/*

  * MOV, 3GP, MP4 muxer

  * Copyright (c) 2003 Thomas Raivio
  * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>

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

  *

  * This file is part of FFmpeg.
  *
  * FFmpeg is free software; you can redistribute it and/or

  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either

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

  *

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

  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public

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

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

  */

 #include "movenc.h"

 #include "avformat.h"

 #include "avio_internal.h"

 #include "riff.h"

 #include "avio.h"

 #include "isom.h"

 #include "avc.h"

 #include "libavcodec/get_bits.h"

 #include "libavcodec/put_bits.h"

 #include "internal.h"
 #include "libavutil/avstring.h"

 #include "libavutil/opt.h"

 #include "libavutil/dict.h"

 #include "rtpenc.h"

 #undef NDEBUG
 #include <assert.h>
 

 static const AVOption options[] = {

     { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), FF_OPT_TYPE_FLAGS, {.dbl = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
     { "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" },

     FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),

     { NULL },
 };
 
 static const AVClass mov_muxer_class = {
     .class_name = "MOV/3GP/MP4/3G2 muxer",
     .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
 };
 

 //FIXME support 64 bit variant with wide placeholders

 static int64_t updateSize(AVIOContext *pb, int64_t pos)

 {

     int64_t curpos = avio_tell(pb);

     avio_seek(pb, pos, SEEK_SET);

     avio_wb32(pb, curpos - pos); /* rewrite size */

     avio_seek(pb, curpos, SEEK_SET);

 
     return curpos - pos;

 }
 

 /* Chunk offset atom */

 static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)

 {
     int i;

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

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size */

     if (pos > UINT32_MAX) {
         mode64 = 1;

         ffio_wfourcc(pb, "co64");

     } else

         ffio_wfourcc(pb, "stco");

     avio_wb32(pb, 0); /* version & flags */
     avio_wb32(pb, track->entry); /* entry count */

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

         if(mode64 == 1)

             avio_wb64(pb, track->cluster[i].pos);

         else

             avio_wb32(pb, track->cluster[i].pos);

     }

     return updateSize(pb, pos);

 }
 

 /* Sample size atom */

 static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)

 {

     int equalChunks = 1;

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

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "stsz");

     avio_wb32(pb, 0); /* version & flags */

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

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

         if(oldtst != -1 && tst != oldtst) {
             equalChunks = 0;

         }
         oldtst = tst;

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

     }

     if (equalChunks) {

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

         sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0

         avio_wb32(pb, sSize); // sample size
         avio_wb32(pb, entries); // sample count

     }

     else {

         avio_wb32(pb, 0); // sample size
         avio_wb32(pb, entries); // sample count

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

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

                 avio_wb32(pb, track->cluster[i].size /

                          track->cluster[i].entries);

             }

         }
     }

     return updateSize(pb, pos);

 }
 

 /* Sample to chunk atom */

 static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)

 {

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

     int64_t entryPos, curpos;

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "stsc");

     avio_wb32(pb, 0); // version & flags

     entryPos = avio_tell(pb);

     avio_wb32(pb, track->entry); // entry count

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

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

         {

             avio_wb32(pb, i+1); // first chunk
             avio_wb32(pb, track->cluster[i].samplesInChunk); // samples per chunk
             avio_wb32(pb, 0x1); // sample description index

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

             index++;

         }
     }

     curpos = avio_tell(pb);

     avio_seek(pb, entryPos, SEEK_SET);

     avio_wb32(pb, index); // rewrite size

     avio_seek(pb, curpos, SEEK_SET);

     return updateSize(pb, pos);

 }
 

 /* Sync sample atom */

 static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)

 {

     int64_t curpos, entryPos;

     int i, index = 0;

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); // size

     ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");

     avio_wb32(pb, 0); // version & flags

     entryPos = avio_tell(pb);

     avio_wb32(pb, track->entry); // entry count

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

         if (track->cluster[i].flags & flag) {

             avio_wb32(pb, i+1);

             index++;
         }
     }

     curpos = avio_tell(pb);

     avio_seek(pb, entryPos, SEEK_SET);

     avio_wb32(pb, index); // rewrite size

     avio_seek(pb, curpos, SEEK_SET);

     return updateSize(pb, pos);

 }
 

 static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)

 {

     avio_wb32(pb, 0x11); /* size */

     if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
     else                         ffio_wfourcc(pb, "damr");
     ffio_wfourcc(pb, "FFMP");

     avio_w8(pb, 0); /* decoder version */

     avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
     avio_w8(pb, 0x00); /* Mode change period (no restriction) */
     avio_w8(pb, 0x01); /* Frames per sample */

     return 0x11;
 }
 

 static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)

 {
     GetBitContext gbc;
     PutBitContext pbc;
     uint8_t buf[3];
     int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
 
     if (track->vosLen < 7)
         return -1;
 

     avio_wb32(pb, 11);

     ffio_wfourcc(pb, "dac3");

     init_get_bits(&gbc, track->vosData+4, (track->vosLen-4) * 8);

     fscod      = get_bits(&gbc, 2);
     frmsizecod = get_bits(&gbc, 6);
     bsid       = get_bits(&gbc, 5);
     bsmod      = get_bits(&gbc, 3);
     acmod      = get_bits(&gbc, 3);
     if (acmod == 2) {
         skip_bits(&gbc, 2); // dsurmod
     } else {
         if ((acmod & 1) && acmod != 1)
             skip_bits(&gbc, 2); // cmixlev
         if (acmod & 4)
             skip_bits(&gbc, 2); // surmixlev
     }
     lfeon = get_bits1(&gbc);
 
     init_put_bits(&pbc, buf, sizeof(buf));
     put_bits(&pbc, 2, fscod);
     put_bits(&pbc, 5, bsid);
     put_bits(&pbc, 3, bsmod);
     put_bits(&pbc, 3, acmod);
     put_bits(&pbc, 1, lfeon);
     put_bits(&pbc, 5, frmsizecod>>1); // bit_rate_code
     put_bits(&pbc, 5, 0); // reserved
 
     flush_put_bits(&pbc);

     avio_write(pb, buf, sizeof(buf));

 
     return 11;
 }
 

 /**
  * This function writes extradata "as is".
  * Extradata must be formated like a valid atom (with size and tag)
  */

 static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)

 {

     avio_write(pb, track->enc->extradata, track->enc->extradata_size);

     return track->enc->extradata_size;
 }
 

 static int mov_write_enda_tag(AVIOContext *pb)

 {

     avio_wb32(pb, 10);

     ffio_wfourcc(pb, "enda");

     avio_wb16(pb, 1); /* little endian */

     return 10;
 }
 

 static void putDescr(AVIOContext *pb, int tag, unsigned int size)

 {

     int i = 3;

     avio_w8(pb, tag);

     for(; i>0; i--)

         avio_w8(pb, (size>>(7*i)) | 0x80);
     avio_w8(pb, size & 0x7F);

 }
 

 static unsigned compute_avg_bitrate(MOVTrack *track)
 {
     uint64_t size = 0;
     int i;
     for (i = 0; i < track->entry; i++)
         size += track->cluster[i].size;
     return size * 8 * track->timescale / track->trackDuration;
 }
 

 static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic

 {

     int64_t pos = avio_tell(pb);

     int decoderSpecificInfoLen = track->vosLen ? 5+track->vosLen : 0;

     unsigned avg_bitrate;

     avio_wb32(pb, 0); // size

     ffio_wfourcc(pb, "esds");

     avio_wb32(pb, 0); // Version

 
     // ES descriptor

     putDescr(pb, 0x03, 3 + 5+13 + decoderSpecificInfoLen + 5+1);

     avio_wb16(pb, track->trackID);
     avio_w8(pb, 0x00); // flags (= no flags)

 
     // DecoderConfig descriptor
     putDescr(pb, 0x04, 13 + decoderSpecificInfoLen);
 
     // Object type indication

     if ((track->enc->codec_id == CODEC_ID_MP2 ||
          track->enc->codec_id == CODEC_ID_MP3) &&

         track->enc->sample_rate > 24000)

         avio_w8(pb, 0x6B); // 11172-3

     else

         avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));

 
     // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
     // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)

     if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)

         avio_w8(pb, 0x15); // flags (= Audiostream)

     else

         avio_w8(pb, 0x11); // flags (= Visualstream)

     avio_w8(pb,  track->enc->rc_buffer_size>>(3+16));      // Buffersize DB (24 bits)
     avio_wb16(pb, (track->enc->rc_buffer_size>>3)&0xFFFF); // Buffersize DB

     avg_bitrate = compute_avg_bitrate(track);
     // maxbitrate (FIXME should be max rate in any 1 sec window)
     avio_wb32(pb, FFMAX3(track->enc->bit_rate, track->enc->rc_max_rate, avg_bitrate));
     avio_wb32(pb, avg_bitrate);

     if (track->vosLen) {

         // DecoderSpecific info descriptor
         putDescr(pb, 0x05, track->vosLen);

         avio_write(pb, track->vosData, track->vosLen);

     }
 
     // SL descriptor
     putDescr(pb, 0x06, 1);

     avio_w8(pb, 0x02);

     return updateSize(pb, pos);

 }
 

 static int mov_pcm_le_gt16(enum CodecID codec_id)
 {
     return codec_id == CODEC_ID_PCM_S24LE ||
            codec_id == CODEC_ID_PCM_S32LE ||
            codec_id == CODEC_ID_PCM_F32LE ||
            codec_id == CODEC_ID_PCM_F64LE;
 }
 

 static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)

 {

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0);
     avio_wl32(pb, track->tag); // store it byteswapped

     track->enc->codec_tag = av_bswap16(track->tag >> 16);

     ff_put_wav_header(pb, track->enc);
     return updateSize(pb, pos);
 }
 

 static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)

 {

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0);     /* size */

     ffio_wfourcc(pb, "wave");

     avio_wb32(pb, 12);    /* size */

     ffio_wfourcc(pb, "frma");

     avio_wl32(pb, track->tag);

