Mercurial > hg > nginx
annotate src/http/modules/ngx_http_mp4_module.c @ 4402:b20019ecfdcc
Fixed handling of mp4 above 2G and 32bit offsets (ticket #84).
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Mon, 16 Jan 2012 11:03:27 +0000 |
| parents | b4d54fa76853 |
| children | d620f497c50f |
| 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 |
| 4112 | 35 #define NGX_HTTP_MP4_CO64_ATOM 24 |
| 36 #define NGX_HTTP_MP4_CO64_DATA 25 | |
| 37 | |
| 38 #define NGX_HTTP_MP4_LAST_ATOM NGX_HTTP_MP4_CO64_DATA | |
| 4085 | 39 |
| 40 | |
| 41 typedef struct { | |
| 42 size_t buffer_size; | |
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43 size_t max_buffer_size; |
| 4085 | 44 } ngx_http_mp4_conf_t; |
| 45 | |
| 46 | |
| 47 typedef struct { | |
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48 u_char chunk[4]; |
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49 u_char samples[4]; |
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50 u_char id[4]; |
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51 } ngx_mp4_stsc_entry_t; |
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52 |
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53 |
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parents:
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54 typedef struct { |
| 4085 | 55 uint32_t timescale; |
| 56 uint32_t time_to_sample_entries; | |
| 57 uint32_t sample_to_chunk_entries; | |
| 58 uint32_t sync_samples_entries; | |
| 59 uint32_t composition_offset_entries; | |
| 60 uint32_t sample_sizes_entries; | |
| 61 uint32_t chunks; | |
| 62 | |
| 63 ngx_uint_t start_sample; | |
| 64 ngx_uint_t start_chunk; | |
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parents:
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65 ngx_uint_t chunk_samples; |
| 4112 | 66 uint64_t chunk_samples_size; |
| 4085 | 67 off_t start_offset; |
| 68 | |
| 69 size_t tkhd_size; | |
| 70 size_t mdhd_size; | |
| 71 size_t hdlr_size; | |
| 72 size_t vmhd_size; | |
| 73 size_t smhd_size; | |
| 74 size_t dinf_size; | |
| 75 size_t size; | |
| 76 | |
| 77 ngx_chain_t out[NGX_HTTP_MP4_LAST_ATOM + 1]; | |
| 78 | |
| 79 ngx_buf_t trak_atom_buf; | |
| 80 ngx_buf_t tkhd_atom_buf; | |
| 81 ngx_buf_t mdia_atom_buf; | |
| 82 ngx_buf_t mdhd_atom_buf; | |
| 83 ngx_buf_t hdlr_atom_buf; | |
| 84 ngx_buf_t minf_atom_buf; | |
| 85 ngx_buf_t vmhd_atom_buf; | |
| 86 ngx_buf_t smhd_atom_buf; | |
| 87 ngx_buf_t dinf_atom_buf; | |
| 88 ngx_buf_t stbl_atom_buf; | |
| 89 ngx_buf_t stsd_atom_buf; | |
| 90 ngx_buf_t stts_atom_buf; | |
| 91 ngx_buf_t stts_data_buf; | |
| 92 ngx_buf_t stss_atom_buf; | |
| 93 ngx_buf_t stss_data_buf; | |
| 94 ngx_buf_t ctts_atom_buf; | |
| 95 ngx_buf_t ctts_data_buf; | |
| 96 ngx_buf_t stsc_atom_buf; | |
|
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parents:
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97 ngx_buf_t stsc_chunk_buf; |
| 4085 | 98 ngx_buf_t stsc_data_buf; |
| 99 ngx_buf_t stsz_atom_buf; | |
| 100 ngx_buf_t stsz_data_buf; | |
| 4107 | 101 ngx_buf_t stco_atom_buf; |
| 102 ngx_buf_t stco_data_buf; | |
| 4112 | 103 ngx_buf_t co64_atom_buf; |
| 104 ngx_buf_t co64_data_buf; | |
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105 |
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parents:
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106 ngx_mp4_stsc_entry_t stsc_chunk_entry; |
| 4085 | 107 } ngx_http_mp4_trak_t; |
| 108 | |
| 109 | |
| 110 typedef struct { | |
| 111 ngx_file_t file; | |
| 112 | |
| 113 u_char *buffer; | |
| 114 u_char *buffer_start; | |
| 115 u_char *buffer_pos; | |
| 116 u_char *buffer_end; | |
| 117 size_t buffer_size; | |
| 118 | |
| 119 off_t offset; | |
| 120 off_t end; | |
| 121 off_t content_length; | |
| 122 ngx_uint_t start; | |
| 123 uint32_t timescale; | |
| 124 ngx_http_request_t *request; | |
| 125 ngx_array_t trak; | |
| 126 ngx_http_mp4_trak_t traks[2]; | |
| 127 | |
| 128 size_t ftyp_size; | |
| 129 size_t moov_size; | |
| 130 | |
| 131 ngx_chain_t *out; | |
| 132 ngx_chain_t ftyp_atom; | |
| 133 ngx_chain_t moov_atom; | |
| 134 ngx_chain_t mvhd_atom; | |
| 135 ngx_chain_t mdat_atom; | |
| 136 ngx_chain_t mdat_data; | |
| 137 | |
| 138 ngx_buf_t ftyp_atom_buf; | |
| 139 ngx_buf_t moov_atom_buf; | |
| 140 ngx_buf_t mvhd_atom_buf; | |
| 141 ngx_buf_t mdat_atom_buf; | |
| 142 ngx_buf_t mdat_data_buf; | |
| 143 | |
| 144 u_char moov_atom_header[8]; | |
| 145 u_char mdat_atom_header[16]; | |
| 146 } ngx_http_mp4_file_t; | |
| 147 | |
| 148 | |
| 149 typedef struct { | |
| 150 char *name; | |
| 151 ngx_int_t (*handler)(ngx_http_mp4_file_t *mp4, | |
| 152 uint64_t atom_data_size); | |
| 153 } ngx_http_mp4_atom_handler_t; | |
| 154 | |
| 155 | |
| 156 #define ngx_mp4_atom_header(mp4) (mp4->buffer_pos - 8) | |
| 157 #define ngx_mp4_atom_data(mp4) mp4->buffer_pos | |
| 158 #define ngx_mp4_atom_next(mp4, n) mp4->buffer_pos += n; mp4->offset += n | |
| 159 | |
| 160 | |
| 161 #define ngx_mp4_set_atom_name(p, n1, n2, n3, n4) \ | |
| 162 ((u_char *) (p))[4] = n1; \ | |
| 163 ((u_char *) (p))[5] = n2; \ | |
| 164 ((u_char *) (p))[6] = n3; \ | |
| 165 ((u_char *) (p))[7] = n4 | |
| 166 | |
| 167 #define ngx_mp4_get_32value(p) \ | |
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Fixed handling of mp4 above 2G and 32bit offsets (ticket #84).
Maxim Dounin <mdounin@mdounin.ru>
parents:
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168 ( ((uint32_t) ((u_char *) (p))[0] << 24) \ |
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Fixed handling of mp4 above 2G and 32bit offsets (ticket #84).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4382
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169 + ( ((u_char *) (p))[1] << 16) \ |
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b20019ecfdcc
Fixed handling of mp4 above 2G and 32bit offsets (ticket #84).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4382
diff
changeset
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170 + ( ((u_char *) (p))[2] << 8) \ |
|
b20019ecfdcc
Fixed handling of mp4 above 2G and 32bit offsets (ticket #84).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4382
diff
changeset
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171 + ( ((u_char *) (p))[3]) ) |
| 4085 | 172 |
| 173 #define ngx_mp4_set_32value(p, n) \ | |
| 174 ((u_char *) (p))[0] = (u_char) ((n) >> 24); \ | |
| 175 ((u_char *) (p))[1] = (u_char) ((n) >> 16); \ | |
| 176 ((u_char *) (p))[2] = (u_char) ((n) >> 8); \ | |
| 177 ((u_char *) (p))[3] = (u_char) (n) | |
| 178 | |
| 179 #define ngx_mp4_get_64value(p) \ | |
| 180 ( ((uint64_t) ((u_char *) (p))[0] << 56) \ | |
| 181 + ((uint64_t) ((u_char *) (p))[1] << 48) \ | |
| 182 + ((uint64_t) ((u_char *) (p))[2] << 40) \ | |
| 183 + ((uint64_t) ((u_char *) (p))[3] << 32) \ | |
| 184 + ((uint64_t) ((u_char *) (p))[4] << 24) \ | |
| 185 + ( ((u_char *) (p))[5] << 16) \ | |
| 186 + ( ((u_char *) (p))[6] << 8) \ | |
| 187 + ( ((u_char *) (p))[7]) ) | |
| 188 | |
| 189 #define ngx_mp4_set_64value(p, n) \ | |
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190 ((u_char *) (p))[0] = (u_char) ((uint64_t) (n) >> 56); \ |
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parents:
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191 ((u_char *) (p))[1] = (u_char) ((uint64_t) (n) >> 48); \ |
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d9636bf3f159
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Igor Sysoev <igor@sysoev.ru>
parents:
4112
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192 ((u_char *) (p))[2] = (u_char) ((uint64_t) (n) >> 40); \ |
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d9636bf3f159
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Igor Sysoev <igor@sysoev.ru>
parents:
4112
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193 ((u_char *) (p))[3] = (u_char) ((uint64_t) (n) >> 32); \ |
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d9636bf3f159
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Igor Sysoev <igor@sysoev.ru>
parents:
4112
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194 ((u_char *) (p))[4] = (u_char) ( (n) >> 24); \ |
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d9636bf3f159
Fix of building on platforms with 32-bit off_t. (closed #23)
Igor Sysoev <igor@sysoev.ru>
parents:
4112
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changeset
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195 ((u_char *) (p))[5] = (u_char) ( (n) >> 16); \ |
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d9636bf3f159
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Igor Sysoev <igor@sysoev.ru>
parents:
4112
diff
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196 ((u_char *) (p))[6] = (u_char) ( (n) >> 8); \ |
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d9636bf3f159
Fix of building on platforms with 32-bit off_t. (closed #23)
Igor Sysoev <igor@sysoev.ru>
parents:
4112
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197 ((u_char *) (p))[7] = (u_char) (n) |
| 4085 | 198 |
| 199 #define ngx_mp4_last_trak(mp4) \ | |
| 200 &((ngx_http_mp4_trak_t *) mp4->trak.elts)[mp4->trak.nelts - 1] | |
| 201 | |
| 202 | |
| 203 static ngx_int_t ngx_http_mp4_process(ngx_http_mp4_file_t *mp4); | |
| 204 static ngx_int_t ngx_http_mp4_read_atom(ngx_http_mp4_file_t *mp4, | |
| 205 ngx_http_mp4_atom_handler_t *atom, uint64_t atom_data_size); | |
| 206 static ngx_int_t ngx_http_mp4_read(ngx_http_mp4_file_t *mp4); | |
| 207 static ngx_int_t ngx_http_mp4_read_ftyp_atom(ngx_http_mp4_file_t *mp4, | |
| 208 uint64_t atom_data_size); | |
| 209 static ngx_int_t ngx_http_mp4_read_moov_atom(ngx_http_mp4_file_t *mp4, | |
| 210 uint64_t atom_data_size); | |
| 211 static ngx_int_t ngx_http_mp4_read_mdat_atom(ngx_http_mp4_file_t *mp4, | |
| 212 uint64_t atom_data_size); | |
| 213 static size_t ngx_http_mp4_update_mdat_atom(ngx_http_mp4_file_t *mp4, | |
| 214 off_t start_offset); | |
| 215 static ngx_int_t ngx_http_mp4_read_mvhd_atom(ngx_http_mp4_file_t *mp4, | |
| 216 uint64_t atom_data_size); | |
| 217 static ngx_int_t ngx_http_mp4_read_trak_atom(ngx_http_mp4_file_t *mp4, | |
| 218 uint64_t atom_data_size); | |
| 219 static void ngx_http_mp4_update_trak_atom(ngx_http_mp4_file_t *mp4, | |
| 220 ngx_http_mp4_trak_t *trak); | |
| 221 static ngx_int_t ngx_http_mp4_read_cmov_atom(ngx_http_mp4_file_t *mp4, | |
| 222 uint64_t atom_data_size); | |
| 223 static ngx_int_t ngx_http_mp4_read_tkhd_atom(ngx_http_mp4_file_t *mp4, | |
| 224 uint64_t atom_data_size); | |
| 225 static ngx_int_t ngx_http_mp4_read_mdia_atom(ngx_http_mp4_file_t *mp4, | |
| 226 uint64_t atom_data_size); | |
| 227 static void ngx_http_mp4_update_mdia_atom(ngx_http_mp4_file_t *mp4, | |
| 228 ngx_http_mp4_trak_t *trak); | |
| 229 static ngx_int_t ngx_http_mp4_read_mdhd_atom(ngx_http_mp4_file_t *mp4, | |
| 230 uint64_t atom_data_size); | |
| 231 static ngx_int_t ngx_http_mp4_read_hdlr_atom(ngx_http_mp4_file_t *mp4, | |
| 232 uint64_t atom_data_size); | |
| 233 static ngx_int_t ngx_http_mp4_read_minf_atom(ngx_http_mp4_file_t *mp4, | |
| 234 uint64_t atom_data_size); | |
| 235 static void ngx_http_mp4_update_minf_atom(ngx_http_mp4_file_t *mp4, | |
| 236 ngx_http_mp4_trak_t *trak); | |
| 237 static ngx_int_t ngx_http_mp4_read_dinf_atom(ngx_http_mp4_file_t *mp4, | |
| 238 uint64_t atom_data_size); | |
| 239 static ngx_int_t ngx_http_mp4_read_vmhd_atom(ngx_http_mp4_file_t *mp4, | |
| 240 uint64_t atom_data_size); | |
| 241 static ngx_int_t ngx_http_mp4_read_smhd_atom(ngx_http_mp4_file_t *mp4, | |
| 242 uint64_t atom_data_size); | |
| 243 static ngx_int_t ngx_http_mp4_read_stbl_atom(ngx_http_mp4_file_t *mp4, | |
| 244 uint64_t atom_data_size); | |
| 245 static void ngx_http_mp4_update_stbl_atom(ngx_http_mp4_file_t *mp4, | |
| 246 ngx_http_mp4_trak_t *trak); | |
| 247 static ngx_int_t ngx_http_mp4_read_stsd_atom(ngx_http_mp4_file_t *mp4, | |
| 248 uint64_t atom_data_size); | |
| 249 static ngx_int_t ngx_http_mp4_read_stts_atom(ngx_http_mp4_file_t *mp4, | |
| 250 uint64_t atom_data_size); | |
| 251 static ngx_int_t ngx_http_mp4_update_stts_atom(ngx_http_mp4_file_t *mp4, | |
| 252 ngx_http_mp4_trak_t *trak); | |
| 253 static ngx_int_t ngx_http_mp4_read_stss_atom(ngx_http_mp4_file_t *mp4, | |
| 254 uint64_t atom_data_size); | |
| 255 static ngx_int_t ngx_http_mp4_update_stss_atom(ngx_http_mp4_file_t *mp4, | |
| 256 ngx_http_mp4_trak_t *trak); | |
| 257 static ngx_int_t ngx_http_mp4_read_ctts_atom(ngx_http_mp4_file_t *mp4, | |
| 258 uint64_t atom_data_size); | |
