falkTX
/
FFmpeg
mirror of https://github.com/falkTX/FFmpeg.git
1
0
Fork 0
Code Issues 0 Releases 338 Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
19597 Commits
32 Branches
322MB
Tree: 41e6499996
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '41e6499996'
${ noResults }
FFmpeg/libavformat/movenc.c

2025 lines
65KB
Raw Blame History 

  1. /*

  2.  * MOV, 3GP, MP4 muxer

  3.  * Copyright (c) 2003 Thomas Raivio

  4.  * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>

  5.  * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>

  6.  *

  7.  * This file is part of FFmpeg.

  8.  *

  9.  * FFmpeg is free software; you can redistribute it and/or

  10.  * modify it under the terms of the GNU Lesser General Public

  11.  * License as published by the Free Software Foundation; either

  12.  * version 2.1 of the License, or (at your option) any later version.

  13.  *

  14.  * FFmpeg is distributed in the hope that it will be useful,

  15.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  16.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  17.  * Lesser General Public License for more details.

  18.  *

  19.  * You should have received a copy of the GNU Lesser General Public

  20.  * License along with FFmpeg; if not, write to the Free Software

  21.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  22.  */

  23. 

  24. #include "avformat.h"

  25. #include "riff.h"

  26. #include "avio.h"

  27. #include "isom.h"

  28. #include "avc.h"

  29. #include "libavcodec/get_bits.h"

  30. #include "libavcodec/put_bits.h"

  31. 

  32. #undef NDEBUG

  33. #include <assert.h>

  34. 

  35. #define MOV_INDEX_CLUSTER_SIZE 16384

  36. #define globalTimescale 1000

  37. 

  38. #define MODE_MP4  0x01

  39. #define MODE_MOV  0x02

  40. #define MODE_3GP  0x04

  41. #define MODE_PSP  0x08 // example working PSP command line:

  42. // ffmpeg -i testinput.avi  -f psp -r 14.985 -s 320x240 -b 768 -ar 24000 -ab 32 M4V00001.MP4

  43. #define MODE_3G2  0x10

  44. #define MODE_IPOD 0x20

  45. 

  46. typedef struct MOVIentry {

  47.     unsigned int flags, size;

  48.     uint64_t     pos;

  49.     unsigned int samplesInChunk;

  50.     char         key_frame;

  51.     unsigned int entries;

  52.     int64_t      cts;

  53.     int64_t      dts;

  54. } MOVIentry;

  55. 

  56. typedef struct MOVIndex {

  57.     int         mode;

  58.     int         entry;

  59.     long        timescale;

  60.     long        time;

  61.     int64_t     trackDuration;

  62.     long        sampleCount;

  63.     long        sampleSize;

  64.     int         hasKeyframes;

  65.     int         hasBframes;

  66.     int         language;

  67.     int         trackID;

  68.     int         tag; ///< stsd fourcc

  69.     AVCodecContext *enc;

  70. 

  71.     int         vosLen;

  72.     uint8_t     *vosData;

  73.     MOVIentry   *cluster;

  74.     int         audio_vbr;

  75.     int         height; ///< active picture (w/o VBI) height for D-10/IMX

  76. } MOVTrack;

  77. 

  78. typedef struct MOVMuxContext {

  79.     int     mode;

  80.     int64_t time;

  81.     int     nb_streams;

  82.     int64_t mdat_pos;

  83.     uint64_t mdat_size;

  84.     long    timescale;

  85.     MOVTrack *tracks;

  86. } MOVMuxContext;

  87. 

  88. //FIXME support 64 bit variant with wide placeholders

  89. static int64_t updateSize(ByteIOContext *pb, int64_t pos)

  90. {

  91.     int64_t curpos = url_ftell(pb);

  92.     url_fseek(pb, pos, SEEK_SET);

  93.     put_be32(pb, curpos - pos); /* rewrite size */

  94.     url_fseek(pb, curpos, SEEK_SET);

  95. 

  96.     return curpos - pos;

  97. }

  98. 

  99. /* Chunk offset atom */

  100. static int mov_write_stco_tag(ByteIOContext *pb, MOVTrack *track)

  101. {

  102.     int i;

  103.     int mode64 = 0; //   use 32 bit size variant if possible

  104.     int64_t pos = url_ftell(pb);

  105.     put_be32(pb, 0); /* size */

  106.     if (pos > UINT32_MAX) {

  107.         mode64 = 1;

  108.         put_tag(pb, "co64");

  109.     } else

  110.         put_tag(pb, "stco");

  111.     put_be32(pb, 0); /* version & flags */

  112.     put_be32(pb, track->entry); /* entry count */

  113.     for (i=0; i<track->entry; i++) {

  114.         if(mode64 == 1)

  115.             put_be64(pb, track->cluster[i].pos);

  116.         else

  117.             put_be32(pb, track->cluster[i].pos);

  118.     }

  119.     return updateSize(pb, pos);

  120. }

  121. 

  122. /* Sample size atom */

  123. static int mov_write_stsz_tag(ByteIOContext *pb, MOVTrack *track)

  124. {

  125.     int equalChunks = 1;

  126.     int i, j, entries = 0, tst = -1, oldtst = -1;

  127. 

  128.     int64_t pos = url_ftell(pb);

  129.     put_be32(pb, 0); /* size */

  130.     put_tag(pb, "stsz");

  131.     put_be32(pb, 0); /* version & flags */

  132. 

  133.     for (i=0; i<track->entry; i++) {

  134.         tst = track->cluster[i].size/track->cluster[i].entries;

  135.         if(oldtst != -1 && tst != oldtst) {

  136.             equalChunks = 0;

  137.         }

  138.         oldtst = tst;

  139.         entries += track->cluster[i].entries;

  140.     }

  141.     if (equalChunks) {

  142.         int sSize = track->cluster[0].size/track->cluster[0].entries;

  143.         put_be32(pb, sSize); // sample size

  144.         put_be32(pb, entries); // sample count

  145.     }

  146.     else {

  147.         put_be32(pb, 0); // sample size

  148.         put_be32(pb, entries); // sample count

  149.         for (i=0; i<track->entry; i++) {

  150.             for (j=0; j<track->cluster[i].entries; j++) {

  151.                 put_be32(pb, track->cluster[i].size /

  152.                          track->cluster[i].entries);

  153.             }

  154.         }

  155.     }

  156.     return updateSize(pb, pos);

  157. }

  158. 

  159. /* Sample to chunk atom */

  160. static int mov_write_stsc_tag(ByteIOContext *pb, MOVTrack *track)

  161. {

  162.     int index = 0, oldval = -1, i;

  163.     int64_t entryPos, curpos;

  164. 

  165.     int64_t pos = url_ftell(pb);

  166.     put_be32(pb, 0); /* size */

  167.     put_tag(pb, "stsc");

  168.     put_be32(pb, 0); // version & flags

  169.     entryPos = url_ftell(pb);

  170.     put_be32(pb, track->entry); // entry count

  171.     for (i=0; i<track->entry; i++) {

  172.         if(oldval != track->cluster[i].samplesInChunk)

  173.         {

  174.             put_be32(pb, i+1); // first chunk

  175.             put_be32(pb, track->cluster[i].samplesInChunk); // samples per chunk

  176.             put_be32(pb, 0x1); // sample description index

  177.             oldval = track->cluster[i].samplesInChunk;

  178.             index++;

  179.         }

  180.     }

  181.     curpos = url_ftell(pb);

  182.     url_fseek(pb, entryPos, SEEK_SET);

  183.     put_be32(pb, index); // rewrite size

  184.     url_fseek(pb, curpos, SEEK_SET);

  185. 

  186.     return updateSize(pb, pos);

  187. }

  188. 

  189. /* Sync sample atom */

  190. static int mov_write_stss_tag(ByteIOContext *pb, MOVTrack *track)

  191. {

  192.     int64_t curpos, entryPos;

  193.     int i, index = 0;

  194.     int64_t pos = url_ftell(pb);

  195.     put_be32(pb, 0); // size

  196.     put_tag(pb, "stss");

  197.     put_be32(pb, 0); // version & flags

  198.     entryPos = url_ftell(pb);

  199.     put_be32(pb, track->entry); // entry count

  200.     for (i=0; i<track->entry; i++) {

  201.         if(track->cluster[i].key_frame == 1) {

  202.             put_be32(pb, i+1);

  203.             index++;

  204.         }

  205.     }

  206.     curpos = url_ftell(pb);

  207.     url_fseek(pb, entryPos, SEEK_SET);

  208.     put_be32(pb, index); // rewrite size

  209.     url_fseek(pb, curpos, SEEK_SET);

  210.     return updateSize(pb, pos);

  211. }

  212. 

  213. static int mov_write_amr_tag(ByteIOContext *pb, MOVTrack *track)

  214. {

  215.     put_be32(pb, 0x11); /* size */

  216.     if (track->mode == MODE_MOV) put_tag(pb, "samr");

  217.     else                         put_tag(pb, "damr");

  218.     put_tag(pb, "FFMP");

  219.     put_byte(pb, 0); /* decoder version */

  220. 

  221.     put_be16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */

  222.     put_byte(pb, 0x00); /* Mode change period (no restriction) */

  223.     put_byte(pb, 0x01); /* Frames per sample */

  224.     return 0x11;

  225. }

  226. 

  227. static int mov_write_ac3_tag(ByteIOContext *pb, MOVTrack *track)

  228. {

  229.     GetBitContext gbc;

  230.     PutBitContext pbc;

  231.     uint8_t buf[3];

  232.     int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;

  233. 

  234.     if (track->vosLen < 7)

  235.         return -1;

  236. 

  237.     put_be32(pb, 11);

  238.     put_tag(pb, "dac3");

  239. 

  240.     init_get_bits(&gbc, track->vosData+4, track->vosLen-4);

  241.     fscod      = get_bits(&gbc, 2);

  242.     frmsizecod = get_bits(&gbc, 6);

  243.     bsid       = get_bits(&gbc, 5);

  244.     bsmod      = get_bits(&gbc, 3);

  245.     acmod      = get_bits(&gbc, 3);

  246.     if (acmod == 2) {

  247.         skip_bits(&gbc, 2); // dsurmod

  248.     } else {

  249.         if ((acmod & 1) && acmod != 1)

  250.             skip_bits(&gbc, 2); // cmixlev

  251.         if (acmod & 4)

  252.             skip_bits(&gbc, 2); // surmixlev

  253.     }

  254.     lfeon = get_bits1(&gbc);

  255. 

  256.     init_put_bits(&pbc, buf, sizeof(buf));

  257.     put_bits(&pbc, 2, fscod);

  258.     put_bits(&pbc, 5, bsid);

  259.     put_bits(&pbc, 3, bsmod);

  260.     put_bits(&pbc, 3, acmod);

  261.     put_bits(&pbc, 1, lfeon);

  262.     put_bits(&pbc, 5, frmsizecod>>1); // bit_rate_code

  263.     put_bits(&pbc, 5, 0); // reserved

  264. 

  265.     flush_put_bits(&pbc);

  266.     put_buffer(pb, buf, sizeof(buf));

  267. 

  268.     return 11;

  269. }

  270. 

  271. /**

  272.  * This function writes extradata "as is".

  273.  * Extradata must be formated like a valid atom (with size and tag)

  274.  */

  275. static int mov_write_extradata_tag(ByteIOContext *pb, MOVTrack *track)

  276. {

  277.     put_buffer(pb, track->enc->extradata, track->enc->extradata_size);

  278.     return track->enc->extradata_size;

  279. }

  280. 