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

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

         avio_wb32(pb, 12); /* size */

         ffio_wfourcc(pb, "mp4a");

         avio_wb32(pb, 0);

         mov_write_esds_tag(pb, track);

     } else if (mov_pcm_le_gt16(track->enc->codec_id)) {

         mov_write_enda_tag(pb);

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

         mov_write_amr_tag(pb, track);

     } else if (track->enc->codec_id == CODEC_ID_AC3) {
         mov_write_ac3_tag(pb, track);

     } else if (track->enc->codec_id == CODEC_ID_ALAC) {
         mov_write_extradata_tag(pb, track);

     } else if (track->enc->codec_id == CODEC_ID_ADPCM_MS ||
                track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
         mov_write_ms_tag(pb, track);

     }

     avio_wb32(pb, 8);     /* size */
     avio_wb32(pb, 0);     /* null tag */

     return updateSize(pb, pos);

 }
 

 static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)

 {

     avio_wb32(pb, track->vosLen+8);

     ffio_wfourcc(pb, "glbl");

     avio_write(pb, track->vosData, track->vosLen);

     return 8+track->vosLen;
 }
 

 /**
  * Compute flags for 'lpcm' tag.
  * See CoreAudioTypes and AudioStreamBasicDescription at Apple.
  */
 static int mov_get_lpcm_flags(enum CodecID codec_id)
 {
     switch (codec_id) {
     case CODEC_ID_PCM_F32BE:
     case CODEC_ID_PCM_F64BE:
         return 11;
     case CODEC_ID_PCM_F32LE:
     case CODEC_ID_PCM_F64LE:
         return 9;
     case CODEC_ID_PCM_U8:
         return 10;
     case CODEC_ID_PCM_S16BE:
     case CODEC_ID_PCM_S24BE:
     case CODEC_ID_PCM_S32BE:
         return 14;
     case CODEC_ID_PCM_S8:
     case CODEC_ID_PCM_S16LE:
     case CODEC_ID_PCM_S24LE:
     case CODEC_ID_PCM_S32LE:
         return 12;
     default:
         return 0;
     }
 }
 

 static int mov_write_audio_tag(AVIOContext *pb, MOVTrack *track)

 {

     int64_t pos = avio_tell(pb);

     int version = 0;
     uint32_t tag = track->tag;
 
     if (track->mode == MODE_MOV) {
         if (track->timescale > UINT16_MAX) {
             if (mov_get_lpcm_flags(track->enc->codec_id))
                 tag = AV_RL32("lpcm");
             version = 2;

         } else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
                    track->enc->codec_id == CODEC_ID_ADPCM_MS ||
                    track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {

             version = 1;
         }
     }

     avio_wb32(pb, 0); /* size */
     avio_wl32(pb, tag); // store it byteswapped
     avio_wb32(pb, 0); /* Reserved */
     avio_wb16(pb, 0); /* Reserved */
     avio_wb16(pb, 1); /* Data-reference index, XXX  == 1 */

     /* SoundDescription */

     avio_wb16(pb, version); /* Version */
     avio_wb16(pb, 0); /* Revision level */
     avio_wb32(pb, 0); /* Reserved */

     if (version == 2) {

         avio_wb16(pb, 3);
         avio_wb16(pb, 16);
         avio_wb16(pb, 0xfffe);
         avio_wb16(pb, 0);
         avio_wb32(pb, 0x00010000);
         avio_wb32(pb, 72);
         avio_wb64(pb, av_dbl2int(track->timescale));
         avio_wb32(pb, track->enc->channels);
         avio_wb32(pb, 0x7F000000);
         avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
         avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
         avio_wb32(pb, track->sampleSize);
         avio_wb32(pb, track->enc->frame_size);

     } else {

         if (track->mode == MODE_MOV) {

             avio_wb16(pb, track->enc->channels);

             if (track->enc->codec_id == CODEC_ID_PCM_U8 ||
                 track->enc->codec_id == CODEC_ID_PCM_S8)

                 avio_wb16(pb, 8); /* bits per sample */

             else

                 avio_wb16(pb, 16);
             avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */

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

             avio_wb16(pb, 2);
             avio_wb16(pb, 16);
             avio_wb16(pb, 0);

         }

         avio_wb16(pb, 0); /* packet size (= 0) */
         avio_wb16(pb, track->timescale); /* Time scale */
         avio_wb16(pb, 0); /* Reserved */

     }

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

         avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
         avio_wb32(pb, track->sampleSize / track->enc->channels); /* Bytes per packet */
         avio_wb32(pb, track->sampleSize); /* Bytes per frame */
         avio_wb32(pb, 2); /* Bytes per sample */

     }
 

     if(track->mode == MODE_MOV &&
        (track->enc->codec_id == CODEC_ID_AAC ||

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

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

         track->enc->codec_id == CODEC_ID_ALAC ||

         track->enc->codec_id == CODEC_ID_ADPCM_MS ||
         track->enc->codec_id == CODEC_ID_ADPCM_IMA_WAV ||

         mov_pcm_le_gt16(track->enc->codec_id)))

         mov_write_wave_tag(pb, track);

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

         mov_write_esds_tag(pb, track);
     else if(track->enc->codec_id == CODEC_ID_AMR_NB)

         mov_write_amr_tag(pb, track);

     else if(track->enc->codec_id == CODEC_ID_AC3)
         mov_write_ac3_tag(pb, track);

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

         mov_write_extradata_tag(pb, track);

     else if(track->vosLen > 0)
         mov_write_glbl_tag(pb, track);

     return updateSize(pb, pos);

 }
 

 static int mov_write_d263_tag(AVIOContext *pb)

 {

     avio_wb32(pb, 0xf); /* size */

     ffio_wfourcc(pb, "d263");
     ffio_wfourcc(pb, "FFMP");

     avio_w8(pb, 0); /* decoder version */

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

     avio_w8(pb, 0xa); /* level */
     avio_w8(pb, 0); /* profile */

     return 0xf;
 }
 

 /* TODO: No idea about these values */

 static int mov_write_svq3_tag(AVIOContext *pb)

 {

     avio_wb32(pb, 0x15);

     ffio_wfourcc(pb, "SMI ");
     ffio_wfourcc(pb, "SEQH");

     avio_wb32(pb, 0x5);
     avio_wb32(pb, 0xe2c0211d);
     avio_wb32(pb, 0xc0000000);
     avio_w8(pb, 0);

     return 0x15;

 }
 

 static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)

 {

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0);

     ffio_wfourcc(pb, "avcC");

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

     return updateSize(pb, pos);
 }
 

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

 static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)

 {
     int i;

     avio_wb32(pb, 24); /* size */

     ffio_wfourcc(pb, "ACLR");
     ffio_wfourcc(pb, "ACLR");
     ffio_wfourcc(pb, "0001");

     avio_wb32(pb, 2); /* yuv range: full 1 / normal 2 */

     avio_wb32(pb, 0); /* unknown */

     avio_wb32(pb, 24); /* size */

     ffio_wfourcc(pb, "APRG");
     ffio_wfourcc(pb, "APRG");
     ffio_wfourcc(pb, "0001");

     avio_wb32(pb, 1); /* unknown */
     avio_wb32(pb, 0); /* unknown */

     avio_wb32(pb, 120); /* size */

     ffio_wfourcc(pb, "ARES");
     ffio_wfourcc(pb, "ARES");
     ffio_wfourcc(pb, "0001");

     avio_wb32(pb, AV_RB32(track->vosData + 0x28)); /* dnxhd cid, some id ? */
     avio_wb32(pb, track->enc->width);

     /* values below are based on samples created with quicktime and avid codecs */
     if (track->vosData[5] & 2) { // interlaced

         avio_wb32(pb, track->enc->height/2);
         avio_wb32(pb, 2); /* unknown */
         avio_wb32(pb, 0); /* unknown */
         avio_wb32(pb, 4); /* unknown */

     } else {

         avio_wb32(pb, track->enc->height);
         avio_wb32(pb, 1); /* unknown */
         avio_wb32(pb, 0); /* unknown */

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

             avio_wb32(pb, 5); /* unknown */

         else

             avio_wb32(pb, 6); /* unknown */

     }
     /* padding */
     for (i = 0; i < 10; i++)

         avio_wb64(pb, 0);

 
     /* extra padding for stsd needed */

     avio_wb32(pb, 0);

     return 0;
 }
 

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

 {

     int tag = track->enc->codec_tag;

     if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))

         return 0;
 
     if      (track->enc->codec_id == CODEC_ID_H264)      tag = MKTAG('a','v','c','1');
     else if (track->enc->codec_id == CODEC_ID_AC3)       tag = MKTAG('a','c','-','3');
     else if (track->enc->codec_id == CODEC_ID_DIRAC)     tag = MKTAG('d','r','a','c');
     else if (track->enc->codec_id == CODEC_ID_MOV_TEXT)  tag = MKTAG('t','x','3','g');

     else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
     else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');

 
     return tag;
 }
 

 static const AVCodecTag codec_ipod_tags[] = {
     { CODEC_ID_H264,   MKTAG('a','v','c','1') },
     { CODEC_ID_MPEG4,  MKTAG('m','p','4','v') },
     { CODEC_ID_AAC,    MKTAG('m','p','4','a') },
     { CODEC_ID_ALAC,   MKTAG('a','l','a','c') },
     { CODEC_ID_AC3,    MKTAG('a','c','-','3') },
     { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
     { CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
     { CODEC_ID_NONE, 0 },
 };
 

 static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
 {
     int tag = track->enc->codec_tag;
 