| 259 static void ngx_http_mp4_update_ctts_atom(ngx_http_mp4_file_t *mp4, | |
| 260 ngx_http_mp4_trak_t *trak); | |
| 261 static ngx_int_t ngx_http_mp4_read_stsc_atom(ngx_http_mp4_file_t *mp4, | |
| 262 uint64_t atom_data_size); | |
| 263 static ngx_int_t ngx_http_mp4_update_stsc_atom(ngx_http_mp4_file_t *mp4, | |
| 264 ngx_http_mp4_trak_t *trak); | |
| 265 static ngx_int_t ngx_http_mp4_read_stsz_atom(ngx_http_mp4_file_t *mp4, | |
| 266 uint64_t atom_data_size); | |
| 267 static void ngx_http_mp4_update_stsz_atom(ngx_http_mp4_file_t *mp4, | |
| 268 ngx_http_mp4_trak_t *trak); | |
| 269 static ngx_int_t ngx_http_mp4_read_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 270 uint64_t atom_data_size); | |
| 271 static ngx_int_t ngx_http_mp4_update_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 272 ngx_http_mp4_trak_t *trak); | |
| 273 static void ngx_http_mp4_adjust_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 274 ngx_http_mp4_trak_t *trak, int32_t adjustment); | |
| 4112 | 275 static ngx_int_t ngx_http_mp4_read_co64_atom(ngx_http_mp4_file_t *mp4, |
| 276 uint64_t atom_data_size); | |
| 277 static ngx_int_t ngx_http_mp4_update_co64_atom(ngx_http_mp4_file_t *mp4, | |
| 278 ngx_http_mp4_trak_t *trak); | |
| 279 static void ngx_http_mp4_adjust_co64_atom(ngx_http_mp4_file_t *mp4, | |
| 280 ngx_http_mp4_trak_t *trak, off_t adjustment); | |
| 4085 | 281 static char *ngx_http_mp4(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
| 282 static void *ngx_http_mp4_create_conf(ngx_conf_t *cf); | |
| 283 static char *ngx_http_mp4_merge_conf(ngx_conf_t *cf, void *parent, void *child); | |
| 284 | |
| 285 static ngx_command_t ngx_http_mp4_commands[] = { | |
| 286 | |
| 287 { ngx_string("mp4"), | |
| 288 NGX_HTTP_LOC_CONF|NGX_CONF_NOARGS, | |
| 289 ngx_http_mp4, | |
| 290 0, | |
| 291 0, | |
| 292 NULL }, | |
| 293 | |
| 294 { ngx_string("mp4_buffer_size"), | |
| 295 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 296 ngx_conf_set_size_slot, | |
| 297 NGX_HTTP_LOC_CONF_OFFSET, | |
| 298 offsetof(ngx_http_mp4_conf_t, buffer_size), | |
| 299 NULL }, | |
| 300 | |
|
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changeset
|
301 { ngx_string("mp4_max_buffer_size"), |
| 4085 | 302 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| 303 ngx_conf_set_size_slot, | |
| 304 NGX_HTTP_LOC_CONF_OFFSET, | |
|
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parents:
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diff
changeset
|
305 offsetof(ngx_http_mp4_conf_t, max_buffer_size), |
| 4085 | 306 NULL }, |
| 307 | |
| 308 ngx_null_command | |
| 309 }; | |
| 310 | |
| 311 | |
| 312 static ngx_http_module_t ngx_http_mp4_module_ctx = { | |
| 313 NULL, /* preconfiguration */ | |
| 314 NULL, /* postconfiguration */ | |
| 315 | |
| 316 NULL, /* create main configuration */ | |
| 317 NULL, /* init main configuration */ | |
| 318 | |
| 319 NULL, /* create server configuration */ | |
| 320 NULL, /* merge server configuration */ | |
| 321 | |
| 322 ngx_http_mp4_create_conf, /* create location configuration */ | |
| 323 ngx_http_mp4_merge_conf /* merge location configuration */ | |
| 324 }; | |
| 325 | |
| 326 | |
| 327 ngx_module_t ngx_http_mp4_module = { | |
| 328 NGX_MODULE_V1, | |
| 329 &ngx_http_mp4_module_ctx, /* module context */ | |
| 330 ngx_http_mp4_commands, /* module directives */ | |
| 331 NGX_HTTP_MODULE, /* module type */ | |
| 332 NULL, /* init master */ | |
| 333 NULL, /* init module */ | |
| 334 NULL, /* init process */ | |
| 335 NULL, /* init thread */ | |
| 336 NULL, /* exit thread */ | |
| 337 NULL, /* exit process */ | |
| 338 NULL, /* exit master */ | |
| 339 NGX_MODULE_V1_PADDING | |
| 340 }; | |
| 341 | |
| 342 | |
| 343 static ngx_http_mp4_atom_handler_t ngx_http_mp4_atoms[] = { | |
| 344 { "ftyp", ngx_http_mp4_read_ftyp_atom }, | |
| 345 { "moov", ngx_http_mp4_read_moov_atom }, | |
| 346 { "mdat", ngx_http_mp4_read_mdat_atom }, | |
| 347 { NULL, NULL } | |
| 348 }; | |
| 349 | |
| 350 static ngx_http_mp4_atom_handler_t ngx_http_mp4_moov_atoms[] = { | |
| 351 { "mvhd", ngx_http_mp4_read_mvhd_atom }, | |
| 352 { "trak", ngx_http_mp4_read_trak_atom }, | |
| 353 { "cmov", ngx_http_mp4_read_cmov_atom }, | |
| 354 { NULL, NULL } | |
| 355 }; | |
| 356 | |
| 357 static ngx_http_mp4_atom_handler_t ngx_http_mp4_trak_atoms[] = { | |
| 358 { "tkhd", ngx_http_mp4_read_tkhd_atom }, | |
| 359 { "mdia", ngx_http_mp4_read_mdia_atom }, | |
| 360 { NULL, NULL } | |
| 361 }; | |
| 362 | |
| 363 static ngx_http_mp4_atom_handler_t ngx_http_mp4_mdia_atoms[] = { | |
| 364 { "mdhd", ngx_http_mp4_read_mdhd_atom }, | |
| 365 { "hdlr", ngx_http_mp4_read_hdlr_atom }, | |
| 366 { "minf", ngx_http_mp4_read_minf_atom }, | |
| 367 { NULL, NULL } | |
| 368 }; | |
| 369 | |
| 370 static ngx_http_mp4_atom_handler_t ngx_http_mp4_minf_atoms[] = { | |
| 371 { "vmhd", ngx_http_mp4_read_vmhd_atom }, | |
| 372 { "smhd", ngx_http_mp4_read_smhd_atom }, | |
| 373 { "dinf", ngx_http_mp4_read_dinf_atom }, | |
| 374 { "stbl", ngx_http_mp4_read_stbl_atom }, | |
| 375 { NULL, NULL } | |
| 376 }; | |
| 377 | |
| 378 static ngx_http_mp4_atom_handler_t ngx_http_mp4_stbl_atoms[] = { | |
| 379 { "stsd", ngx_http_mp4_read_stsd_atom }, | |
| 380 { "stts", ngx_http_mp4_read_stts_atom }, | |
| 381 { "stss", ngx_http_mp4_read_stss_atom }, | |
| 382 { "ctts", ngx_http_mp4_read_ctts_atom }, | |
| 383 { "stsc", ngx_http_mp4_read_stsc_atom }, | |
| 384 { "stsz", ngx_http_mp4_read_stsz_atom }, | |
| 385 { "stco", ngx_http_mp4_read_stco_atom }, | |
| 4112 | 386 { "co64", ngx_http_mp4_read_co64_atom }, |
| 4085 | 387 { NULL, NULL } |
| 388 }; | |
| 389 | |
| 390 | |
| 391 static ngx_int_t | |
| 392 ngx_http_mp4_handler(ngx_http_request_t *r) | |
| 393 { | |
| 394 u_char *last; | |
| 395 size_t root; | |
| 396 ngx_int_t rc, start; | |
| 397 ngx_uint_t level; | |
| 398 ngx_str_t path, value; | |
| 399 ngx_log_t *log; | |
| 400 ngx_buf_t *b; | |
| 401 ngx_chain_t out; | |
| 402 ngx_http_mp4_file_t *mp4; | |
| 403 ngx_open_file_info_t of; | |
| 404 ngx_http_core_loc_conf_t *clcf; | |
| 405 | |
| 406 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { | |
| 407 return NGX_HTTP_NOT_ALLOWED; | |
| 408 } | |
| 409 | |
| 410 if (r->uri.data[r->uri.len - 1] == '/') { | |
| 411 return NGX_DECLINED; | |
| 412 } | |
| 413 | |
| 414 rc = ngx_http_discard_request_body(r); | |
| 415 | |
| 416 if (rc != NGX_OK) { | |
| 417 return rc; | |
| 418 } | |
| 419 | |
| 420 last = ngx_http_map_uri_to_path(r, &path, &root, 0); | |
| 421 if (last == NULL) { | |
| 422 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 423 } | |
| 424 | |
| 425 log = r->connection->log; | |
| 426 | |
| 427 path.len = last - path.data; | |
| 428 | |
| 429 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, | |
| 430 "http mp4 filename: \"%V\"", &path); | |
| 431 | |
| 432 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
| 433 | |
| 434 ngx_memzero(&of, sizeof(ngx_open_file_info_t)); | |
| 435 | |
| 436 of.read_ahead = clcf->read_ahead; | |
|
4087
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Bugfix of r4086: directio was always enabled if mp4 file was sent as is.
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parents:
4085
diff
changeset
|
437 of.directio = NGX_MAX_OFF_T_VALUE; |
| 4085 | 438 of.valid = clcf->open_file_cache_valid; |
| 439 of.min_uses = clcf->open_file_cache_min_uses; | |
| 440 of.errors = clcf->open_file_cache_errors; | |
| 441 of.events = clcf->open_file_cache_events; | |
| 442 | |
| 443 if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool) | |
| 444 != NGX_OK) | |
| 445 { | |
| 446 switch (of.err) { | |
| 447 | |
| 448 case 0: | |
| 449 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 450 | |
| 451 case NGX_ENOENT: | |
| 452 case NGX_ENOTDIR: | |
| 453 case NGX_ENAMETOOLONG: | |
| 454 | |
| 455 level = NGX_LOG_ERR; | |
| 456 rc = NGX_HTTP_NOT_FOUND; | |
| 457 break; | |
| 458 | |
| 459 case NGX_EACCES: | |
| 460 | |
| 461 level = NGX_LOG_ERR; | |
| 462 rc = NGX_HTTP_FORBIDDEN; | |
| 463 break; | |
| 464 | |
| 465 default: | |
| 466 | |
| 467 level = NGX_LOG_CRIT; | |
| 468 rc = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 469 break; | |
| 470 } | |
| 471 | |
| 472 if (rc != NGX_HTTP_NOT_FOUND || clcf->log_not_found) { | |
| 473 ngx_log_error(level, log, of.err, | |
| 474 "%s \"%s\" failed", of.failed, path.data); | |
| 475 } | |
| 476 | |
| 477 return rc; | |
| 478 } | |
| 479 | |
| 480 if (!of.is_file) { | |
| 481 | |
| 482 if (ngx_close_file(of.fd) == NGX_FILE_ERROR) { | |
| 483 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 484 ngx_close_file_n " \"%s\" failed", path.data); | |
| 485 } | |
| 486 | |
| 487 return NGX_DECLINED; | |
| 488 } | |
| 489 | |
| 490 r->root_tested = !r->error_page; | |
| 491 r->allow_ranges = 1; | |
| 492 | |
| 493 start = -1; | |
| 494 r->headers_out.content_length_n = of.size; | |
| 495 mp4 = NULL; | |
| 496 b = NULL; | |
| 497 | |
| 498 if (r->args.len) { | |
| 499 | |
| 500 if (ngx_http_arg(r, (u_char *) "start", 5, &value) == NGX_OK) { | |
| 501 | |
|
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parents:
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diff
changeset
|
502 /* |
|
67a4654ba7d9
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parents:
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diff
changeset
|
503 * A Flash player may send start value with a lot of digits |
|
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
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parents:
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diff
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|
504 * after dot so strtod() is used instead of atofp(). NaNs and |
|
67a4654ba7d9
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parents:
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505 * infinities become negative numbers after (int) conversion. |
|
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diff
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|
506 */ |
|
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parents:
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diff
changeset
|
507 |
|
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parents:
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diff
changeset
|
508 ngx_set_errno(0); |
|
67a4654ba7d9
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diff
changeset
|
509 start = (int) (strtod((char *) value.data, NULL) * 1000); |
|
67a4654ba7d9
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parents:
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diff
changeset
|
510 |
|
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
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parents:
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diff
changeset
|
511 if (ngx_errno == 0 && start >= 0) { |
| 4085 | 512 r->allow_ranges = 0; |
| 513 | |
| 514 mp4 = ngx_pcalloc(r->pool, sizeof(ngx_http_mp4_file_t)); | |
| 515 if (mp4 == NULL) { | |
| 516 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 517 } | |
| 518 | |
| 519 mp4->file.fd = of.fd; | |
| 520 mp4->file.name = path; | |
| 521 mp4->file.log = r->connection->log;; | |
| 522 mp4->end = of.size; | |
| 523 mp4->start = (ngx_uint_t) start; | |
| 524 mp4->request = r; | |
| 525 | |
| 526 switch (ngx_http_mp4_process(mp4)) { | |
| 527 | |
| 528 case NGX_DECLINED: | |
| 529 if (mp4->buffer) { | |
| 530 ngx_pfree(r->pool, mp4->buffer); | |
| 531 } | |
| 532 | |
| 533 ngx_pfree(r->pool, mp4); | |
| 534 mp4 = NULL; | |
| 535 | |
| 536 break; | |
| 537 | |
| 538 case NGX_OK: | |
| 539 r->headers_out.content_length_n = mp4->content_length; | |
| 540 break; | |
| 541 | |
| 542 default: /* NGX_ERROR */ | |
| 543 if (mp4->buffer) { | |
| 544 ngx_pfree(r->pool, mp4->buffer); | |
| 545 } | |
| 546 | |
| 547 ngx_pfree(r->pool, mp4); | |
| 548 | |
| 549 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 550 } | |
| 551 } | |
| 552 } | |
| 553 } | |
| 554 | |
| 555 log->action = "sending mp4 to client"; | |
| 556 | |
| 557 if (clcf->directio <= of.size) { | |
| 558 | |
| 559 /* | |
| 560 * DIRECTIO is set on transfer only | |
| 561 * to allow kernel to cache "moov" atom | |
| 562 */ | |
| 563 | |
| 564 if (ngx_directio_on(of.fd) == NGX_FILE_ERROR) { | |
| 565 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
| 566 ngx_directio_on_n " \"%s\" failed", path.data); | |
| 567 } | |
| 568 | |
|
4087
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Bugfix of r4086: directio was always enabled if mp4 file was sent as is.