  281. static int mov_write_enda_tag(ByteIOContext *pb)

  282. {

  283.     put_be32(pb, 10);

  284.     put_tag(pb, "enda");

  285.     put_be16(pb, 1); /* little endian */

  286.     return 10;

  287. }

  288. 

  289. static unsigned int descrLength(unsigned int len)

  290. {

  291.     int i;

  292.     for(i=1; len>>(7*i); i++);

  293.     return len + 1 + i;

  294. }

  295. 

  296. static void putDescr(ByteIOContext *pb, int tag, unsigned int size)

  297. {

  298.     int i= descrLength(size) - size - 2;

  299.     put_byte(pb, tag);

  300.     for(; i>0; i--)

  301.         put_byte(pb, (size>>(7*i)) | 0x80);

  302.     put_byte(pb, size & 0x7F);

  303. }

  304. 

  305. static int mov_write_esds_tag(ByteIOContext *pb, MOVTrack *track) // Basic

  306. {

  307.     int64_t pos = url_ftell(pb);

  308.     int decoderSpecificInfoLen = track->vosLen ? descrLength(track->vosLen):0;

  309. 

  310.     put_be32(pb, 0); // size

  311.     put_tag(pb, "esds");

  312.     put_be32(pb, 0); // Version

  313. 

  314.     // ES descriptor

  315.     putDescr(pb, 0x03, 3 + descrLength(13 + decoderSpecificInfoLen) +

  316.              descrLength(1));

  317.     put_be16(pb, track->trackID);

  318.     put_byte(pb, 0x00); // flags (= no flags)

  319. 

  320.     // DecoderConfig descriptor

  321.     putDescr(pb, 0x04, 13 + decoderSpecificInfoLen);

  322. 

  323.     // Object type indication

  324.     if ((track->enc->codec_id == CODEC_ID_MP2 ||

  325.          track->enc->codec_id == CODEC_ID_MP3) &&

  326.         track->enc->sample_rate > 24000)

  327.         put_byte(pb, 0x6B); // 11172-3

  328.     else

  329.         put_byte(pb, codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));

  330. 

  331.     // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)

  332.     // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)

  333.     if(track->enc->codec_type == CODEC_TYPE_AUDIO)

  334.         put_byte(pb, 0x15); // flags (= Audiostream)

  335.     else

  336.         put_byte(pb, 0x11); // flags (= Visualstream)

  337. 

  338.     put_byte(pb,  track->enc->rc_buffer_size>>(3+16));    // Buffersize DB (24 bits)

  339.     put_be16(pb, (track->enc->rc_buffer_size>>3)&0xFFFF); // Buffersize DB

  340. 

  341.     put_be32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window)

  342.     if(track->enc->rc_max_rate != track->enc->rc_min_rate || track->enc->rc_min_rate==0)

  343.         put_be32(pb, 0); // vbr

  344.     else

  345.         put_be32(pb, track->enc->rc_max_rate); // avg bitrate

  346. 

  347.     if (track->vosLen) {

  348.         // DecoderSpecific info descriptor

  349.         putDescr(pb, 0x05, track->vosLen);

  350.         put_buffer(pb, track->vosData, track->vosLen);

  351.     }

  352. 

  353.     // SL descriptor

  354.     putDescr(pb, 0x06, 1);

  355.     put_byte(pb, 0x02);

  356.     return updateSize(pb, pos);

  357. }

  358. 

  359. static int mov_write_wave_tag(ByteIOContext *pb, MOVTrack *track)

  360. {

  361.     int64_t pos = url_ftell(pb);

  362. 

  363.     put_be32(pb, 0);     /* size */

  364.     put_tag(pb, "wave");

  365. 

  366.     put_be32(pb, 12);    /* size */

  367.     put_tag(pb, "frma");

  368.     put_le32(pb, track->tag);

  369. 

  370.     if (track->enc->codec_id == CODEC_ID_AAC) {

  371.         /* useless atom needed by mplayer, ipod, not needed by quicktime */

  372.         put_be32(pb, 12); /* size */

  373.         put_tag(pb, "mp4a");

  374.         put_be32(pb, 0);

  375.         mov_write_esds_tag(pb, track);

  376.     } else if (track->enc->codec_id == CODEC_ID_PCM_S24LE ||

  377.                track->enc->codec_id == CODEC_ID_PCM_S32LE) {

  378.         mov_write_enda_tag(pb);

  379.     } else if (track->enc->codec_id == CODEC_ID_AMR_NB) {

  380.         mov_write_amr_tag(pb, track);

  381.     } else if (track->enc->codec_id == CODEC_ID_AC3) {

  382.         mov_write_ac3_tag(pb, track);

  383.     } else if (track->enc->codec_id == CODEC_ID_ALAC) {

  384.         mov_write_extradata_tag(pb, track);

  385.     }

  386. 

  387.     put_be32(pb, 8);     /* size */

  388.     put_be32(pb, 0);     /* null tag */

  389. 

  390.     return updateSize(pb, pos);

  391. }

  392. 

  393. static int mov_write_glbl_tag(ByteIOContext *pb, MOVTrack *track)

  394. {

  395.     put_be32(pb, track->vosLen+8);

  396.     put_tag(pb, "glbl");

  397.     put_buffer(pb, track->vosData, track->vosLen);

  398.     return 8+track->vosLen;

  399. }

  400. 

  401. static int mov_write_audio_tag(ByteIOContext *pb, MOVTrack *track)

  402. {

  403.     int64_t pos = url_ftell(pb);

  404.     int version = track->mode == MODE_MOV &&

  405.         (track->audio_vbr ||

  406.          track->enc->codec_id == CODEC_ID_PCM_S32LE ||

  407.          track->enc->codec_id == CODEC_ID_PCM_S24LE);

  408. 

  409.     put_be32(pb, 0); /* size */

  410.     put_le32(pb, track->tag); // store it byteswapped

  411.     put_be32(pb, 0); /* Reserved */

  412.     put_be16(pb, 0); /* Reserved */

  413.     put_be16(pb, 1); /* Data-reference index, XXX  == 1 */

  414. 

  415.     /* SoundDescription */

  416.     put_be16(pb, version); /* Version */

  417.     put_be16(pb, 0); /* Revision level */

  418.     put_be32(pb, 0); /* Reserved */

  419. 

  420.     if (track->mode == MODE_MOV) {

  421.         put_be16(pb, track->enc->channels);

  422.         if (track->enc->codec_id == CODEC_ID_PCM_U8 ||

  423.             track->enc->codec_id == CODEC_ID_PCM_S8)

  424.             put_be16(pb, 8); /* bits per sample */

  425.         else

  426.             put_be16(pb, 16);

  427.         put_be16(pb, track->audio_vbr ? -2 : 0); /* compression ID */

  428.     } else { /* reserved for mp4/3gp */

  429.         put_be16(pb, 2);

  430.         put_be16(pb, 16);

  431.         put_be16(pb, 0);

  432.     }

  433. 

  434.     put_be16(pb, 0); /* packet size (= 0) */

  435.     put_be16(pb, track->timescale); /* Time scale */

  436.     put_be16(pb, 0); /* Reserved */

  437. 

  438.     if(version == 1) { /* SoundDescription V1 extended info */

  439.         put_be32(pb, track->enc->frame_size); /* Samples per packet */

  440.         put_be32(pb, track->sampleSize / track->enc->channels); /* Bytes per packet */

  441.         put_be32(pb, track->sampleSize); /* Bytes per frame */

  442.         put_be32(pb, 2); /* Bytes per sample */

  443.     }

  444. 

  445.     if(track->mode == MODE_MOV &&

  446.        (track->enc->codec_id == CODEC_ID_AAC ||

  447.         track->enc->codec_id == CODEC_ID_AC3 ||

  448.         track->enc->codec_id == CODEC_ID_AMR_NB ||

  449.         track->enc->codec_id == CODEC_ID_PCM_S24LE ||

  450.         track->enc->codec_id == CODEC_ID_PCM_S32LE ||

  451.         track->enc->codec_id == CODEC_ID_ALAC))

  452.         mov_write_wave_tag(pb, track);

  453.     else if(track->tag == MKTAG('m','p','4','a'))

  454.         mov_write_esds_tag(pb, track);

  455.     else if(track->enc->codec_id == CODEC_ID_AMR_NB)

  456.         mov_write_amr_tag(pb, track);

  457.     else if(track->enc->codec_id == CODEC_ID_AC3)

  458.         mov_write_ac3_tag(pb, track);

  459.     else if(track->enc->codec_id == CODEC_ID_ALAC)

  460.         mov_write_extradata_tag(pb, track);

  461.     else if(track->vosLen > 0)

  462.         mov_write_glbl_tag(pb, track);

  463. 

  464.     return updateSize(pb, pos);

  465. }

  466. 

  467. static int mov_write_d263_tag(ByteIOContext *pb)

  468. {

  469.     put_be32(pb, 0xf); /* size */

  470.     put_tag(pb, "d263");

  471.     put_tag(pb, "FFMP");

  472.     put_byte(pb, 0); /* decoder version */

  473.     /* FIXME use AVCodecContext level/profile, when encoder will set values */

  474.     put_byte(pb, 0xa); /* level */

  475.     put_byte(pb, 0); /* profile */

  476.     return 0xf;

  477. }

  478. 

  479. /* TODO: No idea about these values */

  480. static int mov_write_svq3_tag(ByteIOContext *pb)

  481. {

  482.     put_be32(pb, 0x15);

  483.     put_tag(pb, "SMI ");

  484.     put_tag(pb, "SEQH");

  485.     put_be32(pb, 0x5);

  486.     put_be32(pb, 0xe2c0211d);

  487.     put_be32(pb, 0xc0000000);

  488.     put_byte(pb, 0);

  489.     return 0x15;

  490. }

  491. 

  492. static int mov_write_avcc_tag(ByteIOContext *pb, MOVTrack *track)

  493. {

  494.     int64_t pos = url_ftell(pb);

  495. 

  496.     put_be32(pb, 0);

  497.     put_tag(pb, "avcC");

  498.     ff_isom_write_avcc(pb, track->vosData, track->vosLen);

  499.     return updateSize(pb, pos);

  500. }

  501. 

  502. /* also used by all avid codecs (dv, imx, meridien) and their variants */

  503. static int mov_write_avid_tag(ByteIOContext *pb, MOVTrack *track)

  504. {

  505.     int i;

  506.     put_be32(pb, 24); /* size */

  507.     put_tag(pb, "ACLR");

  508.     put_tag(pb, "ACLR");

  509.     put_tag(pb, "0001");

  510.     put_be32(pb, 1); /* yuv 1 / rgb 2 ? */

  511.     put_be32(pb, 0); /* unknown */

  512. 

  513.     put_be32(pb, 24); /* size */

  514.     put_tag(pb, "APRG");

  515.     put_tag(pb, "APRG");

  516.     put_tag(pb, "0001");

  517.     put_be32(pb, 1); /* unknown */

  518.     put_be32(pb, 0); /* unknown */

  519. 