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

     if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&

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

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

         tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);

     if (!av_match_ext(s->filename, "m4a") && !av_match_ext(s->filename, "m4v"))

         av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v "
                "Quicktime/Ipod might not play the file\n");

 
     return tag;
 }
 
 static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
 {
     int tag;
 

     if (track->enc->width == 720) /* SD */
         if (track->enc->height == 480) /* NTSC */
             if  (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
             else                                         tag = MKTAG('d','v','c',' ');
         else if (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
         else if (track->enc->pix_fmt == PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
         else                                             tag = MKTAG('d','v','p','p');
     else if (track->enc->height == 720) /* HD 720 line */
         if  (track->enc->time_base.den == 50)            tag = MKTAG('d','v','h','q');
         else                                             tag = MKTAG('d','v','h','p');
     else if (track->enc->height == 1080) /* HD 1080 line */
         if  (track->enc->time_base.den == 25)            tag = MKTAG('d','v','h','5');
         else                                             tag = MKTAG('d','v','h','6');
     else {
         av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
         return 0;
     }

 
     return tag;
 }
 

 static const struct {
     enum PixelFormat pix_fmt;
     uint32_t tag;
     unsigned bps;
 } mov_pix_fmt_tags[] = {
     { PIX_FMT_YUYV422, MKTAG('y','u','v','s'),  0 },
     { PIX_FMT_UYVY422, MKTAG('2','v','u','y'),  0 },

     { PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },

     { PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
     { PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
     { PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },

     { PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },

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

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

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

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

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

     { PIX_FMT_ABGR,    MKTAG('A','B','G','R'), 32 },

     { PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },

 };
 

 static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
 {
     int tag = track->enc->codec_tag;

     int i;
 
     for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
         if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
             tag = mov_pix_fmt_tags[i].tag;
             track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
             break;
         }
     }

 
     return tag;
 }
 
 static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
 {
     int tag = track->enc->codec_tag;
 
     if (!tag || (track->enc->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&

                  (track->enc->codec_id == CODEC_ID_DVVIDEO ||

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

                   track->enc->codec_id == CODEC_ID_H263 ||

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

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

             tag = mov_get_dv_codec_tag(s, track);

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

             tag = mov_get_rawvideo_codec_tag(s, track);

         else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {

             tag = ff_codec_get_tag(codec_movvideo_tags, track->enc->codec_id);

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

                 tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);

                 if (tag)
                     av_log(s, AV_LOG_INFO, "Warning, using MS style video codec tag, "
                            "the file may be unplayable!\n");
             }

         } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {

             tag = ff_codec_get_tag(codec_movaudio_tags, track->enc->codec_id);

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

                 int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);

                 if (ms_tag) {
                     tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
                     av_log(s, AV_LOG_INFO, "Warning, using MS style audio codec tag, "
                            "the file may be unplayable!\n");

                 }

             }

         } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)

             tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);

     }

     return tag;
 }
 

 static const AVCodecTag codec_3gp_tags[] = {
     { CODEC_ID_H263,   MKTAG('s','2','6','3') },
     { CODEC_ID_H264,   MKTAG('a','v','c','1') },
     { CODEC_ID_MPEG4,  MKTAG('m','p','4','v') },
     { CODEC_ID_AAC,    MKTAG('m','p','4','a') },
     { CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
     { CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
     { CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
     { CODEC_ID_NONE, 0 },
 };
 

 static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
 {
     int tag = track->enc->codec_tag;
 
     if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
         tag = mp4_get_codec_tag(s, track);
     else if (track->mode == MODE_IPOD)
         tag = ipod_get_codec_tag(s, track);
     else if (track->mode & MODE_3GP)

         tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);

     else
         tag = mov_get_codec_tag(s, track);
 
     return tag;
 }
 

 /** Write uuid atom.
  * Needed to make file play in iPods running newest firmware
  * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
  */

 static int mov_write_uuid_tag_ipod(AVIOContext *pb)

 {

     avio_wb32(pb, 28);

     ffio_wfourcc(pb, "uuid");

     avio_wb32(pb, 0x6b6840f2);
     avio_wb32(pb, 0x5f244fc5);
     avio_wb32(pb, 0xba39a51b);
     avio_wb32(pb, 0xcf0323f3);
     avio_wb32(pb, 0x0);

     return 28;
 }
 

 static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)

 {

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0);    /* size */
     avio_wl32(pb, track->tag); // store it byteswapped
     avio_wb32(pb, 0);    /* Reserved */
     avio_wb16(pb, 0);    /* Reserved */
     avio_wb16(pb, 1);    /* Data-reference index */

 
     if (track->enc->extradata_size)

         avio_write(pb, track->enc->extradata, track->enc->extradata_size);

 
     return updateSize(pb, pos);
 }
 

 static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)

 {
     AVRational sar;
     av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
               track->enc->sample_aspect_ratio.den, INT_MAX);
 

     avio_wb32(pb, 16);

     ffio_wfourcc(pb, "pasp");

     avio_wb32(pb, sar.num);
     avio_wb32(pb, sar.den);

     return 16;
 }
 

 static int mov_write_video_tag(AVIOContext *pb, MOVTrack *track)

 {

     int64_t pos = avio_tell(pb);

     char compressor_name[32];

     avio_wb32(pb, 0); /* size */
     avio_wl32(pb, track->tag); // store it byteswapped
     avio_wb32(pb, 0); /* Reserved */
     avio_wb16(pb, 0); /* Reserved */
     avio_wb16(pb, 1); /* Data-reference index */

     avio_wb16(pb, 0); /* Codec stream version */
     avio_wb16(pb, 0); /* Codec stream revision (=0) */

     if (track->mode == MODE_MOV) {

         ffio_wfourcc(pb, "FFMP"); /* Vendor */

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

             avio_wb32(pb, 0); /* Temporal Quality */
             avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/

         } else {

             avio_wb32(pb, 0x200); /* Temporal Quality = normal */
             avio_wb32(pb, 0x200); /* Spatial Quality = normal */

         }

     } else {

         avio_wb32(pb, 0); /* Reserved */
         avio_wb32(pb, 0); /* Reserved */
         avio_wb32(pb, 0); /* Reserved */

     }

     avio_wb16(pb, track->enc->width); /* Video width */
     avio_wb16(pb, track->height); /* Video height */
     avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
     avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
     avio_wb32(pb, 0); /* Data size (= 0) */
     avio_wb16(pb, 1); /* Frame count (= 1) */

     memset(compressor_name,0,32);

     /* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
     if (track->mode == MODE_MOV && track->enc->codec && track->enc->codec->name)

         av_strlcpy(compressor_name,track->enc->codec->name,32);

     avio_w8(pb, strlen(compressor_name));
     avio_write(pb, compressor_name, 31);

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

         avio_wb16(pb, track->enc->bits_per_coded_sample);

     else

         avio_wb16(pb, 0x18); /* Reserved */
     avio_wb16(pb, 0xffff); /* Reserved */

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

         mov_write_esds_tag(pb, track);
     else if(track->enc->codec_id == CODEC_ID_H263)
         mov_write_d263_tag(pb);
     else if(track->enc->codec_id == CODEC_ID_SVQ3)

         mov_write_svq3_tag(pb);

     else if(track->enc->codec_id == CODEC_ID_DNXHD)
         mov_write_avid_tag(pb, track);

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

         mov_write_avcc_tag(pb, track);

         if(track->mode == MODE_IPOD)
             mov_write_uuid_tag_ipod(pb);

     } else if(track->vosLen > 0)

         mov_write_glbl_tag(pb, track);

     if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&

         track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
         mov_write_pasp_tag(pb, track);
     }
 

     return updateSize(pb, pos);

 }
 

 static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)

 {

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "rtp ");

     avio_wb32(pb, 0); /* Reserved */
     avio_wb16(pb, 0); /* Reserved */
     avio_wb16(pb, 1); /* Data-reference index */

     avio_wb16(pb, 1); /* Hint track version */
     avio_wb16(pb, 1); /* Highest compatible version */
     avio_wb32(pb, track->max_packet_size); /* Max packet size */

     avio_wb32(pb, 12); /* size */

     ffio_wfourcc(pb, "tims");

     avio_wb32(pb, track->timescale);

 
     return updateSize(pb, pos);
 }
 

 static int mov_write_stsd_tag(AVIOContext *pb, MOVTrack *track)

 {

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "stsd");

     avio_wb32(pb, 0); /* version & flags */
     avio_wb32(pb, 1); /* entry count */

     if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)

         mov_write_video_tag(pb, track);

     else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)

         mov_write_audio_tag(pb, track);

     else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)

         mov_write_subtitle_tag(pb, track);

     else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
         mov_write_rtp_tag(pb, track);

     return updateSize(pb, pos);

 }
 

 static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)

 {

     MOVStts *ctts_entries;

     uint32_t entries = 0;
     uint32_t atom_size;
     int i;
 
     ctts_entries = av_malloc((track->entry + 1) * sizeof(*ctts_entries)); /* worst case */
     ctts_entries[0].count = 1;

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

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

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

             ctts_entries[entries].count++; /* compress */
         } else {
             entries++;

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

             ctts_entries[entries].count = 1;
         }
     }
     entries++; /* last one */
     atom_size = 16 + (entries * 8);

     avio_wb32(pb, atom_size); /* size */

     ffio_wfourcc(pb, "ctts");

     avio_wb32(pb, 0); /* version & flags */
     avio_wb32(pb, entries); /* entry count */

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

         avio_wb32(pb, ctts_entries[i].count);
         avio_wb32(pb, ctts_entries[i].duration);

     }
     av_free(ctts_entries);
     return atom_size;
 }
 

 /* Time to sample atom */

 static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)

 {

     MOVStts *stts_entries;

     uint32_t entries = -1;
     uint32_t atom_size;
     int i;
 

     if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {

         stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
         stts_entries[0].count = track->sampleCount;
         stts_entries[0].duration = 1;
         entries = 1;
     } else {
         stts_entries = av_malloc(track->entry * sizeof(*stts_entries)); /* worst case */
         for (i=0; i<track->entry; i++) {
             int64_t duration = i + 1 == track->entry ?
                 track->trackDuration - track->cluster[i].dts + track->cluster[0].dts : /* readjusting */
                 track->cluster[i+1].dts - track->cluster[i].dts;
             if (i && duration == stts_entries[entries].duration) {
                 stts_entries[entries].count++; /* compress */
             } else {
                 entries++;
                 stts_entries[entries].duration = duration;
                 stts_entries[entries].count = 1;
             }
         }
         entries++; /* last one */
     }
     atom_size = 16 + (entries * 8);

     avio_wb32(pb, atom_size); /* size */

     ffio_wfourcc(pb, "stts");

     avio_wb32(pb, 0); /* version & flags */
     avio_wb32(pb, entries); /* entry count */