Igor Sysoev <igor@sysoev.ru>
parents:
4085
diff
changeset
|
569 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
|
570 |
| 4085 | 571 if (mp4) { |
| 572 mp4->file.directio = 1; | |
| 573 } | |
| 574 } | |
| 575 | |
| 576 r->headers_out.status = NGX_HTTP_OK; | |
| 577 r->headers_out.last_modified_time = of.mtime; | |
| 578 | |
| 579 if (ngx_http_set_content_type(r) != NGX_OK) { | |
| 580 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 581 } | |
| 582 | |
| 583 if (mp4 == NULL) { | |
| 584 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); | |
| 585 if (b == NULL) { | |
| 586 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 587 } | |
| 588 | |
| 589 b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t)); | |
| 590 if (b->file == NULL) { | |
| 591 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 592 } | |
| 593 } | |
| 594 | |
| 595 rc = ngx_http_send_header(r); | |
| 596 | |
| 597 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
| 598 return rc; | |
| 599 } | |
| 600 | |
| 601 if (mp4) { | |
| 602 return ngx_http_output_filter(r, mp4->out); | |
| 603 } | |
| 604 | |
| 605 b->file_pos = 0; | |
| 606 b->file_last = of.size; | |
| 607 | |
| 608 b->in_file = b->file_last ? 1 : 0; | |
| 609 b->last_buf = 1; | |
| 610 b->last_in_chain = 1; | |
| 611 | |
| 612 b->file->fd = of.fd; | |
| 613 b->file->name = path; | |
| 614 b->file->log = log; | |
| 615 b->file->directio = of.is_directio; | |
| 616 | |
| 617 out.buf = b; | |
| 618 out.next = NULL; | |
| 619 | |
| 620 return ngx_http_output_filter(r, &out); | |
| 621 } | |
| 622 | |
| 623 | |
| 624 static ngx_int_t | |
| 625 ngx_http_mp4_process(ngx_http_mp4_file_t *mp4) | |
| 626 { | |
| 627 off_t start_offset, adjustment; | |
| 628 ngx_int_t rc; | |
| 629 ngx_uint_t i, j; | |
| 630 ngx_chain_t **prev; | |
| 631 ngx_http_mp4_trak_t *trak; | |
| 632 ngx_http_mp4_conf_t *conf; | |
| 633 | |
| 634 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 635 "mp4 start:%ui", mp4->start); | |
| 636 | |
| 637 conf = ngx_http_get_module_loc_conf(mp4->request, ngx_http_mp4_module); | |
| 638 | |
| 639 mp4->buffer_size = conf->buffer_size; | |
| 640 | |
| 641 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_atoms, mp4->end); | |
| 642 if (rc != NGX_OK) { | |
| 643 return rc; | |
| 644 } | |
| 645 | |
| 646 if (mp4->trak.nelts == 0) { | |
| 647 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 648 "no mp4 trak atoms were found in \"%s\"", | |
| 649 mp4->file.name.data); | |
| 650 return NGX_ERROR; | |
| 651 } | |
| 652 | |
| 653 if (mp4->mdat_atom.buf == NULL) { | |
| 654 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 655 "no mp4 mdat atom was found in \"%s\"", | |
| 656 mp4->file.name.data); | |
| 657 return NGX_ERROR; | |
| 658 } | |
| 659 | |
| 660 prev = &mp4->out; | |
| 661 | |
| 662 if (mp4->ftyp_atom.buf) { | |
| 663 *prev = &mp4->ftyp_atom; | |
| 664 prev = &mp4->ftyp_atom.next; | |
| 665 } | |
| 666 | |
| 667 *prev = &mp4->moov_atom; | |
| 668 prev = &mp4->moov_atom.next; | |
| 669 | |
| 670 if (mp4->mvhd_atom.buf) { | |
| 671 mp4->moov_size += mp4->mvhd_atom_buf.last - mp4->mvhd_atom_buf.pos; | |
| 672 *prev = &mp4->mvhd_atom; | |
| 673 prev = &mp4->mvhd_atom.next; | |
| 674 } | |
| 675 | |
| 676 start_offset = mp4->end; | |
| 677 trak = mp4->trak.elts; | |
| 678 | |
| 679 for (i = 0; i < mp4->trak.nelts; i++) { | |
| 680 | |
| 681 if (ngx_http_mp4_update_stts_atom(mp4, &trak[i]) != NGX_OK) { | |
| 682 return NGX_ERROR; | |
| 683 } | |
| 684 | |
| 685 if (ngx_http_mp4_update_stss_atom(mp4, &trak[i]) != NGX_OK) { | |
| 686 return NGX_ERROR; | |
| 687 } | |
| 688 | |
| 689 ngx_http_mp4_update_ctts_atom(mp4, &trak[i]); | |
| 690 | |
| 691 if (ngx_http_mp4_update_stsc_atom(mp4, &trak[i]) != NGX_OK) { | |
| 692 return NGX_ERROR; | |
| 693 } | |
| 694 | |
| 695 ngx_http_mp4_update_stsz_atom(mp4, &trak[i]); | |
| 696 | |
| 4112 | 697 if (trak[i].out[NGX_HTTP_MP4_CO64_DATA].buf) { |
| 698 if (ngx_http_mp4_update_co64_atom(mp4, &trak[i]) != NGX_OK) { | |
| 699 return NGX_ERROR; | |
| 700 } | |
| 701 | |
| 702 } else { | |
| 703 if (ngx_http_mp4_update_stco_atom(mp4, &trak[i]) != NGX_OK) { | |
| 704 return NGX_ERROR; | |
| 705 } | |
| 4085 | 706 } |
| 707 | |
| 708 ngx_http_mp4_update_stbl_atom(mp4, &trak[i]); | |
| 709 ngx_http_mp4_update_minf_atom(mp4, &trak[i]); | |
| 710 trak[i].size += trak[i].mdhd_size; | |
| 711 trak[i].size += trak[i].hdlr_size; | |
| 712 ngx_http_mp4_update_mdia_atom(mp4, &trak[i]); | |
| 713 trak[i].size += trak[i].tkhd_size; | |
| 714 ngx_http_mp4_update_trak_atom(mp4, &trak[i]); | |
| 715 | |
| 716 mp4->moov_size += trak[i].size; | |
| 717 | |
| 718 if (start_offset > trak[i].start_offset) { | |
| 719 start_offset = trak[i].start_offset; | |
| 720 } | |
| 721 | |
| 722 *prev = &trak[i].out[NGX_HTTP_MP4_TRAK_ATOM]; | |
| 723 prev = &trak[i].out[NGX_HTTP_MP4_TRAK_ATOM].next; | |
| 724 | |
| 725 for (j = 0; j < NGX_HTTP_MP4_LAST_ATOM + 1; j++) { | |
| 726 if (trak[i].out[j].buf) { | |
| 727 *prev = &trak[i].out[j]; | |
| 728 prev = &trak[i].out[j].next; | |
| 729 } | |
| 730 } | |
| 731 } | |
| 732 | |
| 733 mp4->moov_size += 8; | |
| 734 | |
| 735 ngx_mp4_set_32value(mp4->moov_atom_header, mp4->moov_size); | |
| 736 ngx_mp4_set_atom_name(mp4->moov_atom_header, 'm', 'o', 'o', 'v'); | |
| 737 mp4->content_length += mp4->moov_size; | |
| 738 | |
| 739 *prev = &mp4->mdat_atom; | |
| 740 | |
| 741 adjustment = mp4->ftyp_size + mp4->moov_size | |
| 742 + ngx_http_mp4_update_mdat_atom(mp4, start_offset) | |
| 743 - start_offset; | |
| 744 | |
|
4088
8fe1da7b8386
bugfix of r4086: nginx could not be built without debug log.
Igor Sysoev <igor@sysoev.ru>
parents:
4087
diff
changeset
|
745 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 746 "mp4 adjustment:%D", adjustment); |
| 747 | |
| 748 for (i = 0; i < mp4->trak.nelts; i++) { | |
| 4112 | 749 if (trak[i].out[NGX_HTTP_MP4_CO64_DATA].buf) { |
| 750 ngx_http_mp4_adjust_co64_atom(mp4, &trak[i], adjustment); | |
| 751 } else { | |
| 752 ngx_http_mp4_adjust_stco_atom(mp4, &trak[i], (int32_t) adjustment); | |
| 753 } | |
| 4085 | 754 } |
| 755 | |
| 756 return NGX_OK; | |
| 757 } | |
| 758 | |
| 759 | |
| 760 typedef struct { | |
| 761 u_char size[4]; | |
| 762 u_char name[4]; | |
| 763 } ngx_mp4_atom_header_t; | |
| 764 | |
| 765 typedef struct { | |
| 766 u_char size[4]; | |
| 767 u_char name[4]; | |
| 768 u_char size64[8]; | |
| 769 } ngx_mp4_atom_header64_t; | |
| 770 | |
| 771 | |
| 772 static ngx_int_t | |
| 773 ngx_http_mp4_read_atom(ngx_http_mp4_file_t *mp4, | |
| 774 ngx_http_mp4_atom_handler_t *atom, uint64_t atom_data_size) | |
| 775 { | |
| 776 off_t end; | |
| 777 size_t atom_header_size; | |
| 778 u_char *atom_header, *atom_name; | |
| 779 uint64_t atom_size; | |
| 780 ngx_int_t rc; | |
| 781 ngx_uint_t n; | |
| 782 | |
| 783 end = mp4->offset + atom_data_size; | |
| 784 | |
| 785 while (mp4->offset < end) { | |
| 786 | |
| 787 if (mp4->buffer_pos + sizeof(uint32_t) > mp4->buffer_end) { | |
| 788 if (ngx_http_mp4_read(mp4) != NGX_OK) { | |
| 789 return NGX_ERROR; | |
| 790 } | |
| 791 } | |
| 792 | |
| 793 atom_header = mp4->buffer_pos; | |
| 794 atom_size = ngx_mp4_get_32value(atom_header); | |
| 795 atom_header_size = sizeof(ngx_mp4_atom_header_t); | |
| 796 | |
| 797 if (atom_size == 0) { | |
| 798 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 799 "mp4 atom end"); | |
| 800 return NGX_OK; | |
| 801 } | |
| 802 | |
| 803 if (atom_size < sizeof(ngx_mp4_atom_header_t)) { | |
| 804 | |
| 805 if (atom_size == 1) { | |
| 806 | |
| 807 if (mp4->buffer_pos + sizeof(ngx_mp4_atom_header64_t) | |
| 808 > mp4->buffer_end) | |
| 809 { | |
| 810 if (ngx_http_mp4_read(mp4) != NGX_OK) { | |
| 811 return NGX_ERROR; | |
| 812 } | |
| 813 | |
| 814 atom_header = mp4->buffer_pos; | |
| 815 } | |
| 816 | |
| 817 /* 64-bit atom size */ | |
| 818 atom_size = ngx_mp4_get_64value(atom_header + 8); | |
| 819 atom_header_size = sizeof(ngx_mp4_atom_header64_t); | |
| 820 | |
| 821 } else { | |
| 822 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 823 "\"%s\" mp4 atom is too small:%uL", | |
| 824 mp4->file.name.data, atom_size); | |
| 825 return NGX_ERROR; | |
| 826 } | |
| 827 } | |
| 828 | |
| 829 if (mp4->buffer_pos + sizeof(ngx_mp4_atom_header_t) > mp4->buffer_end) { | |
| 830 if (ngx_http_mp4_read(mp4) != NGX_OK) { | |
| 831 return NGX_ERROR; | |
| 832 } | |
| 833 | |
| 834 atom_header = mp4->buffer_pos; | |
| 835 } | |
| 836 | |
| 837 atom_name = atom_header + sizeof(uint32_t); | |
| 838 | |
|
4088
8fe1da7b8386
bugfix of r4086: nginx could not be built without debug log.
Igor Sysoev <igor@sysoev.ru>
parents:
4087
diff
changeset
|
839 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 840 "mp4 atom: %*s @%O:%uL", |
| 841 4, atom_name, mp4->offset, atom_size); | |
| 842 | |
| 843 for (n = 0; atom[n].name; n++) { | |
| 844 | |
| 845 if (ngx_strncmp(atom_name, atom[n].name, 4) == 0) { | |
| 846 | |
| 847 ngx_mp4_atom_next(mp4, atom_header_size); | |
| 848 | |
| 849 rc = atom[n].handler(mp4, atom_size - atom_header_size); | |
| 850 if (rc != NGX_OK) { | |
| 851 return rc; | |
| 852 } | |
| 853 | |
| 854 goto next; | |
| 855 } | |
| 856 } | |
| 857 | |
| 858 ngx_mp4_atom_next(mp4, atom_size); | |
| 859 | |
| 860 next: | |
| 861 continue; | |
| 862 } | |
| 863 | |
| 864 return NGX_OK; | |
| 865 } | |
| 866 | |
| 867 | |
| 868 static ngx_int_t | |
| 869 ngx_http_mp4_read(ngx_http_mp4_file_t *mp4) | |
| 870 { | |
| 871 ngx_int_t n; | |
| 872 | |
| 873 if (mp4->offset + (off_t) mp4->buffer_size > mp4->end) { | |
| 874 mp4->buffer_size = (size_t) (mp4->end - mp4->offset); | |
| 875 } | |
| 876 | |
| 877 if (mp4->buffer == NULL) { | |
| 878 mp4->buffer = ngx_palloc(mp4->request->pool, mp4->buffer_size); | |
| 879 if (mp4->buffer == NULL) { | |
| 880 return NGX_ERROR; | |
| 881 } | |
| 882 | |
| 883 mp4->buffer_start = mp4->buffer; | |
| 884 mp4->buffer_end = mp4->buffer + mp4->buffer_size; | |
| 885 } | |
| 886 | |
| 887 n = ngx_read_file(&mp4->file, mp4->buffer_start, mp4->buffer_size, | |
| 888 mp4->offset); | |
| 889 | |
| 890 if (n == NGX_ERROR) { | |
| 891 return NGX_ERROR; | |
| 892 } | |
| 893 | |
| 894 if (n == 0) { | |
| 895 return NGX_OK; | |
| 896 } | |
| 897 | |
| 898 mp4->buffer_pos = mp4->buffer_start; | |
| 899 | |
| 900 return NGX_OK; | |
| 901 } | |
| 902 | |
| 903 | |
| 904 static ngx_int_t | |
| 905 ngx_http_mp4_read_ftyp_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 906 { | |
| 907 u_char *ftyp_atom; | |
| 908 size_t atom_size; | |
| 909 ngx_buf_t *atom; | |
| 910 | |
| 911 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 ftyp atom"); | |
| 912 | |
| 913 if (atom_data_size > 1024) { | |
| 914 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 915 "\"%s\" mp4 ftyp atom is too large:%uL", | |
| 916 mp4->file.name.data, atom_data_size); | |
| 917 return NGX_ERROR; | |
| 918 } | |
| 919 | |
| 920 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 921 | |
| 922 ftyp_atom = ngx_palloc(mp4->request->pool, atom_size); | |
| 923 if (ftyp_atom == NULL) { | |
| 924 return NGX_ERROR; | |
| 925 } | |
| 926 | |
| 927 ngx_mp4_set_32value(ftyp_atom, atom_size); | |
| 928 ngx_mp4_set_atom_name(ftyp_atom, 'f', 't', 'y', 'p'); | |
| 929 | |
| 930 /* | |
| 931 * only moov atom content is guaranteed to be in mp4->buffer | |
| 932 * during sending response, so ftyp atom content should be copied | |
| 933 */ | |
| 934 ngx_memcpy(ftyp_atom + sizeof(ngx_mp4_atom_header_t), | |
| 935 ngx_mp4_atom_data(mp4), (size_t) atom_data_size); | |
| 936 | |
| 937 atom = &mp4->ftyp_atom_buf; | |
| 938 atom->temporary = 1; | |
| 939 atom->pos = ftyp_atom; | |
| 940 atom->last = ftyp_atom + atom_size; | |
| 941 | |
| 942 mp4->ftyp_atom.buf = atom; | |
| 943 mp4->ftyp_size = atom_size; | |
| 944 mp4->content_length = atom_size; | |
| 945 | |
| 946 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 947 | |
| 948 return NGX_OK; | |
| 949 } | |
| 950 | |
| 951 | |
| 952 /* | |
| 953 * Small excess buffer to process atoms after moov atom, mp4->buffer_start | |
| 954 * will be set to this buffer part after moov atom processing. | |
| 955 */ | |
| 956 #define NGX_HTTP_MP4_MOOV_BUFFER_EXCESS (4 * 1024) | |
| 957 | |
| 958 static ngx_int_t | |
| 959 ngx_http_mp4_read_moov_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 960 { | |
| 961 ngx_int_t rc; | |
| 962 ngx_uint_t no_mdat; | |
| 963 ngx_buf_t *atom; | |
| 964 ngx_http_mp4_conf_t *conf; | |
| 965 | |
| 966 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 moov atom"); | |
| 967 | |
| 968 no_mdat = (mp4->mdat_atom.buf == NULL); | |
| 969 | |
| 970 if (no_mdat && mp4->start == 0) { | |
| 971 /* | |
| 972 * send original file if moov atom resides before | |
| 973 * mdat atom and client requests integral file | |
| 974 */ | |
| 975 return NGX_DECLINED; | |
| 976 } | |
| 977 | |
| 978 conf = ngx_http_get_module_loc_conf(mp4->request, ngx_http_mp4_module); | |
| 979 | |
| 980 if (atom_data_size > mp4->buffer_size) { | |
| 981 | |
|
4089
e27670e1ab70
mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
982 if (atom_data_size > conf->max_buffer_size) { |
| 4085 | 983 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
| 984 "\"%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
|
985 "you may want to increase mp4_max_buffer_size", |
| 4085 | 986 mp4->file.name.data, atom_data_size); |
| 987 return NGX_ERROR; | |
| 988 } | |
| 989 | |
| 990 ngx_pfree(mp4->request->pool, mp4->buffer); | |
| 991 mp4->buffer = NULL; | |
| 992 mp4->buffer_pos = NULL; | |
| 993 mp4->buffer_end = NULL; | |
| 994 | |
| 995 mp4->buffer_size = (size_t) atom_data_size | |
| 996 + NGX_HTTP_MP4_MOOV_BUFFER_EXCESS * no_mdat; | |
| 997 } | |
| 998 | |
| 999 mp4->trak.elts = &mp4->traks; | |
| 1000 mp4->trak.size = sizeof(ngx_http_mp4_trak_t); | |
| 1001 mp4->trak.nalloc = 2; | |
| 1002 mp4->trak.pool = mp4->request->pool; | |
| 1003 | |
| 1004 atom = &mp4->moov_atom_buf; | |
| 1005 atom->temporary = 1; | |
| 1006 atom->pos = mp4->moov_atom_header; | |
| 1007 atom->last = mp4->moov_atom_header + 8; | |
| 1008 | |
| 1009 mp4->moov_atom.buf = &mp4->moov_atom_buf; | |
| 1010 | |
| 1011 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_moov_atoms, atom_data_size); | |
| 1012 | |
| 1013 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 moov atom done"); | |
| 1014 | |
| 1015 if (no_mdat) { | |
| 1016 mp4->buffer_start = mp4->buffer_pos; | |
| 1017 mp4->buffer_size = NGX_HTTP_MP4_MOOV_BUFFER_EXCESS; | |
| 1018 | |
| 1019 } else { | |
| 1020 /* skip atoms after moov atom */ | |
| 1021 mp4->offset = mp4->end; | |
| 1022 } | |
| 1023 | |
| 1024 return rc; | |
| 1025 } | |
| 1026 | |
| 1027 | |
| 1028 static ngx_int_t | |
| 1029 ngx_http_mp4_read_mdat_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1030 { | |
| 1031 ngx_buf_t *data; | |
| 1032 | |
| 1033 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mdat atom"); | |
| 1034 | |
| 1035 data = &mp4->mdat_data_buf; | |
| 1036 data->file = &mp4->file; | |
| 1037 data->in_file = 1; | |
| 1038 data->last_buf = 1; | |
| 1039 data->last_in_chain = 1; | |
| 1040 data->file_last = mp4->offset + atom_data_size; | |
| 1041 | |
| 1042 mp4->mdat_atom.buf = &mp4->mdat_atom_buf; | |
| 1043 mp4->mdat_atom.next = &mp4->mdat_data; | |
| 1044 mp4->mdat_data.buf = data; | |
| 1045 | |
| 1046 if (mp4->trak.nelts) { | |
| 1047 /* skip atoms after mdat atom */ | |
| 1048 mp4->offset = mp4->end; | |
| 1049 | |
| 1050 } else { | |
| 1051 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1052 } | |
| 1053 | |
| 1054 return NGX_OK; | |
| 1055 } | |
| 1056 | |
| 1057 | |
| 1058 static size_t | |
| 1059 ngx_http_mp4_update_mdat_atom(ngx_http_mp4_file_t *mp4, off_t start_offset) | |
| 1060 { | |
| 1061 off_t atom_data_size; | |
| 1062 u_char *atom_header; | |
| 1063 uint32_t atom_header_size; | |
| 1064 uint64_t atom_size; | |
| 1065 ngx_buf_t *atom; | |
| 1066 | |
| 1067 atom_data_size = mp4->mdat_data.buf->file_last - start_offset; | |
| 1068 mp4->mdat_data.buf->file_pos = start_offset; | |
| 1069 | |
|
4088
8fe1da7b8386
bugfix of r4086: nginx could not be built without debug log.
