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-rw-r--r--libavformat/movenc.c334
1 files changed, 306 insertions, 28 deletions
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 0463528362..2e8ef90e0e 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -4,20 +4,20 @@
* 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 Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -45,8 +45,11 @@
static const AVOption options[] = {
{ "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.dbl = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.dbl = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
+ { "moov_size", "maximum moov size so it can be placed at the begin", offsetof(MOVMuxContext, reserved_moov_size), AV_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 },
+ { "frag_size", "maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 },
+ { "frag_duration", "maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.dbl = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 },
FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
- { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.dbl = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
+ { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_INT, {.dbl = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
{ "iods_audio_profile", "iods audio profile atom.", offsetof(MOVMuxContext, iods_audio_profile), AV_OPT_TYPE_INT, {.dbl = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
{ "iods_video_profile", "iods video profile atom.", offsetof(MOVMuxContext, iods_video_profile), AV_OPT_TYPE_INT, {.dbl = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
{ NULL },
@@ -60,6 +63,8 @@ static const AVClass flavor ## _muxer_class = {\
.version = LIBAVUTIL_VERSION_INT,\
};
+static int update_first_fragment(AVFormatContext *s);
+
//FIXME support 64 bit variant with wide placeholders
static int64_t updateSize(AVIOContext *pb, int64_t pos)
{
@@ -84,8 +89,10 @@ static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
} else
ffio_wfourcc(pb, "stco");
avio_wb32(pb, 0); /* version & flags */
- avio_wb32(pb, track->entry); /* entry count */
+ avio_wb32(pb, track->chunkCount); /* entry count */
for (i=0; i<track->entry; i++) {
+ if(!track->cluster[i].chunkNum)
+ continue;
if(mode64 == 1)
avio_wb64(pb, track->cluster[i].pos);
else
@@ -143,11 +150,11 @@ static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
ffio_wfourcc(pb, "stsc");
avio_wb32(pb, 0); // version & flags
entryPos = avio_tell(pb);
- avio_wb32(pb, track->entry); // entry count
+ avio_wb32(pb, track->chunkCount); // entry count
for (i=0; i<track->entry; i++) {
- if(oldval != track->cluster[i].samplesInChunk)
+ if(oldval != track->cluster[i].samplesInChunk && track->cluster[i].chunkNum)
{
- avio_wb32(pb, i+1); // first chunk
+ avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
avio_wb32(pb, track->cluster[i].samplesInChunk); // samples per chunk
avio_wb32(pb, 0x1); // sample description index
oldval = track->cluster[i].samplesInChunk;
@@ -271,10 +278,20 @@ static void putDescr(AVIOContext *pb, int tag, unsigned int size)
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");
@@ -306,11 +323,10 @@ static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
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
- avio_wb32(pb, FFMAX(track->enc->bit_rate, track->enc->rc_max_rate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
- if(track->enc->rc_max_rate != track->enc->rc_min_rate || track->enc->rc_min_rate==0)
- avio_wb32(pb, 0); // vbr
- else
- avio_wb32(pb, track->enc->rc_max_rate); // avg bitrate
+ 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
@@ -1387,14 +1403,14 @@ static int mov_write_udta_sdp(AVIOContext *pb, AVFormatContext *ctx, int index)
