Libav 0.7.1
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00001 /* 00002 * MOV, 3GP, MP4 muxer 00003 * Copyright (c) 2003 Thomas Raivio 00004 * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org> 00005 * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com> 00006 * 00007 * This file is part of Libav. 00008 * 00009 * Libav is free software; you can redistribute it and/or 00010 * modify it under the terms of the GNU Lesser General Public 00011 * License as published by the Free Software Foundation; either 00012 * version 2.1 of the License, or (at your option) any later version. 00013 * 00014 * Libav is distributed in the hope that it will be useful, 00015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00017 * Lesser General Public License for more details. 00018 * 00019 * You should have received a copy of the GNU Lesser General Public 00020 * License along with Libav; if not, write to the Free Software 00021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00022 */ 00023 00024 #include "movenc.h" 00025 #include "avformat.h" 00026 #include "avio_internal.h" 00027 #include "riff.h" 00028 #include "avio.h" 00029 #include "isom.h" 00030 #include "avc.h" 00031 #include "libavcodec/get_bits.h" 00032 #include "libavcodec/put_bits.h" 00033 #include "internal.h" 00034 #include "libavutil/avstring.h" 00035 #include "libavutil/opt.h" 00036 #include "libavutil/dict.h" 00037 #include "rtpenc.h" 00038 00039 #undef NDEBUG 00040 #include <assert.h> 00041 00042 static const AVOption options[] = { 00043 { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), FF_OPT_TYPE_FLAGS, {.dbl = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, 00044 { "rtphint", "Add RTP hint tracks", 0, FF_OPT_TYPE_CONST, {.dbl = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, 00045 FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags), 00046 { NULL }, 00047 }; 00048 00049 static const AVClass mov_muxer_class = { 00050 .class_name = "MOV/3GP/MP4/3G2 muxer", 00051 .item_name = av_default_item_name, 00052 .option = options, 00053 .version = LIBAVUTIL_VERSION_INT, 00054 }; 00055 00056 //FIXME support 64 bit variant with wide placeholders 00057 static int64_t updateSize(AVIOContext *pb, int64_t pos) 00058 { 00059 int64_t curpos = avio_tell(pb); 00060 avio_seek(pb, pos, SEEK_SET); 00061 avio_wb32(pb, curpos - pos); /* rewrite size */ 00062 avio_seek(pb, curpos, SEEK_SET); 00063 00064 return curpos - pos; 00065 } 00066 00067 /* Chunk offset atom */ 00068 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track) 00069 { 00070 int i; 00071 int mode64 = 0; // use 32 bit size variant if possible 00072 int64_t pos = avio_tell(pb); 00073 avio_wb32(pb, 0); /* size */ 00074 if (pos > UINT32_MAX) { 00075 mode64 = 1; 00076 ffio_wfourcc(pb, "co64"); 00077 } else 00078 ffio_wfourcc(pb, "stco"); 00079 avio_wb32(pb, 0); /* version & flags */ 00080 avio_wb32(pb, track->entry); /* entry count */ 00081 for (i=0; i<track->entry; i++) { 00082 if(mode64 == 1) 00083 avio_wb64(pb, track->cluster[i].pos); 00084 else 00085 avio_wb32(pb, track->cluster[i].pos); 00086 } 00087 return updateSize(pb, pos); 00088 } 00089 00090 /* Sample size atom */ 00091 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track) 00092 { 00093 int equalChunks = 1; 00094 int i, j, entries = 0, tst = -1, oldtst = -1; 00095 00096 int64_t pos = avio_tell(pb); 00097 avio_wb32(pb, 0); /* size */ 00098 ffio_wfourcc(pb, "stsz"); 00099 avio_wb32(pb, 0); /* version & flags */ 00100 00101 for (i=0; i<track->entry; i++) { 00102 tst = track->cluster[i].size/track->cluster[i].entries; 00103 if(oldtst != -1 && tst != oldtst) { 00104 equalChunks = 0; 00105 } 00106 oldtst = tst; 00107 entries += track->cluster[i].entries; 00108 } 00109 if (equalChunks) { 00110 int sSize = track->cluster[0].size/track->cluster[0].entries; 00111 sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0 00112 avio_wb32(pb, sSize); // sample size 00113 avio_wb32(pb, entries); // sample count 00114 } 00115 else { 00116 avio_wb32(pb, 0); // sample size 00117 avio_wb32(pb, entries); // sample count 00118 for (i=0; i<track->entry; i++) { 00119 for (j=0; j<track->cluster[i].entries; j++) { 00120 avio_wb32(pb, track->cluster[i].size / 00121 track->cluster[i].entries); 00122 } 00123 } 00124 } 00125 return updateSize(pb, pos); 00126 } 00127 00128 /* Sample to chunk atom */ 00129 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track) 00130 { 00131 int index = 0, oldval = -1, i; 00132 int64_t entryPos, curpos; 00133 00134 int64_t pos = avio_tell(pb); 00135 avio_wb32(pb, 0); /* size */ 00136 ffio_wfourcc(pb, "stsc"); 00137 avio_wb32(pb, 0); // version & flags 00138 entryPos = avio_tell(pb); 00139 avio_wb32(pb, track->entry); // entry count 00140 for (i=0; i<track->entry; i++) { 00141 if(oldval != track->cluster[i].samplesInChunk) 00142 { 00143 avio_wb32(pb, i+1); // first chunk 00144 avio_wb32(pb, track->cluster[i].samplesInChunk); // samples per chunk 00145 avio_wb32(pb, 0x1); // sample description index 00146 oldval = track->cluster[i].samplesInChunk; 00147 index++; 00148 } 00149 } 00150 curpos = avio_tell(pb); 00151 avio_seek(pb, entryPos, SEEK_SET); 00152 avio_wb32(pb, index); // rewrite size 00153 avio_seek(pb, curpos, SEEK_SET); 00154 00155 return updateSize(pb, pos); 00156 } 00157 00158 /* Sync sample atom */ 00159 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag) 00160 { 00161 int64_t curpos, entryPos; 00162 int i, index = 0; 00163 int64_t pos = avio_tell(pb); 00164 avio_wb32(pb, 0); // size 00165 ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps"); 00166 avio_wb32(pb, 0); // version & flags 00167 entryPos = avio_tell(pb); 00168 avio_wb32(pb, track->entry); // entry count 00169 for (i=0; i<track->entry; i++) { 00170 if (track->cluster[i].flags & flag) { 00171 avio_wb32(pb, i+1); 00172 index++; 00173 } 00174 } 00175 curpos = avio_tell(pb); 00176 avio_seek(pb, entryPos, SEEK_SET); 00177 avio_wb32(pb, index); // rewrite size 00178 avio_seek(pb, curpos, SEEK_SET); 00179 return updateSize(pb, pos); 00180 } 00181 00182 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track) 00183 { 00184 avio_wb32(pb, 0x11); /* size */ 00185 if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr"); 00186 else ffio_wfourcc(pb, "damr"); 00187 ffio_wfourcc(pb, "FFMP"); 00188 avio_w8(pb, 0); /* decoder version */ 00189 00190 avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */ 00191 avio_w8(pb, 0x00); /* Mode change period (no restriction) */ 00192 avio_w8(pb, 0x01); /* Frames per sample */ 00193 return 0x11; 00194 } 00195 00196 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track) 00197 { 00198 GetBitContext gbc; 00199 PutBitContext pbc; 00200 uint8_t buf[3]; 00201 int fscod, bsid, bsmod, acmod, lfeon, frmsizecod; 00202 00203 if (track->vosLen < 7) 00204 return -1; 00205 00206 avio_wb32(pb, 11); 00207 ffio_wfourcc(pb, "dac3"); 00208 00209 init_get_bits(&gbc, track->vosData+4, (track->vosLen-4) * 8); 00210 fscod = get_bits(&gbc, 2); 00211 frmsizecod = get_bits(&gbc, 6); 00212 bsid = get_bits(&gbc, 5); 00213 bsmod = get_bits(&gbc, 3); 00214 acmod = get_bits(&gbc, 3); 00215 if (acmod == 2) { 00216 skip_bits(&gbc, 2); // dsurmod 00217 } else { 00218 if ((acmod & 1) && acmod != 1) 00219 skip_bits(&gbc, 2); // cmixlev 00220 if (acmod & 4) 00221 skip_bits(&gbc, 2); // surmixlev 00222 } 00223 lfeon = get_bits1(&gbc); 00224 00225 init_put_bits(&pbc, buf, sizeof(buf)); 00226 put_bits(&pbc, 2, fscod); 00227 put_bits(&pbc, 5, bsid); 00228 put_bits(&pbc, 3, bsmod); 00229 put_bits(&pbc, 3, acmod); 00230 put_bits(&pbc, 1, lfeon); 00231 put_bits(&pbc, 5, frmsizecod>>1); // bit_rate_code 00232 put_bits(&pbc, 5, 0); // reserved 00233 00234 flush_put_bits(&pbc); 00235 avio_write(pb, buf, sizeof(buf)); 00236 00237 return 11; 00238 } 00239 00244 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track) 00245 { 00246 avio_write(pb, track->enc->extradata, track->enc->extradata_size); 00247 return track->enc->extradata_size; 00248 } 00249 00250 static int mov_write_enda_tag(AVIOContext *pb) 00251 { 00252 avio_wb32(pb, 10); 00253 ffio_wfourcc(pb, "enda"); 00254 avio_wb16(pb, 1); /* little endian */ 00255 return 10; 00256 } 00257 00258 static void putDescr(AVIOContext *pb, int tag, unsigned int size) 00259 { 00260 int i = 3; 00261 avio_w8(pb, tag); 00262 for(; i>0; i--) 00263 avio_w8(pb, (size>>(7*i)) | 0x80); 00264 avio_w8(pb, size & 0x7F); 00265 } 00266 00267 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic 00268 { 00269 int64_t pos = avio_tell(pb); 00270 int decoderSpecificInfoLen = track->vosLen ? 5+track->vosLen : 0; 00271 00272 avio_wb32(pb, 0); // size 00273 ffio_wfourcc(pb, "esds"); 00274 avio_wb32(pb, 0); // Version 00275 00276 // ES descriptor 00277 putDescr(pb, 0x03, 3 + 5+13 + decoderSpecificInfoLen + 5+1); 00278 avio_wb16(pb, track->trackID); 00279 avio_w8(pb, 0x00); // flags (= no flags) 00280 00281 // DecoderConfig descriptor 00282 putDescr(pb, 0x04, 13 + decoderSpecificInfoLen); 00283 00284 // Object type indication 00285 if ((track->enc->codec_id == CODEC_ID_MP2 || 00286 track->enc->codec_id == CODEC_ID_MP3) && 00287 track->enc->sample_rate > 24000) 00288 avio_w8(pb, 0x6B); // 11172-3 00289 else 00290 avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id)); 00291 00292 // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio) 00293 // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved) 00294 if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO) 00295 avio_w8(pb, 0x15); // flags (= Audiostream) 00296 else 00297 avio_w8(pb, 0x11); // flags (= Visualstream) 00298 00299 avio_w8(pb, track->enc->rc_buffer_size>>(3+16)); // Buffersize DB (24 bits) 00300 avio_wb16(pb, (track->enc->rc_buffer_size>>3)&0xFFFF); // Buffersize DB 00301 00302 avio_wb32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window) 00303 if(track->enc->rc_max_rate != track->enc->rc_min_rate || track->enc->rc_min_rate==0) 00304 avio_wb32(pb, 0); // vbr 00305 else 00306 avio_wb32(pb, track->enc->rc_max_rate); // avg bitrate 00307 00308 if (track->vosLen) { 00309 // DecoderSpecific info descriptor 00310 putDescr(pb, 0x05, track->vosLen); 00311 avio_write(pb, track->vosData, track->vosLen); 00312 } 00313 00314 // SL descriptor 00315 putDescr(pb, 0x06, 1); 00316 avio_w8(pb, 0x02); 00317 return