Igor Sysoev <igor@sysoev.ru>
parents:
4087
diff
changeset
|
1070 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 1071 "mdat new offset @%O:%O", start_offset, atom_data_size); |
| 1072 | |
| 1073 atom_header = mp4->mdat_atom_header; | |
| 1074 | |
|
4155
d9636bf3f159
Fix of building on platforms with 32-bit off_t. (closed #23)
Igor Sysoev <igor@sysoev.ru>
parents:
4112
diff
changeset
|
1075 if ((uint64_t) atom_data_size > 0xffffffff) { |
| 4085 | 1076 atom_size = 1; |
| 1077 atom_header_size = sizeof(ngx_mp4_atom_header64_t); | |
| 1078 ngx_mp4_set_64value(atom_header + sizeof(ngx_mp4_atom_header_t), | |
| 1079 sizeof(ngx_mp4_atom_header64_t) + atom_data_size); | |
| 1080 } else { | |
| 1081 atom_size = sizeof(ngx_mp4_atom_header_t) + atom_data_size; | |
| 1082 atom_header_size = sizeof(ngx_mp4_atom_header_t); | |
| 1083 } | |
| 1084 | |
|
4282
71cdac0b9ea6
Fix of "Content-Length" header of MP4 response if start argument was used.
Igor Sysoev <igor@sysoev.ru>
parents:
4189
diff
changeset
|
1085 mp4->content_length += atom_header_size + atom_data_size; |
|
71cdac0b9ea6
Fix of "Content-Length" header of MP4 response if start argument was used.
Igor Sysoev <igor@sysoev.ru>
parents:
4189
diff
changeset
|
1086 |
| 4085 | 1087 ngx_mp4_set_32value(atom_header, atom_size); |
| 1088 ngx_mp4_set_atom_name(atom_header, 'm', 'd', 'a', 't'); | |
| 1089 | |
| 1090 atom = &mp4->mdat_atom_buf; | |
| 1091 atom->temporary = 1; | |
| 1092 atom->pos = atom_header; | |
| 1093 atom->last = atom_header + atom_header_size; | |
| 1094 | |
| 1095 return atom_header_size; | |
| 1096 } | |
| 1097 | |
| 1098 | |
| 1099 typedef struct { | |
| 1100 u_char size[4]; | |
| 1101 u_char name[4]; | |
| 1102 u_char version[1]; | |
| 1103 u_char flags[3]; | |
| 1104 u_char creation_time[4]; | |
| 1105 u_char modification_time[4]; | |
| 1106 u_char timescale[4]; | |
| 1107 u_char duration[4]; | |
| 1108 u_char rate[4]; | |
| 1109 u_char volume[2]; | |
| 1110 u_char reserved[10]; | |
| 1111 u_char matrix[36]; | |
| 1112 u_char preview_time[4]; | |
| 1113 u_char preview_duration[4]; | |
| 1114 u_char poster_time[4]; | |
| 1115 u_char selection_time[4]; | |
| 1116 u_char selection_duration[4]; | |
| 1117 u_char current_time[4]; | |
| 1118 u_char next_track_id[4]; | |
| 1119 } ngx_mp4_mvhd_atom_t; | |
| 1120 | |
| 1121 typedef struct { | |
| 1122 u_char size[4]; | |
| 1123 u_char name[4]; | |
| 1124 u_char version[1]; | |
| 1125 u_char flags[3]; | |
| 1126 u_char creation_time[8]; | |
| 1127 u_char modification_time[8]; | |
| 1128 u_char timescale[4]; | |
| 1129 u_char duration[8]; | |
| 1130 u_char rate[4]; | |
| 1131 u_char volume[2]; | |
| 1132 u_char reserved[10]; | |
| 1133 u_char matrix[36]; | |
| 1134 u_char preview_time[4]; | |
| 1135 u_char preview_duration[4]; | |
| 1136 u_char poster_time[4]; | |
| 1137 u_char selection_time[4]; | |
| 1138 u_char selection_duration[4]; | |
| 1139 u_char current_time[4]; | |
| 1140 u_char next_track_id[4]; | |
| 1141 } ngx_mp4_mvhd64_atom_t; | |
| 1142 | |
| 1143 | |
| 1144 static ngx_int_t | |
| 1145 ngx_http_mp4_read_mvhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1146 { | |
| 1147 u_char *atom_header; | |
| 1148 size_t atom_size; | |
| 1149 uint32_t timescale; | |
| 1150 uint64_t duration; | |
| 1151 ngx_buf_t *atom; | |
| 1152 ngx_mp4_mvhd_atom_t *mvhd_atom; | |
| 1153 ngx_mp4_mvhd64_atom_t *mvhd64_atom; | |
| 1154 | |
| 1155 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mvhd atom"); | |
| 1156 | |
| 1157 atom_header = ngx_mp4_atom_header(mp4); | |
| 1158 mvhd_atom = (ngx_mp4_mvhd_atom_t *) atom_header; | |
| 1159 mvhd64_atom = (ngx_mp4_mvhd64_atom_t *) atom_header; | |
| 1160 ngx_mp4_set_atom_name(atom_header, 'm', 'v', 'h', 'd'); | |
| 1161 | |
| 1162 if (mvhd_atom->version[0] == 0) { | |
| 1163 /* version 0: 32-bit duration */ | |
| 1164 timescale = ngx_mp4_get_32value(mvhd_atom->timescale); | |
| 1165 duration = ngx_mp4_get_32value(mvhd_atom->duration); | |
| 1166 | |
| 1167 } else { | |
| 1168 /* version 1: 64-bit duration */ | |
| 1169 timescale = ngx_mp4_get_32value(mvhd64_atom->timescale); | |
| 1170 duration = ngx_mp4_get_64value(mvhd64_atom->duration); | |
| 1171 } | |
| 1172 | |
| 1173 mp4->timescale = timescale; | |
| 1174 | |
| 1175 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1176 "mvhd timescale:%uD, duration:%uL, time:%.3fs", | |
| 1177 timescale, duration, (double) duration / timescale); | |
| 1178 | |
| 1179 duration -= (uint64_t) mp4->start * timescale / 1000; | |
| 1180 | |
| 1181 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1182 "mvhd new duration:%uL, time:%.3fs", | |
| 1183 duration, (double) duration / timescale); | |
| 1184 | |
| 1185 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1186 ngx_mp4_set_32value(mvhd_atom->size, atom_size); | |
| 1187 | |
| 1188 if (mvhd_atom->version[0] == 0) { | |
| 1189 ngx_mp4_set_32value(mvhd_atom->duration, duration); | |
| 1190 | |
| 1191 } else { | |
| 1192 ngx_mp4_set_64value(mvhd64_atom->duration, duration); | |
| 1193 } | |
| 1194 | |
| 1195 atom = &mp4->mvhd_atom_buf; | |
| 1196 atom->temporary = 1; | |
| 1197 atom->pos = atom_header; | |
| 1198 atom->last = atom_header + atom_size; | |
| 1199 | |
| 1200 mp4->mvhd_atom.buf = atom; | |
| 1201 | |
| 1202 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1203 | |
| 1204 return NGX_OK; | |
| 1205 } | |
| 1206 | |
| 1207 | |
| 1208 static ngx_int_t | |
| 1209 ngx_http_mp4_read_trak_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1210 { | |
|
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1211 u_char *atom_header, *atom_end; |
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1212 off_t atom_file_end; |
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1213 ngx_int_t rc; |
| 4085 | 1214 ngx_buf_t *atom; |
| 1215 ngx_http_mp4_trak_t *trak; | |
| 1216 | |
| 1217 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 trak atom"); | |
| 1218 | |
| 1219 trak = ngx_array_push(&mp4->trak); | |
| 1220 if (trak == NULL) { | |
| 1221 return NGX_ERROR; | |
| 1222 } | |
| 1223 | |
| 1224 ngx_memzero(trak, sizeof(ngx_http_mp4_trak_t)); | |
| 1225 | |
| 1226 atom_header = ngx_mp4_atom_header(mp4); | |
| 1227 ngx_mp4_set_atom_name(atom_header, 't', 'r', 'a', 'k'); | |
| 1228 | |
| 1229 atom = &trak->trak_atom_buf; | |
| 1230 atom->temporary = 1; | |
| 1231 atom->pos = atom_header; | |
| 1232 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1233 | |
| 1234 trak->out[NGX_HTTP_MP4_TRAK_ATOM].buf = atom; | |
| 1235 | |
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1236 atom_end = mp4->buffer_pos + atom_data_size; |
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1237 atom_file_end = mp4->offset + atom_data_size; |
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1238 |
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1239 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_trak_atoms, atom_data_size); |
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1240 |
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1241 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
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1242 "mp4 trak atom: %i", rc); |
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1243 |
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1244 if (rc == NGX_DECLINED) { |
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1245 /* skip this trak */ |
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1246 ngx_memzero(trak, sizeof(ngx_http_mp4_trak_t)); |
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1247 mp4->trak.nelts--; |
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1248 mp4->buffer_pos = atom_end; |
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1249 mp4->offset = atom_file_end; |
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1250 return NGX_OK; |
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1251 } |
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1252 |
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1253 return rc; |
| 4085 | 1254 } |
| 1255 | |
| 1256 | |
| 1257 static void | |
| 1258 ngx_http_mp4_update_trak_atom(ngx_http_mp4_file_t *mp4, | |
| 1259 ngx_http_mp4_trak_t *trak) | |
| 1260 { | |
| 1261 ngx_buf_t *atom; | |
| 1262 | |
| 1263 trak->size += sizeof(ngx_mp4_atom_header_t); | |
| 1264 atom = &trak->trak_atom_buf; | |
| 1265 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1266 } | |
| 1267 | |
| 1268 | |
| 1269 static ngx_int_t | |
| 1270 ngx_http_mp4_read_cmov_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1271 { | |
| 1272 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 1273 "\"%s\" mp4 compressed moov atom (cmov) is not supported", | |
| 1274 mp4->file.name.data); | |
| 1275 | |
| 1276 return NGX_ERROR; | |
| 1277 } | |
| 1278 | |
| 1279 | |
| 1280 typedef struct { | |
| 1281 u_char size[4]; | |
| 1282 u_char name[4]; | |
| 1283 u_char version[1]; | |
| 1284 u_char flags[3]; | |
| 1285 u_char creation_time[4]; | |
| 1286 u_char modification_time[4]; | |
| 1287 u_char track_id[4]; | |
| 1288 u_char reserved1[4]; | |
| 1289 u_char duration[4]; | |
| 1290 u_char reserved2[8]; | |
| 1291 u_char layer[2]; | |
| 1292 u_char group[2]; | |
| 1293 u_char volume[2]; | |
| 1294 u_char reverved3[2]; | |
| 1295 u_char matrix[36]; | |
| 1296 u_char width[4]; | |
| 1297 u_char heigth[4]; | |
| 1298 } ngx_mp4_tkhd_atom_t; | |
| 1299 | |
| 1300 typedef struct { | |
| 1301 u_char size[4]; | |
| 1302 u_char name[4]; | |
| 1303 u_char version[1]; | |
| 1304 u_char flags[3]; | |
| 1305 u_char creation_time[8]; | |
| 1306 u_char modification_time[8]; | |
| 1307 u_char track_id[4]; | |
| 1308 u_char reserved1[4]; | |
| 1309 u_char duration[8]; | |
| 1310 u_char reserved2[8]; | |
| 1311 u_char layer[2]; | |
| 1312 u_char group[2]; | |
| 1313 u_char volume[2]; | |
| 1314 u_char reverved3[2]; | |
| 1315 u_char matrix[36]; | |
| 1316 u_char width[4]; | |
| 1317 u_char heigth[4]; | |
| 1318 } ngx_mp4_tkhd64_atom_t; | |
| 1319 | |
| 1320 | |
| 1321 static ngx_int_t | |
| 1322 ngx_http_mp4_read_tkhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1323 { | |
| 1324 u_char *atom_header; | |
| 1325 size_t atom_size; | |
| 1326 uint64_t duration; | |
| 1327 ngx_buf_t *atom; | |
| 1328 ngx_http_mp4_trak_t *trak; | |
| 1329 ngx_mp4_tkhd_atom_t *tkhd_atom; | |
| 1330 ngx_mp4_tkhd64_atom_t *tkhd64_atom; | |
| 1331 | |
| 1332 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 tkhd atom"); | |
| 1333 | |
| 1334 atom_header = ngx_mp4_atom_header(mp4); | |
| 1335 tkhd_atom = (ngx_mp4_tkhd_atom_t *) atom_header; | |
| 1336 tkhd64_atom = (ngx_mp4_tkhd64_atom_t *) atom_header; | |
| 1337 ngx_mp4_set_atom_name(tkhd_atom, 't', 'k', 'h', 'd'); | |
| 1338 | |
| 1339 if (tkhd_atom->version[0] == 0) { | |
| 1340 /* version 0: 32-bit duration */ | |
| 1341 duration = ngx_mp4_get_32value(tkhd_atom->duration); | |
| 1342 | |
| 1343 } else { | |
| 1344 /* version 1: 64-bit duration */ | |
| 1345 duration = ngx_mp4_get_64value(tkhd64_atom->duration); | |
| 1346 } | |
| 1347 | |
| 1348 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1349 "tkhd duration:%uL, time:%.3fs", | |
| 1350 duration, (double) duration / mp4->timescale); | |
| 1351 | |
| 1352 duration -= (uint64_t) mp4->start * mp4->timescale / 1000; | |
| 1353 | |
| 1354 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1355 "tkhd new duration:%uL, time:%.3fs", | |
| 1356 duration, (double) duration / mp4->timescale); | |
| 1357 | |
| 1358 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1359 | |
| 1360 trak = ngx_mp4_last_trak(mp4); | |
| 1361 trak->tkhd_size = atom_size; | |
| 1362 | |
| 1363 ngx_mp4_set_32value(tkhd_atom->size, atom_size); | |
| 1364 | |
| 1365 if (tkhd_atom->version[0] == 0) { | |
| 1366 ngx_mp4_set_32value(tkhd_atom->duration, duration); | |
| 1367 | |
| 1368 } else { | |
| 1369 ngx_mp4_set_64value(tkhd64_atom->duration, duration); | |
| 1370 } | |
| 1371 | |
| 1372 atom = &trak->tkhd_atom_buf; | |
| 1373 atom->temporary = 1; | |
| 1374 atom->pos = atom_header; | |
| 1375 atom->last = atom_header + atom_size; | |
| 1376 | |
| 1377 trak->out[NGX_HTTP_MP4_TKHD_ATOM].buf = atom; | |
| 1378 | |
| 1379 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1380 | |
| 1381 return NGX_OK; | |
| 1382 } | |
| 1383 | |
| 1384 | |
| 1385 static ngx_int_t | |
| 1386 ngx_http_mp4_read_mdia_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1387 { | |
| 1388 u_char *atom_header; | |
| 1389 ngx_buf_t *atom; | |
| 1390 ngx_http_mp4_trak_t *trak; | |
| 1391 | |
| 1392 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process mdia atom"); | |
| 1393 | |
| 1394 atom_header = ngx_mp4_atom_header(mp4); | |
| 1395 ngx_mp4_set_atom_name(atom_header, 'm', 'd', 'i', 'a'); | |
| 1396 | |
| 1397 trak = ngx_mp4_last_trak(mp4); | |
| 1398 | |
| 1399 atom = &trak->mdia_atom_buf; | |
| 1400 atom->temporary = 1; | |
| 1401 atom->pos = atom_header; | |
| 1402 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1403 | |
| 1404 trak->out[NGX_HTTP_MP4_MDIA_ATOM].buf = atom; | |
| 1405 | |
| 1406 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_mdia_atoms, atom_data_size); | |
| 1407 } | |
| 1408 | |
| 1409 | |
| 1410 static void | |
| 1411 ngx_http_mp4_update_mdia_atom(ngx_http_mp4_file_t *mp4, | |
| 1412 ngx_http_mp4_trak_t *trak) | |
| 1413 { | |
| 1414 ngx_buf_t *atom; | |
| 1415 | |
| 1416 trak->size += sizeof(ngx_mp4_atom_header_t); | |
| 1417 atom = &trak->mdia_atom_buf; | |
| 1418 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1419 } | |