return len + 24;
}
-static int mov_write_trak_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
+static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov, 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(!mov->fragments) // EDTS with fragments is tricky as we dont know the duration when its written
+ mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
if (track->tref_tag)
mov_write_tref_tag(pb, track);
mov_write_mdia_tag(pb, track);
@@ -1410,6 +1426,72 @@ static int mov_write_trak_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
return updateSize(pb, pos);
}
+static int mov_write_tfhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
+{
+ int64_t pos = avio_tell(pb);
+ int flags=1;
+
+ avio_wb32(pb, 0);
+ ffio_wfourcc(pb, "tfhd");
+ avio_w8(pb, 0);
+ avio_wb24(pb, flags);
+ avio_wb32(pb, track->trackID);
+
+ track->base_data_offset_pos= avio_tell(pb);
+ if (flags & 0x01) avio_wb64(pb, 0);
+
+ return updateSize(pb, pos);
+}
+
+static int mov_write_trun_tag(AVIOContext *pb, MOVTrack *track)
+{
+ int64_t pos = avio_tell(pb);
+ int sample_count= track->entry - track->cluster_write_index;
+ int tr_flags=0;
+ int i;
+
+ for(i=track->cluster_write_index; 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(duration != 1) tr_flags |= 0x100;
+ if(track->trex_size != track->cluster[i].size) tr_flags |= 0x200;
+ if(track->trex_flags != ((track->cluster[i].flags&MOV_SYNC_SAMPLE) ? 0x02000000 : 0x01010000))
+ tr_flags |= 0x400;
+ if(track->cluster[i].cts) tr_flags |= 0x800;
+ }
+
+ avio_wb32(pb, 0);
+ ffio_wfourcc(pb, "trun");
+ avio_w8(pb, 0);
+ avio_wb24(pb, tr_flags);
+ avio_wb32(pb, sample_count);
+ if(tr_flags&1) avio_wb32(pb, 0);
+
+ for(i=track->cluster_write_index; 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(tr_flags&0x100) avio_wb32(pb, duration);
+ if(tr_flags&0x200) avio_wb32(pb, track->cluster[i].size);
+ if(tr_flags&0x400) avio_wb32(pb, (track->cluster[i].flags&MOV_SYNC_SAMPLE) ? 0x02000000 : 0x01010000);
+ if(tr_flags&0x800) avio_wb32(pb, track->cluster[i].cts);
+ }
+
+ return updateSize(pb, pos);
+}
+
+static int mov_write_traf_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
+{
+ int64_t pos = avio_tell(pb);
+ avio_wb32(pb, 0); /* size */
+ ffio_wfourcc(pb, "traf");
+ mov_write_tfhd_tag(pb, track, st);
+ mov_write_trun_tag(pb, track);
+ return updateSize(pb, pos);
+}
+
static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov)
{
int i, has_audio = 0, has_video = 0;
@@ -1816,6 +1898,61 @@ static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s)
return 0;
}
+static void build_chunks(MOVTrack *trk)
+{
+ int i;
+ MOVIentry *chunk= &trk->cluster[0];
+ uint64_t chunkSize = chunk->size;
+ chunk->chunkNum= 1;
+ trk->chunkCount= 1;
+ for(i=1; i<trk->entry; i++){
+ if(chunk->pos + chunkSize == trk->cluster[i].pos){
+ chunkSize += trk->cluster[i].size;
+ chunk->samplesInChunk += trk->cluster[i].entries;
+ }else{
+ trk->cluster[i].chunkNum = chunk->chunkNum+1;
+ chunk=&trk->cluster[i];
+ chunkSize = chunk->size;
+ trk->chunkCount++;
+ }
+ }
+}
+
+static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
+{
+ int64_t pos = avio_tell(pb);
+ avio_wb32(pb, 0); /* size */
+ ffio_wfourcc(pb, "trex");
+
+ avio_w8(pb, 0);
+ avio_wb24(pb, 0);
+ avio_wb32(pb, track->trackID);
+ avio_wb32(pb, 1); // stsd_id
+ avio_wb32(pb, 1); // duration
+ track->trex_size= track->entry ? track->cluster[FFMIN(1, track->entry-1)].size : 1;
+ avio_wb32(pb, track->trex_size);
+ track->trex_flags= st->codec->codec_type != AVMEDIA_TYPE_VIDEO ? 0x02000000 : 0x01010000;
+ avio_wb32(pb, track->trex_flags);
+ return updateSize(pb, pos);
+}
+
+static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov,