updateSize(pb, pos); 00318 } 00319 00320 static int mov_pcm_le_gt16(enum CodecID codec_id) 00321 { 00322 return codec_id == CODEC_ID_PCM_S24LE || 00323 codec_id == CODEC_ID_PCM_S32LE || 00324 codec_id == CODEC_ID_PCM_F32LE || 00325 codec_id == CODEC_ID_PCM_F64LE; 00326 } 00327 00328 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track) 00329 { 00330 int64_t pos = avio_tell(pb); 00331 avio_wb32(pb, 0); 00332 avio_wl32(pb, track->tag); // store it byteswapped 00333 track->enc->codec_tag = av_bswap16(track->tag >> 16); 00334 ff_put_wav_header(pb, track->enc); 00335 return updateSize(pb, pos); 00336 } 00337 00338 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track) 00339 { 00340 int64_t pos = avio_tell(pb); 00341 00342 avio_wb32(pb, 0); /* size */ 00343 ffio_wfourcc(pb, "wave"); 00344 00345 avio_wb32(pb, 12); /* size */ 00346 ffio_wfourcc(pb, "frma"); 00347 avio_wl32(pb, track->tag); 00348 00349 if (track->enc->codec_id == CODEC_ID_AAC) { 00350 /* useless atom needed by mplayer, ipod, not needed by quicktime */ 00351 avio_wb32(pb, 12); /* size */ 00352 ffio_wfourcc(pb, "mp4a"); 00353 avio_wb32(pb, 0); 00354 mov_write_esds_tag(pb, track); 00355 } else if (mov_pcm_le_gt16(track->enc->codec_id)) { 00356 mov_write_enda_tag(pb); 00357 } else if (track->enc->codec_id == CODEC_ID_AMR_NB) { 00358 mov_write_amr_tag(pb, track); 00359 } else if (track->enc->codec_id == CODEC_ID_AC3) { 00360 mov_write_ac3_tag(pb, track); 00361 } else if (track->enc->codec_id == CODEC_ID_ALAC) { 00362 mov_write_extradata_tag(pb, track); 00363 } else if (track->enc->codec_id == CODEC_ID_ADPCM_MS || 00364 track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) { 00365 mov_write_ms_tag(pb, track); 00366 } 00367 00368 avio_wb32(pb, 8); /* size */ 00369 avio_wb32(pb, 0); /* null tag */ 00370 00371 return updateSize(pb, pos); 00372 } 00373 00374 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track) 00375 { 00376 avio_wb32(pb, track->vosLen+8); 00377 ffio_wfourcc(pb, "glbl"); 00378 avio_write(pb, track->vosData, track->vosLen); 00379 return 8+track->vosLen; 00380 } 00381 00386 static int mov_get_lpcm_flags(enum CodecID codec_id) 00387 { 00388 switch (codec_id) { 00389 case CODEC_ID_PCM_F32BE: 00390 case CODEC_ID_PCM_F64BE: 00391 return 11; 00392 case CODEC_ID_PCM_F32LE: 00393 case CODEC_ID_PCM_F64LE: 00394 return 9; 00395 case CODEC_ID_PCM_U8: 00396 return 10; 00397 case CODEC_ID_PCM_S16BE: 00398 case CODEC_ID_PCM_S24BE: 00399 case CODEC_ID_PCM_S32BE: 00400 return 14; 00401 case CODEC_ID_PCM_S8: 00402 case CODEC_ID_PCM_S16LE: 00403 case CODEC_ID_PCM_S24LE: 00404 case CODEC_ID_PCM_S32LE: 00405 return 12; 00406 default: 00407 return 0; 00408 } 00409 } 00410 00411 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track) 00412 { 00413 int64_t pos = avio_tell(pb); 00414 int version = 0; 00415 uint32_t tag = track->tag; 00416 00417 if (track->mode == MODE_MOV) { 00418 if (track->timescale > UINT16_MAX) { 00419 if (mov_get_lpcm_flags(track->enc->codec_id)) 00420 tag = AV_RL32("lpcm"); 00421 version = 2; 00422 } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) || 00423 track->enc->codec_id == CODEC_ID_ADPCM_MS || 00424 track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) { 00425 version = 1; 00426 } 00427 } 00428 00429 avio_wb32(pb, 0); /* size */ 00430 avio_wl32(pb, tag); // store it byteswapped 00431 avio_wb32(pb, 0); /* Reserved */ 00432 avio_wb16(pb, 0); /* Reserved */ 00433 avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */ 00434 00435 /* SoundDescription */ 00436 avio_wb16(pb, version); /* Version */ 00437 avio_wb16(pb, 0); /* Revision level */ 00438 avio_wb32(pb, 0); /* Reserved */ 00439 00440 if (version == 2) { 00441 avio_wb16(pb, 3); 00442 avio_wb16(pb, 16); 00443 avio_wb16(pb, 0xfffe); 00444 avio_wb16(pb, 0); 00445 avio_wb32(pb, 0x00010000); 00446 avio_wb32(pb, 72); 00447 avio_wb64(pb, av_dbl2int(track->timescale)); 00448 avio_wb32(pb, track->enc->channels); 00449 avio_wb32(pb, 0x7F000000); 00450 avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id)); 00451 avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id)); 00452 avio_wb32(pb, track->sampleSize); 00453 avio_wb32(pb, track->enc->frame_size); 00454 } else { 00455 if (track->mode == MODE_MOV) { 00456 avio_wb16(pb, track->enc->channels); 00457 if (track->enc->codec_id == CODEC_ID_PCM_U8 || 00458 track->enc->codec_id == CODEC_ID_PCM_S8) 00459 avio_wb16(pb, 8); /* bits per sample */ 00460 else 00461 avio_wb16(pb, 16); 00462 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */ 00463 } else { /* reserved for mp4/3gp */ 00464 avio_wb16(pb, 2); 00465 avio_wb16(pb, 16); 00466 avio_wb16(pb, 0); 00467 } 00468 00469 avio_wb16(pb, 0); /* packet size (= 0) */ 00470 avio_wb16(pb, track->timescale); /* Time scale */ 00471 avio_wb16(pb, 0); /* Reserved */ 00472 } 00473 00474 if(version == 1) { /* SoundDescription V1 extended info */ 00475 avio_wb32(pb, track->enc->frame_size); /* Samples per packet */ 00476 avio_wb32(pb, track->sampleSize / track->enc->channels); /* Bytes per packet */ 00477 avio_wb32(pb, track->sampleSize); /* Bytes per frame */ 00478 avio_wb32(pb, 2); /* Bytes per sample */ 00479 } 00480 00481 if(track->mode == MODE_MOV && 00482 (track->enc->codec_id == CODEC_ID_AAC || 00483 track->enc->codec_id == CODEC_ID_AC3 || 00484 track->enc->codec_id == CODEC_ID_AMR_NB || 00485 track->enc->codec_id == CODEC_ID_ALAC || 00486 track->enc->codec_id == CODEC_ID_ADPCM_MS || 00487 track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV || 00488 mov_pcm_le_gt16(track->enc->codec_id))) 00489 mov_write_wave_tag(pb, track); 00490 else if(track->tag == MKTAG('m','p','4','a')) 00491 mov_write_esds_tag(pb, track); 00492 else if(track->enc->codec_id == CODEC_ID_AMR_NB) 00493 mov_write_amr_tag(pb, track); 00494 else if(track->enc->codec_id == CODEC_ID_AC3) 00495 mov_write_ac3_tag(pb, track); 00496 else if(track->enc->codec_id == CODEC_ID_ALAC) 00497 mov_write_extradata_tag(pb, track); 00498 else if(track->vosLen > 0) 00499 mov_write_glbl_tag(pb, track); 00500 00501 return updateSize(pb, pos); 00502 } 00503 00504 static int mov_write_d263_tag(AVIOContext *pb) 00505 { 00506 avio_wb32(pb, 0xf); /* size */ 00507 ffio_wfourcc(pb, "d263"); 00508 ffio_wfourcc(pb, "FFMP"); 00509 avio_w8(pb, 0); /* decoder version */ 00510 /* FIXME use AVCodecContext level/profile, when encoder will set values */ 00511 avio_w8(pb, 0xa); /* level */ 00512 avio_w8(pb, 0); /* profile */ 00513 return 0xf; 00514 } 00515 00516 /* TODO: No idea about these values */ 00517 static int mov_write_svq3_tag(AVIOContext *pb) 00518 { 00519 avio_wb32(pb, 0x15); 00520 ffio_wfourcc(pb, "SMI "); 00521 ffio_wfourcc(pb, "SEQH"); 00522 avio_wb32(pb, 0x5); 00523 avio_wb32(pb, 0xe2c0211d); 00524 avio_wb32(pb, 0xc0000000); 00525 avio_w8(pb, 0); 00526 return 0x15; 00527 } 00528 00529 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track) 00530 { 00531 int64_t pos = avio_tell(pb); 00532 00533 avio_wb32(pb, 0); 00534 ffio_wfourcc(pb, "avcC"); 00535 ff_isom_write_avcc(pb, track->vosData, track->vosLen); 00536 return updateSize(pb, pos); 00537 } 00538 00539 /* also used by all avid codecs (dv, imx, meridien) and their variants */ 00540 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track) 00541 { 00542 int i; 00543 avio_wb32(pb, 24); /* size */ 00544 ffio_wfourcc(pb, "ACLR"); 00545 ffio_wfourcc(pb, "ACLR"); 00546 ffio_wfourcc(pb, "0001"); 00547 avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */ 00548 avio_wb32(pb, 0); /* unknown */ 00549 00550 avio_wb32(pb, 24); /* size */ 00551 ffio_wfourcc(pb, "APRG"); 00552 ffio_wfourcc(pb, "APRG"); 00553 ffio_wfourcc(pb, "0001"); 00554 avio_wb32(pb, 1); /* unknown */ 00555 avio_wb32(pb, 0); /* unknown */ 00556 00557 avio_wb32(pb, 120); /* size */ 00558 ffio_wfourcc(pb, "ARES"); 00559 ffio_wfourcc(pb, "ARES"); 00560 ffio_wfourcc(pb, "0001"); 00561 avio_wb32(pb, AV_RB32(track->vosData + 0x28)); /* dnxhd cid, some id ? */ 00562 avio_wb32(pb, track->enc->width); 00563 /* values below are based on samples created with quicktime and avid codecs */ 00564 if (track->vosData[5] & 2) { // interlaced 00565 avio_wb32(pb, track->enc->height/2); 00566 avio_wb32(pb, 2); /* unknown */ 00567 avio_wb32(pb, 0); /* unknown */ 00568 avio_wb32(pb, 4); /* unknown */ 00569 } else { 00570 avio_wb32(pb, track->enc->height); 00571 avio_wb32(pb, 1); /* unknown */ 00572 avio_wb32(pb, 0); /* unknown */ 00573 if (track->enc->height == 1080) 00574 avio_wb32(pb, 5); /* unknown */ 00575 else 00576 avio_wb32(pb, 6); /* unknown */ 00577 } 00578 /* padding */ 00579 for (i = 0; i < 10; i++) 00580 avio_wb64(pb, 0); 00581 00582 /* extra padding for stsd needed */ 00583 avio_wb32(pb, 0); 00584 return 0; 00585 } 00586 00587 static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track) 00588 { 00589 int tag = track->enc->codec_tag; 00590 00591 if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id)) 00592 return 0; 00593 00594 if (track->enc->codec_id == CODEC_ID_H264) tag = MKTAG('a','v','c','1'); 00595 else if (track->enc->codec_id == CODEC_ID_AC3) tag = MKTAG('a','c','-','3'); 00596 else if (track->enc->codec_id == CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c'); 00597 else if (track->enc->codec_id == CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g'); 00598 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v'); 00599 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a'); 00600 00601 return tag; 00602 } 00603 00604 static const AVCodecTag codec_ipod_tags[] = { 00605 { CODEC_ID_H264, MKTAG('a','v','c','1') }, 00606 { CODEC_ID_MPEG4, MKTAG('m','p','4','v') }, 00607 { CODEC_ID_AAC, MKTAG('m','p','4','a') }, 00608 { CODEC_ID_ALAC, MKTAG('a','l','a','c') }, 00609 { CODEC_ID_AC3, MKTAG('a','c','-','3') }, 00610 { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') }, 00611 { CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') }, 00612 { CODEC_ID_NONE, 0 }, 00613 }; 00614 00615 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track) 00616 { 00617 int tag = track->enc->codec_tag; 00618 00619 // keep original tag for subs, ipod supports both formats 00620 if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE && 00621 (tag == MKTAG('t','x','3','g') || 00622 tag == MKTAG('t','e','x','t')))) 00623 tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id); 