| 1420 | |
| 1421 | |
| 1422 typedef struct { | |
| 1423 u_char size[4]; | |
| 1424 u_char name[4]; | |
| 1425 u_char version[1]; | |
| 1426 u_char flags[3]; | |
| 1427 u_char creation_time[4]; | |
| 1428 u_char modification_time[4]; | |
| 1429 u_char timescale[4]; | |
| 1430 u_char duration[4]; | |
| 1431 u_char language[2]; | |
| 1432 u_char quality[2]; | |
| 1433 } ngx_mp4_mdhd_atom_t; | |
| 1434 | |
| 1435 typedef struct { | |
| 1436 u_char size[4]; | |
| 1437 u_char name[4]; | |
| 1438 u_char version[1]; | |
| 1439 u_char flags[3]; | |
| 1440 u_char creation_time[8]; | |
| 1441 u_char modification_time[8]; | |
| 1442 u_char timescale[4]; | |
| 1443 u_char duration[8]; | |
| 1444 u_char language[2]; | |
| 1445 u_char quality[2]; | |
| 1446 } ngx_mp4_mdhd64_atom_t; | |
| 1447 | |
| 1448 | |
| 1449 static ngx_int_t | |
| 1450 ngx_http_mp4_read_mdhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1451 { | |
| 1452 u_char *atom_header; | |
| 1453 size_t atom_size; | |
| 1454 uint32_t timescale; | |
| 1455 uint64_t duration; | |
| 1456 ngx_buf_t *atom; | |
| 1457 ngx_http_mp4_trak_t *trak; | |
| 1458 ngx_mp4_mdhd_atom_t *mdhd_atom; | |
| 1459 ngx_mp4_mdhd64_atom_t *mdhd64_atom; | |
| 1460 | |
| 1461 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mdhd atom"); | |
| 1462 | |
| 1463 atom_header = ngx_mp4_atom_header(mp4); | |
| 1464 mdhd_atom = (ngx_mp4_mdhd_atom_t *) atom_header; | |
| 1465 mdhd64_atom = (ngx_mp4_mdhd64_atom_t *) atom_header; | |
| 1466 ngx_mp4_set_atom_name(mdhd_atom, 'm', 'd', 'h', 'd'); | |
| 1467 | |
| 1468 if (mdhd_atom->version[0] == 0) { | |
| 1469 /* version 0: everything is 32-bit */ | |
| 1470 timescale = ngx_mp4_get_32value(mdhd_atom->timescale); | |
| 1471 duration = ngx_mp4_get_32value(mdhd_atom->duration); | |
| 1472 | |
| 1473 } else { | |
| 1474 /* version 1: 64-bit duration and 32-bit timescale */ | |
| 1475 timescale = ngx_mp4_get_32value(mdhd64_atom->timescale); | |
| 1476 duration = ngx_mp4_get_64value(mdhd64_atom->duration); | |
| 1477 } | |
| 1478 | |
| 1479 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1480 "mdhd timescale:%uD, duration:%uL, time:%.3fs", | |
| 1481 timescale, duration, (double) duration / timescale); | |
| 1482 | |
| 1483 duration -= (uint64_t) mp4->start * timescale / 1000; | |
| 1484 | |
| 1485 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1486 "mdhd new duration:%uL, time:%.3fs", | |
| 1487 duration, (double) duration / timescale); | |
| 1488 | |
| 1489 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1490 | |
| 1491 trak = ngx_mp4_last_trak(mp4); | |
| 1492 trak->mdhd_size = atom_size; | |
| 1493 trak->timescale = timescale; | |
| 1494 | |
| 1495 ngx_mp4_set_32value(mdhd_atom->size, atom_size); | |
| 1496 | |
| 1497 if (mdhd_atom->version[0] == 0) { | |
| 1498 ngx_mp4_set_32value(mdhd_atom->duration, duration); | |
| 1499 | |
| 1500 } else { | |
| 1501 ngx_mp4_set_64value(mdhd64_atom->duration, duration); | |
| 1502 } | |
| 1503 | |
| 1504 atom = &trak->mdhd_atom_buf; | |
| 1505 atom->temporary = 1; | |
| 1506 atom->pos = atom_header; | |
| 1507 atom->last = atom_header + atom_size; | |
| 1508 | |
| 1509 trak->out[NGX_HTTP_MP4_MDHD_ATOM].buf = atom; | |
| 1510 | |
| 1511 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1512 | |
| 1513 return NGX_OK; | |
| 1514 } | |
| 1515 | |
| 1516 | |
| 1517 static ngx_int_t | |
| 1518 ngx_http_mp4_read_hdlr_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1519 { | |
| 1520 u_char *atom_header; | |
| 1521 size_t atom_size; | |
| 1522 ngx_buf_t *atom; | |
| 1523 ngx_http_mp4_trak_t *trak; | |
| 1524 | |
| 1525 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 hdlr atom"); | |
| 1526 | |
| 1527 atom_header = ngx_mp4_atom_header(mp4); | |
| 1528 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1529 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1530 ngx_mp4_set_atom_name(atom_header, 'h', 'd', 'l', 'r'); | |
| 1531 | |
| 1532 trak = ngx_mp4_last_trak(mp4); | |
| 1533 | |
| 1534 atom = &trak->hdlr_atom_buf; | |
| 1535 atom->temporary = 1; | |
| 1536 atom->pos = atom_header; | |
| 1537 atom->last = atom_header + atom_size; | |
| 1538 | |
| 1539 trak->hdlr_size = atom_size; | |
| 1540 trak->out[NGX_HTTP_MP4_HDLR_ATOM].buf = atom; | |
| 1541 | |
| 1542 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1543 | |
| 1544 return NGX_OK; | |
| 1545 } | |
| 1546 | |
| 1547 | |
| 1548 static ngx_int_t | |
| 1549 ngx_http_mp4_read_minf_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1550 { | |
| 1551 u_char *atom_header; | |
| 1552 ngx_buf_t *atom; | |
| 1553 ngx_http_mp4_trak_t *trak; | |
| 1554 | |
| 1555 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process minf atom"); | |
| 1556 | |
| 1557 atom_header = ngx_mp4_atom_header(mp4); | |
| 1558 ngx_mp4_set_atom_name(atom_header, 'm', 'i', 'n', 'f'); | |
| 1559 | |
| 1560 trak = ngx_mp4_last_trak(mp4); | |
| 1561 | |
| 1562 atom = &trak->minf_atom_buf; | |
| 1563 atom->temporary = 1; | |
| 1564 atom->pos = atom_header; | |
| 1565 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1566 | |
| 1567 trak->out[NGX_HTTP_MP4_MINF_ATOM].buf = atom; | |
| 1568 | |
| 1569 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_minf_atoms, atom_data_size); | |
| 1570 } | |
| 1571 | |
| 1572 | |
| 1573 static void | |
| 1574 ngx_http_mp4_update_minf_atom(ngx_http_mp4_file_t *mp4, | |
| 1575 ngx_http_mp4_trak_t *trak) | |
| 1576 { | |
| 1577 ngx_buf_t *atom; | |
| 1578 | |
| 1579 trak->size += sizeof(ngx_mp4_atom_header_t) | |
| 1580 + trak->vmhd_size | |
| 1581 + trak->smhd_size | |
| 1582 + trak->dinf_size; | |
| 1583 atom = &trak->minf_atom_buf; | |
| 1584 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1585 } | |
| 1586 | |
| 1587 | |
| 1588 static ngx_int_t | |
| 1589 ngx_http_mp4_read_vmhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1590 { | |
| 1591 u_char *atom_header; | |
| 1592 size_t atom_size; | |
| 1593 ngx_buf_t *atom; | |
| 1594 ngx_http_mp4_trak_t *trak; | |
| 1595 | |
| 1596 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 vmhd atom"); | |
| 1597 | |
| 1598 atom_header = ngx_mp4_atom_header(mp4); | |
| 1599 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1600 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1601 ngx_mp4_set_atom_name(atom_header, 'v', 'm', 'h', 'd'); | |
| 1602 | |
| 1603 trak = ngx_mp4_last_trak(mp4); | |
| 1604 | |
| 1605 atom = &trak->vmhd_atom_buf; | |
| 1606 atom->temporary = 1; | |
| 1607 atom->pos = atom_header; | |
| 1608 atom->last = atom_header + atom_size; | |
| 1609 | |
| 1610 trak->vmhd_size += atom_size; | |
| 1611 trak->out[NGX_HTTP_MP4_VMHD_ATOM].buf = atom; | |
| 1612 | |
| 1613 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1614 | |
| 1615 return NGX_OK; | |
| 1616 } | |
| 1617 | |
| 1618 | |
| 1619 static ngx_int_t | |
| 1620 ngx_http_mp4_read_smhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1621 { | |
| 1622 u_char *atom_header; | |
| 1623 size_t atom_size; | |
| 1624 ngx_buf_t *atom; | |
| 1625 ngx_http_mp4_trak_t *trak; | |
| 1626 | |
| 1627 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 smhd atom"); | |
| 1628 | |
| 1629 atom_header = ngx_mp4_atom_header(mp4); | |
| 1630 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1631 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1632 ngx_mp4_set_atom_name(atom_header, 's', 'm', 'h', 'd'); | |
| 1633 | |
| 1634 trak = ngx_mp4_last_trak(mp4); | |
| 1635 | |
| 1636 atom = &trak->smhd_atom_buf; | |
| 1637 atom->temporary = 1; | |
| 1638 atom->pos = atom_header; | |
| 1639 atom->last = atom_header + atom_size; | |
| 1640 | |
| 1641 trak->vmhd_size += atom_size; | |
| 1642 trak->out[NGX_HTTP_MP4_SMHD_ATOM].buf = atom; | |
| 1643 | |
| 1644 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1645 | |
| 1646 return NGX_OK; | |
| 1647 } | |
| 1648 | |
| 1649 | |
| 1650 static ngx_int_t | |
| 1651 ngx_http_mp4_read_dinf_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1652 { | |
| 1653 u_char *atom_header; | |
| 1654 size_t atom_size; | |
| 1655 ngx_buf_t *atom; | |
| 1656 ngx_http_mp4_trak_t *trak; | |
| 1657 | |
| 1658 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 dinf atom"); | |
| 1659 | |
| 1660 atom_header = ngx_mp4_atom_header(mp4); | |
| 1661 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1662 ngx_mp4_set_32value(atom_header, atom_size); | |
| 1663 ngx_mp4_set_atom_name(atom_header, 'd', 'i', 'n', 'f'); | |
| 1664 | |
| 1665 trak = ngx_mp4_last_trak(mp4); | |
| 1666 | |
| 1667 atom = &trak->dinf_atom_buf; | |
| 1668 atom->temporary = 1; | |
| 1669 atom->pos = atom_header; | |
| 1670 atom->last = atom_header + atom_size; | |
| 1671 | |
| 1672 trak->dinf_size += atom_size; | |
| 1673 trak->out[NGX_HTTP_MP4_DINF_ATOM].buf = atom; | |
| 1674 | |
| 1675 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1676 | |
| 1677 return NGX_OK; | |
| 1678 } | |
| 1679 | |
| 1680 | |
| 1681 static ngx_int_t | |
| 1682 ngx_http_mp4_read_stbl_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1683 { | |
| 1684 u_char *atom_header; | |
| 1685 ngx_buf_t *atom; | |
| 1686 ngx_http_mp4_trak_t *trak; | |
| 1687 | |
| 1688 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process stbl atom"); | |
| 1689 | |
| 1690 atom_header = ngx_mp4_atom_header(mp4); | |
| 1691 ngx_mp4_set_atom_name(atom_header, 's', 't', 'b', 'l'); | |
| 1692 | |
| 1693 trak = ngx_mp4_last_trak(mp4); | |
| 1694 | |
| 1695 atom = &trak->stbl_atom_buf; | |
| 1696 atom->temporary = 1; | |
| 1697 atom->pos = atom_header; | |
| 1698 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
| 1699 | |
| 1700 trak->out[NGX_HTTP_MP4_STBL_ATOM].buf = atom; | |
| 1701 | |
| 1702 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_stbl_atoms, atom_data_size); | |
| 1703 } | |
| 1704 | |
| 1705 | |
| 1706 static void | |
| 1707 ngx_http_mp4_update_stbl_atom(ngx_http_mp4_file_t *mp4, | |
| 1708 ngx_http_mp4_trak_t *trak) | |
| 1709 { | |
| 1710 ngx_buf_t *atom; | |
| 1711 | |
| 1712 trak->size += sizeof(ngx_mp4_atom_header_t); | |
| 1713 atom = &trak->stbl_atom_buf; | |
| 1714 ngx_mp4_set_32value(atom->pos, trak->size); | |
| 1715 } | |
| 1716 | |
| 1717 | |
| 1718 typedef struct { | |
| 1719 u_char size[4]; | |
| 1720 u_char name[4]; | |
| 1721 u_char version[1]; | |
| 1722 u_char flags[3]; | |
| 1723 u_char entries[4]; | |
|
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1724 |
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1725 u_char media_size[4]; |
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1726 u_char media_name[4]; |
| 4085 | 1727 } ngx_mp4_stsd_atom_t; |
| 1728 | |
| 1729 | |
| 1730 static ngx_int_t | |
| 1731 ngx_http_mp4_read_stsd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1732 { | |
| 1733 u_char *atom_header, *atom_table; | |
| 1734 size_t atom_size; | |
| 1735 ngx_buf_t *atom; | |
| 1736 ngx_mp4_stsd_atom_t *stsd_atom; | |
| 1737 ngx_http_mp4_trak_t *trak; | |
| 1738 | |
| 1739 /* sample description atom */ | |
| 1740 | |
| 1741 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsd atom"); | |
| 1742 | |
| 1743 atom_header = ngx_mp4_atom_header(mp4); | |
| 1744 stsd_atom = (ngx_mp4_stsd_atom_t *) atom_header; | |
| 1745 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
| 1746 atom_table = atom_header + atom_size; | |
| 1747 ngx_mp4_set_32value(stsd_atom->size, atom_size); | |
| 1748 ngx_mp4_set_atom_name(stsd_atom, 's', 't', 's', 'd'); | |
| 1749 | |
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1750 if ((uint64_t) (sizeof(ngx_mp4_stsd_atom_t) - sizeof(ngx_mp4_atom_header_t)) |
| 4106 | 1751 > atom_data_size) |
| 1752 { | |
|
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1753 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1754 "\"%s\" mp4 stsd atom too large", |
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1755 mp4->file.name.data); |
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1756 return NGX_ERROR; |
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1757 } |
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1758 |
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1759 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
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1760 "stsd entries:%uD, media:%*s", |
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1761 ngx_mp4_get_32value(stsd_atom->entries), |
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1762 4, stsd_atom->media_name); |
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1763 |
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1764 /* supported media format: "avc1" (H.264) and "mp4a" (MPEG-4/AAC) */ |
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1765 |
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1766 if (ngx_strncmp(stsd_atom->media_name, "avc1", 4) != 0 |
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1767 && ngx_strncmp(stsd_atom->media_name, "mp4a", 4) != 0) |
| 4085 | 1768 { |
|
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1769 return NGX_DECLINED; |
| 4085 | 1770 } |
| 1771 | |
| 1772 trak = ngx_mp4_last_trak(mp4); | |
| 1773 | |
| 1774 atom = &trak->stsd_atom_buf; | |
| 1775 atom->temporary = 1; | |
| 1776 atom->pos = atom_header; | |
| 1777 atom->last = atom_table; | |
| 1778 | |
| 1779 trak->out[NGX_HTTP_MP4_STSD_ATOM].buf = atom; | |
| 1780 trak->size += atom_size; | |
| 1781 | |
| 1782 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1783 | |
| 1784 return NGX_OK; | |
| 1785 } | |
| 1786 | |
| 1787 | |
| 1788 typedef struct { | |
| 1789 u_char size[4]; | |