+ AVFormatContext *s)
+{
+ int i;
+ int64_t pos = avio_tell(pb);
+ avio_wb32(pb, 0); /* size placeholder*/
+ ffio_wfourcc(pb, "mvex");
+
+ for (i=0; i<mov->nb_streams; i++) {
+ if(mov->tracks[i].entry > 0) {
+ mov_write_trex_tag(pb, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
+ }
+ }
+
+ return updateSize(pb, pos);
+}
+
static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
AVFormatContext *s)
{
@@ -1829,6 +1966,8 @@ static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
mov->tracks[i].time = mov->time;
mov->tracks[i].trackID = i+1;
+
+ build_chunks(&mov->tracks[i]);
}
if (mov->chapter_track)
@@ -1849,10 +1988,13 @@ static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *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);
+ mov_write_trak_tag(pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
}
}
+ if(mov->fragments)
+ mov_write_mvex_tag(pb, mov, s);
+
if (mov->mode == MODE_PSP)
mov_write_uuidusmt_tag(pb, s);
else
@@ -1861,6 +2003,36 @@ static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov,
return updateSize(pb, pos);
}
+static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov)
+{
+ int i;
+ int64_t pos = avio_tell(pb);
+ avio_wb32(pb, 0); /* size placeholder*/
+ ffio_wfourcc(pb, "mfhd");
+ avio_wb32(pb, 0);
+ avio_wb32(pb, mov->frag_seq_num++);
+
+ return updateSize(pb, pos); //FIXME replace by hardcoded num also above
+}
+
+static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov,
+ AVFormatContext *s)
+{
+ int i;
+ int64_t pos = avio_tell(pb);
+ avio_wb32(pb, 0); /* size placeholder*/
+ ffio_wfourcc(pb, "moof");
+
+ mov_write_mfhd_tag(pb, mov);
+ for (i=0; i<mov->nb_streams; i++) {
+ if(mov->tracks[i].entry > 0) {
+ mov_write_traf_tag(pb, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL);
+ }
+ }
+
+ 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)
@@ -2011,11 +2183,54 @@ static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags)
return 0;
}
+static int flush_cluster_buffer(AVFormatContext *s){
+ MOVMuxContext *mov = s->priv_data;
+ int i, j;
+ int has_data=0;
+
+ for (i=0; i<mov->nb_streams; i++){
+ MOVTrack *track= &mov->tracks[i];
+ if(track->entry != track->cluster_write_index)
+ has_data=1;
+ }
+
+ if(mov->frag_seq_num==0){
+ update_first_fragment(s);
+ mov->frag_seq_num++;
+ }else if(has_data) {
+ mov_write_moof_tag(s->pb, mov, s);
+ mov_write_mdat_tag(s->pb, mov);
+ for (i=0; i<mov->nb_streams; i++){
+ MOVTrack *track= &mov->tracks[i];
+ if(track->entry > 0) {
+ int64_t pos= avio_tell(s->pb);
+ avio_seek(s->pb, track->base_data_offset_pos, SEEK_SET);
+ avio_wb64(s->pb, pos);
+ avio_seek(s->pb, pos, SEEK_SET);
+ for(j=track->cluster_write_index; j<track->entry; j++){
+ avio_write(s->pb, track->cluster[j].data, track->cluster[j].size);
+ av_freep(&track->cluster[j].data);
+ }
+ }
+ }
+ updateSize(s->pb, mov->mdat_pos);
+ }
+ mov->mdat_size = 0;
+ for (i=0; i<mov->nb_streams; i++) {
+ MOVTrack *track= &mov->tracks[i];
+ track->cluster_write_index= track->entry;
+ }
+ avio_flush(s->pb);
+
+ 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];
+ AVStream *st = s->streams[pkt->stream_index];
AVCodecContext *enc = trk->enc;
unsigned int samplesInChunk = 0;
int size= pkt->size;
@@ -2024,6 +2239,13 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
if (!s->pb->seekable) return 0; /* Can't handle that */
if (!size) return 0; /* Discard 0 sized packets */
+ if (mov->fragments && trk->entry > trk->cluster_write_index &&
+ ( mov->max_fragment_duration && av_rescale_q(pkt->dts - trk->cluster[ trk->cluster_write_index ].dts, st->time_base, AV_TIME_BASE_Q) >= mov->max_fragment_duration
+ || mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size)
+ ){
+ flush_cluster_buffer(s);
+ }
+
