from:"Matthew Gregan"

[FFmpeg-cvslog] avformat/mo: Add experimental demuxing support for Opus in ISO BMFF (MP4).

2017-04-11 Thread Matthew Gregan

ffmpeg | branch: master | Matthew Gregan  | Thu Mar 16 
14:17:21 2017 +1300| [3041b5d03ba3ea5be7f54be62ffa2a586d0fce43] | committer: 
Michael Niedermayer

avformat/mo: Add experimental demuxing support for Opus in ISO BMFF (MP4).

Based on the draft spec at 
http://vfrmaniac.fushizen.eu/contents/opus_in_isobmff.html

Signed-off-by: Matthew Gregan 
Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3041b5d03ba3ea5be7f54be62ffa2a586d0fce43
---

 libavformat/mov.c | 49 +
 1 file changed, 49 insertions(+)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index f2296f8917..2995a009a8 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -5264,6 +5264,54 @@ static int cenc_filter(MOVContext *c, MOVStreamContext 
*sc, int64_t index, uint8
 return 0;
 }
 
+static int mov_read_dops(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+const int OPUS_SEEK_PREROLL_MS = 80;
+AVStream *st;
+size_t size;
+int16_t pre_skip;
+
+if (c->fc->nb_streams < 1)
+return 0;
+st = c->fc->streams[c->fc->nb_streams-1];
+
+if ((uint64_t)atom.size > (1<<30) || atom.size < 11)
+return AVERROR_INVALIDDATA;
+
+/* Check OpusSpecificBox version. */
+if (avio_r8(pb) != 0) {
+av_log(c->fc, AV_LOG_ERROR, "unsupported OpusSpecificBox version\n");
+return AVERROR_INVALIDDATA;
+}
+
+/* OpusSpecificBox size plus magic for Ogg OpusHead header. */
+size = atom.size + 8;
+
+if (ff_alloc_extradata(st->codecpar, size))
+return AVERROR(ENOMEM);
+
+AV_WL32(st->codecpar->extradata, MKTAG('O','p','u','s'));
+AV_WL32(st->codecpar->extradata + 4, MKTAG('H','e','a','d'));
+AV_WB8(st->codecpar->extradata + 8, 1); /* OpusHead version */
+avio_read(pb, st->codecpar->extradata + 9, size - 9);
+
+/* OpusSpecificBox is stored in big-endian, but OpusHead is
+   little-endian; aside from the preceeding magic and version they're
+   otherwise currently identical.  Data after output gain at offset 16
+   doesn't need to be bytewapped. */
+pre_skip = AV_RB16(st->codecpar->extradata + 10);
+AV_WL16(st->codecpar->extradata + 10, pre_skip);
+AV_WL32(st->codecpar->extradata + 12, AV_RB32(st->codecpar->extradata + 
12));
+AV_WL16(st->codecpar->extradata + 16, AV_RB16(st->codecpar->extradata + 
16));
+
+st->codecpar->initial_padding = pre_skip;
+st->codecpar->seek_preroll = av_rescale_q(OPUS_SEEK_PREROLL_MS,
+  (AVRational){1, 1000},
+  (AVRational){1, 48000});
+
+return 0;
+}
+
 static const MOVParseTableEntry mov_default_parse_table[] = {
 { MKTAG('A','C','L','R'), mov_read_aclr },
 { MKTAG('A','P','R','G'), mov_read_avid },
@@ -5345,6 +5393,7 @@ static const MOVParseTableEntry mov_default_parse_table[] 
= {
 { MKTAG('d','f','L','a'), mov_read_dfla },
 { MKTAG('s','t','3','d'), mov_read_st3d }, /* stereoscopic 3D video box */
 { MKTAG('s','v','3','d'), mov_read_sv3d }, /* spherical video box */
+{ MKTAG('d','O','p','s'), mov_read_dops },
 { 0, NULL }
 };
 

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[FFmpeg-cvslog] avformat/movenc: Add experimental muxing support for Opus in ISO BMFF (MP4).

2017-04-11 Thread Matthew Gregan

ffmpeg | branch: master | Matthew Gregan  | Thu Mar 16 
14:17:12 2017 +1300| [0c4d2082961f23bb8d5b8f9e963bbecf4147d699] | committer: 
Michael Niedermayer

avformat/movenc: Add experimental muxing support for Opus in ISO BMFF (MP4).

Based on the draft spec at 
http://vfrmaniac.fushizen.eu/contents/opus_in_isobmff.html

'-strict -2' is required to create files in this format.