  520.     put_be32(pb, 120); /* size */

  521.     put_tag(pb, "ARES");

  522.     put_tag(pb, "ARES");

  523.     put_tag(pb, "0001");

  524.     put_be32(pb, AV_RB32(track->vosData + 0x28)); /* dnxhd cid, some id ? */

  525.     put_be32(pb, track->enc->width);

  526.     /* values below are based on samples created with quicktime and avid codecs */

  527.     if (track->vosData[5] & 2) { // interlaced

  528.         put_be32(pb, track->enc->height/2);

  529.         put_be32(pb, 2); /* unknown */

  530.         put_be32(pb, 0); /* unknown */

  531.         put_be32(pb, 4); /* unknown */

  532.     } else {

  533.         put_be32(pb, track->enc->height);

  534.         put_be32(pb, 1); /* unknown */

  535.         put_be32(pb, 0); /* unknown */

  536.         if (track->enc->height == 1080)

  537.             put_be32(pb, 5); /* unknown */

  538.         else

  539.             put_be32(pb, 6); /* unknown */

  540.     }

  541.     /* padding */

  542.     for (i = 0; i < 10; i++)

  543.         put_be64(pb, 0);

  544. 

  545.     /* extra padding for stsd needed */

  546.     put_be32(pb, 0);

  547.     return 0;

  548. }

  549. 

  550. static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)

  551. {

  552.     int tag = track->enc->codec_tag;

  553. 

  554.     if (!codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))

  555.         return 0;

  556. 

  557.     if      (track->enc->codec_id == CODEC_ID_H264)      tag = MKTAG('a','v','c','1');

  558.     else if (track->enc->codec_id == CODEC_ID_AC3)       tag = MKTAG('a','c','-','3');

  559.     else if (track->enc->codec_id == CODEC_ID_DIRAC)     tag = MKTAG('d','r','a','c');

  560.     else if (track->enc->codec_id == CODEC_ID_MOV_TEXT)  tag = MKTAG('t','x','3','g');

  561.     else if (track->enc->codec_type == CODEC_TYPE_VIDEO) tag = MKTAG('m','p','4','v');

  562.     else if (track->enc->codec_type == CODEC_TYPE_AUDIO) tag = MKTAG('m','p','4','a');

  563. 

  564.     return tag;

  565. }

  566. 

  567. static const AVCodecTag codec_ipod_tags[] = {

  568.     { CODEC_ID_H264,   MKTAG('a','v','c','1') },

  569.     { CODEC_ID_MPEG4,  MKTAG('m','p','4','v') },

  570.     { CODEC_ID_AAC,    MKTAG('m','p','4','a') },

  571.     { CODEC_ID_ALAC,   MKTAG('a','l','a','c') },

  572.     { CODEC_ID_AC3,    MKTAG('a','c','-','3') },

  573.     { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },

  574.     { CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },

  575.     { CODEC_ID_NONE, 0 },

  576. };

  577. 

  578. static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)

  579. {

  580.     int tag = track->enc->codec_tag;

  581. 

  582.     // keep original tag for subs, ipod supports both formats

  583.     if (!(track->enc->codec_type == CODEC_TYPE_SUBTITLE &&

  584.         (tag == MKTAG('t','x','3','g') ||

  585.          tag == MKTAG('t','e','x','t'))))

  586.         tag = codec_get_tag(codec_ipod_tags, track->enc->codec_id);

  587. 

  588.     if (!match_ext(s->filename, "m4a") && !match_ext(s->filename, "m4v"))

  589.         av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "

  590.                "Quicktime/Ipod might not play the file\n");

  591. 

  592.     return tag;

  593. }

  594. 

  595. static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)

  596. {

  597.     int tag;

  598. 

  599.     if (track->enc->height == 480) /* NTSC */

  600.         if  (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');

  601.         else                                         tag = MKTAG('d','v','c',' ');

  602.     else if (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');

  603.     else if (track->enc->pix_fmt == PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');

  604.     else                                             tag = MKTAG('d','v','p','p');

  605. 

  606.     return tag;

  607. }

  608. 

  609. static const struct {

  610.     enum PixelFormat pix_fmt;

  611.     uint32_t tag;

  612.     unsigned bps;

  613. } mov_pix_fmt_tags[] = {

  614.     { PIX_FMT_YUYV422, MKTAG('y','u','v','s'),  0 },

  615.     { PIX_FMT_UYVY422, MKTAG('2','v','u','y'),  0 },

  616.     { PIX_FMT_BGR555,  MKTAG('r','a','w',' '), 16 },

  617.     { PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },

  618.     { PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },

  619.     { PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },

  620.     { PIX_FMT_RGB24,   MKTAG('r','a','w',' '), 24 },

  621.     { PIX_FMT_BGR24,   MKTAG('2','4','B','G'), 24 },

  622.     { PIX_FMT_ARGB,    MKTAG('r','a','w',' '), 32 },

  623.     { PIX_FMT_BGRA,    MKTAG('B','G','R','A'), 32 },

  624.     { PIX_FMT_RGBA,    MKTAG('R','G','B','A'), 32 },

  625. };

  626. 

  627. static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)

  628. {

  629.     int tag = track->enc->codec_tag;

  630.     int i;

  631. 

  632.     for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {

  633.         if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {

  634.             tag = mov_pix_fmt_tags[i].tag;

  635.             track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;

  636.             break;

  637.         }

  638.     }

  639. 

  640.     return tag;

  641. }

  642. 

  643. static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)

  644. {

  645.     int tag = track->enc->codec_tag;

  646. 

  647.     if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&

  648.                  (tag == MKTAG('d','v','c','p') ||

  649.                   track->enc->codec_id == CODEC_ID_RAWVIDEO ||

  650.                   av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio

  651.         if (track->enc->codec_id == CODEC_ID_DVVIDEO)

  652.             tag = mov_get_dv_codec_tag(s, track);

  653.         else if (track->enc->codec_id == CODEC_ID_RAWVIDEO)

  654.             tag = mov_get_rawvideo_codec_tag(s, track);

  655.         else if (track->enc->codec_type == CODEC_TYPE_VIDEO) {

  656.             tag = codec_get_tag(codec_movvideo_tags, track->enc->codec_id);

  657.             if (!tag) { // if no mac fcc found, try with Microsoft tags

  658.                 tag = codec_get_tag(codec_bmp_tags, track->enc->codec_id);

  659.                 if (tag)

  660.                     av_log(s, AV_LOG_INFO, "Warning, using MS style video codec tag, "

  661.                            "the file may be unplayable!\n");

  662.             }

  663.         } else if (track->enc->codec_type == CODEC_TYPE_AUDIO) {

  664.             tag = codec_get_tag(codec_movaudio_tags, track->enc->codec_id);

  665.             if (!tag) { // if no mac fcc found, try with Microsoft tags

  666.                 int ms_tag = codec_get_tag(codec_wav_tags, track->enc->codec_id);

  667.                 if (ms_tag) {

  668.                     tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));

  669.                     av_log(s, AV_LOG_INFO, "Warning, using MS style audio codec tag, "

  670.                            "the file may be unplayable!\n");

  671.                 }

  672.             }

  673.         } else if (track->enc->codec_type == CODEC_TYPE_SUBTITLE)

  674.             tag = codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);

  675.     }

  676. 

  677.     return tag;

  678. }

  679. 

  680. static const AVCodecTag codec_3gp_tags[] = {

  681.     { CODEC_ID_H263,   MKTAG('s','2','6','3') },

  682.     { CODEC_ID_H264,   MKTAG('a','v','c','1') },

  683.     { CODEC_ID_MPEG4,  MKTAG('m','p','4','v') },

  684.     { CODEC_ID_AAC,    MKTAG('m','p','4','a') },

  685.     { CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },

  686.     { CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },

  687.     { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },

  688.     { CODEC_ID_NONE, 0 },

  689. };

  690. 

  691. static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)

  692. {

  693.     int tag = track->enc->codec_tag;

  694. 

  695.     if (track->mode == MODE_MP4 || track->mode == MODE_PSP)

  696.         tag = mp4_get_codec_tag(s, track);

  697.     else if (track->mode == MODE_IPOD)

  698.         tag = ipod_get_codec_tag(s, track);

  699.     else if (track->mode & MODE_3GP)

  700.         tag = codec_get_tag(codec_3gp_tags, track->enc->codec_id);

  701.     else

  702.         tag = mov_get_codec_tag(s, track);

  703. 

  704.     return tag;

  705. }

  706. 

  707. /** Write uuid atom.

  708.  * Needed to make file play in iPods running newest firmware

  709.  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1

  710.  */

  711. static int mov_write_uuid_tag_ipod(ByteIOContext *pb)

  712. {

  713.     put_be32(pb, 28);

  714.     put_tag(pb, "uuid");

  715.     put_be32(pb, 0x6b6840f2);

  716.     put_be32(pb, 0x5f244fc5);

  717.     put_be32(pb, 0xba39a51b);

  718.     put_be32(pb, 0xcf0323f3);

  719.     put_be32(pb, 0x0);

  720.     return 28;

  721. }

  722. 

  723. static int mov_write_subtitle_tag(ByteIOContext *pb, MOVTrack *track)

  724. {

  725.     int64_t pos = url_ftell(pb);

  726.     put_be32(pb, 0);    /* size */

  727.     put_le32(pb, track->tag); // store it byteswapped

  728.     put_be32(pb, 0);    /* Reserved */

  729.     put_be16(pb, 0);    /* Reserved */

  730.     put_be16(pb, 1);    /* Data-reference index */

  731. 

  732.     if (track->enc->extradata_size)

  733.         put_buffer(pb, track->enc->extradata, track->enc->extradata_size);

  734. 

  735.     return updateSize(pb, pos);

  736. }

  737. 

  738. static int mov_write_video_tag(ByteIOContext *pb, MOVTrack *track)

  739. {

  740.     int64_t pos = url_ftell(pb);

  741.     char compressor_name[32];

  742. 

  743.     put_be32(pb, 0); /* size */

  744.     put_le32(pb, track->tag); // store it byteswapped

  745.     put_be32(pb, 0); /* Reserved */

  746.     put_be16(pb, 0); /* Reserved */

  747.     put_be16(pb, 1); /* Data-reference index */

  748. 

  749.     put_be16(pb, 0); /* Codec stream version */

  750.     put_be16(pb, 0); /* Codec stream revision (=0) */

  751.     if (track->mode == MODE_MOV) {

  752.         put_tag(pb, "FFMP"); /* Vendor */

  753.         if(track->enc->codec_id == CODEC_ID_RAWVIDEO) {

  754.             put_be32(pb, 0); /* Temporal Quality */

  755.             put_be32(pb, 0x400); /* Spatial Quality = lossless*/

  756.         } else {

  757.             put_be32(pb, 0x200); /* Temporal Quality = normal */

  758.             put_be32(pb, 0x200); /* Spatial Quality = normal */

  759.         }

  760.     } else {

  761.         put_be32(pb, 0); /* Reserved */

  762.         put_be32(pb, 0); /* Reserved */

  763.         put_be32(pb, 0); /* Reserved */

  764.     }

  765.     put_be16(pb, track->enc->width); /* Video width */

  766.     put_be16(pb, track->height); /* Video height */

  767.     put_be32(pb, 0x00480000); /* Horizontal resolution 72dpi */

  768.     put_be32(pb, 0x00480000); /* Vertical resolution 72dpi */

  769.     put_be32(pb, 0); /* Data size (= 0) */

  770.     put_be16(pb, 1); /* Frame count (= 1) */

  771. 

  772.     memset(compressor_name,0,32);

  773.     /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */

  774.     if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)

  775.         strncpy(compressor_name,track->enc->codec->name,31);

  776.     put_byte(pb, strlen(compressor_name));

  777.     put_buffer(pb, compressor_name, 31);

  778. 