| 1790 u_char name[4]; | |
| 1791 u_char version[1]; | |
| 1792 u_char flags[3]; | |
| 1793 u_char entries[4]; | |
| 1794 } ngx_mp4_stts_atom_t; | |
| 1795 | |
| 1796 typedef struct { | |
| 1797 u_char count[4]; | |
| 1798 u_char duration[4]; | |
| 1799 } ngx_mp4_stts_entry_t; | |
| 1800 | |
| 1801 | |
| 1802 static ngx_int_t | |
| 1803 ngx_http_mp4_read_stts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1804 { | |
| 1805 u_char *atom_header, *atom_table, *atom_end; | |
| 1806 uint32_t entries; | |
| 1807 ngx_buf_t *atom, *data; | |
| 1808 ngx_mp4_stts_atom_t *stts_atom; | |
| 1809 ngx_http_mp4_trak_t *trak; | |
| 1810 | |
| 1811 /* time-to-sample atom */ | |
| 1812 | |
| 1813 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stts atom"); | |
| 1814 | |
| 1815 atom_header = ngx_mp4_atom_header(mp4); | |
| 1816 stts_atom = (ngx_mp4_stts_atom_t *) atom_header; | |
| 1817 ngx_mp4_set_atom_name(stts_atom, 's', 't', 't', 's'); | |
| 1818 | |
| 1819 entries = ngx_mp4_get_32value(stts_atom->entries); | |
| 1820 | |
| 1821 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 1822 "mp4 time-to-sample entries:%uD", entries); |
| 4085 | 1823 |
| 1824 atom_table = atom_header + sizeof(ngx_mp4_stts_atom_t); | |
| 1825 atom_end = atom_table + entries * sizeof(ngx_mp4_stts_entry_t); | |
| 1826 | |
| 1827 if ((uint64_t) (atom_end - stts_atom->version) > atom_data_size) { | |
| 1828 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 1829 "\"%s\" mp4 stts atom too large", | |
| 1830 mp4->file.name.data); | |
| 1831 return NGX_ERROR; | |
| 1832 } | |
| 1833 | |
| 1834 trak = ngx_mp4_last_trak(mp4); | |
| 1835 trak->time_to_sample_entries = entries; | |
| 1836 | |
| 1837 atom = &trak->stts_atom_buf; | |
| 1838 atom->temporary = 1; | |
| 1839 atom->pos = atom_header; | |
| 1840 atom->last = atom_table; | |
| 1841 | |
| 1842 data = &trak->stts_data_buf; | |
| 1843 data->temporary = 1; | |
| 1844 data->pos = atom_table; | |
| 1845 data->last = atom_end; | |
| 1846 | |
| 1847 trak->out[NGX_HTTP_MP4_STTS_ATOM].buf = atom; | |
| 1848 trak->out[NGX_HTTP_MP4_STTS_DATA].buf = data; | |
| 1849 | |
| 1850 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1851 | |
| 1852 return NGX_OK; | |
| 1853 } | |
| 1854 | |
| 1855 | |
| 1856 static ngx_int_t | |
| 1857 ngx_http_mp4_update_stts_atom(ngx_http_mp4_file_t *mp4, | |
| 1858 ngx_http_mp4_trak_t *trak) | |
| 1859 { | |
| 1860 size_t atom_size; | |
| 1861 uint32_t entries, count, duration; | |
| 1862 uint64_t start_time; | |
| 1863 ngx_buf_t *atom, *data; | |
| 1864 ngx_uint_t start_sample; | |
| 1865 ngx_mp4_stts_atom_t *stts_atom; | |
| 1866 ngx_mp4_stts_entry_t *entry, *end; | |
| 1867 | |
| 1868 /* | |
| 1869 * mdia.minf.stbl.stts updating requires trak->timescale | |
| 1870 * from mdia.mdhd atom which may reside after mdia.minf | |
| 1871 */ | |
| 1872 | |
| 1873 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1874 "mp4 stts atom update"); | |
| 1875 | |
| 1876 data = trak->out[NGX_HTTP_MP4_STTS_DATA].buf; | |
| 1877 | |
| 1878 if (data == NULL) { | |
| 1879 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 1880 "no mp4 stts atoms were found in \"%s\"", | |
| 1881 mp4->file.name.data); | |
| 1882 return NGX_ERROR; | |
| 1883 } | |
| 1884 | |
| 1885 entries = trak->time_to_sample_entries; | |
|
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1886 start_time = (uint64_t) mp4->start * trak->timescale / 1000; |
| 4085 | 1887 |
| 1888 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 1889 "time-to-sample start_time:%uL", start_time); |
| 4085 | 1890 |
| 1891 start_sample = 0; | |
| 1892 entry = (ngx_mp4_stts_entry_t *) data->pos; | |
| 1893 end = (ngx_mp4_stts_entry_t *) data->last; | |
| 1894 | |
| 1895 while (entry < end) { | |
| 1896 count = ngx_mp4_get_32value(entry->count); | |
| 1897 duration = ngx_mp4_get_32value(entry->duration); | |
| 1898 | |
| 1899 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1900 "count:%uD, duration:%uD", count, duration); | |
| 1901 | |
| 4306 | 1902 if (start_time < (uint64_t) count * duration) { |
| 4085 | 1903 start_sample += (ngx_uint_t) (start_time / duration); |
| 1904 count -= start_sample; | |
| 1905 ngx_mp4_set_32value(entry->count, count); | |
| 1906 goto found; | |
| 1907 } | |
| 1908 | |
| 1909 start_sample += count; | |
| 1910 start_time -= count * duration; | |
| 1911 entries--; | |
| 1912 entry++; | |
| 1913 } | |
| 1914 | |
| 1915 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 4094 | 1916 "start time is out mp4 stts samples in \"%s\"", |
| 4085 | 1917 mp4->file.name.data); |
| 1918 | |
| 1919 return NGX_ERROR; | |
| 1920 | |
| 1921 found: | |
| 1922 | |
| 1923 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 1924 "start_sample:%ui, new count:%uD", start_sample, count); | |
| 1925 | |
| 1926 trak->start_sample = start_sample; | |
| 1927 | |
| 1928 data->pos = (u_char *) entry; | |
| 1929 atom_size = sizeof(ngx_mp4_stts_atom_t) + (data->last - data->pos); | |
| 1930 trak->size += atom_size; | |
| 1931 | |
| 1932 atom = trak->out[NGX_HTTP_MP4_STTS_ATOM].buf; | |
| 1933 stts_atom = (ngx_mp4_stts_atom_t *) atom->pos; | |
| 1934 ngx_mp4_set_32value(stts_atom->size, atom_size); | |
| 1935 ngx_mp4_set_32value(stts_atom->entries, entries); | |
| 1936 | |
| 1937 return NGX_OK; | |
| 1938 } | |
| 1939 | |
| 1940 | |
| 1941 typedef struct { | |
| 1942 u_char size[4]; | |
| 1943 u_char name[4]; | |
| 1944 u_char version[1]; | |
| 1945 u_char flags[3]; | |
| 1946 u_char entries[4]; | |
| 1947 } ngx_http_mp4_stss_atom_t; | |
| 1948 | |
| 1949 | |
| 1950 static ngx_int_t | |
| 1951 ngx_http_mp4_read_stss_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 1952 { | |
| 1953 u_char *atom_header, *atom_table, *atom_end; | |
| 1954 uint32_t entries; | |
| 1955 ngx_buf_t *atom, *data; | |
| 1956 ngx_http_mp4_trak_t *trak; | |
| 1957 ngx_http_mp4_stss_atom_t *stss_atom; | |
| 1958 | |
| 1959 /* sync samples atom */ | |
| 1960 | |
| 1961 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stss atom"); | |
| 1962 | |
| 1963 atom_header = ngx_mp4_atom_header(mp4); | |
| 1964 stss_atom = (ngx_http_mp4_stss_atom_t *) atom_header; | |
| 1965 ngx_mp4_set_atom_name(stss_atom, 's', 't', 's', 's'); | |
| 1966 | |
| 1967 entries = ngx_mp4_get_32value(stss_atom->entries); | |
| 1968 | |
| 1969 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 1970 "sync sample entries:%uD", entries); |
| 4085 | 1971 |
| 1972 trak = ngx_mp4_last_trak(mp4); | |
| 1973 trak->sync_samples_entries = entries; | |
| 1974 | |
| 1975 atom_table = atom_header + sizeof(ngx_http_mp4_stss_atom_t); | |
| 1976 | |
| 1977 atom = &trak->stss_atom_buf; | |
| 1978 atom->temporary = 1; | |
| 1979 atom->pos = atom_header; | |
| 1980 atom->last = atom_table; | |
| 1981 | |
| 1982 atom_end = atom_table + entries * sizeof(uint32_t); | |
| 1983 | |
| 1984 if ((uint64_t) (atom_end - stss_atom->version) > atom_data_size) { | |
| 1985 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 1986 "\"%s\" mp4 stss atom too large", mp4->file.name.data); | |
| 1987 return NGX_ERROR; | |
| 1988 } | |
| 1989 | |
| 1990 data = &trak->stss_data_buf; | |
| 1991 data->temporary = 1; | |
| 1992 data->pos = atom_table; | |
| 1993 data->last = atom_end; | |
| 1994 | |
| 1995 trak->out[NGX_HTTP_MP4_STSS_ATOM].buf = atom; | |
| 1996 trak->out[NGX_HTTP_MP4_STSS_DATA].buf = data; | |
| 1997 | |
| 1998 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 1999 | |
| 2000 return NGX_OK; | |
| 2001 } | |
| 2002 | |
| 2003 | |
| 2004 static ngx_int_t | |
| 2005 ngx_http_mp4_update_stss_atom(ngx_http_mp4_file_t *mp4, | |
| 2006 ngx_http_mp4_trak_t *trak) | |
| 2007 { | |
| 2008 size_t atom_size; | |
| 2009 uint32_t entries, sample, start_sample, *entry, *end; | |
| 2010 ngx_buf_t *atom, *data; | |
| 2011 ngx_http_mp4_stss_atom_t *stss_atom; | |
| 2012 | |
| 2013 /* | |
| 2014 * mdia.minf.stbl.stss updating requires trak->start_sample | |
| 2015 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2016 * atom which may reside after mdia.minf | |
| 2017 */ | |
| 2018 | |
| 2019 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2020 "mp4 stss atom update"); | |
| 2021 | |
| 2022 data = trak->out[NGX_HTTP_MP4_STSS_DATA].buf; | |
| 2023 | |
| 2024 if (data == NULL) { | |
| 2025 return NGX_OK; | |
| 2026 } | |
| 2027 | |
| 2028 /* sync samples starts from 1 */ | |
| 2029 start_sample = trak->start_sample + 1; | |
| 2030 entries = trak->sync_samples_entries; | |
| 2031 | |
| 2032 entry = (uint32_t *) data->pos; | |
| 2033 end = (uint32_t *) data->last; | |
| 2034 | |
| 2035 while (entry < end) { | |
| 2036 sample = ngx_mp4_get_32value(entry); | |
| 2037 | |
| 2038 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2039 "start:%uD, sync:%uD", start_sample, sample); | |
| 2040 | |
| 2041 if (sample >= start_sample) { | |
| 2042 goto found; | |
| 2043 } | |
| 2044 | |
| 2045 entries--; | |
| 2046 entry++; | |
| 2047 } | |
| 2048 | |
| 2049 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2050 "start sample is out of mp4 stss atom in \"%s\"", | |
| 2051 mp4->file.name.data); | |
| 2052 | |
| 2053 return NGX_ERROR; | |
| 2054 | |
| 2055 found: | |
| 2056 | |
| 2057 data->pos = (u_char *) entry; | |
| 2058 | |
| 2059 start_sample = trak->start_sample; | |
| 2060 | |
| 2061 while (entry < end) { | |
| 2062 sample = ngx_mp4_get_32value(entry); | |
| 2063 sample -= start_sample; | |
| 2064 ngx_mp4_set_32value(entry, sample); | |
| 2065 entry++; | |
| 2066 } | |
| 2067 | |
| 2068 atom_size = sizeof(ngx_http_mp4_stss_atom_t) + (data->last - data->pos); | |
| 2069 trak->size += atom_size; | |
| 2070 | |
| 2071 atom = trak->out[NGX_HTTP_MP4_STSS_ATOM].buf; | |
| 2072 stss_atom = (ngx_http_mp4_stss_atom_t *) atom->pos; | |
| 2073 | |
| 2074 ngx_mp4_set_32value(stss_atom->size, atom_size); | |
| 2075 ngx_mp4_set_32value(stss_atom->entries, entries); | |
| 2076 | |
| 2077 return NGX_OK; | |
| 2078 } | |
| 2079 | |
| 2080 | |
| 2081 typedef struct { | |
| 2082 u_char size[4]; | |
| 2083 u_char name[4]; | |
| 2084 u_char version[1]; | |
| 2085 u_char flags[3]; | |
| 2086 u_char entries[4]; | |
| 2087 } ngx_mp4_ctts_atom_t; | |
| 2088 | |
| 2089 typedef struct { | |
| 2090 u_char count[4]; | |
| 2091 u_char offset[4]; | |
| 2092 } ngx_mp4_ctts_entry_t; | |
| 2093 | |
| 2094 | |
| 2095 static ngx_int_t | |
| 2096 ngx_http_mp4_read_ctts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2097 { | |
| 2098 u_char *atom_header, *atom_table, *atom_end; | |
| 2099 uint32_t entries; | |
| 2100 ngx_buf_t *atom, *data; | |
| 2101 ngx_mp4_ctts_atom_t *ctts_atom; | |
| 2102 ngx_http_mp4_trak_t *trak; | |
| 2103 | |
| 2104 /* composition offsets atom */ | |
| 2105 | |
| 2106 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 ctts atom"); | |
| 2107 | |
| 2108 atom_header = ngx_mp4_atom_header(mp4); | |
| 2109 ctts_atom = (ngx_mp4_ctts_atom_t *) atom_header; | |
| 2110 ngx_mp4_set_atom_name(ctts_atom, 'c', 't', 't', 's'); | |
| 2111 | |
| 2112 entries = ngx_mp4_get_32value(ctts_atom->entries); | |
| 2113 | |
| 2114 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 2115 "composition offset entries:%uD", entries); |
| 4085 | 2116 |
| 2117 trak = ngx_mp4_last_trak(mp4); | |
| 2118 trak->composition_offset_entries = entries; | |
| 2119 | |
| 2120 atom_table = atom_header + sizeof(ngx_mp4_ctts_atom_t); | |
| 2121 | |
| 2122 atom = &trak->ctts_atom_buf; | |
| 2123 atom->temporary = 1; | |
| 2124 atom->pos = atom_header; | |
| 2125 atom->last = atom_table; | |
| 2126 | |
| 2127 atom_end = atom_table + entries * sizeof(ngx_mp4_ctts_entry_t); | |
| 2128 | |
| 2129 if ((uint64_t) (atom_end - ctts_atom->version) > atom_data_size) { | |
| 2130 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2131 "\"%s\" mp4 ctts atom too large", mp4->file.name.data); | |
| 2132 return NGX_ERROR; | |
| 2133 } | |
| 2134 | |
| 2135 data = &trak->ctts_data_buf; | |
| 2136 data->temporary = 1; | |
| 2137 data->pos = atom_table; | |
| 2138 data->last = atom_end; | |
| 2139 | |
| 2140 trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf = atom; | |
| 2141 trak->out[NGX_HTTP_MP4_CTTS_DATA].buf = data; | |
| 2142 | |
| 2143 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2144 | |
| 2145 return NGX_OK; | |
| 2146 } | |
| 2147 | |
| 2148 | |
| 2149 static void | |
| 2150 ngx_http_mp4_update_ctts_atom(ngx_http_mp4_file_t *mp4, | |
| 2151 ngx_http_mp4_trak_t *trak) | |
| 2152 { | |
| 2153 size_t atom_size; | |
| 2154 uint32_t entries, count, start_sample; | |
| 2155 ngx_buf_t *atom, *data; | |
| 2156 ngx_mp4_ctts_atom_t *ctts_atom; | |
| 2157 ngx_mp4_ctts_entry_t *entry, *end; | |
| 2158 | |
| 2159 /* | |
| 2160 * mdia.minf.stbl.ctts updating requires trak->start_sample | |
| 2161 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2162 * atom which may reside after mdia.minf | |
| 2163 */ | |
| 2164 | |
| 2165 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2166 "mp4 ctts atom update"); | |
| 2167 | |
| 2168 data = trak->out[NGX_HTTP_MP4_CTTS_DATA].buf; | |
| 2169 | |
| 2170 if (data == NULL) { | |
| 2171 return; | |
| 2172 } | |
| 2173 | |
| 2174 /* sync samples starts from 1 */ | |
| 2175 start_sample = trak->start_sample + 1; | |
| 2176 entries = trak->composition_offset_entries; | |
| 2177 entry = (ngx_mp4_ctts_entry_t *) data->pos; | |
| 2178 end = (ngx_mp4_ctts_entry_t *) data->last; | |
| 2179 | |
| 2180 while (entry < end) { | |
| 2181 count = ngx_mp4_get_32value(entry->count); | |
| 2182 | |
|
4088
8fe1da7b8386
bugfix of r4086: nginx could not be built without debug log.