00624 00625 if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v")) 00626 av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v " 00627 "Quicktime/Ipod might not play the file\n"); 00628 00629 return tag; 00630 } 00631 00632 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track) 00633 { 00634 int tag; 00635 00636 if (track->enc->width == 720) /* SD */ 00637 if (track->enc->height == 480) /* NTSC */ 00638 if (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n'); 00639 else tag = MKTAG('d','v','c',' '); 00640 else if (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p'); 00641 else if (track->enc->pix_fmt == PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p'); 00642 else tag = MKTAG('d','v','p','p'); 00643 else if (track->enc->height == 720) /* HD 720 line */ 00644 if (track->enc->time_base.den == 50) tag = MKTAG('d','v','h','q'); 00645 else tag = MKTAG('d','v','h','p'); 00646 else if (track->enc->height == 1080) /* HD 1080 line */ 00647 if (track->enc->time_base.den == 25) tag = MKTAG('d','v','h','5'); 00648 else tag = MKTAG('d','v','h','6'); 00649 else { 00650 av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n"); 00651 return 0; 00652 } 00653 00654 return tag; 00655 } 00656 00657 static const struct { 00658 enum PixelFormat pix_fmt; 00659 uint32_t tag; 00660 unsigned bps; 00661 } mov_pix_fmt_tags[] = { 00662 { PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 }, 00663 { PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 }, 00664 { PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 }, 00665 { PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 }, 00666 { PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 }, 00667 { PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 }, 00668 { PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 }, 00669 { PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 }, 00670 { PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 }, 00671 { PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 }, 00672 { PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 }, 00673 { PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 }, 00674 { PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 }, 00675 { PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 }, 00676 }; 00677 00678 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track) 00679 { 00680 int tag = track->enc->codec_tag; 00681 int i; 00682 00683 for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) { 00684 if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) { 00685 tag = mov_pix_fmt_tags[i].tag; 00686 track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps; 00687 break; 00688 } 00689 } 00690 00691 return tag; 00692 } 00693 00694 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track) 00695 { 00696 int tag = track->enc->codec_tag; 00697 00698 if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL && 00699 (track->enc->codec_id == CODEC_ID_DVVIDEO || 00700 track->enc->codec_id == CODEC_ID_RAWVIDEO || 00701 track->enc->codec_id == CODEC_ID_H263 || 00702 av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio 00703 if (track->enc->codec_id == CODEC_ID_DVVIDEO) 00704 tag = mov_get_dv_codec_tag(s, track); 00705 else if (track->enc->codec_id == CODEC_ID_RAWVIDEO) 00706 tag = mov_get_rawvideo_codec_tag(s, track); 00707 else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) { 00708 tag = ff_codec_get_tag(codec_movvideo_tags, track->enc->codec_id); 00709 if (!tag) { // if no mac fcc found, try with Microsoft tags 00710 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id); 00711 if (tag) 00712 av_log(s, AV_LOG_INFO, "Warning, using MS style video codec tag, " 00713 "the file may be unplayable!\n"); 00714 } 00715 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) { 00716 tag = ff_codec_get_tag(codec_movaudio_tags, track->enc->codec_id); 00717 if (!tag) { // if no mac fcc found, try with Microsoft tags 00718 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id); 00719 if (ms_tag) { 00720 tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff)); 00721 av_log(s, AV_LOG_INFO, "Warning, using MS style audio codec tag, " 00722 "the file may be unplayable!\n"); 00723 } 00724 } 00725 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) 00726 tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id); 00727 } 00728 00729 return tag; 00730 } 00731 00732 static const AVCodecTag codec_3gp_tags[] = { 00733 { CODEC_ID_H263, MKTAG('s','2','6','3') }, 00734 { CODEC_ID_H264, MKTAG('a','v','c','1') }, 00735 { CODEC_ID_MPEG4, MKTAG('m','p','4','v') }, 00736 { CODEC_ID_AAC, MKTAG('m','p','4','a') }, 00737 { CODEC_ID_AMR_NB, MKTAG('s','a','m','r') }, 00738 { CODEC_ID_AMR_WB, MKTAG('s','a','w','b') }, 00739 { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') }, 00740 { CODEC_ID_NONE, 0 }, 00741 }; 00742 00743 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track) 00744 { 00745 int tag = track->enc->codec_tag; 00746 00747 if (track->mode == MODE_MP4 || track->mode == MODE_PSP) 00748 tag = mp4_get_codec_tag(s, track); 00749 else if (track->mode == MODE_IPOD) 00750 tag = ipod_get_codec_tag(s, track); 00751 else if (track->mode & MODE_3GP) 00752 tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id); 00753 else 00754 tag = mov_get_codec_tag(s, track); 00755 00756 return tag; 00757 } 00758 00763 static int mov_write_uuid_tag_ipod(AVIOContext *pb) 00764 { 00765 avio_wb32(pb, 28); 00766 ffio_wfourcc(pb, "uuid"); 00767 avio_wb32(pb, 0x6b6840f2); 00768 avio_wb32(pb, 0x5f244fc5); 00769 avio_wb32(pb, 0xba39a51b); 00770 avio_wb32(pb, 0xcf0323f3); 00771 avio_wb32(pb, 0x0); 00772 return 28; 00773 } 00774 00775 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track) 00776 { 00777 int64_t pos = avio_tell(pb); 00778 avio_wb32(pb, 0); /* size */ 00779 avio_wl32(pb, track->tag); // store it byteswapped 00780 avio_wb32(pb, 0); /* Reserved */ 00781 avio_wb16(pb, 0); /* Reserved */ 00782 avio_wb16(pb, 1); /* Data-reference index */ 00783 00784 if (track->enc->extradata_size) 00785 avio_write(pb, track->enc->extradata, track->enc->extradata_size); 00786 00787 return updateSize(pb, pos); 00788 } 00789 00790 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track) 00791 { 00792 AVRational sar; 00793 av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num, 00794 track->enc->sample_aspect_ratio.den, INT_MAX); 00795 00796 avio_wb32(pb, 16); 00797 ffio_wfourcc(pb, "pasp"); 00798 avio_wb32(pb, sar.num); 00799 avio_wb32(pb, sar.den); 00800 return 16; 00801 } 00802 00803 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track) 00804 { 00805 int64_t pos = avio_tell(pb); 00806 char compressor_name[32]; 00807 00808 avio_wb32(pb, 0); /* size */ 00809 avio_wl32(pb, track->tag); // store it byteswapped 00810 avio_wb32(pb, 0); /* Reserved */ 00811 avio_wb16(pb, 0); /* Reserved */ 00812 avio_wb16(pb, 1); /* Data-reference index */ 00813 00814 avio_wb16(pb, 0); /* Codec stream version */ 00815 avio_wb16(pb, 0); /* Codec stream revision (=0) */ 00816 if (track->mode == MODE_MOV) { 00817 ffio_wfourcc(pb, "FFMP"); /* Vendor */ 00818 if(track->enc->codec_id == CODEC_ID_RAWVIDEO) { 00819 avio_wb32(pb, 0); /* Temporal Quality */ 00820 avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/ 00821 } else { 00822 avio_wb32(pb, 0x200); /* Temporal Quality = normal */ 00823 avio_wb32(pb, 0x200); /* Spatial Quality = normal */ 00824 } 00825 } else { 00826 avio_wb32(pb, 0); /* Reserved */ 00827 avio_wb32(pb, 0); /* Reserved */ 00828 avio_wb32(pb, 0); /* Reserved */ 00829 } 00830 avio_wb16(pb, track->enc->width); /* Video width */ 00831 avio_wb16(pb, track->height); /* Video height */ 00832 avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */ 00833 avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */ 00834 avio_wb32(pb, 0); /* Data size (= 0) */ 00835 avio_wb16(pb, 1); /* Frame count (= 1) */ 00836 00837 memset(compressor_name,0,32); 00838 /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */ 00839 if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name) 00840 av_strlcpy(compressor_name,track->enc->codec->name,32); 00841 avio_w8(pb, strlen(compressor_name)); 00842 avio_write(pb, compressor_name, 31); 00843 00844 if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample) 00845 avio_wb16(pb, track->enc->bits_per_coded_sample); 00846 else 00847 avio_wb16(pb, 0x18); /* Reserved */ 00848 avio_wb16(pb, 0xffff); /* Reserved */ 00849 if(track->tag == MKTAG('m','p','4','v')) 00850 mov_write_esds_tag(pb, track); 00851 else if(track->enc->codec_id == CODEC_ID_H263) 00852 mov_write_d263_tag(pb); 00853 else if(track->enc->codec_id == CODEC_ID_SVQ3) 00854 mov_write_svq3_tag(pb); 00855 else if(track->enc->codec_id == CODEC_ID_DNXHD) 00856 mov_write_avid_tag(pb, track); 00857 else if(track->enc->codec_id == CODEC_ID_H264) { 00858 mov_write_avcc_tag(pb, track); 00859 if(track->mode == MODE_IPOD) 00860 mov_write_uuid_tag_ipod(pb); 00861 } else if(track->vosLen > 0) 00862 mov_write_glbl_tag(pb, track); 00863 00864 if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num && 00865 track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) { 00866 mov_write_pasp_tag(pb, track); 00867 } 00868 00869 return updateSize(pb, pos); 00870 } 00871 00872 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track) 00873 { 00874 int64_t pos = avio_tell(pb); 00875 avio_wb32(pb, 0); /* size */ 00876 ffio_wfourcc(pb, "rtp "); 00877 avio_wb32(pb, 0); /* Reserved */ 00878 avio_wb16(pb, 0); /* Reserved */ 00879 avio_wb16(pb, 1); /* Data-reference index */ 00880 00881 avio_wb16(pb, 1); /* Hint track version */ 00882 avio_wb16(pb, 1); /* Highest compatible version */ 00883 avio_wb32(pb, track->max_packet_size); /* Max packet size */ 00884 00885 avio_wb32(pb, 12); /* size */ 00886 ffio_wfourcc(pb, "tims"); 00887 avio_wb32(pb, track->timescale); 00888 00889 return updateSize(pb, pos); 00890 } 00891 00892 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track) 00893 { 00894 int64_t pos = avio_tell(pb); 00895 avio_wb32(pb, 0); /* size */ 00896 ffio_wfourcc(pb, "stsd"); 00897 avio_wb32(pb, 0); /* version & flags */ 00898 avio_wb32(pb, 1); /* entry count */ 00899 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) 00900 mov_write_video_tag(pb, track); 00901 