  779.     if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)

  780.         put_be16(pb, track->enc->bits_per_coded_sample);

  781.     else

  782.         put_be16(pb, 0x18); /* Reserved */

  783.     put_be16(pb, 0xffff); /* Reserved */

  784.     if(track->tag == MKTAG('m','p','4','v'))

  785.         mov_write_esds_tag(pb, track);

  786.     else if(track->enc->codec_id == CODEC_ID_H263)

  787.         mov_write_d263_tag(pb);

  788.     else if(track->enc->codec_id == CODEC_ID_SVQ3)

  789.         mov_write_svq3_tag(pb);

  790.     else if(track->enc->codec_id == CODEC_ID_DNXHD)

  791.         mov_write_avid_tag(pb, track);

  792.     else if(track->enc->codec_id == CODEC_ID_H264) {

  793.         mov_write_avcc_tag(pb, track);

  794.         if(track->mode == MODE_IPOD)

  795.             mov_write_uuid_tag_ipod(pb);

  796.     } else if(track->vosLen > 0)

  797.         mov_write_glbl_tag(pb, track);

  798. 

  799.     return updateSize(pb, pos);

  800. }

  801. 

  802. static int mov_write_stsd_tag(ByteIOContext *pb, MOVTrack *track)

  803. {

  804.     int64_t pos = url_ftell(pb);

  805.     put_be32(pb, 0); /* size */

  806.     put_tag(pb, "stsd");

  807.     put_be32(pb, 0); /* version & flags */

  808.     put_be32(pb, 1); /* entry count */

  809.     if (track->enc->codec_type == CODEC_TYPE_VIDEO)

  810.         mov_write_video_tag(pb, track);

  811.     else if (track->enc->codec_type == CODEC_TYPE_AUDIO)

  812.         mov_write_audio_tag(pb, track);

  813.     else if (track->enc->codec_type == CODEC_TYPE_SUBTITLE)

  814.         mov_write_subtitle_tag(pb, track);

  815.     return updateSize(pb, pos);

  816. }

  817. 

  818. static int mov_write_ctts_tag(ByteIOContext *pb, MOVTrack *track)

  819. {

  820.     MOVStts *ctts_entries;

  821.     uint32_t entries = 0;

  822.     uint32_t atom_size;

  823.     int i;

  824. 

  825.     ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */

  826.     ctts_entries[0].count = 1;

  827.     ctts_entries[0].duration = track->cluster[0].cts;

  828.     for (i=1; i<track->entry; i++) {

  829.         if (track->cluster[i].cts == ctts_entries[entries].duration) {

  830.             ctts_entries[entries].count++; /* compress */

  831.         } else {

  832.             entries++;

  833.             ctts_entries[entries].duration = track->cluster[i].cts;

  834.             ctts_entries[entries].count = 1;

  835.         }

  836.     }

  837.     entries++; /* last one */

  838.     atom_size = 16 + (entries * 8);

  839.     put_be32(pb, atom_size); /* size */

  840.     put_tag(pb, "ctts");

  841.     put_be32(pb, 0); /* version & flags */

  842.     put_be32(pb, entries); /* entry count */

  843.     for (i=0; i<entries; i++) {

  844.         put_be32(pb, ctts_entries[i].count);

  845.         put_be32(pb, ctts_entries[i].duration);

  846.     }

  847.     av_free(ctts_entries);

  848.     return atom_size;

  849. }

  850. 

  851. /* Time to sample atom */

  852. static int mov_write_stts_tag(ByteIOContext *pb, MOVTrack *track)

  853. {

  854.     MOVStts *stts_entries;

  855.     uint32_t entries = -1;

  856.     uint32_t atom_size;

  857.     int i;

  858. 

  859.     if (track->enc->codec_type == CODEC_TYPE_AUDIO && !track->audio_vbr) {

  860.         stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */

  861.         stts_entries[0].count = track->sampleCount;

  862.         stts_entries[0].duration = 1;

  863.         entries = 1;

  864.     } else {

  865.         stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */

  866.         for (i=0; i<track->entry; i++) {

  867.             int64_t duration = i + 1 == track->entry ?

  868.                 track->trackDuration - track->cluster[i].dts + track->cluster[0].dts : /* readjusting */

  869.                 track->cluster[i+1].dts - track->cluster[i].dts;

  870.             if (i && duration == stts_entries[entries].duration) {

  871.                 stts_entries[entries].count++; /* compress */

  872.             } else {

  873.                 entries++;

  874.                 stts_entries[entries].duration = duration;

  875.                 stts_entries[entries].count = 1;

  876.             }

  877.         }

  878.         entries++; /* last one */

  879.     }

  880.     atom_size = 16 + (entries * 8);

  881.     put_be32(pb, atom_size); /* size */

  882.     put_tag(pb, "stts");

  883.     put_be32(pb, 0); /* version & flags */

  884.     put_be32(pb, entries); /* entry count */

  885.     for (i=0; i<entries; i++) {

  886.         put_be32(pb, stts_entries[i].count);

  887.         put_be32(pb, stts_entries[i].duration);

  888.     }

  889.     av_free(stts_entries);

  890.     return atom_size;

  891. }

  892. 

  893. static int mov_write_dref_tag(ByteIOContext *pb)

  894. {

  895.     put_be32(pb, 28); /* size */

  896.     put_tag(pb, "dref");

  897.     put_be32(pb, 0); /* version & flags */

  898.     put_be32(pb, 1); /* entry count */

  899. 

  900.     put_be32(pb, 0xc); /* size */

  901.     put_tag(pb, "url ");

  902.     put_be32(pb, 1); /* version & flags */

  903. 

  904.     return 28;

  905. }

  906. 

  907. static int mov_write_stbl_tag(ByteIOContext *pb, MOVTrack *track)

  908. {

  909.     int64_t pos = url_ftell(pb);

  910.     put_be32(pb, 0); /* size */

  911.     put_tag(pb, "stbl");

  912.     mov_write_stsd_tag(pb, track);

  913.     mov_write_stts_tag(pb, track);

  914.     if (track->enc->codec_type == CODEC_TYPE_VIDEO &&

  915.         track->hasKeyframes && track->hasKeyframes < track->entry)

  916.         mov_write_stss_tag(pb, track);

  917.     if (track->enc->codec_type == CODEC_TYPE_VIDEO &&

  918.         track->hasBframes)

  919.         mov_write_ctts_tag(pb, track);

  920.     mov_write_stsc_tag(pb, track);

  921.     mov_write_stsz_tag(pb, track);

  922.     mov_write_stco_tag(pb, track);

  923.     return updateSize(pb, pos);

  924. }

  925. 

  926. static int mov_write_dinf_tag(ByteIOContext *pb)

  927. {

  928.     int64_t pos = url_ftell(pb);

  929.     put_be32(pb, 0); /* size */

  930.     put_tag(pb, "dinf");

  931.     mov_write_dref_tag(pb);

  932.     return updateSize(pb, pos);

  933. }

  934. 

  935. static int mov_write_nmhd_tag(ByteIOContext *pb)

  936. {

  937.     put_be32(pb, 12);

  938.     put_tag(pb, "nmhd");

  939.     put_be32(pb, 0);

  940.     return 12;

  941. }

  942. 

  943. static int mov_write_gmhd_tag(ByteIOContext *pb)

  944. {

  945.     put_be32(pb, 0x20);   /* size */

  946.     put_tag(pb, "gmhd");

  947.     put_be32(pb, 0x18);   /* gmin size */

  948.     put_tag(pb, "gmin");  /* generic media info */

  949.     put_be32(pb, 0);      /* version & flags */

  950.     put_be16(pb, 0x40);   /* graphics mode = */

  951.     put_be16(pb, 0x8000); /* opColor (r?) */

  952.     put_be16(pb, 0x8000); /* opColor (g?) */

  953.     put_be16(pb, 0x8000); /* opColor (b?) */

  954.     put_be16(pb, 0);      /* balance */

  955.     put_be16(pb, 0);      /* reserved */

  956.     return 0x20;

  957. }

  958. 

  959. static int mov_write_smhd_tag(ByteIOContext *pb)

  960. {

  961.     put_be32(pb, 16); /* size */

  962.     put_tag(pb, "smhd");

  963.     put_be32(pb, 0); /* version & flags */

  964.     put_be16(pb, 0); /* reserved (balance, normally = 0) */

  965.     put_be16(pb, 0); /* reserved */

  966.     return 16;

  967. }

  968. 

  969. static int mov_write_vmhd_tag(ByteIOContext *pb)

  970. {

  971.     put_be32(pb, 0x14); /* size (always 0x14) */

  972.     put_tag(pb, "vmhd");

  973.     put_be32(pb, 0x01); /* version & flags */

  974.     put_be64(pb, 0); /* reserved (graphics mode = copy) */

  975.     return 0x14;

  976. }

  977. 

  978. static int mov_write_hdlr_tag(ByteIOContext *pb, MOVTrack *track)

  979. {

  980.     const char *hdlr, *descr = NULL, *hdlr_type = NULL;

  981.     int64_t pos = url_ftell(pb);

  982. 

  983.     if (!track) { /* no media --> data handler */

  984.         hdlr = "dhlr";

  985.         hdlr_type = "url ";

  986.         descr = "DataHandler";

  987.     } else {

  988.         hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";

  989.         if (track->enc->codec_type == CODEC_TYPE_VIDEO) {

  990.             hdlr_type = "vide";

  991.             descr = "VideoHandler";

  992.         } else if (track->enc->codec_type == CODEC_TYPE_AUDIO) {

  993.             hdlr_type = "soun";

  994.             descr = "SoundHandler";

  995.         } else if (track->enc->codec_type == CODEC_TYPE_SUBTITLE) {

  996.             if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";

  997.             else                                      hdlr_type = "text";

  998.             descr = "SubtitleHandler";

  999.         }

  1000.     }

  1001. 

  1002.     put_be32(pb, 0); /* size */

  1003.     put_tag(pb, "hdlr");

  1004.     put_be32(pb, 0); /* Version & flags */

  1005.     put_buffer(pb, hdlr, 4); /* handler */

  1006.     put_tag(pb, hdlr_type); /* handler type */

  1007.     put_be32(pb ,0); /* reserved */

  1008.     put_be32(pb ,0); /* reserved */

  1009.     put_be32(pb ,0); /* reserved */

  1010.     put_byte(pb, strlen(descr)); /* string counter */

  1011.     put_buffer(pb, descr, strlen(descr)); /* handler description */

  1012.     return updateSize(pb, pos);

  1013. }

  1014. 

  1015. static int mov_write_minf_tag(ByteIOContext *pb, MOVTrack *track)

  1016. {

  1017.     int64_t pos = url_ftell(pb);

  1018.     put_be32(pb, 0); /* size */

  1019.     put_tag(pb, "minf");

  1020.     if(track->enc->codec_type == CODEC_TYPE_VIDEO)

  1021.         mov_write_vmhd_tag(pb);

  1022.     else if (track->enc->codec_type == CODEC_TYPE_AUDIO)

  1023.         mov_write_smhd_tag(pb);

  1024.     else if (track->enc->codec_type == CODEC_TYPE_SUBTITLE) {

  1025.         if (track->tag == MKTAG('t','e','x','t')) mov_write_gmhd_tag(pb);

  1026.         else                                      mov_write_nmhd_tag(pb);

  1027.     }

  1028.     if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */

  1029.         mov_write_hdlr_tag(pb, NULL);

  1030.     mov_write_dinf_tag(pb);

  1031.     mov_write_stbl_tag(pb, track);

  1032.     return updateSize(pb, pos);

  1033. }

  1034. 