Igor Sysoev <igor@sysoev.ru>
parents:
4087
diff
changeset
|
2183 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4085 | 2184 "start:%uD, count:%uD, offset:%uD", |
| 2185 start_sample, count, ngx_mp4_get_32value(entry->offset)); | |
| 2186 | |
| 2187 if (start_sample <= count) { | |
| 2188 count -= (start_sample - 1); | |
| 2189 ngx_mp4_set_32value(entry->count, count); | |
| 2190 goto found; | |
| 2191 } | |
| 2192 | |
| 2193 start_sample -= count; | |
| 2194 entries--; | |
| 2195 entry++; | |
| 2196 } | |
| 2197 | |
| 2198 trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf = NULL; | |
| 2199 trak->out[NGX_HTTP_MP4_CTTS_DATA].buf = NULL; | |
| 2200 | |
| 2201 return; | |
| 2202 | |
| 2203 found: | |
| 2204 | |
| 2205 data->pos = (u_char *) entry; | |
| 2206 atom_size = sizeof(ngx_mp4_ctts_atom_t) + (data->last - data->pos); | |
| 2207 trak->size += atom_size; | |
| 2208 | |
| 2209 atom = trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf; | |
| 2210 ctts_atom = (ngx_mp4_ctts_atom_t *) atom->pos; | |
| 2211 | |
| 2212 ngx_mp4_set_32value(ctts_atom->size, atom_size); | |
| 2213 ngx_mp4_set_32value(ctts_atom->entries, entries); | |
| 2214 | |
| 2215 return; | |
| 2216 } | |
| 2217 | |
| 2218 | |
| 2219 typedef struct { | |
| 2220 u_char size[4]; | |
| 2221 u_char name[4]; | |
| 2222 u_char version[1]; | |
| 2223 u_char flags[3]; | |
| 2224 u_char entries[4]; | |
| 2225 } ngx_mp4_stsc_atom_t; | |
| 2226 | |
| 2227 | |
| 2228 static ngx_int_t | |
| 2229 ngx_http_mp4_read_stsc_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2230 { | |
| 2231 u_char *atom_header, *atom_table, *atom_end; | |
| 2232 uint32_t entries; | |
| 2233 ngx_buf_t *atom, *data; | |
| 2234 ngx_mp4_stsc_atom_t *stsc_atom; | |
| 2235 ngx_http_mp4_trak_t *trak; | |
| 2236 | |
| 2237 /* sample-to-chunk atom */ | |
| 2238 | |
| 2239 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsc atom"); | |
| 2240 | |
| 2241 atom_header = ngx_mp4_atom_header(mp4); | |
| 2242 stsc_atom = (ngx_mp4_stsc_atom_t *) atom_header; | |
| 2243 ngx_mp4_set_atom_name(stsc_atom, 's', 't', 's', 'c'); | |
| 2244 | |
| 2245 entries = ngx_mp4_get_32value(stsc_atom->entries); | |
| 2246 | |
| 2247 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 4096 | 2248 "sample-to-chunk entries:%uD", entries); |
| 4085 | 2249 |
| 2250 atom_table = atom_header + sizeof(ngx_mp4_stsc_atom_t); | |
| 2251 atom_end = atom_table + entries * sizeof(ngx_mp4_stsc_entry_t); | |
| 2252 | |
| 2253 if ((uint64_t) (atom_end - stsc_atom->version) > atom_data_size) { | |
| 2254 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2255 "\"%s\" mp4 stsc atom too large", | |
| 2256 mp4->file.name.data); | |
| 2257 return NGX_ERROR; | |
| 2258 } | |
| 2259 | |
| 2260 trak = ngx_mp4_last_trak(mp4); | |
| 2261 trak->sample_to_chunk_entries = entries; | |
| 2262 | |
| 2263 atom = &trak->stsc_atom_buf; | |
| 2264 atom->temporary = 1; | |
| 2265 atom->pos = atom_header; | |
| 2266 atom->last = atom_table; | |
| 2267 | |
| 2268 data = &trak->stsc_data_buf; | |
| 2269 data->temporary = 1; | |
| 2270 data->pos = atom_table; | |
| 2271 data->last = atom_end; | |
| 2272 | |
| 2273 trak->out[NGX_HTTP_MP4_STSC_ATOM].buf = atom; | |
| 2274 trak->out[NGX_HTTP_MP4_STSC_DATA].buf = data; | |
| 2275 | |
| 2276 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2277 | |
| 2278 return NGX_OK; | |
| 2279 } | |
| 2280 | |
| 2281 | |
| 2282 static ngx_int_t | |
| 2283 ngx_http_mp4_update_stsc_atom(ngx_http_mp4_file_t *mp4, | |
| 2284 ngx_http_mp4_trak_t *trak) | |
| 2285 { | |
| 2286 size_t atom_size; | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2287 uint32_t start_sample, entries, chunk, samples, id, |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2288 next_chunk, n; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2289 ngx_buf_t *atom, *data, *buf; |
| 4085 | 2290 ngx_mp4_stsc_atom_t *stsc_atom; |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2291 ngx_mp4_stsc_entry_t *entry, *first, *end; |
| 4085 | 2292 |
| 2293 /* | |
| 2294 * mdia.minf.stbl.stsc updating requires trak->start_sample | |
| 2295 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2296 * atom which may reside after mdia.minf | |
| 2297 */ | |
| 2298 | |
| 2299 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2300 "mp4 stsc atom update"); | |
| 2301 | |
| 2302 data = trak->out[NGX_HTTP_MP4_STSC_DATA].buf; | |
| 2303 | |
| 2304 if (data == NULL) { | |
| 2305 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2306 "no mp4 stsc atoms were found in \"%s\"", | |
| 2307 mp4->file.name.data); | |
| 2308 return NGX_ERROR; | |
| 2309 } | |
| 2310 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2311 start_sample = (uint32_t) trak->start_sample; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2312 entries = trak->sample_to_chunk_entries - 1; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2313 |
| 4085 | 2314 entry = (ngx_mp4_stsc_entry_t *) data->pos; |
| 2315 end = (ngx_mp4_stsc_entry_t *) data->last; | |
| 2316 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2317 chunk = ngx_mp4_get_32value(entry->chunk); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2318 samples = ngx_mp4_get_32value(entry->samples); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2319 id = ngx_mp4_get_32value(entry->id); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2320 entry++; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2321 |
| 4085 | 2322 while (entry < end) { |
| 2323 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2324 next_chunk = ngx_mp4_get_32value(entry->chunk); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2325 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2326 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2327 "start_sample:%uD, chunk:%uD, chunks:%uD, " |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2328 "samples:%uD, id:%uD", |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2329 start_sample, chunk, next_chunk - chunk, samples, id); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2330 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2331 n = (next_chunk - chunk) * samples; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2332 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2333 if (start_sample <= n) { |
| 4085 | 2334 goto found; |
| 2335 } | |
| 2336 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2337 start_sample -= n; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2338 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2339 chunk = next_chunk; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2340 samples = ngx_mp4_get_32value(entry->samples); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2341 id = ngx_mp4_get_32value(entry->id); |
| 4085 | 2342 entries--; |
| 2343 entry++; | |
| 2344 } | |
| 2345 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2346 next_chunk = trak->chunks; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2347 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2348 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2349 "start_sample:%uD, chunk:%uD, chunks:%uD, samples:%uD", |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2350 start_sample, chunk, next_chunk - chunk, samples); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2351 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2352 n = (next_chunk - chunk) * samples; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2353 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2354 if (start_sample > n) { |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2355 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2356 "start time is out mp4 stsc chunks in \"%s\"", |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2357 mp4->file.name.data); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2358 return NGX_ERROR; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2359 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2360 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2361 found: |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2362 |
| 4085 | 2363 entries++; |
| 2364 entry--; | |
| 2365 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2366 if (samples == 0) { |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2367 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2368 "zero number of samples in \"%s\"", |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2369 mp4->file.name.data); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2370 return NGX_ERROR; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2371 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2372 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2373 trak->start_chunk = chunk - 1; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2374 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2375 trak->start_chunk += start_sample / samples; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2376 trak->chunk_samples = start_sample % samples; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2377 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2378 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2379 "start chunk:%ui, samples:%uD", |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2380 trak->start_chunk, trak->chunk_samples); |
| 4085 | 2381 |
| 2382 data->pos = (u_char *) entry; | |
| 2383 atom_size = sizeof(ngx_mp4_stsc_atom_t) + (data->last - data->pos); | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2384 |
|
4382
b4d54fa76853
Fixed mp4 if first entry in stsc was skipped (ticket #72).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4306
diff
changeset
|
2385 ngx_mp4_set_32value(entry->chunk, 1); |
|
b4d54fa76853
Fixed mp4 if first entry in stsc was skipped (ticket #72).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4306
diff
changeset
|
2386 |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2387 if (trak->chunk_samples) { |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2388 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2389 first = &trak->stsc_chunk_entry; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2390 ngx_mp4_set_32value(first->chunk, 1); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2391 ngx_mp4_set_32value(first->samples, samples - trak->chunk_samples); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2392 ngx_mp4_set_32value(first->id, id); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2393 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2394 buf = &trak->stsc_chunk_buf; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2395 buf->temporary = 1; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2396 buf->pos = (u_char *) first; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2397 buf->last = (u_char *) first + sizeof(ngx_mp4_stsc_entry_t); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2398 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2399 trak->out[NGX_HTTP_MP4_STSC_CHUNK].buf = buf; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2400 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2401 ngx_mp4_set_32value(entry->chunk, 2); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2402 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2403 atom_size += sizeof(ngx_mp4_stsc_entry_t); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2404 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2405 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2406 while (++entry < end) { |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2407 chunk = ngx_mp4_get_32value(entry->chunk); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2408 chunk -= trak->start_chunk; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2409 ngx_mp4_set_32value(entry->chunk, chunk); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2410 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2411 |
| 4085 | 2412 trak->size += atom_size; |
| 2413 | |
| 2414 atom = trak->out[NGX_HTTP_MP4_STSC_ATOM].buf; | |
| 2415 stsc_atom = (ngx_mp4_stsc_atom_t *) atom->pos; | |
| 2416 | |
| 2417 ngx_mp4_set_32value(stsc_atom->size, atom_size); | |
| 2418 ngx_mp4_set_32value(stsc_atom->entries, entries); | |
| 2419 | |
| 2420 return NGX_OK; | |
| 2421 } | |
| 2422 | |
| 2423 | |
| 2424 typedef struct { | |
| 2425 u_char size[4]; | |
| 2426 u_char name[4]; | |
| 2427 u_char version[1]; | |
| 2428 u_char flags[3]; | |
| 2429 u_char uniform_size[4]; | |
| 2430 u_char entries[4]; | |
| 2431 } ngx_mp4_stsz_atom_t; | |
| 2432 | |
| 2433 | |
| 2434 static ngx_int_t | |
| 2435 ngx_http_mp4_read_stsz_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2436 { | |
| 2437 u_char *atom_header, *atom_table, *atom_end; | |
| 2438 size_t atom_size; | |
| 2439 uint32_t entries, size; | |
| 2440 ngx_buf_t *atom, *data; | |
| 2441 ngx_mp4_stsz_atom_t *stsz_atom; | |
| 2442 ngx_http_mp4_trak_t *trak; | |
| 2443 | |
| 2444 /* sample sizes atom */ | |
| 2445 | |
| 2446 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsz atom"); | |
| 2447 | |
| 2448 atom_header = ngx_mp4_atom_header(mp4); | |
| 2449 stsz_atom = (ngx_mp4_stsz_atom_t *) atom_header; | |
| 2450 ngx_mp4_set_atom_name(stsz_atom, 's', 't', 's', 'z'); | |
| 2451 | |
| 2452 size = ngx_mp4_get_32value(stsz_atom->uniform_size); | |
| 2453 entries = ngx_mp4_get_32value(stsz_atom->entries); | |
| 2454 | |
| 2455 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2456 "sample uniform size:%uD, entries:%uD", size, entries); | |
| 2457 | |
| 2458 trak = ngx_mp4_last_trak(mp4); | |
| 2459 trak->sample_sizes_entries = entries; | |
| 2460 | |
| 2461 atom_table = atom_header + sizeof(ngx_mp4_stsz_atom_t); | |
| 2462 | |
| 2463 atom = &trak->stsz_atom_buf; | |
| 2464 atom->temporary = 1; | |
| 2465 atom->pos = atom_header; | |
| 2466 atom->last = atom_table; | |
| 2467 | |
| 2468 trak->out[NGX_HTTP_MP4_STSZ_ATOM].buf = atom; | |
| 2469 | |
| 2470 if (size == 0) { | |
| 2471 atom_end = atom_table + entries * sizeof(uint32_t); | |
| 2472 | |