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) 00902 mov_write_audio_tag(pb, track); 00903 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) 00904 mov_write_subtitle_tag(pb, track); 00905 else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) 00906 mov_write_rtp_tag(pb, track); 00907 return updateSize(pb, pos); 00908 } 00909 00910 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track) 00911 { 00912 MOVStts *ctts_entries; 00913 uint32_t entries = 0; 00914 uint32_t atom_size; 00915 int i; 00916 00917 ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */ 00918 ctts_entries[0].count = 1; 00919 ctts_entries[0].duration = track->cluster[0].cts; 00920 for (i=1; i<track->entry; i++) { 00921 if (track->cluster[i].cts == ctts_entries[entries].duration) { 00922 ctts_entries[entries].count++; /* compress */ 00923 } else { 00924 entries++; 00925 ctts_entries[entries].duration = track->cluster[i].cts; 00926 ctts_entries[entries].count = 1; 00927 } 00928 } 00929 entries++; /* last one */ 00930 atom_size = 16 + (entries * 8); 00931 avio_wb32(pb, atom_size); /* size */ 00932 ffio_wfourcc(pb, "ctts"); 00933 avio_wb32(pb, 0); /* version & flags */ 00934 avio_wb32(pb, entries); /* entry count */ 00935 for (i=0; i<entries; i++) { 00936 avio_wb32(pb, ctts_entries[i].count); 00937 avio_wb32(pb, ctts_entries[i].duration); 00938 } 00939 av_free(ctts_entries); 00940 return atom_size; 00941 } 00942 00943 /* Time to sample atom */ 00944 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track) 00945 { 00946 MOVStts *stts_entries; 00947 uint32_t entries = -1; 00948 uint32_t atom_size; 00949 int i; 00950 00951 if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) { 00952 stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */ 00953 stts_entries[0].count = track->sampleCount; 00954 stts_entries[0].duration = 1; 00955 entries = 1; 00956 } else { 00957 stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */ 00958 for (i=0; i<track->entry; i++) { 00959 int64_t duration = i + 1 == track->entry ? 00960 track->trackDuration - track->cluster[i].dts + track->cluster[0].dts : /* readjusting */ 00961 track->cluster[i+1].dts - track->cluster[i].dts; 00962 if (i && duration == stts_entries[entries].duration) { 00963 stts_entries[entries].count++; /* compress */ 00964 } else { 00965 entries++; 00966 stts_entries[entries].duration = duration; 00967 stts_entries[entries].count = 1; 00968 } 00969 } 00970 entries++; /* last one */ 00971 } 00972 atom_size = 16 + (entries * 8); 00973 avio_wb32(pb, atom_size); /* size */ 00974 ffio_wfourcc(pb, "stts"); 00975 avio_wb32(pb, 0); /* version & flags */ 00976 avio_wb32(pb, entries); /* entry count */ 00977 for (i=0; i<entries; i++) { 00978 avio_wb32(pb, stts_entries[i].count); 00979 avio_wb32(pb, stts_entries[i].duration); 00980 } 00981 av_free(stts_entries); 00982 return atom_size; 00983 } 00984 00985 static int mov_write_dref_tag(AVIOContext *pb) 00986 { 00987 avio_wb32(pb, 28); /* size */ 00988 ffio_wfourcc(pb, "dref"); 00989 avio_wb32(pb, 0); /* version & flags */ 00990 avio_wb32(pb, 1); /* entry count */ 00991 00992 avio_wb32(pb, 0xc); /* size */ 00993 ffio_wfourcc(pb, "url "); 00994 avio_wb32(pb, 1); /* version & flags */ 00995 00996 return 28; 00997 } 00998 00999 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track) 01000 { 01001 int64_t pos = avio_tell(pb); 01002 avio_wb32(pb, 0); /* size */ 01003 ffio_wfourcc(pb, "stbl"); 01004 mov_write_stsd_tag(pb, track); 01005 mov_write_stts_tag(pb, track); 01006 if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO || 01007 track->enc->codec_tag == MKTAG('r','t','p',' ')) && 01008 track->hasKeyframes && track->hasKeyframes < track->entry) 01009 mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE); 01010 if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS) 01011 mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE); 01012 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && 01013 track->flags & MOV_TRACK_CTTS) 01014 mov_write_ctts_tag(pb, track); 01015 mov_write_stsc_tag(pb, track); 01016 mov_write_stsz_tag(pb, track); 01017 mov_write_stco_tag(pb, track); 01018 return updateSize(pb, pos); 01019 } 01020 01021 static int mov_write_dinf_tag(AVIOContext *pb) 01022 { 01023 int64_t pos = avio_tell(pb); 01024 avio_wb32(pb, 0); /* size */ 01025 ffio_wfourcc(pb, "dinf"); 01026 mov_write_dref_tag(pb); 01027 return updateSize(pb, pos); 01028 } 01029 01030 static int mov_write_nmhd_tag(AVIOContext *pb) 01031 { 01032 avio_wb32(pb, 12); 01033 ffio_wfourcc(pb, "nmhd"); 01034 avio_wb32(pb, 0); 01035 return 12; 01036 } 01037 01038 static int mov_write_gmhd_tag(AVIOContext *pb) 01039 { 01040 avio_wb32(pb, 0x20); /* size */ 01041 ffio_wfourcc(pb, "gmhd"); 01042 avio_wb32(pb, 0x18); /* gmin size */ 01043 ffio_wfourcc(pb, "gmin");/* generic media info */ 01044 avio_wb32(pb, 0); /* version & flags */ 01045 avio_wb16(pb, 0x40); /* graphics mode = */ 01046 avio_wb16(pb, 0x8000); /* opColor (r?) */ 01047 avio_wb16(pb, 0x8000); /* opColor (g?) */ 01048 avio_wb16(pb, 0x8000); /* opColor (b?) */ 01049 avio_wb16(pb, 0); /* balance */ 01050 avio_wb16(pb, 0); /* reserved */ 01051 return 0x20; 01052 } 01053 01054 static int mov_write_smhd_tag(AVIOContext *pb) 01055 { 01056 avio_wb32(pb, 16); /* size */ 01057 ffio_wfourcc(pb, "smhd"); 01058 avio_wb32(pb, 0); /* version & flags */ 01059 avio_wb16(pb, 0); /* reserved (balance, normally = 0) */ 01060 avio_wb16(pb, 0); /* reserved */ 01061 return 16; 01062 } 01063 01064 static int mov_write_vmhd_tag(AVIOContext *pb) 01065 { 01066 avio_wb32(pb, 0x14); /* size (always 0x14) */ 01067 ffio_wfourcc(pb, "vmhd"); 01068 avio_wb32(pb, 0x01); /* version & flags */ 01069 avio_wb64(pb, 0); /* reserved (graphics mode = copy) */ 01070 return 0x14; 01071 } 01072 01073 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track) 01074 { 01075 const char *hdlr, *descr = NULL, *hdlr_type = NULL; 01076 int64_t pos = avio_tell(pb); 01077 01078 if (!track) { /* no media --> data handler */ 01079 hdlr = "dhlr"; 01080 hdlr_type = "url "; 01081 descr = "DataHandler"; 01082 } else { 01083 hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0"; 01084 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) { 01085 hdlr_type = "vide"; 01086 descr = "VideoHandler"; 01087 } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) { 01088 hdlr_type = "soun"; 01089 descr = "SoundHandler"; 01090 } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) { 01091 if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl"; 01092 else hdlr_type = "text"; 01093 descr = "SubtitleHandler"; 01094 } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) { 01095 hdlr_type = "hint"; 01096 descr = "HintHandler"; 01097 } 01098 } 01099 01100 avio_wb32(pb, 0); /* size */ 01101 ffio_wfourcc(pb, "hdlr"); 01102 avio_wb32(pb, 0); /* Version & flags */ 01103 avio_write(pb, hdlr, 4); /* handler */ 01104 ffio_wfourcc(pb, hdlr_type); /* handler type */ 01105 avio_wb32(pb ,0); /* reserved */ 01106 avio_wb32(pb ,0); /* reserved */ 01107 avio_wb32(pb ,0); /* reserved */ 01108 if (!track || track->mode == MODE_MOV) 01109 avio_w8(pb, strlen(descr)); /* pascal string */ 01110 avio_write(pb, descr, strlen(descr)); /* handler description */ 01111 if (track && track->mode != MODE_MOV) 01112 avio_w8(pb, 0); /* c string */ 01113 return updateSize(pb, pos); 01114 } 01115 01116 static int mov_write_hmhd_tag(AVIOContext *pb) 01117 { 01118 /* This atom must be present, but leaving the values at zero 01119 * seems harmless. */ 01120 avio_wb32(pb, 28); /* size */ 01121 ffio_wfourcc(pb, "hmhd"); 01122 avio_wb32(pb, 0); /* version, flags */ 01123 avio_wb16(pb, 0); /* maxPDUsize */ 01124 avio_wb16(pb, 0); /* avgPDUsize */ 01125 avio_wb32(pb, 0); /* maxbitrate */ 01126 avio_wb32(pb, 0); /* avgbitrate */ 01127 avio_wb32(pb, 0); /* reserved */ 01128 return 28; 01129 } 01130 01131 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track) 01132 { 01133 int64_t pos = avio_tell(pb); 01134 avio_wb32(pb, 0); /* size */ 01135 ffio_wfourcc(pb, "minf"); 01136 if(track->enc->codec_type == AVMEDIA_TYPE_VIDEO) 01137 mov_write_vmhd_tag(pb); 01138 else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) 01139 mov_write_smhd_tag(pb); 01140 else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) { 01141 if (track->tag == MKTAG('t','e','x','t')) mov_write_gmhd_tag(pb); 01142 else mov_write_nmhd_tag(pb); 01143 } else if (track->tag == MKTAG('r','t','p',' ')) { 01144 mov_write_hmhd_tag(pb); 01145 } 01146 if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */ 01147 mov_write_hdlr_tag(pb, NULL); 01148 mov_write_dinf_tag(pb); 01149 mov_write_stbl_tag(pb, track); 01150 return updateSize(pb, pos); 01151 } 01152 01153 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track) 01154 { 01155 int version = track->trackDuration < INT32_MAX ? 0 : 1; 01156 01157 (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */ 01158 ffio_wfourcc(pb, "mdhd"); 01159 avio_w8(pb, version); 01160 avio_wb24(pb, 0); /* flags */ 01161 if (version == 1) { 01162 avio_wb64(pb, track->time); 01163 avio_wb64(pb, track->time); 01164 } else { 01165 avio_wb32(pb, track->time); /* creation time */ 01166 avio_wb32(pb, track->time); /* modification time */ 01167 } 01168 avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */ 01169 (version == 1) ? avio_wb64(pb, track->trackDuration) : avio_wb32(pb, track->trackDuration); /* duration */ 01170 avio_wb16(pb, track->language); /* language */ 01171 avio_wb16(pb, 0); /* reserved (quality) */ 01172 01173 if(version!=0 && track->mode == MODE_MOV){ 01174 av_log(NULL, AV_LOG_ERROR, 01175 "FATAL error, file duration too long for timebase, this file will not be\n" 01176 "playable with quicktime. Choose a different timebase or a different\n" 01177 "container format\n"); 01178 } 01179 01180 return 32; 01181 } 01182 01183 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track) 01184 { 01185 int64_t pos = avio_tell(pb); 01186 avio_wb32(pb, 0); /* size */ 01187 ffio_wfourcc(pb, "mdia"); 01188 mov_write_mdhd_tag(pb, track); 01189 mov_write_hdlr_tag(pb, track); 01190 mov_write_minf_tag(pb, track); 01191 return updateSize(pb, pos); 01192 } 01193 01194 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st) 01195 { 01196 int64_t duration = av_rescale_rnd(track->trackDuration, MOV_TIMESCALE, 01197 track->timescale, AV_ROUND_UP); 01198 int version = duration < INT32_MAX ? 