  1035. static int mov_write_mdhd_tag(ByteIOContext *pb, MOVTrack *track)

  1036. {

  1037.     int version = track->trackDuration < INT32_MAX ? 0 : 1;

  1038. 

  1039.     (version == 1) ? put_be32(pb, 44) : put_be32(pb, 32); /* size */

  1040.     put_tag(pb, "mdhd");

  1041.     put_byte(pb, version);

  1042.     put_be24(pb, 0); /* flags */

  1043.     if (version == 1) {

  1044.         put_be64(pb, track->time);

  1045.         put_be64(pb, track->time);

  1046.     } else {

  1047.         put_be32(pb, track->time); /* creation time */

  1048.         put_be32(pb, track->time); /* modification time */

  1049.     }

  1050.     put_be32(pb, track->timescale); /* time scale (sample rate for audio) */

  1051.     (version == 1) ? put_be64(pb, track->trackDuration) : put_be32(pb, track->trackDuration); /* duration */

  1052.     put_be16(pb, track->language); /* language */

  1053.     put_be16(pb, 0); /* reserved (quality) */

  1054. 

  1055.     if(version!=0 && track->mode == MODE_MOV){

  1056.         av_log(NULL, AV_LOG_ERROR,

  1057.             "FATAL error, file duration too long for timebase, this file will not be\n"

  1058.             "playable with quicktime. Choose a different timebase or a different\n"

  1059.             "container format\n");

  1060.     }

  1061. 

  1062.     return 32;

  1063. }

  1064. 

  1065. static int mov_write_mdia_tag(ByteIOContext *pb, MOVTrack *track)

  1066. {

  1067.     int64_t pos = url_ftell(pb);

  1068.     put_be32(pb, 0); /* size */

  1069.     put_tag(pb, "mdia");

  1070.     mov_write_mdhd_tag(pb, track);

  1071.     mov_write_hdlr_tag(pb, track);

  1072.     mov_write_minf_tag(pb, track);

  1073.     return updateSize(pb, pos);

  1074. }

  1075. 

  1076. static int mov_write_tkhd_tag(ByteIOContext *pb, MOVTrack *track, AVStream *st)

  1077. {

  1078.     int64_t duration = av_rescale_rnd(track->trackDuration, globalTimescale, track->timescale, AV_ROUND_UP);

  1079.     int version = duration < INT32_MAX ? 0 : 1;

  1080. 

  1081.     (version == 1) ? put_be32(pb, 104) : put_be32(pb, 92); /* size */

  1082.     put_tag(pb, "tkhd");

  1083.     put_byte(pb, version);

  1084.     put_be24(pb, 0xf); /* flags (track enabled) */

  1085.     if (version == 1) {

  1086.         put_be64(pb, track->time);

  1087.         put_be64(pb, track->time);

  1088.     } else {

  1089.         put_be32(pb, track->time); /* creation time */

  1090.         put_be32(pb, track->time); /* modification time */

  1091.     }

  1092.     put_be32(pb, track->trackID); /* track-id */

  1093.     put_be32(pb, 0); /* reserved */

  1094.     (version == 1) ? put_be64(pb, duration) : put_be32(pb, duration);

  1095. 

  1096.     put_be32(pb, 0); /* reserved */

  1097.     put_be32(pb, 0); /* reserved */

  1098.     put_be32(pb, 0x0); /* reserved (Layer & Alternate group) */

  1099.     /* Volume, only for audio */

  1100.     if(track->enc->codec_type == CODEC_TYPE_AUDIO)

  1101.         put_be16(pb, 0x0100);

  1102.     else

  1103.         put_be16(pb, 0);

  1104.     put_be16(pb, 0); /* reserved */

  1105. 

  1106.     /* Matrix structure */

  1107.     put_be32(pb, 0x00010000); /* reserved */

  1108.     put_be32(pb, 0x0); /* reserved */

  1109.     put_be32(pb, 0x0); /* reserved */

  1110.     put_be32(pb, 0x0); /* reserved */

  1111.     put_be32(pb, 0x00010000); /* reserved */

  1112.     put_be32(pb, 0x0); /* reserved */

  1113.     put_be32(pb, 0x0); /* reserved */

  1114.     put_be32(pb, 0x0); /* reserved */

  1115.     put_be32(pb, 0x40000000); /* reserved */

  1116. 

  1117.     /* Track width and height, for visual only */

  1118.     if(track->enc->codec_type == CODEC_TYPE_VIDEO ||

  1119.        track->enc->codec_type == CODEC_TYPE_SUBTITLE) {

  1120.         double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);

  1121.         if(!sample_aspect_ratio || track->height != track->enc->height)

  1122.             sample_aspect_ratio = 1;

  1123.         put_be32(pb, sample_aspect_ratio * track->enc->width*0x10000);

  1124.         put_be32(pb, track->height*0x10000);

  1125.     }

  1126.     else {

  1127.         put_be32(pb, 0);

  1128.         put_be32(pb, 0);

  1129.     }

  1130.     return 0x5c;

  1131. }

  1132. 

  1133. // This box seems important for the psp playback ... without it the movie seems to hang

  1134. static int mov_write_edts_tag(ByteIOContext *pb, MOVTrack *track)

  1135. {

  1136.     put_be32(pb, 0x24); /* size  */

  1137.     put_tag(pb, "edts");

  1138.     put_be32(pb, 0x1c); /* size  */

  1139.     put_tag(pb, "elst");

  1140.     put_be32(pb, 0x0);

  1141.     put_be32(pb, 0x1);

  1142. 

  1143.     put_be32(pb, av_rescale_rnd(track->trackDuration, globalTimescale, track->timescale, AV_ROUND_UP)); /* duration   ... doesn't seem to effect psp */

  1144. 

  1145.     put_be32(pb, track->cluster[0].cts); /* first pts is cts since dts is 0 */

  1146.     put_be32(pb, 0x00010000);

  1147.     return 0x24;

  1148. }

  1149. 

  1150. // goes at the end of each track!  ... Critical for PSP playback ("Incompatible data" without it)

  1151. static int mov_write_uuid_tag_psp(ByteIOContext *pb, MOVTrack *mov)

  1152. {

  1153.     put_be32(pb, 0x34); /* size ... reports as 28 in mp4box! */

  1154.     put_tag(pb, "uuid");

  1155.     put_tag(pb, "USMT");

  1156.     put_be32(pb, 0x21d24fce);

  1157.     put_be32(pb, 0xbb88695c);

  1158.     put_be32(pb, 0xfac9c740);

  1159.     put_be32(pb, 0x1c);     // another size here!

  1160.     put_tag(pb, "MTDT");

  1161.     put_be32(pb, 0x00010012);

  1162.     put_be32(pb, 0x0a);

  1163.     put_be32(pb, 0x55c40000);

  1164.     put_be32(pb, 0x1);

  1165.     put_be32(pb, 0x0);

  1166.     return 0x34;

  1167. }

  1168. 

  1169. static int mov_write_trak_tag(ByteIOContext *pb, MOVTrack *track, AVStream *st)

  1170. {

  1171.     int64_t pos = url_ftell(pb);

  1172.     put_be32(pb, 0); /* size */

  1173.     put_tag(pb, "trak");

  1174.     mov_write_tkhd_tag(pb, track, st);

  1175.     if (track->mode == MODE_PSP || track->hasBframes)

  1176.         mov_write_edts_tag(pb, track);  // PSP Movies require edts box

  1177.     mov_write_mdia_tag(pb, track);

  1178.     if (track->mode == MODE_PSP)

  1179.         mov_write_uuid_tag_psp(pb,track);  // PSP Movies require this uuid box

  1180.     return updateSize(pb, pos);

  1181. }

  1182. 

  1183. #if 0

  1184. /* TODO: Not sorted out, but not necessary either */

  1185. static int mov_write_iods_tag(ByteIOContext *pb, MOVMuxContext *mov)

  1186. {

  1187.     put_be32(pb, 0x15); /* size */

  1188.     put_tag(pb, "iods");

  1189.     put_be32(pb, 0);    /* version & flags */

  1190.     put_be16(pb, 0x1007);

  1191.     put_byte(pb, 0);

  1192.     put_be16(pb, 0x4fff);

  1193.     put_be16(pb, 0xfffe);

  1194.     put_be16(pb, 0x01ff);

  1195.     return 0x15;

  1196. }

  1197. #endif

  1198. 

  1199. static int mov_write_mvhd_tag(ByteIOContext *pb, MOVMuxContext *mov)

  1200. {

  1201.     int maxTrackID = 1, i;

  1202.     int64_t maxTrackLenTemp, maxTrackLen = 0;

  1203.     int version;

  1204. 

  1205.     for (i=0; i<mov->nb_streams; i++) {

  1206.         if(mov->tracks[i].entry > 0) {

  1207.             maxTrackLenTemp = av_rescale_rnd(mov->tracks[i].trackDuration, globalTimescale, mov->tracks[i].timescale, AV_ROUND_UP);

  1208.             if(maxTrackLen < maxTrackLenTemp)

  1209.                 maxTrackLen = maxTrackLenTemp;

  1210.             if(maxTrackID < mov->tracks[i].trackID)

  1211.                 maxTrackID = mov->tracks[i].trackID;

  1212.         }

  1213.     }

  1214. 

  1215.     version = maxTrackLen < UINT32_MAX ? 0 : 1;

  1216.     (version == 1) ? put_be32(pb, 120) : put_be32(pb, 108); /* size */

  1217.     put_tag(pb, "mvhd");

  1218.     put_byte(pb, version);

  1219.     put_be24(pb, 0); /* flags */

  1220.     if (version == 1) {

  1221.         put_be64(pb, mov->time);

  1222.         put_be64(pb, mov->time);

  1223.     } else {

  1224.         put_be32(pb, mov->time); /* creation time */

  1225.         put_be32(pb, mov->time); /* modification time */

  1226.     }

  1227.     put_be32(pb, mov->timescale); /* timescale */

  1228.     (version == 1) ? put_be64(pb, maxTrackLen) : put_be32(pb, maxTrackLen); /* duration of longest track */

  1229. 

  1230.     put_be32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */

  1231.     put_be16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */

  1232.     put_be16(pb, 0); /* reserved */

  1233.     put_be32(pb, 0); /* reserved */

  1234.     put_be32(pb, 0); /* reserved */

  1235. 

  1236.     /* Matrix structure */

  1237.     put_be32(pb, 0x00010000); /* reserved */

  1238.     put_be32(pb, 0x0); /* reserved */

  1239.     put_be32(pb, 0x0); /* reserved */

  1240.     put_be32(pb, 0x0); /* reserved */

  1241.     put_be32(pb, 0x00010000); /* reserved */

  1242.     put_be32(pb, 0x0); /* reserved */

  1243.     put_be32(pb, 0x0); /* reserved */

  1244.     put_be32(pb, 0x0); /* reserved */

  1245.     put_be32(pb, 0x40000000); /* reserved */

  1246. 

  1247.     put_be32(pb, 0); /* reserved (preview time) */

  1248.     put_be32(pb, 0); /* reserved (preview duration) */

  1249.     put_be32(pb, 0); /* reserved (poster time) */

  1250.     put_be32(pb, 0); /* reserved (selection time) */

  1251.     put_be32(pb, 0); /* reserved (selection duration) */

  1252.     put_be32(pb, 0); /* reserved (current time) */

  1253.     put_be32(pb, maxTrackID+1); /* Next track id */

  1254.     return 0x6c;

  1255. }

  1256. 