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

         avio_wb32(pb, stts_entries[i].count);
         avio_wb32(pb, stts_entries[i].duration);

     }
     av_free(stts_entries);
     return atom_size;

 }
 

 static int mov_write_dref_tag(AVIOContext *pb)

 {

     avio_wb32(pb, 28); /* size */

     ffio_wfourcc(pb, "dref");

     avio_wb32(pb, 0); /* version & flags */
     avio_wb32(pb, 1); /* entry count */

     avio_wb32(pb, 0xc); /* size */

     ffio_wfourcc(pb, "url ");

     avio_wb32(pb, 1); /* version & flags */

 
     return 28;
 }
 

 static int mov_write_stbl_tag(AVIOContext *pb, MOVTrack *track)

 {

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "stbl");

     mov_write_stsd_tag(pb, track);
     mov_write_stts_tag(pb, track);

     if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
          track->enc->codec_tag == MKTAG('r','t','p',' ')) &&

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

         mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
     if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
         mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);

     if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&

         track->flags & MOV_TRACK_CTTS)

         mov_write_ctts_tag(pb, track);

     mov_write_stsc_tag(pb, track);
     mov_write_stsz_tag(pb, track);
     mov_write_stco_tag(pb, track);
     return updateSize(pb, pos);

 }
 

 static int mov_write_dinf_tag(AVIOContext *pb)

 {

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "dinf");

     mov_write_dref_tag(pb);
     return updateSize(pb, pos);

 }
 

 static int mov_write_nmhd_tag(AVIOContext *pb)

 {

     avio_wb32(pb, 12);

     ffio_wfourcc(pb, "nmhd");

     avio_wb32(pb, 0);

     return 12;
 }
 

 static int mov_write_gmhd_tag(AVIOContext *pb)

 {

     avio_wb32(pb, 0x20);   /* size */

     ffio_wfourcc(pb, "gmhd");

     avio_wb32(pb, 0x18);   /* gmin size */

     ffio_wfourcc(pb, "gmin");/* generic media info */

     avio_wb32(pb, 0);      /* version & flags */
     avio_wb16(pb, 0x40);   /* graphics mode = */
     avio_wb16(pb, 0x8000); /* opColor (r?) */
     avio_wb16(pb, 0x8000); /* opColor (g?) */
     avio_wb16(pb, 0x8000); /* opColor (b?) */
     avio_wb16(pb, 0);      /* balance */
     avio_wb16(pb, 0);      /* reserved */

     return 0x20;
 }
 

 static int mov_write_smhd_tag(AVIOContext *pb)

 {

     avio_wb32(pb, 16); /* size */

     ffio_wfourcc(pb, "smhd");

     avio_wb32(pb, 0); /* version & flags */
     avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
     avio_wb16(pb, 0); /* reserved */

     return 16;
 }
 

 static int mov_write_vmhd_tag(AVIOContext *pb)

 {

     avio_wb32(pb, 0x14); /* size (always 0x14) */

     ffio_wfourcc(pb, "vmhd");

     avio_wb32(pb, 0x01); /* version & flags */
     avio_wb64(pb, 0); /* reserved (graphics mode = copy) */

     return 0x14;
 }
 

 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)

 {

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

     int64_t pos = avio_tell(pb);

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

         hdlr = "dhlr";
         hdlr_type = "url ";
         descr = "DataHandler";

     } else {

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

         if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {

             hdlr_type = "vide";
             descr = "VideoHandler";

         } else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {

             hdlr_type = "soun";
             descr = "SoundHandler";

         } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {

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

             else                                      hdlr_type = "text";

             descr = "SubtitleHandler";

         } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
             hdlr_type = "hint";
             descr = "HintHandler";

         }

     }

     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "hdlr");

     avio_wb32(pb, 0); /* Version & flags */
     avio_write(pb, hdlr, 4); /* handler */

     ffio_wfourcc(pb, hdlr_type); /* handler type */

     avio_wb32(pb ,0); /* reserved */
     avio_wb32(pb ,0); /* reserved */
     avio_wb32(pb ,0); /* reserved */

     if (!track || track->mode == MODE_MOV)

         avio_w8(pb, strlen(descr)); /* pascal string */
     avio_write(pb, descr, strlen(descr)); /* handler description */

     if (track && track->mode != MODE_MOV)

         avio_w8(pb, 0); /* c string */

     return updateSize(pb, pos);
 }
 

 static int mov_write_hmhd_tag(AVIOContext *pb)

 {
     /* This atom must be present, but leaving the values at zero
      * seems harmless. */

     avio_wb32(pb, 28); /* size */

     ffio_wfourcc(pb, "hmhd");

     avio_wb32(pb, 0); /* version, flags */
     avio_wb16(pb, 0); /* maxPDUsize */
     avio_wb16(pb, 0); /* avgPDUsize */
     avio_wb32(pb, 0); /* maxbitrate */
     avio_wb32(pb, 0); /* avgbitrate */
     avio_wb32(pb, 0); /* reserved */

     return 28;
 }
 

 static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)

 {

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "minf");

     if(track->enc->codec_type == AVMEDIA_TYPE_VIDEO)

         mov_write_vmhd_tag(pb);

     else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)

         mov_write_smhd_tag(pb);

     else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {

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

         else                                      mov_write_nmhd_tag(pb);

     } else if (track->tag == MKTAG('r','t','p',' ')) {
         mov_write_hmhd_tag(pb);

     }

     if (track->mode == MODE_MOV) /* FIXME: Why do it for MODE_MOV only ? */
         mov_write_hdlr_tag(pb, NULL);
     mov_write_dinf_tag(pb);
     mov_write_stbl_tag(pb, track);

     return updateSize(pb, pos);

 }
 

 static int mov_write_mdhd_tag(AVIOContext *pb, MOVTrack *track)

 {

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

     (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */

     ffio_wfourcc(pb, "mdhd");

     avio_w8(pb, version);
     avio_wb24(pb, 0); /* flags */

     if (version == 1) {

         avio_wb64(pb, track->time);
         avio_wb64(pb, track->time);

     } else {

         avio_wb32(pb, track->time); /* creation time */
         avio_wb32(pb, track->time); /* modification time */

     }

     avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */
     (version == 1) ? avio_wb64(pb, track->trackDuration) : avio_wb32(pb, track->trackDuration); /* duration */
     avio_wb16(pb, track->language); /* language */
     avio_wb16(pb, 0); /* reserved (quality) */

 
     if(version!=0 && track->mode == MODE_MOV){
         av_log(NULL, AV_LOG_ERROR,
             "FATAL error, file duration too long for timebase, this file will not be\n"

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

             "container format\n");
     }
 

     return 32;
 }
 

 static int mov_write_mdia_tag(AVIOContext *pb, MOVTrack *track)

 {

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "mdia");

     mov_write_mdhd_tag(pb, track);
     mov_write_hdlr_tag(pb, track);
     mov_write_minf_tag(pb, track);
     return updateSize(pb, pos);

 }
 

 static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)

 {

     int64_t duration = av_rescale_rnd(track->trackDuration, MOV_TIMESCALE,
                                       track->timescale, AV_ROUND_UP);

     int version = duration < INT32_MAX ? 0 : 1;
 

     (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */

     ffio_wfourcc(pb, "tkhd");

     avio_w8(pb, version);
     avio_wb24(pb, 0xf); /* flags (track enabled) */

     if (version == 1) {

         avio_wb64(pb, track->time);
         avio_wb64(pb, track->time);

     } else {

         avio_wb32(pb, track->time); /* creation time */
         avio_wb32(pb, track->time); /* modification time */

     }

     avio_wb32(pb, track->trackID); /* track-id */
     avio_wb32(pb, 0); /* reserved */
     (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration);

     avio_wb32(pb, 0); /* reserved */
     avio_wb32(pb, 0); /* reserved */

     avio_wb16(pb, 0); /* layer */

     avio_wb16(pb, st ? st->codec->codec_type : 0); /* alternate group) */

     /* Volume, only for audio */

     if(track->enc->codec_type == AVMEDIA_TYPE_AUDIO)

         avio_wb16(pb, 0x0100);

     else

         avio_wb16(pb, 0);
     avio_wb16(pb, 0); /* reserved */

 
     /* Matrix structure */

     avio_wb32(pb, 0x00010000); /* reserved */
     avio_wb32(pb, 0x0); /* reserved */
     avio_wb32(pb, 0x0); /* reserved */
     avio_wb32(pb, 0x0); /* reserved */
     avio_wb32(pb, 0x00010000); /* reserved */
     avio_wb32(pb, 0x0); /* reserved */
     avio_wb32(pb, 0x0); /* reserved */
     avio_wb32(pb, 0x0); /* reserved */
     avio_wb32(pb, 0x40000000); /* reserved */

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

     if(st && (track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
               track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)) {

         if(track->mode == MODE_MOV) {
             avio_wb32(pb, track->enc->width << 16);

             avio_wb32(pb, track->height << 16);

         } else {

             double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
             if(!sample_aspect_ratio || track->height != track->enc->height)
                 sample_aspect_ratio = 1;
             avio_wb32(pb, sample_aspect_ratio * track->enc->width*0x10000);
             avio_wb32(pb, track->height*0x10000);

         }

     }
     else {

         avio_wb32(pb, 0);
         avio_wb32(pb, 0);

     }
     return 0x5c;
 }
 

 static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track)

 {
     int32_t width = av_rescale(track->enc->sample_aspect_ratio.num, track->enc->width,
                                track->enc->sample_aspect_ratio.den);
 

     int64_t pos = avio_tell(pb);