0 : 1; 01199 01200 (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */ 01201 ffio_wfourcc(pb, "tkhd"); 01202 avio_w8(pb, version); 01203 avio_wb24(pb, 0xf); /* flags (track enabled) */ 01204 if (version == 1) { 01205 avio_wb64(pb, track->time); 01206 avio_wb64(pb, track->time); 01207 } else { 01208 avio_wb32(pb, track->time); /* creation time */ 01209 avio_wb32(pb, track->time); /* modification time */ 01210 } 01211 avio_wb32(pb, track->trackID); /* track-id */ 01212 avio_wb32(pb, 0); /* reserved */ 01213 (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration); 01214 01215 avio_wb32(pb, 0); /* reserved */ 01216 avio_wb32(pb, 0); /* reserved */ 01217 avio_wb16(pb, 0); /* layer */ 01218 avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */ 01219 /* Volume, only for audio */ 01220 if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO) 01221 avio_wb16(pb, 0x0100); 01222 else 01223 avio_wb16(pb, 0); 01224 avio_wb16(pb, 0); /* reserved */ 01225 01226 /* Matrix structure */ 01227 avio_wb32(pb, 0x00010000); /* reserved */ 01228 avio_wb32(pb, 0x0); /* reserved */ 01229 avio_wb32(pb, 0x0); /* reserved */ 01230 avio_wb32(pb, 0x0); /* reserved */ 01231 avio_wb32(pb, 0x00010000); /* reserved */ 01232 avio_wb32(pb, 0x0); /* reserved */ 01233 avio_wb32(pb, 0x0); /* reserved */ 01234 avio_wb32(pb, 0x0); /* reserved */ 01235 avio_wb32(pb, 0x40000000); /* reserved */ 01236 01237 /* Track width and height, for visual only */ 01238 if(st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO || 01239 track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) { 01240 if(track->mode == MODE_MOV) { 01241 avio_wb32(pb, track->enc->width << 16); 01242 avio_wb32(pb, track->height << 16); 01243 } else { 01244 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio); 01245 if(!sample_aspect_ratio || track->height != track->enc->height) 01246 sample_aspect_ratio = 1; 01247 avio_wb32(pb, sample_aspect_ratio * track->enc->width*0x10000); 01248 avio_wb32(pb, track->height*0x10000); 01249 } 01250 } 01251 else { 01252 avio_wb32(pb, 0); 01253 avio_wb32(pb, 0); 01254 } 01255 return 0x5c; 01256 } 01257 01258 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track) 01259 { 01260 int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width, 01261 track->enc->sample_aspect_ratio.den); 01262 01263 int64_t pos = avio_tell(pb); 01264 01265 avio_wb32(pb, 0); /* size */ 01266 ffio_wfourcc(pb, "tapt"); 01267 01268 avio_wb32(pb, 20); 01269 ffio_wfourcc(pb, "clef"); 01270 avio_wb32(pb, 0); 01271 avio_wb32(pb, width << 16); 01272 avio_wb32(pb, track->enc->height << 16); 01273 01274 avio_wb32(pb, 20); 01275 ffio_wfourcc(pb, "enof"); 01276 avio_wb32(pb, 0); 01277 avio_wb32(pb, track->enc->width << 16); 01278 avio_wb32(pb, track->enc->height << 16); 01279 01280 return updateSize(pb, pos); 01281 }; 01282 01283 // This box seems important for the psp playback ... without it the movie seems to hang 01284 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track) 01285 { 01286 int64_t duration = av_rescale_rnd(track->trackDuration, MOV_TIMESCALE, 01287 track->timescale, AV_ROUND_UP); 01288 int version = duration < INT32_MAX ? 0 : 1; 01289 int entry_size, entry_count, size; 01290 int64_t delay, start_ct = track->cluster[0].cts; 01291 delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE, 01292 track->timescale, AV_ROUND_DOWN); 01293 version |= delay < INT32_MAX ? 0 : 1; 01294 01295 entry_size = (version == 1) ? 20 : 12; 01296 entry_count = 1 + (delay > 0); 01297 size = 24 + entry_count * entry_size; 01298 01299 /* write the atom data */ 01300 avio_wb32(pb, size); 01301 ffio_wfourcc(pb, "edts"); 01302 avio_wb32(pb, size - 8); 01303 ffio_wfourcc(pb, "elst"); 01304 avio_w8(pb, version); 01305 avio_wb24(pb, 0); /* flags */ 01306 01307 avio_wb32(pb, entry_count); 01308 if (delay > 0) { /* add an empty edit to delay presentation */ 01309 if (version == 1) { 01310 avio_wb64(pb, delay); 01311 avio_wb64(pb, -1); 01312 } else { 01313 avio_wb32(pb, delay); 01314 avio_wb32(pb, -1); 01315 } 01316 avio_wb32(pb, 0x00010000); 01317 } 01318 01319 /* duration */ 01320 if (version == 1) { 01321 avio_wb64(pb, duration); 01322 avio_wb64(pb, start_ct); 01323 } else { 01324 avio_wb32(pb, duration); 01325 avio_wb32(pb, start_ct); 01326 } 01327 avio_wb32(pb, 0x00010000); 01328 return size; 01329 } 01330 01331 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track) 01332 { 01333 avio_wb32(pb, 20); // size 01334 ffio_wfourcc(pb, "tref"); 01335 avio_wb32(pb, 12); // size (subatom) 01336 avio_wl32(pb, track->tref_tag); 01337 avio_wb32(pb, track->tref_id); 01338 return 20; 01339 } 01340 01341 // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it) 01342 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov) 01343 { 01344 avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */ 01345 ffio_wfourcc(pb, "uuid"); 01346 ffio_wfourcc(pb, "USMT"); 01347 avio_wb32(pb, 0x21d24fce); 01348 avio_wb32(pb, 0xbb88695c); 01349 avio_wb32(pb, 0xfac9c740); 01350 avio_wb32(pb, 0x1c); // another size here! 01351 ffio_wfourcc(pb, "MTDT"); 01352 avio_wb32(pb, 0x00010012); 01353 avio_wb32(pb, 0x0a); 01354 avio_wb32(pb, 0x55c40000); 01355 avio_wb32(pb, 0x1); 01356 avio_wb32(pb, 0x0); 01357 return 0x34; 01358 } 01359 01360 static int mov_write_udta_sdp(AVIOContext *pb, AVFormatContext *ctx, int index) 01361 { 01362 char buf[1000] = ""; 01363 int len; 01364 01365 ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0]->codec, NULL, NULL, 0, 0, ctx); 01366 av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", index); 01367 len = strlen(buf); 01368 01369 avio_wb32(pb, len + 24); 01370 ffio_wfourcc(pb, "udta"); 01371 avio_wb32(pb, len + 16); 01372 ffio_wfourcc(pb, "hnti"); 01373 avio_wb32(pb, len + 8); 01374 ffio_wfourcc(pb, "sdp "); 01375 avio_write(pb, buf, len); 01376 return len + 24; 01377 } 01378 01379 static int mov_write_trak_tag(AVIOContext *pb, MOVTrack *track, AVStream *st) 01380 { 01381 int64_t pos = avio_tell(pb); 01382 avio_wb32(pb, 0); /* size */ 01383 ffio_wfourcc(pb, "trak"); 01384 mov_write_tkhd_tag(pb, track, st); 01385 if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS || track->cluster[0].dts) 01386 mov_write_edts_tag(pb, track); // PSP Movies require edts box 01387 if (track->tref_tag) 01388 mov_write_tref_tag(pb, track); 01389 mov_write_mdia_tag(pb, track); 01390 if (track->mode == MODE_PSP) 01391 mov_write_uuid_tag_psp(pb,track); // PSP Movies require this uuid box 01392 if (track->tag == MKTAG('r','t','p',' ')) 01393 mov_write_udta_sdp(pb, track->rtp_ctx, track->trackID); 01394 if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) { 01395 double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio); 01396 if (0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio) 01397 mov_write_tapt_tag(pb, track); 01398 }; 01399 return updateSize(pb, pos); 01400 } 01401 01402 #if 0 01403 /* TODO: Not sorted out, but not necessary either */ 01404 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov) 01405 { 01406 avio_wb32(pb, 0x15); /* size */ 01407 ffio_wfourcc(pb, "iods"); 01408 avio_wb32(pb, 0); /* version & flags */ 01409 avio_wb16(pb, 0x1007); 01410 avio_w8(pb, 0); 01411 avio_wb16(pb, 0x4fff); 01412 avio_wb16(pb, 0xfffe); 01413 avio_wb16(pb, 0x01ff); 01414 return 0x15; 01415 } 01416 #endif 01417 01418 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov) 01419 { 01420 int maxTrackID = 1, i; 01421 int64_t maxTrackLenTemp, maxTrackLen = 0; 01422 int version; 01423 01424 for (i=0; i<mov->nb_streams; i++) { 01425 if(mov->tracks[i].entry > 0) { 01426 maxTrackLenTemp = av_rescale_rnd(mov->tracks[i].trackDuration, 01427 MOV_TIMESCALE, 01428 mov->tracks[i].timescale, 01429 AV_ROUND_UP); 01430 if(maxTrackLen < maxTrackLenTemp) 01431 maxTrackLen = maxTrackLenTemp; 01432 if(maxTrackID < mov->tracks[i].trackID) 01433 maxTrackID = mov->tracks[i].trackID; 01434 } 01435 } 01436 01437 version = maxTrackLen < UINT32_MAX ? 0 : 1; 01438 (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */ 01439 ffio_wfourcc(pb, "mvhd"); 01440 avio_w8(pb, version); 01441 avio_wb24(pb, 0); /* flags */ 01442 if (version == 1) { 01443 avio_wb64(pb, mov->time); 01444 avio_wb64(pb, mov->time); 01445 } else { 01446 avio_wb32(pb, mov->time); /* creation time */ 01447 avio_wb32(pb, mov->time); /* modification time */ 01448 } 01449 avio_wb32(pb, MOV_TIMESCALE); 01450 (version == 1) ? avio_wb64(pb, maxTrackLen) : avio_wb32(pb, maxTrackLen); /* duration of longest track */ 01451 01452 avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */ 01453 avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */ 01454 avio_wb16(pb, 0); /* reserved */ 01455 avio_wb32(pb, 0); /* reserved */ 01456 avio_wb32(pb, 0); /* reserved */ 01457 01458 /* Matrix structure */ 01459 avio_wb32(pb, 0x00010000); /* reserved */ 01460 avio_wb32(pb, 0x0); /* reserved */ 01461 avio_wb32(pb, 0x0); /* reserved */ 01462 avio_wb32(pb, 0x0); /* reserved */ 01463 avio_wb32(pb, 0x00010000); /* reserved */ 01464 avio_wb32(pb, 0x0); /* reserved */ 01465 avio_wb32(pb, 0x0); /* reserved */ 01466 avio_wb32(pb, 0x0); /* reserved */ 01467 avio_wb32(pb, 0x40000000); /* reserved */ 01468 01469 avio_wb32(pb, 0); /* reserved (preview time) */ 01470 avio_wb32(pb, 0); /* reserved (preview duration) */ 01471 avio_wb32(pb, 0); /* reserved (poster time) */ 01472 avio_wb32(pb, 0); /* reserved (selection time) */ 01473 avio_wb32(pb, 0); /* reserved (selection duration) */ 01474 avio_wb32(pb, 0); /* reserved (current time) */ 01475 avio_wb32(pb, maxTrackID+1); /* Next track id */ 01476 return 0x6c; 01477 } 01478 01479 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov, 01480 AVFormatContext *s) 01481 { 01482 avio_wb32(pb, 33); /* size */ 01483 ffio_wfourcc(pb, "hdlr"); 01484 avio_wb32(pb, 0); 01485 avio_wb32(pb, 0); 01486 ffio_wfourcc(pb, "mdir"); 01487 ffio_wfourcc(pb, "appl"); 01488 avio_wb32(pb, 0); 01489 avio_wb32(pb, 0); 01490 avio_w8(pb, 0); 01491 return 33; 01492 } 01493 01494 /* helper function to write a data tag with the specified string as data */ 01495 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style) 01496 { 01497 if(long_style){ 01498 int size = 16 + strlen(data); 01499 avio_wb32(pb, size); /* size */ 01500 ffio_wfourcc(pb, "data"); 01501 avio_wb32(pb, 1); 01502 avio_wb32(pb, 0); 01503 avio_write(pb, data, strlen(data)); 01504 return size; 01505 }else{ 01506 if (!lang) 01507 lang = ff_mov_iso639_to_lang("und", 1); 01508 avio_wb16(pb, strlen(data)); /* string length */ 01509 avio_wb16(pb, lang); 01510 avio_write(pb, data, strlen(data)); 01511 return strlen(data) + 4; 01512 } 01513 } 01514 01515 static int mov_write_string_tag(AVIOContext *pb, const char *name, const char *value, int lang, int long_style){ 01516 int size = 0; 01517 if (value && value[0]) { 01518 int64_t pos = avio_tell(pb); 01519 avio_wb32(pb, 0); /* size */ 01520 ffio_wfourcc(pb, name); 01521 mov_write_string_data_tag(pb, value, lang, long_style); 01522 size= updateSize(pb, pos); 01523 } 01524 return size; 01525 } 01526 01527 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb, 01528 const char *name, const char *tag, 01529 int long_style) 01530 { 01531 int l, lang = 0, len, len2; 01532 AVDictionaryEntry *t, *t2 = NULL; 01533 char tag2[16]; 01534 01535 if (!