.data); | |
| 2523 return NGX_ERROR; | |
| 2524 } | |
| 2525 | |
| 2526 trak = ngx_mp4_last_trak(mp4); | |
| 2527 trak->chunks = entries; | |
| 2528 | |
| 2529 atom = &trak->tsco_atom_buf; | |
| 2530 atom->temporary = 1; | |
| 2531 atom->pos = atom_header; | |
| 2532 atom->last = atom_table; | |
| 2533 | |
| 2534 data = &trak->tsco_data_buf; | |
| 2535 data->temporary = 1; | |
| 2536 data->pos = atom_table; | |
| 2537 data->last = atom_end; | |
| 2538 | |
| 2539 trak->out[NGX_HTTP_MP4_STCO_ATOM].buf = atom; | |
| 2540 trak->out[NGX_HTTP_MP4_STCO_DATA].buf = data; | |
| 2541 | |
| 2542 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2543 | |
| 2544 return NGX_OK; | |
| 2545 } | |
| 2546 | |
| 2547 | |
| 2548 static ngx_int_t | |
| 2549 ngx_http_mp4_update_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 2550 ngx_http_mp4_trak_t *trak) | |
| 2551 { | |
| 2552 size_t atom_size; | |
| 2553 ngx_buf_t *atom, *data; | |
| 2554 ngx_mp4_stco_atom_t *stco_atom; | |
| 2555 | |
| 2556 /* | |
| 2557 * mdia.minf.stbl.stco updating requires trak->start_chunk | |
| 2558 * from mdia.minf.stbl.stsc which depends on value from mdia.mdhd | |
| 2559 * atom which may reside after mdia.minf | |
| 2560 */ | |
| 2561 | |
| 2562 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2563 "mp4 stco atom update"); | |
| 2564 | |
| 2565 data = trak->out[NGX_HTTP_MP4_STCO_DATA].buf; | |
| 2566 | |
| 2567 if (data == NULL) { | |
| 2568 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2569 "no mp4 stco atoms were found in \"%s\"", | |
| 2570 mp4->file.name.data); | |
| 2571 return NGX_ERROR; | |
| 2572 } | |
| 2573 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2574 data->pos += trak->start_chunk * sizeof(uint32_t); |
| 4085 | 2575 atom_size = sizeof(ngx_mp4_stco_atom_t) + (data->last - data->pos); |
| 2576 trak->size += atom_size; | |
| 2577 | |
| 2578 trak->start_offset = ngx_mp4_get_32value(data->pos); | |
|
4098
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parents:
4096
diff
changeset
|
2579 trak->start_offset += trak->chunk_samples_size; |
|
a3e07fab98a3
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Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2580 ngx_mp4_set_32value(data->pos, trak->start_offset); |
| 4085 | 2581 |
| 2582 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2583 "start chunk offset:%uD", trak->start_offset); | |
| 2584 | |
| 2585 atom = trak->out[NGX_HTTP_MP4_STCO_ATOM].buf; | |
| 2586 stco_atom = (ngx_mp4_stco_atom_t *) atom->pos; | |
| 2587 | |
| 2588 ngx_mp4_set_32value(stco_atom->size, atom_size); | |
|
4098
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parents:
4096
diff
changeset
|
2589 ngx_mp4_set_32value(stco_atom->entries, trak->chunks - trak->start_chunk); |
| 4085 | 2590 |
| 2591 return NGX_OK; | |
| 2592 } | |
| 2593 | |
| 2594 | |
| 2595 static void | |
| 2596 ngx_http_mp4_adjust_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 2597 ngx_http_mp4_trak_t *trak, int32_t adjustment) | |
| 2598 { | |
| 2599 uint32_t offset, *entry, *end; | |
| 2600 ngx_buf_t *data; | |
| 2601 | |
| 2602 /* | |
| 2603 * moov.trak.mdia.minf.stbl.stco adjustment requires | |
| 2604 * minimal start offset of all traks and new moov atom size | |
| 2605 */ | |
| 2606 | |
| 2607 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2608 "mp4 stco atom adjustment"); | |
| 2609 | |
| 2610 data = trak->out[NGX_HTTP_MP4_STCO_DATA].buf; | |
| 2611 entry = (uint32_t *) data->pos; | |
| 2612 end = (uint32_t *) data->last; | |
| 2613 | |
| 2614 while (entry < end) { | |
| 2615 offset = ngx_mp4_get_32value(entry); | |
| 2616 offset += adjustment; | |
| 2617 ngx_mp4_set_32value(entry, offset); | |
| 2618 entry++; | |
| 2619 } | |
| 2620 } | |
| 2621 | |
| 2622 | |
| 2623 static char * | |
| 2624 ngx_http_mp4(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 2625 { | |
| 2626 ngx_http_core_loc_conf_t *clcf; | |
| 2627 | |
| 2628 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 2629 clcf->handler = ngx_http_mp4_handler; | |
| 2630 | |
| 2631 return NGX_CONF_OK; | |
| 2632 } | |
| 2633 | |
| 2634 | |
| 2635 static void * | |
| 2636 ngx_http_mp4_create_conf(ngx_conf_t *cf) | |
| 2637 { | |
| 2638 ngx_http_mp4_conf_t *conf; | |
| 2639 | |
| 2640 conf = ngx_palloc(cf->pool, sizeof(ngx_http_mp4_conf_t)); | |
| 2641 if (conf == NULL) { | |
| 2642 return NULL; | |
| 2643 } | |
| 2644 | |
| 2645 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
|
2646 conf->max_buffer_size = NGX_CONF_UNSET_SIZE; |
| 4085 | 2647 |
| 2648 return conf; | |
| 2649 } | |
| 2650 | |
| 2651 | |
| 2652 static char * | |
| 2653 ngx_http_mp4_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 2654 { | |
| 2655 ngx_http_mp4_conf_t *prev = parent; | |
| 2656 ngx_http_mp4_conf_t *conf = child; | |
| 2657 | |
| 2658 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
|
2659 ngx_conf_merge_size_value(conf->max_buffer_size, prev->max_buffer_size, |
| 4085 | 2660 10 * 1024 * 1024); |
| 2661 | |
| 2662 return NGX_CONF_OK; | |
| 2663 } |