 
     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "tapt");

 
     avio_wb32(pb, 20);

     ffio_wfourcc(pb, "clef");

     avio_wb32(pb, 0);
     avio_wb32(pb, width << 16);
     avio_wb32(pb, track->enc->height << 16);
 
     avio_wb32(pb, 20);

     ffio_wfourcc(pb, "enof");

     avio_wb32(pb, 0);
     avio_wb32(pb, track->enc->width << 16);
     avio_wb32(pb, track->enc->height << 16);
 
     return updateSize(pb, pos);
 };
 

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

 static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)

 {

     int64_t duration = av_rescale_rnd(track->trackDuration, MOV_TIMESCALE,
                                       track->timescale, AV_ROUND_UP);
     int version = duration < INT32_MAX ? 0 : 1;
     int entry_size, entry_count, size;
     int64_t delay, start_ct = track->cluster[0].cts;
     delay = av_rescale_rnd(track->cluster[0].dts + start_ct, MOV_TIMESCALE,
                            track->timescale, AV_ROUND_DOWN);
     version |= delay < INT32_MAX ? 0 : 1;
 
     entry_size = (version == 1) ? 20 : 12;
     entry_count = 1 + (delay > 0);
     size = 24 + entry_count * entry_size;
 
     /* write the atom data */
     avio_wb32(pb, size);

     ffio_wfourcc(pb, "edts");

     avio_wb32(pb, size - 8);

     ffio_wfourcc(pb, "elst");

     avio_w8(pb, version);
     avio_wb24(pb, 0); /* flags */

     avio_wb32(pb, entry_count);
     if (delay > 0) { /* add an empty edit to delay presentation */
         if (version == 1) {
             avio_wb64(pb, delay);
             avio_wb64(pb, -1);
         } else {
             avio_wb32(pb, delay);
             avio_wb32(pb, -1);
         }
         avio_wb32(pb, 0x00010000);
     }

     /* duration */
     if (version == 1) {
         avio_wb64(pb, duration);
         avio_wb64(pb, start_ct);
     } else {
         avio_wb32(pb, duration);
         avio_wb32(pb, start_ct);
     }

     avio_wb32(pb, 0x00010000);

     return size;

 }
 

 static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track)

 {

     avio_wb32(pb, 20);   // size

     ffio_wfourcc(pb, "tref");

     avio_wb32(pb, 12);   // size (subatom)
     avio_wl32(pb, track->tref_tag);
     avio_wb32(pb, track->tref_id);

     return 20;
 }
 

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

 static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov)

 {

     avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */

     ffio_wfourcc(pb, "uuid");
     ffio_wfourcc(pb, "USMT");

     avio_wb32(pb, 0x21d24fce);
     avio_wb32(pb, 0xbb88695c);
     avio_wb32(pb, 0xfac9c740);
     avio_wb32(pb, 0x1c);     // another size here!

     ffio_wfourcc(pb, "MTDT");

     avio_wb32(pb, 0x00010012);
     avio_wb32(pb, 0x0a);
     avio_wb32(pb, 0x55c40000);
     avio_wb32(pb, 0x1);
     avio_wb32(pb, 0x0);

     return 0x34;
 }
 

 static int mov_write_udta_sdp(AVIOContext *pb, AVFormatContext *ctx, int index)

 {
     char buf[1000] = "";
     int len;
 

     ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0]->codec, NULL, NULL, 0, 0, ctx);

     av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", index);
     len = strlen(buf);
 

     avio_wb32(pb, len + 24);

     ffio_wfourcc(pb, "udta");

     avio_wb32(pb, len + 16);

     ffio_wfourcc(pb, "hnti");

     avio_wb32(pb, len + 8);

     ffio_wfourcc(pb, "sdp ");

     avio_write(pb, buf, len);

     return len + 24;
 }
 

 static int mov_write_trak_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)

 {

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "trak");

     mov_write_tkhd_tag(pb, track, st);

     if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS || track->cluster[0].dts)

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

     if (track->tref_tag)
         mov_write_tref_tag(pb, track);

     mov_write_mdia_tag(pb, track);

     if (track->mode == MODE_PSP)

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

     if (track->tag == MKTAG('r','t','p',' '))

         mov_write_udta_sdp(pb, track->rtp_ctx, track->trackID);

     if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
         double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
         if (0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)
             mov_write_tapt_tag(pb, track);
     };

     return updateSize(pb, pos);

 }
 

 #if 0

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

 static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)

 {

     avio_wb32(pb, 0x15); /* size */

     ffio_wfourcc(pb, "iods");

     avio_wb32(pb, 0);    /* version & flags */
     avio_wb16(pb, 0x1007);
     avio_w8(pb, 0);
     avio_wb16(pb, 0x4fff);
     avio_wb16(pb, 0xfffe);
     avio_wb16(pb, 0x01ff);

     return 0x15;
 }

 #endif

 static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov)

 {

     int maxTrackID = 1, i;
     int64_t maxTrackLenTemp, maxTrackLen = 0;

     int version;

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

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

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

             if(maxTrackLen < maxTrackLenTemp)
                 maxTrackLen = maxTrackLenTemp;

             if(maxTrackID < mov->tracks[i].trackID)
                 maxTrackID = mov->tracks[i].trackID;
         }
     }

 
     version = maxTrackLen < UINT32_MAX ? 0 : 1;

     (version == 1) ? avio_wb32(pb, 120) : avio_wb32(pb, 108); /* size */

     ffio_wfourcc(pb, "mvhd");

     avio_w8(pb, version);
     avio_wb24(pb, 0); /* flags */

     if (version == 1) {

         avio_wb64(pb, mov->time);
         avio_wb64(pb, mov->time);

     } else {

         avio_wb32(pb, mov->time); /* creation time */
         avio_wb32(pb, mov->time); /* modification time */

     }

     avio_wb32(pb, MOV_TIMESCALE);
     (version == 1) ? avio_wb64(pb, maxTrackLen) : avio_wb32(pb, maxTrackLen); /* duration of longest track */

     avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */
     avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */
     avio_wb16(pb, 0); /* reserved */
     avio_wb32(pb, 0); /* reserved */
     avio_wb32(pb, 0); /* reserved */

 
     /* Matrix structure */

     avio_wb32(pb, 0x00010000); /* reserved */
     avio_wb32(pb, 0x0); /* reserved */
     avio_wb32(pb, 0x0); /* reserved */
     avio_wb32(pb, 0x0); /* reserved */
     avio_wb32(pb, 0x00010000); /* reserved */
     avio_wb32(pb, 0x0); /* reserved */
     avio_wb32(pb, 0x0); /* reserved */
     avio_wb32(pb, 0x0); /* reserved */
     avio_wb32(pb, 0x40000000); /* reserved */
 
     avio_wb32(pb, 0); /* reserved (preview time) */
     avio_wb32(pb, 0); /* reserved (preview duration) */
     avio_wb32(pb, 0); /* reserved (poster time) */
     avio_wb32(pb, 0); /* reserved (selection time) */
     avio_wb32(pb, 0); /* reserved (selection duration) */
     avio_wb32(pb, 0); /* reserved (current time) */
     avio_wb32(pb, maxTrackID+1); /* Next track id */

     return 0x6c;
 }
 

 static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov,

                                      AVFormatContext *s)
 {

     avio_wb32(pb, 33); /* size */

     ffio_wfourcc(pb, "hdlr");

     avio_wb32(pb, 0);
     avio_wb32(pb, 0);

     ffio_wfourcc(pb, "mdir");
     ffio_wfourcc(pb, "appl");

     avio_wb32(pb, 0);
     avio_wb32(pb, 0);
     avio_w8(pb, 0);

     return 33;

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

 static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style)

 {

     if(long_style){

         int size = 16 + strlen(data);

         avio_wb32(pb, size); /* size */

         ffio_wfourcc(pb, "data");

         avio_wb32(pb, 1);
         avio_wb32(pb, 0);
         avio_write(pb, data, strlen(data));

         return size;

     }else{

         if (!lang)
             lang = ff_mov_iso639_to_lang("und", 1);

         avio_wb16(pb, strlen(data)); /* string length */
         avio_wb16(pb, lang);
         avio_write(pb, data, strlen(data));

         return strlen(data) + 4;

     }
 }
 

 static int mov_write_string_tag(AVIOContext *pb, const char *name, const char *value, int lang, int long_style){

     int size = 0;

     if (value && value[0]) {

         int64_t pos = avio_tell(pb);

         avio_wb32(pb, 0); /* size */

         ffio_wfourcc(pb, name);

         mov_write_string_data_tag(pb, value, lang, long_style);

         size= updateSize(pb, pos);

     }
     return size;
 }
 

 static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb,

                                      const char *name, const char *tag,
                                      int long_style)

 {

     int l, lang = 0, len, len2;

     AVDictionaryEntry *t, *t2 = NULL;

     char tag2[16];

     if (!(t = av_dict_get(s->metadata, tag, NULL, 0)))

         return 0;

     len = strlen(t->key);
     snprintf(tag2, sizeof(tag2), "%s-", tag);

     while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) {

         len2 = strlen(t2->key);
         if (len2 == len+4 && !strcmp(t->value, t2->value)

             && (l=ff_mov_iso639_to_lang(&t2->key[len2-3], 1)) >= 0) {

             lang = l;
             break;
         }
     }
     return mov_write_string_tag(pb, name, t->value, lang, long_style);

 }
 
 /* iTunes track number */

 static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov,

                               AVFormatContext *s)
 {

     AVDictionaryEntry *t = av_dict_get(s->metadata, "track", NULL, 0);

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

         avio_wb32(pb, 32); /* size */

         ffio_wfourcc(pb, "trkn");

             avio_wb32(pb, 24); /* size */

             ffio_wfourcc(pb, "data");

             avio_wb32(pb, 0);        // 8 bytes empty
             avio_wb32(pb, 0);
             avio_wb16(pb, 0);        // empty
             avio_wb16(pb, track);    // track number
             avio_wb16(pb, 0);        // total track number
             avio_wb16(pb, 0);        // empty

         size = 32;