(t = av_dict_get(s->metadata, tag, NULL, 0))) 01536 return 0; 01537 01538 len = strlen(t->key); 01539 snprintf(tag2, sizeof(tag2), "%s-", tag); 01540 while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) { 01541 len2 = strlen(t2->key); 01542 if (len2 == len+4 && !strcmp(t->value, t2->value) 01543 && (l=ff_mov_iso639_to_lang(&t2->key[len2-3], 1)) >= 0) { 01544 lang = l; 01545 break; 01546 } 01547 } 01548 return mov_write_string_tag(pb, name, t->value, lang, long_style); 01549 } 01550 01551 /* iTunes track number */ 01552 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov, 01553 AVFormatContext *s) 01554 { 01555 AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0); 01556 int size = 0, track = t ? atoi(t->value) : 0; 01557 if (track) { 01558 avio_wb32(pb, 32); /* size */ 01559 ffio_wfourcc(pb, "trkn"); 01560 avio_wb32(pb, 24); /* size */ 01561 ffio_wfourcc(pb, "data"); 01562 avio_wb32(pb, 0); // 8 bytes empty 01563 avio_wb32(pb, 0); 01564 avio_wb16(pb, 0); // empty 01565 avio_wb16(pb, track); // track number 01566 avio_wb16(pb, 0); // total track number 01567 avio_wb16(pb, 0); // empty 01568 size = 32; 01569 } 01570 return size; 01571 } 01572 01573 /* iTunes meta data list */ 01574 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov, 01575 AVFormatContext *s) 01576 { 01577 int64_t pos = avio_tell(pb); 01578 avio_wb32(pb, 0); /* size */ 01579 ffio_wfourcc(pb, "ilst"); 01580 mov_write_string_metadata(s, pb, "\251nam", "title" , 1); 01581 mov_write_string_metadata(s, pb, "\251ART", "artist" , 1); 01582 mov_write_string_metadata(s, pb, "aART", "album_artist", 1); 01583 mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1); 01584 mov_write_string_metadata(s, pb, "\251alb", "album" , 1); 01585 mov_write_string_metadata(s, pb, "\251day", "date" , 1); 01586 mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1); 01587 mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1); 01588 mov_write_string_metadata(s, pb, "\251gen", "genre" , 1); 01589 mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1); 01590 mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1); 01591 mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1); 01592 mov_write_string_metadata(s, pb, "desc", "description",1); 01593 mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1); 01594 mov_write_string_metadata(s, pb, "tvsh", "show" , 1); 01595 mov_write_string_metadata(s, pb, "tven", "episode_id",1); 01596 mov_write_string_metadata(s, pb, "tvnn", "network" , 1); 01597 mov_write_trkn_tag(pb, mov, s); 01598 return updateSize(pb, pos); 01599 } 01600 01601 /* iTunes meta data tag */ 01602 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov, 01603 AVFormatContext *s) 01604 { 01605 int size = 0; 01606 int64_t pos = avio_tell(pb); 01607 avio_wb32(pb, 0); /* size */ 01608 ffio_wfourcc(pb, "meta"); 01609 avio_wb32(pb, 0); 01610 mov_write_itunes_hdlr_tag(pb, mov, s); 01611 mov_write_ilst_tag(pb, mov, s); 01612 size = updateSize(pb, pos); 01613 return size; 01614 } 01615 01616 static int utf8len(const uint8_t *b) 01617 { 01618 int len=0; 01619 int val; 01620 while(*b){ 01621 GET_UTF8(val, *b++, return -1;) 01622 len++; 01623 } 01624 return len; 01625 } 01626 01627 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b) 01628 { 01629 int val; 01630 while(*b){ 01631 GET_UTF8(val, *b++, return -1;) 01632 avio_wb16(pb, val); 01633 } 01634 avio_wb16(pb, 0x00); 01635 return 0; 01636 } 01637 01638 static uint16_t language_code(const char *str) 01639 { 01640 return (((str[0]-0x60) & 0x1F) << 10) + (((str[1]-0x60) & 0x1F) << 5) + ((str[2]-0x60) & 0x1F); 01641 } 01642 01643 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s, 01644 const char *tag, const char *str) 01645 { 01646 int64_t pos = avio_tell(pb); 01647 AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0); 01648 if (!t || !utf8len(t->value)) 01649 return 0; 01650 avio_wb32(pb, 0); /* size */ 01651 ffio_wfourcc(pb, tag); /* type */ 01652 avio_wb32(pb, 0); /* version + flags */ 01653 if (!strcmp(tag, "yrrc")) 01654 avio_wb16(pb, atoi(t->value)); 01655 else { 01656 avio_wb16(pb, language_code("eng")); /* language */ 01657 avio_write(pb, t->value, strlen(t->value)+1); /* UTF8 string value */ 01658 if (!strcmp(tag, "albm") && 01659 (t = av_dict_get(s->metadata, "track", NULL, 0))) 01660 avio_w8(pb, atoi(t->value)); 01661 } 01662 return updateSize(pb, pos); 01663 } 01664 01665 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s) 01666 { 01667 int64_t pos = avio_tell(pb); 01668 int i, nb_chapters = FFMIN(s->nb_chapters, 255); 01669 01670 avio_wb32(pb, 0); // size 01671 ffio_wfourcc(pb, "chpl"); 01672 avio_wb32(pb, 0x01000000); // version + flags 01673 avio_wb32(pb, 0); // unknown 01674 avio_w8(pb, nb_chapters); 01675 01676 for (i = 0; i < nb_chapters; i++) { 01677 AVChapter *c = s->chapters[i]; 01678 AVDictionaryEntry *t; 01679 avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000})); 01680 01681 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) { 01682 int len = FFMIN(strlen(t->value), 255); 01683 avio_w8(pb, len); 01684 avio_write(pb, t->value, len); 01685 } else 01686 avio_w8(pb, 0); 01687 } 01688 return updateSize(pb, pos); 01689 } 01690 01691 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov, 01692 AVFormatContext *s) 01693 { 01694 AVIOContext *pb_buf; 01695 int i, ret, size; 01696 uint8_t *buf; 01697 01698 for (i = 0; i < s->nb_streams; i++) 01699 if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) { 01700 return 0; 01701 } 01702 01703 ret = avio_open_dyn_buf(&pb_buf); 01704 if(ret < 0) 01705 return ret; 01706 01707 if (mov->mode & MODE_3GP) { 01708 mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist"); 01709 mov_write_3gp_udta_tag(pb_buf, s, "titl", "title"); 01710 mov_write_3gp_udta_tag(pb_buf, s, "auth", "author"); 01711 mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre"); 01712 mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment"); 01713 mov_write_3gp_udta_tag(pb_buf, s, "albm", "album"); 01714 mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright"); 01715 mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date"); 01716 } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4 01717 mov_write_string_metadata(s, pb_buf, "\251ART", "artist" , 0); 01718 mov_write_string_metadata(s, pb_buf, "\251nam", "title" , 0); 01719 mov_write_string_metadata(s, pb_buf, "\251aut", "author" , 0); 01720 mov_write_string_metadata(s, pb_buf, "\251alb", "album" , 0); 01721 mov_write_string_metadata(s, pb_buf, "\251day", "date" , 0); 01722 mov_write_string_metadata(s, pb_buf, "\251swr", "encoder" , 0); 01723 mov_write_string_metadata(s, pb_buf, "\251des", "comment" , 0); 01724 mov_write_string_metadata(s, pb_buf, "\251gen", "genre" , 0); 01725 mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright" , 0); 01726 } else { 01727 /* iTunes meta data */ 01728 mov_write_meta_tag(pb_buf, mov, s); 01729 } 01730 01731 if (s->nb_chapters) 01732 mov_write_chpl_tag(pb_buf, s); 01733 01734 if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) { 01735 avio_wb32(pb, size+8); 01736 ffio_wfourcc(pb, "udta"); 01737 avio_write(pb, buf, size); 01738 } 01739 av_free(buf); 01740 01741 return 0; 01742 } 01743 01744 static void mov_write_psp_udta_tag(AVIOContext *pb, 01745 const char *str, const char *lang, int type) 01746 { 01747 int len = utf8len(str)+1; 01748 if(len<=0) 01749 return; 01750 avio_wb16(pb, len*2+10); /* size */ 01751 avio_wb32(pb, type); /* type */ 01752 avio_wb16(pb, language_code(lang)); /* language */ 01753 avio_wb16(pb, 0x01); /* ? */ 01754 ascii_to_wc(pb, str); 01755 } 01756 01757 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s) 01758 { 01759 AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0); 01760 int64_t pos, pos2; 01761 01762 if (title) { 01763 pos = avio_tell(pb); 01764 avio_wb32(pb, 0); /* size placeholder*/ 01765 ffio_wfourcc(pb, "uuid"); 01766 ffio_wfourcc(pb, "USMT"); 01767 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */ 01768 avio_wb32(pb, 0xbb88695c); 01769 avio_wb32(pb, 0xfac9c740); 01770 01771 pos2 = avio_tell(pb); 01772 avio_wb32(pb, 0); /* size placeholder*/ 01773 ffio_wfourcc(pb, "MTDT"); 01774 avio_wb16(pb, 4); 01775 01776 // ? 