  1257. static int mov_write_itunes_hdlr_tag(ByteIOContext *pb, MOVMuxContext *mov,

  1258.                                      AVFormatContext *s)

  1259. {

  1260.     int64_t pos = url_ftell(pb);

  1261.     put_be32(pb, 0); /* size */

  1262.     put_tag(pb, "hdlr");

  1263.     put_be32(pb, 0);

  1264.     put_be32(pb, 0);

  1265.     put_tag(pb, "mdir");

  1266.     put_tag(pb, "appl");

  1267.     put_be32(pb, 0);

  1268.     put_be32(pb, 0);

  1269.     put_be16(pb, 0);

  1270.     return updateSize(pb, pos);

  1271. }

  1272. 

  1273. /* helper function to write a data tag with the specified string as data */

  1274. static int mov_write_string_data_tag(ByteIOContext *pb, const char *data, int lang, int long_style)

  1275. {

  1276.     if(long_style){

  1277.         int64_t pos = url_ftell(pb);

  1278.         put_be32(pb, 0); /* size */

  1279.         put_tag(pb, "data");

  1280.         put_be32(pb, 1);

  1281.         put_be32(pb, 0);

  1282.         put_buffer(pb, data, strlen(data));

  1283.         return updateSize(pb, pos);

  1284.     }else{

  1285.         put_be16(pb, strlen(data)); /* string length */

  1286.         put_be16(pb, lang);

  1287.         put_buffer(pb, data, strlen(data));

  1288.         return strlen(data) + 4;

  1289.     }

  1290. }

  1291. 

  1292. static int mov_write_string_tag(ByteIOContext *pb, const char *name, const char *value, int lang, int long_style){

  1293.     int size = 0;

  1294.     if (value && value[0]) {

  1295.         int64_t pos = url_ftell(pb);

  1296.         put_be32(pb, 0); /* size */

  1297.         put_tag(pb, name);

  1298.         mov_write_string_data_tag(pb, value, lang, long_style);

  1299.         size= updateSize(pb, pos);

  1300.     }

  1301.     return size;

  1302. }

  1303. 

  1304. static int mov_write_string_metadata(AVFormatContext *s, ByteIOContext *pb,

  1305.                                      const char *name, const char *tag,

  1306.                                      int long_style)

  1307. {

  1308.     int l, lang = 0, len, len2;

  1309.     AVMetadataTag *t, *t2 = NULL;

  1310.     char tag2[16];

  1311. 

  1312.     if (!(t = av_metadata_get(s->metadata, tag, NULL, 0)))

  1313.         return 0;

  1314. 

  1315.     len = strlen(t->key);

  1316.     snprintf(tag2, sizeof(tag2), "%s-", tag);

  1317.     while ((t2 = av_metadata_get(s->metadata, tag2, t2, AV_METADATA_IGNORE_SUFFIX))) {

  1318.         len2 = strlen(t2->key);

  1319.         if (len2 == len+4 && !strcmp(t->value, t2->value)

  1320.             && (l=ff_mov_iso639_to_lang(&t2->key[len2-3], 0)) >= 0) {

  1321.             lang = l;

  1322.             break;

  1323.         }

  1324.     }

  1325.     return mov_write_string_tag(pb, name, t->value, lang, long_style);

  1326. }

  1327. 

  1328. /* iTunes track number */

  1329. static int mov_write_trkn_tag(ByteIOContext *pb, MOVMuxContext *mov,

  1330.                               AVFormatContext *s)

  1331. {

  1332.     AVMetadataTag *t = av_metadata_get(s->metadata, "track", NULL, 0);

  1333.     int size = 0, track = t ? atoi(t->value) : 0;

  1334.     if (track) {

  1335.         int64_t pos = url_ftell(pb);

  1336.         put_be32(pb, 0); /* size */

  1337.         put_tag(pb, "trkn");

  1338.         {

  1339.             int64_t pos = url_ftell(pb);

  1340.             put_be32(pb, 0); /* size */

  1341.             put_tag(pb, "data");

  1342.             put_be32(pb, 0);        // 8 bytes empty

  1343.             put_be32(pb, 0);

  1344.             put_be16(pb, 0);        // empty

  1345.             put_be16(pb, track);    // track number

  1346.             put_be16(pb, 0);        // total track number

  1347.             put_be16(pb, 0);        // empty

  1348.             updateSize(pb, pos);

  1349.         }

  1350.         size = updateSize(pb, pos);

  1351.     }

  1352.     return size;

  1353. }

  1354. 

  1355. /* iTunes meta data list */

  1356. static int mov_write_ilst_tag(ByteIOContext *pb, MOVMuxContext *mov,

  1357.                               AVFormatContext *s)

  1358. {

  1359.     int64_t pos = url_ftell(pb);

  1360.     put_be32(pb, 0); /* size */

  1361.     put_tag(pb, "ilst");

  1362.     mov_write_string_metadata(s, pb, "\251nam", "title"    , 1);

  1363.     mov_write_string_metadata(s, pb, "\251ART", "author"   , 1);

  1364.     mov_write_string_metadata(s, pb, "\251wrt", "author"   , 1);

  1365.     mov_write_string_metadata(s, pb, "\251alb", "album"    , 1);

  1366.     mov_write_string_metadata(s, pb, "\251day", "year"     , 1);

  1367.     mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1);

  1368.     mov_write_string_metadata(s, pb, "\251cmt", "comment"  , 1);

  1369.     mov_write_string_metadata(s, pb, "\251gen", "genre"    , 1);

  1370.     mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);

  1371.     mov_write_trkn_tag(pb, mov, s);

  1372.     return updateSize(pb, pos);

  1373. }

  1374. 

  1375. /* iTunes meta data tag */

  1376. static int mov_write_meta_tag(ByteIOContext *pb, MOVMuxContext *mov,

  1377.                               AVFormatContext *s)

  1378. {

  1379.     int size = 0;

  1380.     int64_t pos = url_ftell(pb);

  1381.     put_be32(pb, 0); /* size */

  1382.     put_tag(pb, "meta");

  1383.     put_be32(pb, 0);

  1384.     mov_write_itunes_hdlr_tag(pb, mov, s);

  1385.     mov_write_ilst_tag(pb, mov, s);

  1386.     size = updateSize(pb, pos);

  1387.     return size;

  1388. }

  1389. 

  1390. static int utf8len(const uint8_t *b)

  1391. {

  1392.     int len=0;

  1393.     int val;

  1394.     while(*b){

  1395.         GET_UTF8(val, *b++, return -1;)

  1396.         len++;

  1397.     }

  1398.     return len;

  1399. }

  1400. 

  1401. static int ascii_to_wc(ByteIOContext *pb, const uint8_t *b)

  1402. {

  1403.     int val;

  1404.     while(*b){

  1405.         GET_UTF8(val, *b++, return -1;)

  1406.         put_be16(pb, val);

  1407.     }

  1408.     put_be16(pb, 0x00);

  1409.     return 0;

  1410. }

  1411. 

  1412. static uint16_t language_code(const char *str)

  1413. {

  1414.     return (((str[0]-0x60) & 0x1F) << 10) + (((str[1]-0x60) & 0x1F) << 5) + ((str[2]-0x60) & 0x1F);

  1415. }

  1416. 

  1417. static int mov_write_3gp_udta_tag(ByteIOContext *pb, AVFormatContext *s,

  1418.                                   const char *tag, const char *str)

  1419. {

  1420.     int64_t pos = url_ftell(pb);

  1421.     AVMetadataTag *t = av_metadata_get(s->metadata, str, NULL, 0);

  1422.     if (!t || !utf8len(t->value))

  1423.         return 0;

  1424.     put_be32(pb, 0);   /* size */

  1425.     put_tag (pb, tag); /* type */

  1426.     put_be32(pb, 0);   /* version + flags */

  1427.     if (!strcmp(tag, "yrrc"))

  1428.         put_be16(pb, atoi(t->value));

  1429.     else {

  1430.         put_be16(pb, language_code("eng")); /* language */

  1431.         ascii_to_wc(pb, t->value);

  1432.         if (!strcmp(tag, "albm") &&

  1433.             (t = av_metadata_get(s->metadata, "year", NULL, 0)))

  1434.             put_byte(pb, atoi(t->value));

  1435.     }

  1436.     return updateSize(pb, pos);

  1437. }

  1438. 

  1439. static int mov_write_udta_tag(ByteIOContext *pb, MOVMuxContext *mov,

  1440.                               AVFormatContext *s)

  1441. {

  1442.     ByteIOContext *pb_buf;

  1443.     int i, ret, size;

  1444.     uint8_t *buf;

  1445. 

  1446.     for (i = 0; i < s->nb_streams; i++)

  1447.         if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {

  1448.             return 0;

  1449.         }

  1450. 

  1451.     ret = url_open_dyn_buf(&pb_buf);

  1452.     if(ret < 0)

  1453.         return ret;

  1454. 

  1455.         if (mov->mode & MODE_3GP) {

  1456.             mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");

  1457.             mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");

  1458.             mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");

  1459.             mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");

  1460.             mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");

  1461.             mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");

  1462.             mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "year");

  1463.         } else if (mov->mode == MODE_MOV) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4

  1464.             mov_write_string_metadata(s, pb_buf, "\251nam", "title"      , 0);

  1465.             mov_write_string_metadata(s, pb_buf, "\251aut", "author"     , 0);

  1466.             mov_write_string_metadata(s, pb_buf, "\251alb", "album"      , 0);

  1467.             mov_write_string_metadata(s, pb_buf, "\251day", "year"       , 0);

  1468.             mov_write_string_tag(pb_buf, "\251enc", LIBAVFORMAT_IDENT, 0, 0);

  1469.             mov_write_string_metadata(s, pb_buf, "\251des", "comment"    , 0);

  1470.             mov_write_string_metadata(s, pb_buf, "\251gen", "genre"      , 0);

  1471.             mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright"  , 0);

  1472.         } else {

  1473.             /* iTunes meta data */

  1474.             mov_write_meta_tag(pb_buf, mov, s);

  1475.         }

  1476. 

  1477.     if ((size = url_close_dyn_buf(pb_buf, &buf)) > 0) {

  1478.         put_be32(pb, size+8);

  1479.         put_tag(pb, "udta");

  1480.         put_buffer(pb, buf, size);

  1481.         av_free(buf);

  1482.     }

  1483. 

  1484.     return 0;

  1485. }

  1486. 

  1487. static void mov_write_psp_udta_tag(ByteIOContext *pb,

  1488.                                   const char *str, const char *lang, int type)

  1489. {

  1490.     int len = utf8len(str)+1;

  1491.     if(len<=0)

  1492.         return;

  1493.     put_be16(pb, len*2+10);            /* size */

  1494.     put_be32(pb, type);                /* type */

  1495.     put_be16(pb, language_code(lang)); /* language */

  1496.     put_be16(pb, 0x01);                /* ? */

  1497.     ascii_to_wc(pb, str);

  1498. }

  1499. 

  1500. static int mov_write_uuidusmt_tag(ByteIOContext *pb, AVFormatContext *s)

  1501. {

  1502.     AVMetadataTag *title = av_metadata_get(s->metadata, "title", NULL, 0);

  1503.     int64_t pos, pos2;

  1504. 

  1505.     if (title) {

  1506.         pos = url_ftell(pb);

  1507.         put_be32(pb, 0); /* size placeholder*/

  1508.         put_tag(pb, "uuid");

  1509.         put_tag(pb, "USMT");

  1510.         put_be32(pb, 0x21d24fce); /* 96 bit UUID */

  1511.         put_be32(pb, 0xbb88695c);

  1512.         put_be32(pb, 0xfac9c740);

  1513. 