     }
     return size;
 }
 
 /* iTunes meta data list */

 static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov,

                               AVFormatContext *s)
 {

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "ilst");

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

     mov_write_string_metadata(s, pb, "\251ART", "artist"   , 1);

     mov_write_string_metadata(s, pb, "aART", "album_artist", 1);

     mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1);

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

     mov_write_string_metadata(s, pb, "\251day", "date"     , 1);

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

     mov_write_string_metadata(s, pb, "\251cmt", "comment"  , 1);
     mov_write_string_metadata(s, pb, "\251gen", "genre"    , 1);
     mov_write_string_metadata(s, pb, "\251cpy", "copyright", 1);

     mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1);
     mov_write_string_metadata(s, pb, "\251lyr", "lyrics"   , 1);

     mov_write_string_metadata(s, pb, "desc",    "description",1);
     mov_write_string_metadata(s, pb, "ldes",    "synopsis" , 1);
     mov_write_string_metadata(s, pb, "tvsh",    "show"     , 1);
     mov_write_string_metadata(s, pb, "tven",    "episode_id",1);
     mov_write_string_metadata(s, pb, "tvnn",    "network"  , 1);

     mov_write_trkn_tag(pb, mov, s);
     return updateSize(pb, pos);
 }
 
 /* iTunes meta data tag */

 static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov,

                               AVFormatContext *s)
 {
     int size = 0;

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "meta");

     avio_wb32(pb, 0);

     mov_write_itunes_hdlr_tag(pb, mov, s);
     mov_write_ilst_tag(pb, mov, s);
     size = updateSize(pb, pos);

     return size;
 }

 static int utf8len(const uint8_t *b)
 {
     int len=0;
     int val;
     while(*b){
         GET_UTF8(val, *b++, return -1;)
         len++;
     }
     return len;
 }
 

 static int ascii_to_wc(AVIOContext *pb, const uint8_t *b)

 {
     int val;
     while(*b){
         GET_UTF8(val, *b++, return -1;)

         avio_wb16(pb, val);

     }

     avio_wb16(pb, 0x00);

     return 0;
 }
 
 static uint16_t language_code(const char *str)
 {
     return (((str[0]-0x60) & 0x1F) << 10) + (((str[1]-0x60) & 0x1F) << 5) + ((str[2]-0x60) & 0x1F);
 }
 

 static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s,

                                   const char *tag, const char *str)
 {

     int64_t pos = avio_tell(pb);

     AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0);

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

         return 0;

     avio_wb32(pb, 0);   /* size */

     ffio_wfourcc(pb, tag); /* type */

     avio_wb32(pb, 0);   /* version + flags */

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

         avio_wb16(pb, atoi(t->value));

     else {

         avio_wb16(pb, language_code("eng")); /* language */
         avio_write(pb, t->value, strlen(t->value)+1); /* UTF8 string value */

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

             (t = av_dict_get(s->metadata, "track", NULL, 0)))

             avio_w8(pb, atoi(t->value));

     }
     return updateSize(pb, pos);
 }
 

 static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s)

 {

     int64_t pos = avio_tell(pb);

     int i, nb_chapters = FFMIN(s->nb_chapters, 255);
 

     avio_wb32(pb, 0);            // size

     ffio_wfourcc(pb, "chpl");

     avio_wb32(pb, 0x01000000);   // version + flags
     avio_wb32(pb, 0);            // unknown
     avio_w8(pb, nb_chapters);

 
     for (i = 0; i < nb_chapters; i++) {
         AVChapter *c = s->chapters[i];

         AVDictionaryEntry *t;

         avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000}));

         if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {

             int len = FFMIN(strlen(t->value), 255);

             avio_w8(pb, len);
             avio_write(pb, t->value, len);

         } else

             avio_w8(pb, 0);

     }
     return updateSize(pb, pos);
 }
 

 static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov,

                               AVFormatContext *s)
 {

     AVIOContext *pb_buf;

     int i, ret, size;
     uint8_t *buf;

     for (i = 0; i < s->nb_streams; i++)
         if (mov->tracks[i].enc->flags & CODEC_FLAG_BITEXACT) {

             return 0;

         }
 

     ret = avio_open_dyn_buf(&pb_buf);

     if(ret < 0)
         return ret;

         if (mov->mode & MODE_3GP) {

             mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist");

             mov_write_3gp_udta_tag(pb_buf, s, "titl", "title");
             mov_write_3gp_udta_tag(pb_buf, s, "auth", "author");
             mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre");
             mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment");
             mov_write_3gp_udta_tag(pb_buf, s, "albm", "album");
             mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright");

             mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date");

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

             mov_write_string_metadata(s, pb_buf, "\251ART", "artist"     , 0);

             mov_write_string_metadata(s, pb_buf, "\251nam", "title"      , 0);
             mov_write_string_metadata(s, pb_buf, "\251aut", "author"     , 0);
             mov_write_string_metadata(s, pb_buf, "\251alb", "album"      , 0);

             mov_write_string_metadata(s, pb_buf, "\251day", "date"       , 0);

             mov_write_string_metadata(s, pb_buf, "\251swr", "encoder"    , 0);

             mov_write_string_metadata(s, pb_buf, "\251des", "comment"    , 0);
             mov_write_string_metadata(s, pb_buf, "\251gen", "genre"      , 0);
             mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright"  , 0);

         } else {

             /* iTunes meta data */

             mov_write_meta_tag(pb_buf, mov, s);

         }

         if (s->nb_chapters)
             mov_write_chpl_tag(pb_buf, s);
 

     if ((size = avio_close_dyn_buf(pb_buf, &buf)) > 0) {

         avio_wb32(pb, size+8);

         ffio_wfourcc(pb, "udta");

         avio_write(pb, buf, size);

     }

     av_free(buf);

 
     return 0;

 }
 

 static void mov_write_psp_udta_tag(AVIOContext *pb,

                                   const char *str, const char *lang, int type)
 {
     int len = utf8len(str)+1;
     if(len<=0)

         return;

     avio_wb16(pb, len*2+10);            /* size */
     avio_wb32(pb, type);                /* type */
     avio_wb16(pb, language_code(lang)); /* language */
     avio_wb16(pb, 0x01);                /* ? */

     ascii_to_wc(pb, str);
 }
 

 static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)

 {

     AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);

     int64_t pos, pos2;

     if (title) {

         pos = avio_tell(pb);

         avio_wb32(pb, 0); /* size placeholder*/

         ffio_wfourcc(pb, "uuid");
         ffio_wfourcc(pb, "USMT");

         avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
         avio_wb32(pb, 0xbb88695c);
         avio_wb32(pb, 0xfac9c740);

         pos2 = avio_tell(pb);

         avio_wb32(pb, 0); /* size placeholder*/

         ffio_wfourcc(pb, "MTDT");

         avio_wb16(pb, 4);

         // ?

         avio_wb16(pb, 0x0C);                 /* size */
         avio_wb32(pb, 0x0B);                 /* type */
         avio_wb16(pb, language_code("und")); /* language */
         avio_wb16(pb, 0x0);                  /* ? */
         avio_wb16(pb, 0x021C);               /* data */

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

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

 //        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);

         mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03);
 
         updateSize(pb, pos2);
         return updateSize(pb, pos);

     }
 

     return 0;

 }
 

 static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,

                               AVFormatContext *s)

 {

     int i;

     int64_t pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size placeholder*/

     ffio_wfourcc(pb, "moov");

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

         if(mov->tracks[i].entry <= 0) continue;
 
         mov->tracks[i].time = mov->time;
         mov->tracks[i].trackID = i+1;

     }
 

     if (mov->chapter_track)
         for (i=0; i<s->nb_streams; i++) {
             mov->tracks[i].tref_tag = MKTAG('c','h','a','p');
             mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].trackID;
         }

     for (i = 0; i < mov->nb_streams; i++) {
         if (mov->tracks[i].tag == MKTAG('r','t','p',' ')) {
             mov->tracks[i].tref_tag = MKTAG('h','i','n','t');
             mov->tracks[i].tref_id =
                 mov->tracks[mov->tracks[i].src_track].trackID;
         }
     }

     mov_write_mvhd_tag(pb, mov);
     //mov_write_iods_tag(pb, mov);

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

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

             mov_write_trak_tag(pb, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);

         }
     }
 

     if (mov->mode == MODE_PSP)
         mov_write_uuidusmt_tag(pb, s);

     else

         mov_write_udta_tag(pb, mov, s);

     return updateSize(pb, pos);

 }
 

 static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov)

 {

     avio_wb32(pb, 8);    // placeholder for extended size field (64 bit)

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

     mov->mdat_pos = avio_tell(pb);

     avio_wb32(pb, 0); /* size placeholder*/

     ffio_wfourcc(pb, "mdat");

     return 0;
 }
 
 /* TODO: This needs to be more general */

 static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s)

 {

     MOVMuxContext *mov = s->priv_data;

     int64_t pos = avio_tell(pb);

     int has_h264 = 0, has_video = 0;

     int minor = 0x200;

     int i;

     for (i = 0; i < s->nb_streams; i++) {
         AVStream *st = s->streams[i];

         if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO)

             has_video = 1;

         if (st->codec->codec_id == CODEC_ID_H264)
             has_h264 = 1;
     }
 

     avio_wb32(pb, 0); /* size */

     ffio_wfourcc(pb, "ftyp");

     if (mov->mode == MODE_3GP) {

         ffio_wfourcc(pb, has_h264 ? "3gp6"  : "3gp4");

         minor =     has_h264 ?   0x100 :   0x200;
     } else if (mov->mode & MODE_3G2) {

         ffio_wfourcc(pb, has_h264 ? "3g2b"  : "3g2a");

         minor =     has_h264 ? 0x20000 : 0x10000;
     }else if (mov->mode == MODE_PSP)

         ffio_wfourcc(pb, "MSNV");

     else if (mov->mode == MODE_MP4)

         ffio_wfourcc(pb, "isom");

     else if (mov->mode == MODE_IPOD)

         ffio_wfourcc(pb, has_video ? "M4V ":"M4A ");

     else

         ffio_wfourcc(pb, "qt  ");

     avio_wb32(pb, minor);

     if(mov->mode == MODE_MOV)

         ffio_wfourcc(pb, "qt  ");

     else{

         ffio_wfourcc(pb, "isom");
         ffio_wfourcc(pb, "iso2");

         if(has_h264)

             ffio_wfourcc(pb, "avc1");