01777 avio_wb16(pb, 0x0C); /* size */ 01778 avio_wb32(pb, 0x0B); /* type */ 01779 avio_wb16(pb, language_code("und")); /* language */ 01780 avio_wb16(pb, 0x0); /* ? */ 01781 avio_wb16(pb, 0x021C); /* data */ 01782 01783 mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT, "eng", 0x04); 01784 mov_write_psp_udta_tag(pb, title->value, "eng", 0x01); 01785 // snprintf(dt,32,"%04d/%02d/%02d %02d:%02d:%02d",t_st->tm_year+1900,t_st->tm_mon+1,t_st->tm_mday,t_st->tm_hour,t_st->tm_min,t_st->tm_sec); 01786 mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03); 01787 01788 updateSize(pb, pos2); 01789 return updateSize(pb, pos); 01790 } 01791 01792 return 0; 01793 } 01794 01795 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov, 01796 AVFormatContext *s) 01797 { 01798 int i; 01799 int64_t pos = avio_tell(pb); 01800 avio_wb32(pb, 0); /* size placeholder*/ 01801 ffio_wfourcc(pb, "moov"); 01802 01803 for (i=0; i<mov->nb_streams; i++) { 01804 if(mov->tracks[i].entry <= 0) continue; 01805 01806 mov->tracks[i].time = mov->time; 01807 mov->tracks[i].trackID = i+1; 01808 } 01809 01810 if (mov->chapter_track) 01811 for (i=0; i<s->nb_streams; i++) { 01812 mov->tracks[i].tref_tag = MKTAG('c','h','a','p'); 01813 mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].trackID; 01814 } 01815 for (i = 0; i < mov->nb_streams; i++) { 01816 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) { 01817 mov->tracks[i].tref_tag = MKTAG('h','i','n','t'); 01818 mov->tracks[i].tref_id = 01819 mov->tracks[mov->tracks[i].src_track].trackID; 01820 } 01821 } 01822 01823 mov_write_mvhd_tag(pb, mov); 01824 //mov_write_iods_tag(pb, mov); 01825 for (i=0; i<mov->nb_streams; i++) { 01826 if(mov->tracks[i].entry > 0) { 01827 mov_write_trak_tag(pb, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL); 01828 } 01829 } 01830 01831 if (mov->mode == MODE_PSP) 01832 mov_write_uuidusmt_tag(pb, s); 01833 else 01834 mov_write_udta_tag(pb, mov, s); 01835 01836 return updateSize(pb, pos); 01837 } 01838 01839 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov) 01840 { 01841 avio_wb32(pb, 8); // placeholder for extended size field (64 bit) 01842 ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free"); 01843 01844 mov->mdat_pos = avio_tell(pb); 01845 avio_wb32(pb, 0); /* size placeholder*/ 01846 ffio_wfourcc(pb, "mdat"); 01847 return 0; 01848 } 01849 01850 /* TODO: This needs to be more general */ 01851 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s) 01852 { 01853 MOVMuxContext *mov = s->priv_data; 01854 int64_t pos = avio_tell(pb); 01855 int has_h264 = 0, has_video = 0; 01856 int minor = 0x200; 01857 int i; 01858 01859 for (i = 0; i < s->nb_streams; i++) { 01860 AVStream *st = s->streams[i]; 01861 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) 01862 has_video = 1; 01863 if (st->codec->codec_id == CODEC_ID_H264) 01864 has_h264 = 1; 01865 } 01866 01867 avio_wb32(pb, 0); /* size */ 01868 ffio_wfourcc(pb, "ftyp"); 01869 01870 if (mov->mode == MODE_3GP) { 01871 ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4"); 01872 minor = has_h264 ? 0x100 : 0x200; 01873 } else if (mov->mode & MODE_3G2) { 01874 ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a"); 01875 minor = has_h264 ? 0x20000 : 0x10000; 01876 }else if (mov->mode == MODE_PSP) 01877 ffio_wfourcc(pb, "MSNV"); 01878 else if (mov->mode == MODE_MP4) 01879 ffio_wfourcc(pb, "isom"); 01880 else if (mov->mode == MODE_IPOD) 01881 ffio_wfourcc(pb, has_video ? "M4V ":"M4A "); 01882 else 01883 ffio_wfourcc(pb, "qt "); 01884 01885 avio_wb32(pb, minor); 01886 01887 if(mov->mode == MODE_MOV) 01888 ffio_wfourcc(pb, "qt "); 01889 else{ 01890 ffio_wfourcc(pb, "isom"); 01891 ffio_wfourcc(pb, "iso2"); 01892 if(has_h264) 01893 ffio_wfourcc(pb, "avc1"); 01894 } 01895 01896 if (mov->mode == MODE_3GP) 01897 ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4"); 01898 else if (mov->mode & MODE_3G2) 01899 ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a"); 01900 else if (mov->mode == MODE_PSP) 01901 ffio_wfourcc(pb, "MSNV"); 01902 else if (mov->mode == MODE_MP4) 01903 ffio_wfourcc(pb, "mp41"); 01904 return updateSize(pb, pos); 01905 } 01906 01907 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s) 01908 { 01909 AVCodecContext *VideoCodec = s->streams[0]->codec; 01910 AVCodecContext *AudioCodec = s->streams[1]->codec; 01911 int AudioRate = AudioCodec->sample_rate; 01912 int FrameRate = ((VideoCodec->time_base.den) * (0x10000))/ (VideoCodec->time_base.num); 01913 int audio_kbitrate= AudioCodec->bit_rate / 1000; 01914 int video_kbitrate= FFMIN(VideoCodec->bit_rate / 1000, 800 - audio_kbitrate); 01915 01916 avio_wb32(pb, 0x94); /* size */ 01917 ffio_wfourcc(pb, "uuid"); 01918 ffio_wfourcc(pb, "PROF"); 01919 01920 avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */ 01921 avio_wb32(pb, 0xbb88695c); 01922 avio_wb32(pb, 0xfac9c740); 01923 01924 avio_wb32(pb, 0x0); /* ? */ 01925 avio_wb32(pb, 0x3); /* 3 sections ? */ 01926 01927 avio_wb32(pb, 0x14); /* size */ 01928 ffio_wfourcc(pb, "FPRF"); 01929 avio_wb32(pb, 0x0); /* ? */ 01930 avio_wb32(pb, 0x0); /* ? */ 01931 avio_wb32(pb, 0x0); /* ? */ 01932 01933 avio_wb32(pb, 0x2c); /* size */ 01934 ffio_wfourcc(pb, "APRF");/* audio */ 01935 avio_wb32(pb, 0x0); 01936 avio_wb32(pb, 0x2); /* TrackID */ 01937 ffio_wfourcc(pb, "mp4a"); 01938 avio_wb32(pb, 0x20f); 01939 avio_wb32(pb, 0x0); 01940 avio_wb32(pb, audio_kbitrate); 01941 avio_wb32(pb, audio_kbitrate); 01942 avio_wb32(pb, AudioRate); 01943 avio_wb32(pb, AudioCodec->channels); 01944 01945 avio_wb32(pb, 0x34); /* size */ 01946 ffio_wfourcc(pb, "VPRF"); /* video */ 01947 avio_wb32(pb, 0x0); 01948 avio_wb32(pb, 0x1); /* TrackID */ 01949 if (VideoCodec->codec_id == CODEC_ID_H264) { 01950 ffio_wfourcc(pb, "avc1"); 01951 avio_wb16(pb, 0x014D); 01952 avio_wb16(pb, 0x0015); 01953 } else { 01954 ffio_wfourcc(pb, "mp4v"); 01955 avio_wb16(pb, 0x0000); 01956 avio_wb16(pb, 0x0103); 01957 } 01958 avio_wb32(pb, 0x0); 01959 avio_wb32(pb, video_kbitrate); 01960 avio_wb32(pb, video_kbitrate); 01961 avio_wb32(pb, FrameRate); 01962 avio_wb32(pb, FrameRate); 01963 avio_wb16(pb, VideoCodec->width); 01964 avio_wb16(pb, VideoCodec->height); 01965 avio_wb32(pb, 0x010001); /* ? */ 01966 } 01967 01968 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags) 01969 { 01970 uint32_t c = -1; 01971 int i, closed_gop = 0; 01972 01973 for (i = 0; i < pkt->size - 4; i++) { 01974 c = (c<<8) + pkt->data[i]; 01975 if (c == 0x1b8) { // gop 01976 closed_gop = pkt->data[i+4]>>6 & 0x01; 01977 } else if (c == 0x100) { // pic 01978 int temp_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6); 01979 if (!temp_ref || closed_gop) // I picture is not reordered 01980 *flags = MOV_SYNC_SAMPLE; 01981 else 01982 *flags = MOV_PARTIAL_SYNC_SAMPLE; 01983 break; 01984 } 01985 } 01986 return 0; 01987 } 01988 01989 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt) 01990 { 01991 MOVMuxContext *mov = s->priv_data; 01992 AVIOContext *pb = s->pb; 01993 MOVTrack *trk = &mov->tracks[pkt->stream_index]; 01994 AVCodecContext *enc = trk->enc; 01995 unsigned int samplesInChunk = 0; 01996 int size= pkt->size; 01997 01998 if (!s->pb->seekable) return 0; /* Can't handle that */ 01999 if (!size) return 0; /* Discard 0 sized packets */ 02000 02001 if (enc->codec_id == CODEC_ID_AMR_NB) { 02002 /* We must find out how many AMR blocks there are in one packet */ 02003 static uint16_t packed_size[16] = 02004 {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 0}; 02005 int len = 0; 02006 02007 while (len < size && samplesInChunk < 100) { 02008 len += packed_size[(pkt->data[len] >> 3) & 0x0F]; 02009 samplesInChunk++; 02010 } 02011 if(samplesInChunk > 1){ 02012 av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n"); 02013 return -1; 02014 } 02015 } else if (enc->codec_id == CODEC_ID_ADPCM_MS || 02016 enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) { 02017 samplesInChunk = enc->frame_size; 02018 } else if (trk->sampleSize) 02019 samplesInChunk = size/trk->sampleSize; 02020 else 02021 samplesInChunk = 1; 02022 02023 /* copy extradata if it exists */ 02024 if (trk->vosLen == 0 && enc->extradata_size > 0) { 02025 trk->vosLen = enc->extradata_size; 02026 trk->vosData = av_malloc(trk->vosLen); 02027 memcpy(trk->vosData, enc->extradata, trk->vosLen); 02028 } 02029 02030 if (enc->codec_id == CODEC_ID_H264 && trk->vosLen > 0 && *(uint8_t *)trk->vosData != 1) { 02031 /* from x264 or from bytestream h264 */ 02032 /* nal reformating needed */ 02033 size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size); 02034 } else { 02035 avio_write(pb, pkt->data, size); 02036 } 02037 02038 if ((enc->codec_id == CODEC_ID_DNXHD || 02039 enc->codec_id == CODEC_ID_AC3) && !trk->vosLen) { 02040 /* copy frame to create needed atoms */ 02041 trk->vosLen = size; 02042 trk->vosData = av_malloc(size); 02043 if (!trk->vosData) 02044 return AVERROR(ENOMEM); 02045 memcpy(trk->vosData, pkt->data, size); 02046 } 02047 02048 if (!(trk->entry % MOV_INDEX_CLUSTER_SIZE)) { 02049 trk->cluster = av_realloc(trk->cluster, (trk->entry + MOV_INDEX_CLUSTER_SIZE) * sizeof(*trk->cluster)); 02050 if (!trk->cluster) 02051 return -1; 02052 } 02053 02054 trk->cluster[trk->entry].pos = avio_tell(pb) - size; 02055 trk->cluster[trk->entry].samplesInChunk = samplesInChunk; 02056 trk->cluster[trk->entry].size = size; 02057 trk->cluster[trk->entry].entries = samplesInChunk; 02058 trk->cluster[trk->entry].dts = pkt->dts; 02059 trk->trackDuration = pkt->dts - trk->cluster[0].dts + pkt->duration; 02060 02061 if (pkt->pts == AV_NOPTS_VALUE) { 02062 av_log(s, AV_LOG_WARNING, "pts has no value\n"); 02063 pkt->pts = pkt->dts; 02064 } 02065 if (pkt->dts != pkt->pts) 02066 trk->flags |= MOV_TRACK_CTTS; 02067 trk->cluster[trk->entry].cts = pkt->pts - pkt->dts; 02068 trk->cluster[trk->entry].flags = 0; 02069 if (pkt->flags & AV_PKT_FLAG_KEY) { 02070 if (mov->mode == MODE_MOV && enc->codec_id == CODEC_ID_MPEG2VIDEO && 02071 trk->entry > 0) { // force sync sample for the first key frame 02072 mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags); 02073 if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE) 02074 trk->flags |= MOV_TRACK_STPS; 02075 } else { 02076 trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE; 02077 } 02078 if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE) 02079 trk->hasKeyframes++; 02080 } 02081 trk->entry++; 02082 trk->sampleCount += samplesInChunk; 02083 mov->mdat_size += size; 02084 02085 avio_flush(pb); 02086 02087 if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) 02088 ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry); 02089 return 0; 02090 } 02091 02092 // QuickTime chapters involve an additional text track with the chapter names 02093 // as samples, and a tref pointing from the other tracks to the chapter one. 02094 static void mov_create_chapter_track(AVFormatContext *s, int tracknum) 02095 { 02096 MOVMuxContext *mov = s->priv_data; 02097 MOVTrack *track = &mov->tracks[tracknum]; 02098 AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY }; 02099 int i, len; 02100 02101 track->mode = mov->mode; 02102 track->tag = MKTAG('t','e','x','t'); 02103 track->timescale = MOV_TIMESCALE; 02104 track->enc = avcodec_alloc_context(); 02105 track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE; 02106 02107 for (i = 0; i < s->nb_chapters; i++) { 02108 AVChapter *c = s->chapters[i]; 02109 