  1514.         pos2 = url_ftell(pb);

  1515.         put_be32(pb, 0); /* size placeholder*/

  1516.         put_tag(pb, "MTDT");

  1517.         put_be16(pb, 4);

  1518. 

  1519.         // ?

  1520.         put_be16(pb, 0x0C);                 /* size */

  1521.         put_be32(pb, 0x0B);                 /* type */

  1522.         put_be16(pb, language_code("und")); /* language */

  1523.         put_be16(pb, 0x0);                  /* ? */

  1524.         put_be16(pb, 0x021C);               /* data */

  1525. 

  1526.         mov_write_psp_udta_tag(pb, LIBAVCODEC_IDENT,      "eng", 0x04);

  1527.         mov_write_psp_udta_tag(pb, title->value,          "eng", 0x01);

  1528. //        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);

  1529.         mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);

  1530. 

  1531.         updateSize(pb, pos2);

  1532.         return updateSize(pb, pos);

  1533.     }

  1534. 

  1535.     return 0;

  1536. }

  1537. 

  1538. static int mov_write_moov_tag(ByteIOContext *pb, MOVMuxContext *mov,

  1539.                               AVFormatContext *s)

  1540. {

  1541.     int i;

  1542.     int64_t pos = url_ftell(pb);

  1543.     put_be32(pb, 0); /* size placeholder*/

  1544.     put_tag(pb, "moov");

  1545.     mov->timescale = globalTimescale;

  1546. 

  1547.     for (i=0; i<mov->nb_streams; i++) {

  1548.         if(mov->tracks[i].entry <= 0) continue;

  1549. 

  1550.         mov->tracks[i].time = mov->time;

  1551.         mov->tracks[i].trackID = i+1;

  1552.     }

  1553. 

  1554.     mov_write_mvhd_tag(pb, mov);

  1555.     //mov_write_iods_tag(pb, mov);

  1556.     for (i=0; i<mov->nb_streams; i++) {

  1557.         if(mov->tracks[i].entry > 0) {

  1558.             mov_write_trak_tag(pb, &(mov->tracks[i]), s->streams[i]);

  1559.         }

  1560.     }

  1561. 

  1562.     if (mov->mode == MODE_PSP)

  1563.         mov_write_uuidusmt_tag(pb, s);

  1564.     else

  1565.         mov_write_udta_tag(pb, mov, s);

  1566. 

  1567.     return updateSize(pb, pos);

  1568. }

  1569. 

  1570. static int mov_write_mdat_tag(ByteIOContext *pb, MOVMuxContext *mov)

  1571. {

  1572.     put_be32(pb, 8);    // placeholder for extended size field (64 bit)

  1573.     put_tag(pb, mov->mode == MODE_MOV ? "wide" : "free");

  1574. 

  1575.     mov->mdat_pos = url_ftell(pb);

  1576.     put_be32(pb, 0); /* size placeholder*/

  1577.     put_tag(pb, "mdat");

  1578.     return 0;

  1579. }

  1580. 

  1581. /* TODO: This needs to be more general */

  1582. static int mov_write_ftyp_tag(ByteIOContext *pb, AVFormatContext *s)

  1583. {

  1584.     MOVMuxContext *mov = s->priv_data;

  1585.     int64_t pos = url_ftell(pb);

  1586.     int has_h264 = 0, has_video = 0;

  1587.     int minor = 0x200;

  1588.     int i;

  1589. 

  1590.     for (i = 0; i < s->nb_streams; i++) {

  1591.         AVStream *st = s->streams[i];

  1592.         if (st->codec->codec_type == CODEC_TYPE_VIDEO)

  1593.             has_video = 1;

  1594.         if (st->codec->codec_id == CODEC_ID_H264)

  1595.             has_h264 = 1;

  1596.     }

  1597. 

  1598.     put_be32(pb, 0); /* size */

  1599.     put_tag(pb, "ftyp");

  1600. 

  1601.     if (mov->mode == MODE_3GP) {

  1602.         put_tag(pb, has_h264 ? "3gp6"  : "3gp4");

  1603.         minor =     has_h264 ?   0x100 :   0x200;

  1604.     } else if (mov->mode & MODE_3G2) {

  1605.         put_tag(pb, has_h264 ? "3g2b"  : "3g2a");

  1606.         minor =     has_h264 ? 0x20000 : 0x10000;

  1607.     }else if (mov->mode == MODE_PSP)

  1608.         put_tag(pb, "MSNV");

  1609.     else if (mov->mode == MODE_MP4)

  1610.         put_tag(pb, "isom");

  1611.     else if (mov->mode == MODE_IPOD)

  1612.         put_tag(pb, has_video ? "M4V ":"M4A ");

  1613.     else

  1614.         put_tag(pb, "qt  ");

  1615. 

  1616.     put_be32(pb, minor);

  1617. 

  1618.     if(mov->mode == MODE_MOV)

  1619.         put_tag(pb, "qt  ");

  1620.     else{

  1621.         put_tag(pb, "isom");

  1622.         put_tag(pb, "iso2");

  1623.         if(has_h264)

  1624.             put_tag(pb, "avc1");

  1625.     }

  1626. 

  1627.     if (mov->mode == MODE_3GP)

  1628.         put_tag(pb, has_h264 ? "3gp6":"3gp4");

  1629.     else if (mov->mode & MODE_3G2)

  1630.         put_tag(pb, has_h264 ? "3g2b":"3g2a");

  1631.     else if (mov->mode == MODE_PSP)

  1632.         put_tag(pb, "MSNV");

  1633.     else if (mov->mode == MODE_MP4)

  1634.         put_tag(pb, "mp41");

  1635.     return updateSize(pb, pos);

  1636. }

  1637. 

  1638. static void mov_write_uuidprof_tag(ByteIOContext *pb, AVFormatContext *s)

  1639. {

  1640.     AVCodecContext *VideoCodec = s->streams[0]->codec;

  1641.     AVCodecContext *AudioCodec = s->streams[1]->codec;

  1642.     int AudioRate = AudioCodec->sample_rate;

  1643.     int FrameRate = ((VideoCodec->time_base.den) * (0x10000))/ (VideoCodec->time_base.num);

  1644.     int audio_kbitrate= AudioCodec->bit_rate / 1000;

  1645.     int video_kbitrate= FFMIN(VideoCodec->bit_rate / 1000, 800 - audio_kbitrate);

  1646. 

  1647.     put_be32(pb, 0x94); /* size */

  1648.     put_tag(pb, "uuid");

  1649.     put_tag(pb, "PROF");

  1650. 

  1651.     put_be32(pb, 0x21d24fce); /* 96 bit UUID */

  1652.     put_be32(pb, 0xbb88695c);

  1653.     put_be32(pb, 0xfac9c740);

  1654. 

  1655.     put_be32(pb, 0x0);  /* ? */

  1656.     put_be32(pb, 0x3);  /* 3 sections ? */

  1657. 

  1658.     put_be32(pb, 0x14); /* size */

  1659.     put_tag(pb, "FPRF");

  1660.     put_be32(pb, 0x0);  /* ? */

  1661.     put_be32(pb, 0x0);  /* ? */

  1662.     put_be32(pb, 0x0);  /* ? */

  1663. 

  1664.     put_be32(pb, 0x2c);  /* size */

  1665.     put_tag(pb, "APRF");   /* audio */

  1666.     put_be32(pb, 0x0);

  1667.     put_be32(pb, 0x2);   /* TrackID */

  1668.     put_tag(pb, "mp4a");

  1669.     put_be32(pb, 0x20f);

  1670.     put_be32(pb, 0x0);

  1671.     put_be32(pb, audio_kbitrate);

  1672.     put_be32(pb, audio_kbitrate);

  1673.     put_be32(pb, AudioRate);

  1674.     put_be32(pb, AudioCodec->channels);

  1675. 

  1676.     put_be32(pb, 0x34);  /* size */

  1677.     put_tag(pb, "VPRF");   /* video */

  1678.     put_be32(pb, 0x0);

  1679.     put_be32(pb, 0x1);    /* TrackID */

  1680.     if (VideoCodec->codec_id == CODEC_ID_H264) {

  1681.         put_tag(pb, "avc1");

  1682.         put_be16(pb, 0x014D);

  1683.         put_be16(pb, 0x0015);

  1684.     } else {

  1685.         put_tag(pb, "mp4v");

  1686.         put_be16(pb, 0x0000);

  1687.         put_be16(pb, 0x0103);

  1688.     }

  1689.     put_be32(pb, 0x0);

  1690.     put_be32(pb, video_kbitrate);

  1691.     put_be32(pb, video_kbitrate);

  1692.     put_be32(pb, FrameRate);

  1693.     put_be32(pb, FrameRate);

  1694.     put_be16(pb, VideoCodec->width);

  1695.     put_be16(pb, VideoCodec->height);

  1696.     put_be32(pb, 0x010001); /* ? */

  1697. }

  1698. 

  1699. static int mov_write_header(AVFormatContext *s)

  1700. {

  1701.     ByteIOContext *pb = s->pb;

  1702.     MOVMuxContext *mov = s->priv_data;

  1703.     int i;

  1704. 

  1705.     if (url_is_streamed(s->pb)) {

  1706.         av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");

  1707.         return -1;

  1708.     }

  1709. 

  1710.     /* Default mode == MP4 */

  1711.     mov->mode = MODE_MP4;

  1712. 

  1713.     if (s->oformat != NULL) {

  1714.         if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;

  1715.         else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;

  1716.         else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;

  1717.         else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;

  1718.         else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;

  1719. 

  1720.         mov_write_ftyp_tag(pb,s);

  1721.         if (mov->mode == MODE_PSP) {

  1722.             if (s->nb_streams != 2) {

  1723.                 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");

  1724.                 return -1;

  1725.             }

  1726.             mov_write_uuidprof_tag(pb,s);

  1727.         }

  1728.     }

  1729. 

  1730.     mov->tracks = av_mallocz(s->nb_streams*sizeof(*mov->tracks));

  1731.     if (!mov->tracks)

  1732.         return AVERROR(ENOMEM);

  1733. 

  1734.     for(i=0; i<s->nb_streams; i++){

  1735.         AVStream *st= s->streams[i];

  1736.         MOVTrack *track= &mov->tracks[i];

  1737.         AVMetadataTag *lang = av_metadata_get(st->metadata, "language", NULL,0);

  1738. 