     }

     if (mov->mode == MODE_3GP)

         ffio_wfourcc(pb, has_h264 ? "3gp6":"3gp4");

     else if (mov->mode & MODE_3G2)

         ffio_wfourcc(pb, has_h264 ? "3g2b":"3g2a");

     else if (mov->mode == MODE_PSP)

         ffio_wfourcc(pb, "MSNV");

     else if (mov->mode == MODE_MP4)

         ffio_wfourcc(pb, "mp41");

     return updateSize(pb, pos);

 }
 

 static void mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s)

 {

     AVCodecContext *VideoCodec = s->streams[0]->codec;
     AVCodecContext *AudioCodec = s->streams[1]->codec;
     int AudioRate = AudioCodec->sample_rate;
     int FrameRate = ((VideoCodec->time_base.den) * (0x10000))/ (VideoCodec->time_base.num);

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

     avio_wb32(pb, 0x94); /* size */

     ffio_wfourcc(pb, "uuid");
     ffio_wfourcc(pb, "PROF");

     avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */
     avio_wb32(pb, 0xbb88695c);
     avio_wb32(pb, 0xfac9c740);

     avio_wb32(pb, 0x0);  /* ? */
     avio_wb32(pb, 0x3);  /* 3 sections ? */

     avio_wb32(pb, 0x14); /* size */

     ffio_wfourcc(pb, "FPRF");

     avio_wb32(pb, 0x0);  /* ? */
     avio_wb32(pb, 0x0);  /* ? */
     avio_wb32(pb, 0x0);  /* ? */

     avio_wb32(pb, 0x2c);  /* size */

     ffio_wfourcc(pb, "APRF");/* audio */

     avio_wb32(pb, 0x0);
     avio_wb32(pb, 0x2);   /* TrackID */

     ffio_wfourcc(pb, "mp4a");

     avio_wb32(pb, 0x20f);
     avio_wb32(pb, 0x0);
     avio_wb32(pb, audio_kbitrate);
     avio_wb32(pb, audio_kbitrate);
     avio_wb32(pb, AudioRate);
     avio_wb32(pb, AudioCodec->channels);
 
     avio_wb32(pb, 0x34);  /* size */

     ffio_wfourcc(pb, "VPRF");   /* video */

     avio_wb32(pb, 0x0);
     avio_wb32(pb, 0x1);    /* TrackID */

     if (VideoCodec->codec_id == CODEC_ID_H264) {

         ffio_wfourcc(pb, "avc1");

         avio_wb16(pb, 0x014D);
         avio_wb16(pb, 0x0015);

     } else {

         ffio_wfourcc(pb, "mp4v");

         avio_wb16(pb, 0x0000);
         avio_wb16(pb, 0x0103);

     }

     avio_wb32(pb, 0x0);
     avio_wb32(pb, video_kbitrate);
     avio_wb32(pb, video_kbitrate);
     avio_wb32(pb, FrameRate);
     avio_wb32(pb, FrameRate);
     avio_wb16(pb, VideoCodec->width);
     avio_wb16(pb, VideoCodec->height);
     avio_wb32(pb, 0x010001); /* ? */

 }
 

 static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
 {
     uint32_t c = -1;
     int i, closed_gop = 0;
 
     for (i = 0; i < pkt->size - 4; i++) {
         c = (c<<8) + pkt->data[i];
         if (c == 0x1b8) { // gop
             closed_gop = pkt->data[i+4]>>6 & 0x01;
         } else if (c == 0x100) { // pic
             int temp_ref = (pkt->data[i+1]<<2) | (pkt->data[i+2]>>6);
             if (!temp_ref || closed_gop) // I picture is not reordered
                 *flags = MOV_SYNC_SAMPLE;
             else
                 *flags = MOV_PARTIAL_SYNC_SAMPLE;
             break;
         }
     }
     return 0;
 }
 

 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)

 {

     MOVMuxContext *mov = s->priv_data;

     AVIOContext *pb = s->pb;

     MOVTrack *trk = &mov->tracks[pkt->stream_index];
     AVCodecContext *enc = trk->enc;

     unsigned int samplesInChunk = 0;

     int size= pkt->size;

     if (!s->pb->seekable) return 0; /* Can't handle that */

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

     if (enc->codec_id == CODEC_ID_AMR_NB) {

         /* We must find out how many AMR blocks there are in one packet */
         static uint16_t packed_size[16] =
             {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 0};
         int len = 0;
 
         while (len < size && samplesInChunk < 100) {
             len += packed_size[(pkt->data[len] >> 3) & 0x0F];
             samplesInChunk++;

         }

         if(samplesInChunk > 1){

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

             return -1;
         }

     } else if (enc->codec_id == CODEC_ID_ADPCM_MS ||
                enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
         samplesInChunk = enc->frame_size;

     } else if (trk->sampleSize)
         samplesInChunk = size/trk->sampleSize;
     else

         samplesInChunk = 1;

     /* copy extradata if it exists */
     if (trk->vosLen == 0 && enc->extradata_size > 0) {

         trk->vosLen = enc->extradata_size;
         trk->vosData = av_malloc(trk->vosLen);
         memcpy(trk->vosData, enc->extradata, trk->vosLen);
     }
 

     if (enc->codec_id == CODEC_ID_H264 && trk->vosLen > 0 && *(uint8_t *)trk->vosData != 1) {
         /* from x264 or from bytestream h264 */
         /* nal reformating needed */
         size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size);

     } else if (enc->codec_id == CODEC_ID_AAC && pkt->size > 2 &&
                (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) {
         av_log(s, AV_LOG_ERROR, "malformated aac bitstream, use -absf aac_adtstoasc\n");
         return -1;

     } else {

         avio_write(pb, pkt->data, size);

     }
 

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

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

         /* copy frame to create needed atoms */
         trk->vosLen = size;
         trk->vosData = av_malloc(size);

         if (!trk->vosData)
             return AVERROR(ENOMEM);

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

     }
 

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

         trk->cluster = av_realloc_f(trk->cluster, sizeof(*trk->cluster), (trk->entry + MOV_INDEX_CLUSTER_SIZE));

         if (!trk->cluster)
             return -1;
     }
 

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

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

     trk->cluster[trk->entry].dts = pkt->dts;
     trk->trackDuration = pkt->dts - trk->cluster[0].dts + pkt->duration;
 

     if (pkt->pts == AV_NOPTS_VALUE) {
         av_log(s, AV_LOG_WARNING, "pts has no value\n");
         pkt->pts = pkt->dts;
     }

     if (pkt->dts != pkt->pts)

         trk->flags |= MOV_TRACK_CTTS;

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

     trk->cluster[trk->entry].flags = 0;

     if (pkt->flags & AV_PKT_FLAG_KEY) {

         if (mov->mode == MODE_MOV && enc->codec_id == CODEC_ID_MPEG2VIDEO &&
             trk->entry > 0) { // force sync sample for the first key frame

             mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags);
             if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE)
                 trk->flags |= MOV_TRACK_STPS;
         } else {
             trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE;
         }
         if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE)
             trk->hasKeyframes++;

     }

     trk->entry++;
     trk->sampleCount += samplesInChunk;

     mov->mdat_size += size;

     avio_flush(pb);

 
     if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams)
         ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry);

     return 0;
 }
 

 // QuickTime chapters involve an additional text track with the chapter names
 // as samples, and a tref pointing from the other tracks to the chapter one.
 static void mov_create_chapter_track(AVFormatContext *s, int tracknum)
 {
     MOVMuxContext *mov = s->priv_data;
     MOVTrack *track = &mov->tracks[tracknum];
     AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
     int i, len;
 
     track->mode = mov->mode;
     track->tag = MKTAG('t','e','x','t');
     track->timescale = MOV_TIMESCALE;
     track->enc = avcodec_alloc_context();
     track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
 
     for (i = 0; i < s->nb_chapters; i++) {
         AVChapter *c = s->chapters[i];

         AVDictionaryEntry *t;

 
         int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,MOV_TIMESCALE});
         pkt.pts = pkt.dts = av_rescale_q(c->start, c->time_base, (AVRational){1,MOV_TIMESCALE});
         pkt.duration = end - pkt.dts;
 

         if ((t = av_dict_get(c->metadata, "title", NULL, 0))) {

             len = strlen(t->value);
             pkt.size = len+2;
             pkt.data = av_malloc(pkt.size);
             AV_WB16(pkt.data, len);
             memcpy(pkt.data+2, t->value, len);

             ff_mov_write_packet(s, &pkt);

             av_freep(&pkt.data);
         }
     }
 }
 

 static int mov_write_header(AVFormatContext *s)
 {

     AVIOContext *pb = s->pb;

     MOVMuxContext *mov = s->priv_data;

     int i, hint_track = 0;

     if (!s->pb->seekable) {

         av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n");
         return -1;
     }
 