| 2473 if ((uint64_t) (atom_end - stsz_atom->version) > atom_data_size) { | |
| 2474 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2475 "\"%s\" mp4 stsz atom too large", | |
| 2476 mp4->file.name.data); | |
| 2477 return NGX_ERROR; | |
| 2478 } | |
| 2479 | |
| 2480 data = &trak->stsz_data_buf; | |
| 2481 data->temporary = 1; | |
| 2482 data->pos = atom_table; | |
| 2483 data->last = atom_end; | |
| 2484 | |
| 2485 trak->out[NGX_HTTP_MP4_STSZ_DATA].buf = data; | |
| 2486 | |
| 2487 } else { | |
| 2488 /* if size != 0 then all samples are the same size */ | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2489 /* TODO : chunk samples */ |
| 4085 | 2490 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; |
| 2491 ngx_mp4_set_32value(atom_header, atom_size); | |
| 2492 trak->size += atom_size; | |
| 2493 } | |
| 2494 | |
| 2495 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2496 | |
| 2497 return NGX_OK; | |
| 2498 } | |
| 2499 | |
| 2500 | |
| 2501 static void | |
| 2502 ngx_http_mp4_update_stsz_atom(ngx_http_mp4_file_t *mp4, | |
| 2503 ngx_http_mp4_trak_t *trak) | |
| 2504 { | |
| 2505 size_t atom_size; | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2506 uint32_t *pos, *end; |
| 4085 | 2507 ngx_buf_t *atom, *data; |
| 2508 ngx_mp4_stsz_atom_t *stsz_atom; | |
| 2509 | |
| 2510 /* | |
| 2511 * mdia.minf.stbl.stsz updating requires trak->start_sample | |
| 2512 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
| 2513 * atom which may reside after mdia.minf | |
| 2514 */ | |
| 2515 | |
| 2516 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2517 "mp4 stsz atom update"); | |
| 2518 | |
| 2519 data = trak->out[NGX_HTTP_MP4_STSZ_DATA].buf; | |
| 2520 | |
| 2521 if (data) { | |
| 2522 data->pos += trak->start_sample * sizeof(uint32_t); | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2523 end = (uint32_t *) data->pos; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2524 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2525 for (pos = end - trak->chunk_samples; pos < end; pos++) { |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2526 trak->chunk_samples_size += ngx_mp4_get_32value(pos); |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2527 } |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2528 |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2529 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
| 4112 | 2530 "chunk samples sizes:%uL", trak->chunk_samples_size); |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2531 |
| 4085 | 2532 atom_size = sizeof(ngx_mp4_stsz_atom_t) + (data->last - data->pos); |
| 2533 trak->size += atom_size; | |
| 2534 | |
| 2535 atom = trak->out[NGX_HTTP_MP4_STSZ_ATOM].buf; | |
| 2536 stsz_atom = (ngx_mp4_stsz_atom_t *) atom->pos; | |
| 2537 | |
| 2538 ngx_mp4_set_32value(stsz_atom->size, atom_size); | |
| 2539 ngx_mp4_set_32value(stsz_atom->entries, | |
| 2540 trak->sample_sizes_entries - trak->start_sample); | |
| 2541 } | |
| 2542 } | |
| 2543 | |
| 2544 | |
| 2545 typedef struct { | |
| 2546 u_char size[4]; | |
| 2547 u_char name[4]; | |
| 2548 u_char version[1]; | |
| 2549 u_char flags[3]; | |
| 2550 u_char entries[4]; | |
| 2551 } ngx_mp4_stco_atom_t; | |
| 2552 | |
| 2553 | |
| 2554 static ngx_int_t | |
| 2555 ngx_http_mp4_read_stco_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2556 { | |
| 2557 u_char *atom_header, *atom_table, *atom_end; | |
| 2558 uint32_t entries; | |
| 2559 ngx_buf_t *atom, *data; | |
| 2560 ngx_mp4_stco_atom_t *stco_atom; | |
| 2561 ngx_http_mp4_trak_t *trak; | |
| 2562 | |
| 2563 /* chunk offsets atom */ | |
| 2564 | |
| 2565 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stco atom"); | |
| 2566 | |
| 2567 atom_header = ngx_mp4_atom_header(mp4); | |
| 2568 stco_atom = (ngx_mp4_stco_atom_t *) atom_header; | |
| 2569 ngx_mp4_set_atom_name(stco_atom, 's', 't', 'c', 'o'); | |
| 2570 | |
| 2571 entries = ngx_mp4_get_32value(stco_atom->entries); | |
| 2572 | |
| 2573 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "chunks:%uD", entries); | |
| 2574 | |
| 2575 atom_table = atom_header + sizeof(ngx_mp4_stco_atom_t); | |
| 2576 atom_end = atom_table + entries * sizeof(uint32_t); | |
| 2577 | |
| 2578 if ((uint64_t) (atom_end - stco_atom->version) > atom_data_size) { | |
| 2579 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2580 "\"%s\" mp4 stco atom too large", mp4->file.name.data); | |
| 2581 return NGX_ERROR; | |
| 2582 } | |
| 2583 | |
| 2584 trak = ngx_mp4_last_trak(mp4); | |
| 2585 trak->chunks = entries; | |
| 2586 | |
| 4107 | 2587 atom = &trak->stco_atom_buf; |
| 4085 | 2588 atom->temporary = 1; |
| 2589 atom->pos = atom_header; | |
| 2590 atom->last = atom_table; | |
| 2591 | |
| 4107 | 2592 data = &trak->stco_data_buf; |
| 4085 | 2593 data->temporary = 1; |
| 2594 data->pos = atom_table; | |
| 2595 data->last = atom_end; | |
| 2596 | |
| 2597 trak->out[NGX_HTTP_MP4_STCO_ATOM].buf = atom; | |
| 2598 trak->out[NGX_HTTP_MP4_STCO_DATA].buf = data; | |
| 2599 | |
| 2600 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2601 | |
| 2602 return NGX_OK; | |
| 2603 } | |
| 2604 | |
| 2605 | |
| 2606 static ngx_int_t | |
| 2607 ngx_http_mp4_update_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 2608 ngx_http_mp4_trak_t *trak) | |
| 2609 { | |
| 2610 size_t atom_size; | |
| 2611 ngx_buf_t *atom, *data; | |
| 2612 ngx_mp4_stco_atom_t *stco_atom; | |
| 2613 | |
| 2614 /* | |
| 2615 * mdia.minf.stbl.stco updating requires trak->start_chunk | |
| 2616 * from mdia.minf.stbl.stsc which depends on value from mdia.mdhd | |
| 2617 * atom which may reside after mdia.minf | |
| 2618 */ | |
| 2619 | |
| 2620 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2621 "mp4 stco atom update"); | |
| 2622 | |
| 2623 data = trak->out[NGX_HTTP_MP4_STCO_DATA].buf; | |
| 2624 | |
| 2625 if (data == NULL) { | |
| 2626 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2627 "no mp4 stco atoms were found in \"%s\"", | |
| 2628 mp4->file.name.data); | |
| 2629 return NGX_ERROR; | |
| 2630 } | |
| 2631 | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2632 data->pos += trak->start_chunk * sizeof(uint32_t); |
| 4085 | 2633 atom_size = sizeof(ngx_mp4_stco_atom_t) + (data->last - data->pos); |
| 2634 trak->size += atom_size; | |
| 2635 | |
| 2636 trak->start_offset = ngx_mp4_get_32value(data->pos); | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2637 trak->start_offset += trak->chunk_samples_size; |
|
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2638 ngx_mp4_set_32value(data->pos, trak->start_offset); |
| 4085 | 2639 |
| 2640 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2641 "start chunk offset:%uD", trak->start_offset); | |
| 2642 | |
| 2643 atom = trak->out[NGX_HTTP_MP4_STCO_ATOM].buf; | |
| 2644 stco_atom = (ngx_mp4_stco_atom_t *) atom->pos; | |
| 2645 | |
| 2646 ngx_mp4_set_32value(stco_atom->size, atom_size); | |
|
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2647 ngx_mp4_set_32value(stco_atom->entries, trak->chunks - trak->start_chunk); |
| 4085 | 2648 |
| 2649 return NGX_OK; | |
| 2650 } | |
| 2651 | |
| 2652 | |
| 2653 static void | |
| 2654 ngx_http_mp4_adjust_stco_atom(ngx_http_mp4_file_t *mp4, | |
| 2655 ngx_http_mp4_trak_t *trak, int32_t adjustment) | |
| 2656 { | |
| 2657 uint32_t offset, *entry, *end; | |
| 2658 ngx_buf_t *data; | |
| 2659 | |
| 2660 /* | |
| 2661 * moov.trak.mdia.minf.stbl.stco adjustment requires | |
| 2662 * minimal start offset of all traks and new moov atom size | |
| 2663 */ | |
| 2664 | |
| 2665 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2666 "mp4 stco atom adjustment"); | |
| 2667 | |
| 2668 data = trak->out[NGX_HTTP_MP4_STCO_DATA].buf; | |
| 2669 entry = (uint32_t *) data->pos; | |
| 2670 end = (uint32_t *) data->last; | |
| 2671 | |
| 2672 while (entry < end) { | |
| 2673 offset = ngx_mp4_get_32value(entry); | |
| 2674 offset += adjustment; | |
| 2675 ngx_mp4_set_32value(entry, offset); | |
| 2676 entry++; | |
| 2677 } | |
| 2678 } | |
| 2679 | |
| 2680 | |
| 4112 | 2681 typedef struct { |
| 2682 u_char size[4]; | |
| 2683 u_char name[4]; | |
| 2684 u_char version[1]; | |
| 2685 u_char flags[3]; | |
| 2686 u_char entries[4]; | |
| 2687 } ngx_mp4_co64_atom_t; | |
| 2688 | |
| 2689 | |
| 2690 static ngx_int_t | |
| 2691 ngx_http_mp4_read_co64_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
| 2692 { | |
| 2693 u_char *atom_header, *atom_table, *atom_end; | |
| 2694 uint32_t entries; | |
| 2695 ngx_buf_t *atom, *data; | |
| 2696 ngx_mp4_co64_atom_t *co64_atom; | |
| 2697 ngx_http_mp4_trak_t *trak; | |
| 2698 | |
| 2699 /* chunk offsets atom */ | |
| 2700 | |
| 2701 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 co64 atom"); | |
| 2702 | |
| 2703 atom_header = ngx_mp4_atom_header(mp4); | |
| 2704 co64_atom = (ngx_mp4_co64_atom_t *) atom_header; | |
| 2705 ngx_mp4_set_atom_name(co64_atom, 'c', 'o', '6', '4'); | |
| 2706 | |
| 2707 entries = ngx_mp4_get_32value(co64_atom->entries); | |
| 2708 | |
| 2709 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "chunks:%uD", entries); | |
| 2710 | |
| 2711 atom_table = atom_header + sizeof(ngx_mp4_co64_atom_t); | |
| 2712 atom_end = atom_table + entries * sizeof(uint64_t); | |
| 2713 | |
| 2714 if ((uint64_t) (atom_end - co64_atom->version) > atom_data_size) { | |
| 2715 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2716 "\"%s\" mp4 co64 atom too large", mp4->file.name.data); | |
| 2717 return NGX_ERROR; | |
| 2718 } | |
| 2719 | |
| 2720 trak = ngx_mp4_last_trak(mp4); | |
| 2721 trak->chunks = entries; | |
| 2722 | |
| 2723 atom = &trak->co64_atom_buf; | |
| 2724 atom->temporary = 1; | |
| 2725 atom->pos = atom_header; | |
| 2726 atom->last = atom_table; | |
| 2727 | |
| 2728 data = &trak->co64_data_buf; | |
| 2729 data->temporary = 1; | |
| 2730 data->pos = atom_table; | |
| 2731 data->last = atom_end; | |
| 2732 | |
| 2733 trak->out[NGX_HTTP_MP4_CO64_ATOM].buf = atom; | |
| 2734 trak->out[NGX_HTTP_MP4_CO64_DATA].buf = data; | |
| 2735 | |
| 2736 ngx_mp4_atom_next(mp4, atom_data_size); | |
| 2737 | |
| 2738 return NGX_OK; | |
| 2739 } | |
| 2740 | |
| 2741 | |
| 2742 static ngx_int_t | |
| 2743 ngx_http_mp4_update_co64_atom(ngx_http_mp4_file_t *mp4, | |
| 2744 ngx_http_mp4_trak_t *trak) | |
| 2745 { | |
| 2746 size_t atom_size; | |
| 2747 ngx_buf_t *atom, *data; | |
| 2748 ngx_mp4_co64_atom_t *co64_atom; | |
| 2749 | |
| 2750 /* | |
| 2751 * mdia.minf.stbl.co64 updating requires trak->start_chunk | |
| 2752 * from mdia.minf.stbl.stsc which depends on value from mdia.mdhd | |
| 2753 * atom which may reside after mdia.minf | |
| 2754 */ | |
| 2755 | |
| 2756 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2757 "mp4 co64 atom update"); | |
| 2758 | |
| 2759 data = trak->out[NGX_HTTP_MP4_CO64_DATA].buf; | |
| 2760 | |
| 2761 if (data == NULL) { | |
| 2762 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
| 2763 "no mp4 co64 atoms were found in \"%s\"", | |
| 2764 mp4->file.name.data); | |
| 2765 return NGX_ERROR; | |
| 2766 } | |
| 2767 | |
| 2768 data->pos += trak->start_chunk * sizeof(uint64_t); | |
| 2769 atom_size = sizeof(ngx_mp4_co64_atom_t) + (data->last - data->pos); | |
| 2770 trak->size += atom_size; | |
| 2771 | |
| 2772 trak->start_offset = ngx_mp4_get_64value(data->pos); | |
| 2773 trak->start_offset += trak->chunk_samples_size; | |
| 2774 ngx_mp4_set_64value(data->pos, trak->start_offset); | |
| 2775 | |
| 2776 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2777 "start chunk offset:%uL", trak->start_offset); | |
| 2778 | |
| 2779 atom = trak->out[NGX_HTTP_MP4_CO64_ATOM].buf; | |
| 2780 co64_atom = (ngx_mp4_co64_atom_t *) atom->pos; | |
| 2781 | |
| 2782 ngx_mp4_set_32value(co64_atom->size, atom_size); | |
| 2783 ngx_mp4_set_32value(co64_atom->entries, trak->chunks - trak->start_chunk); | |
| 2784 | |
| 2785 return NGX_OK; | |
| 2786 } | |
| 2787 | |
| 2788 | |
| 2789 static void | |
| 2790 ngx_http_mp4_adjust_co64_atom(ngx_http_mp4_file_t *mp4, | |
| 2791 ngx_http_mp4_trak_t *trak, off_t adjustment) | |
| 2792 { | |
| 2793 uint64_t offset, *entry, *end; | |
| 2794 ngx_buf_t *data; | |
| 2795 | |
| 2796 /* | |
| 2797 * moov.trak.mdia.minf.stbl.co64 adjustment requires | |
| 2798 * minimal start offset of all traks and new moov atom size | |
| 2799 */ | |
| 2800 | |
| 2801 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
| 2802 "mp4 co64 atom adjustment"); | |
| 2803 | |
| 2804 data = trak->out[NGX_HTTP_MP4_CO64_DATA].buf; | |
| 2805 entry = (uint64_t *) data->pos; | |
| 2806 end = (uint64_t *) data->last; | |
| 2807 | |
| 2808 while (entry < end) { | |
| 2809 offset = ngx_mp4_get_64value(entry); | |
| 2810 offset += adjustment; | |
| 2811 ngx_mp4_set_64value(entry, offset); | |
| 2812 entry++; | |
| 2813 } | |
| 2814 } | |
| 2815 | |
| 2816 | |
| 4085 | 2817 static char * |
| 2818 ngx_http_mp4(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 2819 { | |
| 2820 ngx_http_core_loc_conf_t *clcf; | |
| 2821 | |
| 2822 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 2823 clcf->handler = ngx_http_mp4_handler; | |
| 2824 | |
| 2825 return NGX_CONF_OK; | |
| 2826 } | |
| 2827 | |
| 2828 | |
| 2829 static void * | |
| 2830 ngx_http_mp4_create_conf(ngx_conf_t *cf) | |
| 2831 { | |
| 2832 ngx_http_mp4_conf_t *conf; | |
| 2833 | |
| 2834 conf = ngx_palloc(cf->pool, sizeof(ngx_http_mp4_conf_t)); | |
| 2835 if (conf == NULL) { | |
| 2836 return NULL; | |
| 2837 } | |
| 2838 | |
| 2839 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
|
2840 conf->max_buffer_size = NGX_CONF_UNSET_SIZE; |
| 4085 | 2841 |
| 2842 return conf; | |
| 2843 } | |
| 2844 | |
| 2845 | |
| 2846 static char * | |
| 2847 ngx_http_mp4_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 2848 { | |
| 2849 ngx_http_mp4_conf_t *prev = parent; | |
| 2850 ngx_http_mp4_conf_t *conf = child; | |
| 2851 | |
| 2852 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
|
2853 ngx_conf_merge_size_value(conf->max_buffer_size, prev->max_buffer_size, |
| 4085 | 2854 10 * 1024 * 1024); |
| 2855 | |
| 2856 return NGX_CONF_OK; | |
| 2857 } |