  1739.         track->enc = st->codec;

  1740.         track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);

  1741.         if (track->language < 0)

  1742.             track->language = 0;

  1743.         track->mode = mov->mode;

  1744.         track->tag = mov_find_codec_tag(s, track);

  1745.         if (!track->tag) {

  1746.             av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "

  1747.                    "codec not currently supported in container\n", i);

  1748.             goto error;

  1749.         }

  1750.         if(st->codec->codec_type == CODEC_TYPE_VIDEO){

  1751.             if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||

  1752.                 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||

  1753.                 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {

  1754.                 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {

  1755.                     av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");

  1756.                     goto error;

  1757.                 }

  1758.                 track->height = track->tag>>24 == 'n' ? 486 : 576;

  1759.             }

  1760.             track->timescale = st->codec->time_base.den;

  1761.             if (track->mode == MODE_MOV && track->timescale > 100000)

  1762.                 av_log(s, AV_LOG_WARNING,

  1763.                        "WARNING codec timebase is very high. If duration is too long,\n"

  1764.                        "file may not be playable by quicktime. Specify a shorter timebase\n"

  1765.                        "or choose different container.\n");

  1766.         }else if(st->codec->codec_type == CODEC_TYPE_AUDIO){

  1767.             track->timescale = st->codec->sample_rate;

  1768.             if(!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {

  1769.                 av_log(s, AV_LOG_ERROR, "track %d: codec frame size is not set\n", i);

  1770.                 goto error;

  1771.             }else if(st->codec->frame_size > 1){ /* assume compressed audio */

  1772.                 track->audio_vbr = 1;

  1773.             }else{

  1774.                 st->codec->frame_size = 1;

  1775.                 track->sampleSize = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;

  1776.             }

  1777.             if(track->mode != MODE_MOV &&

  1778.                track->enc->codec_id == CODEC_ID_MP3 && track->enc->sample_rate < 16000){

  1779.                 av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",

  1780.                        i, track->enc->sample_rate);

  1781.                 goto error;

  1782.             }

  1783.         }else if(st->codec->codec_type == CODEC_TYPE_SUBTITLE){

  1784.             track->timescale = st->codec->time_base.den;

  1785.         }

  1786.         if (!track->height)

  1787.             track->height = st->codec->height;

  1788. 

  1789.         av_set_pts_info(st, 64, 1, track->timescale);

  1790.     }

  1791. 

  1792.     mov_write_mdat_tag(pb, mov);

  1793.     mov->time = s->timestamp + 0x7C25B080; //1970 based -> 1904 based

  1794.     mov->nb_streams = s->nb_streams;

  1795. 

  1796.     put_flush_packet(pb);

  1797. 

  1798.     return 0;

  1799.  error:

  1800.     av_freep(&mov->tracks);

  1801.     return -1;

  1802. }

  1803. 

  1804. static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)

  1805. {

  1806.     MOVMuxContext *mov = s->priv_data;

  1807.     ByteIOContext *pb = s->pb;

  1808.     MOVTrack *trk = &mov->tracks[pkt->stream_index];

  1809.     AVCodecContext *enc = trk->enc;

  1810.     unsigned int samplesInChunk = 0;

  1811.     int size= pkt->size;

  1812. 

  1813.     if (url_is_streamed(s->pb)) return 0; /* Can't handle that */

  1814.     if (!size) return 0; /* Discard 0 sized packets */

  1815. 

  1816.     if (enc->codec_id == CODEC_ID_AMR_NB) {

  1817.         /* We must find out how many AMR blocks there are in one packet */

  1818.         static uint16_t packed_size[16] =

  1819.             {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 0};

  1820.         int len = 0;

  1821. 

  1822.         while (len < size && samplesInChunk < 100) {

  1823.             len += packed_size[(pkt->data[len] >> 3) & 0x0F];

  1824.             samplesInChunk++;

  1825.         }

  1826.         if(samplesInChunk > 1){

  1827.             av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n");

  1828.             return -1;

  1829.         }

  1830.     } else if (trk->sampleSize)

  1831.         samplesInChunk = size/trk->sampleSize;

  1832.     else

  1833.         samplesInChunk = 1;

  1834. 

  1835.     /* copy extradata if it exists */

  1836.     if (trk->vosLen == 0 && enc->extradata_size > 0) {

  1837.         trk->vosLen = enc->extradata_size;

  1838.         trk->vosData = av_malloc(trk->vosLen);

  1839.         memcpy(trk->vosData, enc->extradata, trk->vosLen);

  1840.     }

  1841. 

  1842.     if (enc->codec_id == CODEC_ID_H264 && trk->vosLen > 0 && *(uint8_t *)trk->vosData != 1) {

  1843.         /* from x264 or from bytestream h264 */

  1844.         /* nal reformating needed */

  1845.         size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);

  1846.     } else {

  1847.         put_buffer(pb, pkt->data, size);

  1848.     }

  1849. 

  1850.     if ((enc->codec_id == CODEC_ID_DNXHD ||

  1851.          enc->codec_id == CODEC_ID_AC3) && !trk->vosLen) {

  1852.         /* copy frame to create needed atoms */

  1853.         trk->vosLen = size;

  1854.         trk->vosData = av_malloc(size);

  1855.         if (!trk->vosData)

  1856.             return AVERROR(ENOMEM);

  1857.         memcpy(trk->vosData, pkt->data, size);

  1858.     }

  1859. 

  1860.     if (!(trk->entry % MOV_INDEX_CLUSTER_SIZE)) {

  1861.         trk->cluster = av_realloc(trk->cluster, (trk->entry + MOV_INDEX_CLUSTER_SIZE) * sizeof(*trk->cluster));

  1862.         if (!trk->cluster)

  1863.             return -1;

  1864.     }

  1865. 

  1866.     trk->cluster[trk->entry].pos = url_ftell(pb) - size;

  1867.     trk->cluster[trk->entry].samplesInChunk = samplesInChunk;

  1868.     trk->cluster[trk->entry].size = size;

  1869.     trk->cluster[trk->entry].entries = samplesInChunk;

  1870.     trk->cluster[trk->entry].dts = pkt->dts;

  1871.     trk->trackDuration = pkt->dts - trk->cluster[0].dts + pkt->duration;

  1872. 

  1873.     if (pkt->pts == AV_NOPTS_VALUE) {

  1874.         av_log(s, AV_LOG_WARNING, "pts has no value\n");

  1875.         pkt->pts = pkt->dts;

  1876.     }

  1877.     if (pkt->dts != pkt->pts)

  1878.         trk->hasBframes = 1;

  1879.     trk->cluster[trk->entry].cts = pkt->pts - pkt->dts;

  1880.     trk->cluster[trk->entry].key_frame = !!(pkt->flags & PKT_FLAG_KEY);

  1881.     if(trk->cluster[trk->entry].key_frame)

  1882.         trk->hasKeyframes++;

  1883.     trk->entry++;

  1884.     trk->sampleCount += samplesInChunk;

  1885.     mov->mdat_size += size;

  1886. 

  1887.     put_flush_packet(pb);

  1888.     return 0;

  1889. }

  1890. 

  1891. static int mov_write_trailer(AVFormatContext *s)

  1892. {

  1893.     MOVMuxContext *mov = s->priv_data;

  1894.     ByteIOContext *pb = s->pb;

  1895.     int res = 0;

  1896.     int i;

  1897. 

  1898.     int64_t moov_pos = url_ftell(pb);

  1899. 

  1900.     /* Write size of mdat tag */

  1901.     if (mov->mdat_size+8 <= UINT32_MAX) {

  1902.         url_fseek(pb, mov->mdat_pos, SEEK_SET);

  1903.         put_be32(pb, mov->mdat_size+8);

  1904.     } else {

  1905.         /* overwrite 'wide' placeholder atom */

  1906.         url_fseek(pb, mov->mdat_pos - 8, SEEK_SET);

  1907.         put_be32(pb, 1); /* special value: real atom size will be 64 bit value after tag field */

  1908.         put_tag(pb, "mdat");

  1909.         put_be64(pb, mov->mdat_size+16);

  1910.     }

  1911.     url_fseek(pb, moov_pos, SEEK_SET);

  1912. 

  1913.     mov_write_moov_tag(pb, mov, s);

  1914. 

  1915.     for (i=0; i<mov->nb_streams; i++) {

  1916.         av_freep(&mov->tracks[i].cluster);

  1917. 

  1918.         if(mov->tracks[i].vosLen) av_free(mov->tracks[i].vosData);

  1919. 

  1920.     }

  1921. 

  1922.     put_flush_packet(pb);

  1923. 

  1924.     av_freep(&mov->tracks);

  1925. 

  1926.     return res;

  1927. }

  1928. 

  1929. #if CONFIG_MOV_MUXER

  1930. AVOutputFormat mov_muxer = {

  1931.     "mov",

  1932.     NULL_IF_CONFIG_SMALL("MOV format"),

  1933.     NULL,

  1934.     "mov",

  1935.     sizeof(MOVMuxContext),

  1936.     CODEC_ID_AAC,

  1937.     CODEC_ID_MPEG4,

  1938.     mov_write_header,

  1939.     mov_write_packet,

  1940.     mov_write_trailer,

  1941.     .flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS,

  1942.     .codec_tag = (const AVCodecTag* const []){codec_movvideo_tags, codec_movaudio_tags, 0},

  1943. };

  1944. #endif

  1945. #if CONFIG_TGP_MUXER

  1946. AVOutputFormat tgp_muxer = {

  1947.     "3gp",

  1948.     NULL_IF_CONFIG_SMALL("3GP format"),

  1949.     NULL,

  1950.     "3gp",

  1951.     sizeof(MOVMuxContext),

  1952.     CODEC_ID_AMR_NB,

  1953.     CODEC_ID_H263,

  1954.     mov_write_header,

  1955.     mov_write_packet,

  1956.     mov_write_trailer,

  1957.     .flags = AVFMT_GLOBALHEADER,

  1958.     .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},

  1959. };

  1960. #endif

  1961. #if CONFIG_MP4_MUXER

  1962. AVOutputFormat mp4_muxer = {

  1963.     "mp4",

  1964.     NULL_IF_CONFIG_SMALL("MP4 format"),

  1965.     "application/mp4",

  1966.     "mp4",

  1967.     sizeof(MOVMuxContext),

  1968.     CODEC_ID_AAC,

  1969.     CODEC_ID_MPEG4,

  1970.     mov_write_header,

  1971.     mov_write_packet,

  1972.     mov_write_trailer,

  1973.     .flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS,

  1974.     .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},

  1975. };

  1976. #endif

  1977. #if CONFIG_PSP_MUXER

  1978. AVOutputFormat psp_muxer = {

  1979.     "psp",

  1980.     NULL_IF_CONFIG_SMALL("PSP MP4 format"),

  1981.     NULL,

  1982.     "mp4,psp",

  1983.     sizeof(MOVMuxContext),

  1984.     CODEC_ID_AAC,

  1985.     CODEC_ID_MPEG4,

  1986.     mov_write_header,

  1987.     mov_write_packet,

  1988.     mov_write_trailer,

  1989.     .flags = AVFMT_GLOBALHEADER,

  1990.     .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},

  1991. };

  1992. #endif

  1993. #if CONFIG_TG2_MUXER

  1994. AVOutputFormat tg2_muxer = {

  1995.     "3g2",

  1996.     NULL_IF_CONFIG_SMALL("3GP2 format"),

  1997.     NULL,

  1998.     "3g2",

  1999.     sizeof(MOVMuxContext),

  2000.     CODEC_ID_AMR_NB,

  2001.     CODEC_ID_H263,

  2002.     mov_write_header,

  2003.     mov_write_packet,

  2004.     mov_write_trailer,

  2005.     .flags = AVFMT_GLOBALHEADER,

  2006.     .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},

  2007. };

  2008. #endif

  2009. #if CONFIG_IPOD_MUXER

  2010. AVOutputFormat ipod_muxer = {

  2011.     "ipod",

  2012.     NULL_IF_CONFIG_SMALL("iPod H.264 MP4 format"),

  2013.     "application/mp4",

  2014.     "m4v,m4a",

  2015.     sizeof(MOVMuxContext),

  2016.     CODEC_ID_AAC,

  2017.     CODEC_ID_H264,

  2018.     mov_write_header,

  2019.     mov_write_packet,

  2020.     mov_write_trailer,

  2021.     .flags = AVFMT_GLOBALHEADER,

  2022.     .codec_tag = (const AVCodecTag* const []){codec_ipod_tags, 0},

  2023. };

  2024. #endif