     /* Default mode == MP4 */
     mov->mode = MODE_MP4;
 
     if (s->oformat != NULL) {
         if (!strcmp("3gp", s->oformat->name)) mov->mode = MODE_3GP;
         else if (!strcmp("3g2", s->oformat->name)) mov->mode = MODE_3GP|MODE_3G2;
         else if (!strcmp("mov", s->oformat->name)) mov->mode = MODE_MOV;
         else if (!strcmp("psp", s->oformat->name)) mov->mode = MODE_PSP;
         else if (!strcmp("ipod",s->oformat->name)) mov->mode = MODE_IPOD;
 
         mov_write_ftyp_tag(pb,s);
         if (mov->mode == MODE_PSP) {
             if (s->nb_streams != 2) {
                 av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n");
                 return -1;
             }
             mov_write_uuidprof_tag(pb,s);
         }
     }
 

     mov->nb_streams = s->nb_streams;
     if (mov->mode & (MODE_MOV|MODE_IPOD) && s->nb_chapters)
         mov->chapter_track = mov->nb_streams++;
 

 #if FF_API_FLAG_RTP_HINT

     if (s->flags & AVFMT_FLAG_RTP_HINT) {

         av_log(s, AV_LOG_WARNING, "The RTP_HINT flag is deprecated, enable it "
                                   "via the -movflags rtphint muxer option "
                                   "instead.\n");
         mov->flags |= FF_MOV_FLAG_RTP_HINT;
     }
 #endif
     if (mov->flags & FF_MOV_FLAG_RTP_HINT) {

         /* Add hint tracks for each audio and video stream */
         hint_track = mov->nb_streams;
         for (i = 0; i < s->nb_streams; i++) {
             AVStream *st = s->streams[i];
             if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
                 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
                 mov->nb_streams++;
             }
         }
     }
 

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

     if (!mov->tracks)
         return AVERROR(ENOMEM);
 
     for(i=0; i<s->nb_streams; i++){
         AVStream *st= s->streams[i];
         MOVTrack *track= &mov->tracks[i];

         AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0);

 
         track->enc = st->codec;
         track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV);
         if (track->language < 0)
             track->language = 0;
         track->mode = mov->mode;
         track->tag = mov_find_codec_tag(s, track);
         if (!track->tag) {
             av_log(s, AV_LOG_ERROR, "track %d: could not find tag, "
                    "codec not currently supported in container\n", i);
             goto error;
         }

         /* If hinting of this track is enabled by a later hint track,
          * this is updated. */
         track->hint_track = -1;

         if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
             if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') ||
                 track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') ||
                 track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) {
                 if (st->codec->width != 720 || (st->codec->height != 608 && st->codec->height != 512)) {
                     av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n");
                     goto error;
                 }
                 track->height = track->tag>>24 == 'n' ? 486 : 576;
             }
             track->timescale = st->codec->time_base.den;
             if (track->mode == MODE_MOV && track->timescale > 100000)
                 av_log(s, AV_LOG_WARNING,
                        "WARNING codec timebase is very high. If duration is too long,\n"
                        "file may not be playable by quicktime. Specify a shorter timebase\n"
                        "or choose different container.\n");
         }else if(st->codec->codec_type == AVMEDIA_TYPE_AUDIO){
             track->timescale = st->codec->sample_rate;
             if(!st->codec->frame_size && !av_get_bits_per_sample(st->codec->codec_id)) {
                 av_log(s, AV_LOG_ERROR, "track %d: codec frame size is not set\n", i);
                 goto error;

             }else if(st->codec->codec_id == CODEC_ID_ADPCM_MS ||
                      st->codec->codec_id == CODEC_ID_ADPCM_IMA_WAV){
                 if (!st->codec->block_align) {
                     av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i);
                     goto error;
                 }
                 track->sampleSize = st->codec->block_align;

             }else if(st->codec->frame_size > 1){ /* assume compressed audio */
                 track->audio_vbr = 1;
             }else{
                 st->codec->frame_size = 1;
                 track->sampleSize = (av_get_bits_per_sample(st->codec->codec_id) >> 3) * st->codec->channels;
             }
             if (track->mode != MODE_MOV) {
                 if (track->timescale > UINT16_MAX) {
                     av_log(s, AV_LOG_ERROR, "track %d: output format does not support "
                            "sample rate %dhz\n", i, track->timescale);
                     goto error;
                 }
                 if (track->enc->codec_id == CODEC_ID_MP3 && track->timescale < 16000) {
                     av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not supported\n",
                            i, track->enc->sample_rate);
                     goto error;
                 }
             }
         }else if(st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE){
             track->timescale = st->codec->time_base.den;
         }
         if (!track->height)
             track->height = st->codec->height;
 
         av_set_pts_info(st, 64, 1, track->timescale);
     }
 
     mov_write_mdat_tag(pb, mov);
     mov->time = s->timestamp + 0x7C25B080; //1970 based -> 1904 based

 
     if (mov->chapter_track)
         mov_create_chapter_track(s, mov->chapter_track);

     if (mov->flags & FF_MOV_FLAG_RTP_HINT) {

         /* Initialize the hint tracks for each audio and video stream */
         for (i = 0; i < s->nb_streams; i++) {
             AVStream *st = s->streams[i];
             if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
                 st->codec->codec_type == AVMEDIA_TYPE_AUDIO) {
                 ff_mov_init_hinting(s, hint_track, i);
                 hint_track++;
             }
         }
     }
 

     avio_flush(pb);

 
     return 0;
  error:
     av_freep(&mov->tracks);
     return -1;
 }
 

 static int mov_write_trailer(AVFormatContext *s)
 {

     MOVMuxContext *mov = s->priv_data;

     AVIOContext *pb = s->pb;

     int res = 0;

     int i;

     int64_t moov_pos = avio_tell(pb);

 
     /* Write size of mdat tag */

     if (mov->mdat_size+8 <= UINT32_MAX) {

         avio_seek(pb, mov->mdat_pos, SEEK_SET);

         avio_wb32(pb, mov->mdat_size+8);

     } else {
         /* overwrite 'wide' placeholder atom */

         avio_seek(pb, mov->mdat_pos - 8, SEEK_SET);

         avio_wb32(pb, 1); /* special value: real atom size will be 64 bit value after tag field */

         ffio_wfourcc(pb, "mdat");

         avio_wb64(pb, mov->mdat_size+16);

     }

     avio_seek(pb, moov_pos, SEEK_SET);

     mov_write_moov_tag(pb, mov, s);

     if (mov->chapter_track)
         av_freep(&mov->tracks[mov->chapter_track].enc);
 

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

         if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
             ff_mov_close_hinting(&mov->tracks[i]);

         av_freep(&mov->tracks[i].cluster);
 

         if(mov->tracks[i].vosLen) av_free(mov->tracks[i].vosData);

     }

     avio_flush(pb);

     av_freep(&mov->tracks);
 

     return res;
 }
 

 #if CONFIG_MOV_MUXER

 AVOutputFormat ff_mov_muxer = {

     "mov",

     NULL_IF_CONFIG_SMALL("MOV format"),

     NULL,
     "mov",

     sizeof(MOVMuxContext),

     CODEC_ID_AAC,

     CODEC_ID_MPEG4,

     mov_write_header,

     ff_mov_write_packet,

     mov_write_trailer,

     .flags = AVFMT_GLOBALHEADER,

     .codec_tag = (const AVCodecTag* const []){codec_movvideo_tags, codec_movaudio_tags, 0},

     .priv_class = &mov_muxer_class,

 };

 #endif

 #if CONFIG_TGP_MUXER

 AVOutputFormat ff_tgp_muxer = {

     "3gp",

     NULL_IF_CONFIG_SMALL("3GP format"),

     NULL,
     "3gp",

     sizeof(MOVMuxContext),

     CODEC_ID_AMR_NB,
     CODEC_ID_H263,
     mov_write_header,

     ff_mov_write_packet,

     mov_write_trailer,

     .flags = AVFMT_GLOBALHEADER,

     .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},

     .priv_class = &mov_muxer_class,

 };

 #endif

 #if CONFIG_MP4_MUXER

 AVOutputFormat ff_mp4_muxer = {

     "mp4",

     NULL_IF_CONFIG_SMALL("MP4 format"),

     "application/mp4",

     "mp4",

     sizeof(MOVMuxContext),

     CODEC_ID_AAC,
     CODEC_ID_MPEG4,
     mov_write_header,

     ff_mov_write_packet,

     mov_write_trailer,

     .flags = AVFMT_GLOBALHEADER,

     .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},

     .priv_class = &mov_muxer_class,

 };

 #endif

 #if CONFIG_PSP_MUXER

 AVOutputFormat ff_psp_muxer = {

     "psp",

     NULL_IF_CONFIG_SMALL("PSP MP4 format"),

     NULL,
     "mp4,psp",

     sizeof(MOVMuxContext),

     CODEC_ID_AAC,
     CODEC_ID_MPEG4,
     mov_write_header,

     ff_mov_write_packet,

     mov_write_trailer,

     .flags = AVFMT_GLOBALHEADER,

     .codec_tag = (const AVCodecTag* const []){ff_mp4_obj_type, 0},

     .priv_class = &mov_muxer_class,

 };

 #endif

 #if CONFIG_TG2_MUXER

 AVOutputFormat ff_tg2_muxer = {

     "3g2",

     NULL_IF_CONFIG_SMALL("3GP2 format"),

     NULL,
     "3g2",

     sizeof(MOVMuxContext),

     CODEC_ID_AMR_NB,
     CODEC_ID_H263,
     mov_write_header,

     ff_mov_write_packet,

     mov_write_trailer,

     .flags = AVFMT_GLOBALHEADER,

     .codec_tag = (const AVCodecTag* const []){codec_3gp_tags, 0},

     .priv_class = &mov_muxer_class,

 };

 #endif

 #if CONFIG_IPOD_MUXER

 AVOutputFormat ff_ipod_muxer = {

     "ipod",

     NULL_IF_CONFIG_SMALL("iPod H.264 MP4 format"),

     "application/mp4",

     "m4v,m4a",

     sizeof(MOVMuxContext),

     CODEC_ID_AAC,
     CODEC_ID_H264,
     mov_write_header,

     ff_mov_write_packet,

     mov_write_trailer,
     .flags = AVFMT_GLOBALHEADER,

     .codec_tag = (const AVCodecTag* const []){codec_ipod_tags, 0},

     .priv_class = &mov_muxer_class,

 };
 #endif