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] =
@@ -2050,16 +2272,44 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
memcpy(trk->vosData, enc->extradata, trk->vosLen);
}
+ 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;
+ }
+
if (enc->codec_id == CODEC_ID_H264 && trk->vosLen > 0 && *(uint8_t *)trk->vosData != 1) {
/* from x264 or from bytestream h264 */
/* nal reformating needed */
- if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
+ if(mov->frag_seq_num>0){
+ uint8_t *buf=NULL;
+ size= pkt->size;
+
+ if(ff_avc_parse_nal_units_buf(pkt->data, &buf, &size) < 0){
+ av_log(s, AV_LOG_ERROR, "malformated H264 bitstream\n");
+ return -1;
+ }
+ trk->cluster[trk->entry].data= buf;
+ if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
+ reformatted_data= av_malloc(size);
+ memcpy(reformatted_data, buf, size);
+ }
+ }else if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data,
&size);
avio_write(pb, reformatted_data, size);
} else {
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 if (mov->frag_seq_num>0){
+ trk->cluster[trk->entry].data = av_malloc(size);
+ if (!trk->cluster[trk->entry].data)
+ return AVERROR(ENOMEM);
+ memcpy(trk->cluster[trk->entry].data, pkt->data, size);
} else {
avio_write(pb, pkt->data, size);
}
@@ -2074,14 +2324,9 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
memcpy(trk->vosData, pkt->data, size);
}
- if (!(trk->entry % MOV_INDEX_CLUSTER_SIZE)) {
- trk->cluster = av_realloc(trk->cluster, (trk->entry + MOV_INDEX_CLUSTER_SIZE) * sizeof(*trk->cluster));
- if (!trk->cluster)
- return -1;
- }
-
- trk->cluster[trk->entry].pos = avio_tell(pb) - size;
+ trk->cluster[trk->entry].pos = avio_tell(pb) - (mov->frag_seq_num==0 ? size : 0);
trk->cluster[trk->entry].samplesInChunk = samplesInChunk;
+ trk->cluster[trk->entry].chunkNum = 0;
trk->cluster[trk->entry].size = size;
trk->cluster[trk->entry].entries = samplesInChunk;
trk->cluster[trk->entry].dts = pkt->dts;
@@ -2170,6 +2415,10 @@ static int mov_write_header(AVFormatContext *s)
/* Default mode == MP4 */
mov->mode = MODE_MP4;
+ if(mov->max_fragment_duration || mov->max_fragment_size){
+ mov->fragments= 1;
+ }
+
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;
@@ -2289,6 +2538,11 @@ static int mov_write_header(AVFormatContext *s)
avpriv_set_pts_info(st, 64, 1, track->timescale);
}
+ if(mov->reserved_moov_size){
+ mov->reserved_moov_pos= avio_tell(pb);
+ avio_skip(pb, mov->reserved_moov_size);
+ }
+
mov_write_mdat_tag(pb, mov);
#if FF_API_TIMESTAMP
@@ -2323,7 +2577,7 @@ static int mov_write_header(AVFormatContext *s)
return -1;
}
-static int mov_write_trailer(AVFormatContext *s)
+static int update_first_fragment(AVFormatContext *s)
{
MOVMuxContext *mov = s->priv_data;
AVIOContext *pb = s->pb;
@@ -2343,9 +2597,33 @@ static int mov_write_trailer(AVFormatContext *s)
ffio_wfourcc(pb, "mdat");
avio_wb64(pb, mov->mdat_size+16);
}
- avio_seek(pb, moov_pos, SEEK_SET);
+ avio_seek(pb, mov->reserved_moov_size ? mov->reserved_moov_pos : moov_pos, SEEK_SET);
mov_write_moov_tag(pb, mov, s);
+ if(mov->reserved_moov_size){
+ int64_t size= mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_moov_pos);
+ if(size < 8){
+ av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size);
+ return -1;
+ }
+ avio_wb32(pb, size);
+ ffio_wfourcc(pb, "free");
+ for(i=0; i<size; i++)
+ avio_w8(pb, 0);
+ avio_seek(pb, moov_pos, SEEK_SET);
+ }
+
+ return 0;
+}
+
+static int mov_write_trailer(AVFormatContext *s)
+{
+ MOVMuxContext *mov = s->priv_data;
+ AVIOContext *pb = s->pb;
+ int res = 0;
+ int i;
+
+ flush_cluster_buffer(s);
if (mov->chapter_track)
av_freep(&mov->tracks[mov->chapter_track].enc);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-17 16:18:50 +0000