AVDictionaryEntry *t; 02110 02111 int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE}); 02112 pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE}); 02113 pkt.duration = end - pkt.dts; 02114 02115 if ((t = av_dict_get(c->metadata, "title", NULL, 0))) { 02116 len = strlen(t->value); 02117 pkt.size = len+2; 02118 pkt.data = av_malloc(pkt.size); 02119 AV_WB16(pkt.data, len); 02120 memcpy(pkt.data+2, t->value, len); 02121 ff_mov_write_packet(s, &pkt); 02122 av_freep(&pkt.data); 02123 } 02124 } 02125 } 02126 02127 static int mov_write_header(AVFormatContext *s) 02128 { 02129 AVIOContext *pb = s->pb; 02130 MOVMuxContext *mov = s->priv_data; 02131 int i, hint_track = 0; 02132 02133 if (!s->pb->seekable) { 02134 av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n"); 02135 return -1; 02136 } 02137 02138 /* Default mode == MP4 */ 02139 mov->mode = MODE_MP4; 02140 02141 if (s->oformat != NULL) { 02142 if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP; 02143 else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2; 02144 else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV; 02145 else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP; 02146 else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD; 02147 02148 mov_write_ftyp_tag(pb,s); 02149 if (mov->mode == MODE_PSP) { 02150 if (s->nb_streams != 2) { 02151 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n"); 02152 return -1; 02153 } 02154 mov_write_uuidprof_tag(pb,s); 02155 } 02156 } 02157 02158 mov->nb_streams = s->nb_streams; 02159 if (mov->mode & (MODE_MOV|MODE_IPOD) && s->nb_chapters) 02160 mov->chapter_track = mov->nb_streams++; 02161 02162 #if FF_API_FLAG_RTP_HINT 02163 if (s->flags & AVFMT_FLAG_RTP_HINT) { 02164 av_log(s, AV_LOG_WARNING, "The RTP_HINT flag is deprecated, enable it " 02165 "via the -movflags rtphint muxer option " 02166 "instead.\n"); 02167 mov->flags |= FF_MOV_FLAG_RTP_HINT; 02168 } 02169 #endif 02170 if (mov->flags & FF_MOV_FLAG_RTP_HINT) { 02171 /* Add hint tracks for each audio and video stream */ 02172 hint_track = mov->nb_streams; 02173 for (i = 0; i < s->nb_streams; i++) { 02174 AVStream *st = s->streams[i]; 02175 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO || 02176 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) { 02177 mov->nb_streams++; 02178 } 02179 } 02180 } 02181 02182 mov->tracks = av_mallocz(mov->nb_streams*sizeof(*mov->tracks)); 02183 if (!mov->tracks) 02184 return AVERROR(ENOMEM); 02185 02186 for(i=0; i<s->nb_streams; i++){ 02187 AVStream *st= s->streams[i]; 02188 MOVTrack *track= &mov->tracks[i]; 02189 AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0); 02190 02191 track->enc = st->codec; 02192 track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV); 02193 if (track->language < 0) 02194 track->language = 0; 02195 track->mode = mov->mode; 02196 track->tag = mov_find_codec_tag(s, track); 02197 if (!track->tag) { 02198 av_log(s, AV_LOG_ERROR, "track %d: could not find tag, " 02199 "codec not currently supported in container\n", i); 02200 goto error; 02201 } 02202 /* If hinting of this track is enabled by a later hint track, 02203 * this is updated. */ 02204 track->hint_track = -1; 02205 if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){ 02206 if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') || 02207 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') || 02208 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) { 02209 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) { 02210 av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n"); 02211 goto error; 02212 } 02213 track->height = track->tag>>24 == 'n' ? 486 : 576; 02214 } 02215 track->timescale = st->codec->time_base.den; 02216 if (track->mode == MODE_MOV && track->timescale > 100000) 02217 av_log(s, AV_LOG_WARNING, 02218 "WARNING codec timebase is very high. If duration is too long,\n" 02219 "file may not be playable by quicktime. Specify a shorter timebase\n" 02220 "or choose different container.\n"); 02221 }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO){ 02222 track->timescale = st->codec->sample_rate; 02223 if(!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) { 02224 av_log(s, AV_LOG_ERROR, "track %d: codec frame size is not set\n", i); 02225 goto error; 02226 }else if(st->codec->codec_id == CODEC_ID_ADPCM_MS || 02227 st->codec->codec_id == CODEC_ID_ADPCM_IMA_WAV){ 02228 if (!st->codec->block_align) { 02229 av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i); 02230 goto error; 02231 } 02232 track->sampleSize = st->codec->block_align; 02233 }else if(st->codec->frame_size > 1){ /* assume compressed audio */ 02234 track->audio_vbr = 1; 02235 }else{ 02236 st->codec->frame_size = 1; 02237 track->sampleSize = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels; 02238 } 02239 if (track->mode != MODE_MOV) { 02240 if (track->timescale > UINT16_MAX) { 02241 av_log(s, AV_LOG_ERROR, "track %d: output format does not support " 02242 "sample rate %dhz\n", i, track->timescale); 02243 goto error; 02244 } 02245 if (track->enc->codec_id == CODEC_ID_MP3 && track->timescale < 16000) { 02246 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n", 02247 i, track->enc->sample_rate); 02248 goto error; 02249 } 02250 } 02251 }else if(st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE){ 02252 track->timescale = st->codec->time_base.den; 02253 } 02254 if (!track->height) 02255 track->height = st->codec->height; 02256 02257 av_set_pts_info(st, 64, 1, track->timescale); 02258 } 02259 02260 mov_write_mdat_tag(pb, mov); 02261 mov->time = s->timestamp + 0x7C25B080; //1970 based -> 1904 based 02262 02263 if (mov->chapter_track) 02264 mov_create_chapter_track(s, mov->chapter_track); 02265 02266 if (mov->flags & FF_MOV_FLAG_RTP_HINT) { 02267 /* Initialize the hint tracks for each audio and video stream */ 02268 for (i = 0; i < s->nb_streams; i++) { 02269 AVStream *st = s->streams[i]; 02270 if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO || 02271 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) { 02272 ff_mov_init_hinting(s, hint_track, i); 02273 hint_track++; 02274 } 02275 } 02276 } 02277 02278 avio_flush(pb); 02279 02280 return 0; 02281 error: 02282 av_freep(&mov->tracks); 02283 return -1; 02284 } 02285 02286 static int mov_write_trailer(AVFormatContext *s) 02287 { 02288 MOVMuxContext *mov = s->priv_data; 02289 AVIOContext *pb = s->pb; 02290 int res = 0; 02291 int i; 02292 02293 int64_t moov_pos = avio_tell(pb); 02294 02295 /* Write size of mdat tag */ 02296 if (mov->mdat_size+8 <= UINT32_MAX) { 02297 avio_seek(pb, mov->mdat_pos, SEEK_SET); 02298 avio_wb32(pb, mov->mdat_size+8); 02299 } else { 02300 /* overwrite 'wide' placeholder atom */ 02301 avio_seek(pb, mov->mdat_pos - 8, SEEK_SET); 02302 avio_wb32(pb, 1); /* special value: real atom size will be 64 bit value after tag field */ 02303 ffio_wfourcc(pb, "mdat"); 02304 avio_wb64(pb, mov->mdat_size+16); 02305 } 02306 avio_seek(pb, moov_pos, SEEK_SET); 02307 02308 mov_write_moov_tag(pb, mov, s); 02309 02310 if (mov->chapter_track) 02311 av_freep(&mov->tracks[mov->chapter_track].enc); 02312 02313 for (i=0; i<mov->nb_streams; i++) { 02314 if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) 02315 ff_mov_close_hinting(&mov->tracks[i]); 02316 av_freep(&mov->tracks[i].cluster); 02317 02318 if(mov->tracks[i].vosLen) av_free(mov->tracks[i].vosData); 02319 02320 } 02321 02322 avio_flush(pb); 02323 02324 av_freep(&mov->tracks); 02325 02326 return res; 02327 } 02328 02329 #if CONFIG_MOV_MUXER 02330 AVOutputFormat ff_mov_muxer = { 02331 "mov", 02332 NULL_IF_CONFIG_SMALL("MOV format"), 02333 NULL, 02334 "mov", 02335 sizeof(MOVMuxContext), 02336 CODEC_ID_AAC, 02337 CODEC_ID_MPEG4, 02338 mov_write_header, 02339 ff_mov_write_packet, 02340 mov_write_trailer, 02341 .flags = AVFMT_GLOBALHEADER, 02342 .codec_tag = (const AVCodecTag* const []){codec_movvideo_tags, codec_movaudio_tags, 0}, 02343 .priv_class = &mov_muxer_class, 02344 }; 02345 #endif 02346 #if CONFIG_TGP_MUXER 02347 AVOutputFormat ff_tgp_muxer = { 02348 "3gp", 02349 NULL_IF_CONFIG_SMALL("3GP format"), 02350 NULL, 02351 "3gp", 02352 sizeof(MOVMuxContext), 02353 CODEC_ID_AMR_NB, 02354 CODEC_ID_H263, 02355 mov_write_header, 02356 ff_mov_write_packet, 02357 mov_write_trailer, 02358 .flags = AVFMT_GLOBALHEADER, 02359 .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0}, 02360 .priv_class = &mov_muxer_class, 02361 }; 02362 #endif 02363 #if CONFIG_MP4_MUXER 02364 AVOutputFormat ff_mp4_muxer = { 02365 "mp4", 02366 NULL_IF_CONFIG_SMALL("MP4 format"), 02367 "application/mp4", 02368 "mp4", 02369 sizeof(MOVMuxContext), 02370 CODEC_ID_AAC, 02371 CODEC_ID_MPEG4, 02372 mov_write_header, 02373 ff_mov_write_packet, 02374 mov_write_trailer, 02375 .flags = AVFMT_GLOBALHEADER, 02376 .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0}, 02377 .priv_class = &mov_muxer_class, 02378 }; 02379 #endif 02380 #if CONFIG_PSP_MUXER 02381 AVOutputFormat ff_psp_muxer = { 02382 "psp", 02383 NULL_IF_CONFIG_SMALL("PSP MP4 format"), 02384 NULL, 02385 "mp4,psp", 02386 sizeof(MOVMuxContext), 02387 CODEC_ID_AAC, 02388 CODEC_ID_MPEG4, 02389 mov_write_header, 02390 ff_mov_write_packet, 02391 mov_write_trailer, 02392 .flags = AVFMT_GLOBALHEADER, 02393 .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0}, 02394 .priv_class = &mov_muxer_class, 02395 }; 02396 #endif 02397 #if CONFIG_TG2_MUXER 02398 AVOutputFormat ff_tg2_muxer = { 02399 "3g2", 02400 NULL_IF_CONFIG_SMALL("3GP2 format"), 02401 NULL, 02402 "3g2", 02403 sizeof(MOVMuxContext), 02404 CODEC_ID_AMR_NB, 02405 CODEC_ID_H263, 02406 mov_write_header, 02407 ff_mov_write_packet, 02408 mov_write_trailer, 02409 .flags = AVFMT_GLOBALHEADER, 02410 .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0}, 02411 .priv_class = &mov_muxer_class, 02412 }; 02413 #endif 02414 #if CONFIG_IPOD_MUXER 02415 AVOutputFormat ff_ipod_muxer = { 02416 "ipod", 02417 NULL_IF_CONFIG_SMALL("iPod H.264 MP4 format"), 02418 "application/mp4", 02419 "m4v,m4a", 02420 sizeof(MOVMuxContext), 02421 CODEC_ID_AAC, 02422 CODEC_ID_H264, 02423 mov_write_header, 02424 ff_mov_write_packet, 02425 mov_write_trailer, 02426 .flags = AVFMT_GLOBALHEADER, 02427 .codec_tag = (const AVCodecTag* const []){codec_ipod_tags, 0}, 02428 .priv_class = &mov_muxer_class, 02429 }; 02430 #endif