Signed-off-by: Matthew Gregan 
Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0c4d2082961f23bb8d5b8f9e963bbecf4147d699
---

 libavformat/isom.c   |   2 +
 libavformat/movenc.c | 137 ---
 2 files changed, 131 insertions(+), 8 deletions(-)

diff --git a/libavformat/isom.c b/libavformat/isom.c
index 7da2700842..3a932dae08 100644
--- a/libavformat/isom.c
+++ b/libavformat/isom.c
@@ -59,6 +59,7 @@ const AVCodecTag ff_mp4_obj_type[] = {
 { AV_CODEC_ID_AC3 , 0xA5 },
 { AV_CODEC_ID_EAC3, 0xA6 },
 { AV_CODEC_ID_DTS , 0xA9 }, /* mp4ra.org */
+{ AV_CODEC_ID_OPUS, 0xAD }, /* mp4ra.org */
 { AV_CODEC_ID_VP9 , 0xC0 }, /* nonstandard, update when there is a 
standard value */
 { AV_CODEC_ID_FLAC, 0xC1 }, /* nonstandard, update when there is a 
standard value */
 { AV_CODEC_ID_TSCC2   , 0xD0 }, /* nonstandard, camtasia uses it */
@@ -357,6 +358,7 @@ const AVCodecTag ff_codec_movaudio_tags[] = {
 { AV_CODEC_ID_EVRC,MKTAG('s', 'e', 'v', 'c') }, /* 3GPP2 */
 { AV_CODEC_ID_SMV, MKTAG('s', 's', 'm', 'v') }, /* 3GPP2 */
 { AV_CODEC_ID_FLAC,MKTAG('f', 'L', 'a', 'C') }, /* nonstandard 
*/
+{ AV_CODEC_ID_OPUS,MKTAG('O', 'p', 'u', 's') }, /* mp4ra.org */
 { AV_CODEC_ID_NONE, 0 },
 };
 
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 9280dc8d23..f511924fd7 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -677,6 +677,29 @@ static int mov_write_dfla_tag(AVIOContext *pb, MOVTrack 
*track)
 return update_size(pb, pos);
 }
 
+static int mov_write_dops_tag(AVIOContext *pb, MOVTrack *track)
+{
+int64_t pos = avio_tell(pb);
+avio_wb32(pb, 0);
+ffio_wfourcc(pb, "dOps");
+avio_w8(pb, 0); /* Version */
+if (track->par->extradata_size < 19) {
+av_log(pb, AV_LOG_ERROR, "invalid extradata size\n");
+return AVERROR_INVALIDDATA;
+}
+/* extradata contains an Ogg OpusHead, other than byte-ordering and
+   OpusHead's preceeding magic/version, OpusSpecificBox is currently
+   identical. */
+avio_w8(pb, AV_RB8(track->par->extradata + 9)); /* OuputChannelCount */
+avio_wb16(pb, AV_RL16(track->par->extradata + 10)); /* PreSkip */
+avio_wb32(pb, AV_RL32(track->par->extradata + 12)); /* InputSampleRate */
+avio_wb16(pb, AV_RL16(track->par->extradata + 16)); /* OutputGain */
+/* Write the rest of the header out without byte-swapping. */
+avio_write(pb, track->par->extradata + 18, track->par->extradata_size - 
18);
+
+return update_size(pb, pos);
+}
+
 static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack 
*track)
 {
 uint32_t layout_tag, bitmap;
@@ -986,19 +1009,26 @@ static int mov_write_audio_tag(AVFormatContext *s, 
AVIOContext *pb, MOVMuxContex
 avio_wb16(pb, 16);
 avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
 } else { /* reserved for mp4/3gp */
-if (track->par->codec_id == AV_CODEC_ID_FLAC) {
+if (track->par->codec_id == AV_CODEC_ID_FLAC ||
+track->par->codec_id == AV_CODEC_ID_OPUS) {
 avio_wb16(pb, track->par->channels);
-avio_wb16(pb, track->par->bits_per_raw_sample);
 } else {
 avio_wb16(pb, 2);
+}
+if (track->par->codec_id == AV_CODEC_ID_FLAC) {
+avio_wb16(pb, track->par->bits_per_raw_sample);
+} else {
 avio_wb16(pb, 16);
 }
 avio_wb16(pb, 0);
 }
 
 avio_wb16(pb, 0); /* packet size (= 0) */
-avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
-  track->par->sample_rate : 0);
+if (track->par->codec_id == AV_CODEC_ID_OPUS)
+avio_wb16(pb, 48000);
+else
+avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ?
+  track->par->sample_rate : 0);
 avio_wb16(pb, 0); /* Reserved */
 }
 
@@ -1039,6 +1069,8 @@ static int mov_write_audio_tag(AVFormatContext *s, 
AVIOContext *pb, MOVMuxContex
 mov_write_wfex_tag(s, pb, tr

[FFmpeg-cvslog] avformat/movenc: Fix potential leak of sgpd_entries array.

2017-04-12 Thread Matthew Gregan

ffmpeg | branch: master | Matthew Gregan  | Wed Apr 12 
14:12:17 2017 +1200| [b905ba5bc18c89c7fccd862179575562ef19] | committer: 
Michael Niedermayer

avformat/movenc: Fix potential leak of sgpd_entries array.

Signed-off-by: Matthew Gregan 
Signed-off-by: Michael Niedermayer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b905ba5bc18c89c7fccd862179575562ef19
---

 libavformat/movenc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index e6a70bffc0..e6e2313c53 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -2286,8 +2286,10 @@ static int mov_preroll_write_stbl_atoms(AVIOContext *pb, 
MOVTrack *track)
 }
 entries++;
 
-if (!group)
+if (!group) {
+av_free(sgpd_entries);
 return 0;
+}
 
 /* Write sgpd tag */
 avio_wb32(pb, 24 + (group * 2)); /* size */

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[FFmpeg-cvslog] Add experimental muxing support for FLAC in ISO BMFF (MP4).

2016-11-21 Thread Matthew Gregan

ffmpeg | branch: master | Matthew Gregan  | Thu Oct 20 
17:28:11 2016 +1300| [7dc4200c3828195ef33c8a6572891ecda5058cd6] | committer: 
James Almer

Add experimental muxing support for FLAC in ISO BMFF (MP4).

Based on the draft spec at 
https://git.xiph.org/?p=flac.git;a=blob;f=doc/isoflac.txt

'-strict experimental' is required to create files in this format.

Signed-off-by: Matthew Gregan 
Signed-off-by: James Almer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7dc4200c3828195ef33c8a6572891ecda5058cd6
---

 libavformat/isom.c   |  2 ++
 libavformat/movenc.c | 49 ++---
 2 files changed, 48 insertions(+), 3 deletions(-)

diff --git a/libavformat/isom.c b/libavformat/isom.c
index 1fa46bd..cd0b0b7 100644
--- a/libavformat/isom.c
+++ b/libavformat/isom.c
@@ -60,6 +60,7 @@ const AVCodecTag ff_mp4_obj_type[] = {
 { AV_CODEC_ID_EAC3, 0xA6 },
 { AV_CODEC_ID_DTS , 0xA9 }, /* mp4ra.org */
 { AV_CODEC_ID_VP9 , 0xC0 }, /* nonstandard, update when there is a 
standard value */
+{ AV_CODEC_ID_FLAC, 0xC1 }, /* nonstandard, update when there is a 
standard value */
 { AV_CODEC_ID_TSCC2   , 0xD0 }, /* nonstandard, camtasia uses it */
 { AV_CODEC_ID_VORBIS  , 0xDD }, /* nonstandard, gpac uses it */
 { AV_CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* nonstandard, see 
unsupported-embedded-subs-2.mp4 */
@@ -345,6 +346,7 @@ const AVCodecTag ff_codec_movaudio_tags[] = {
 { AV_CODEC_ID_WMAV2,   MKTAG('W', 'M', 'A', '2') },
 { AV_CODEC_ID_EVRC,MKTAG('s', 'e', 'v', 'c') }, /* 3GPP2 */
 { AV_CODEC_ID_SMV, MKTAG('s', 's', 'm', 'v') }, /* 3GPP2 */
+{ AV_CODEC_ID_FLAC,MKTAG('f', 'L', 'a', 'C') }, /* nonstandard 
*/
 { AV_CODEC_ID_NONE, 0 },
 };
 
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 5452ff7..e75a5c5 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -33,6 +33,7 @@
 #include "avc.h"
 #include "libavcodec/ac3_parser.h"
 #include "libavcodec/dnxhddata.h"
+#include "libavcodec/flac.h"
 #include "libavcodec/get_bits.h"
 #include "libavcodec/put_bits.h"
 #include "libavcodec/vc1_common.h"
@@ -655,6 +656,26 @@ static int mov_write_wfex_tag(AVFormatContext *s, 
AVIOContext *pb, MOVTrack *tra
 return update_size(pb, pos);
 }
 
+static int mov_write_dfla_tag(AVIOContext *pb, MOVTrack *track)
+{
+int64_t pos = avio_tell(pb);
+avio_wb32(pb, 0);
+ffio_wfourcc(pb, "dfLa");
+avio_w8(pb, 0); /* version */
+avio_wb24(pb, 0); /* flags */
+
+/* Expect the encoder to pass a METADATA_BLOCK_TYPE_STREAMINFO. */
+if (track->par->extradata_size != FLAC_STREAMINFO_SIZE)
+return AVERROR_INVALIDDATA;
+
+/* TODO: Write other METADATA_BLOCK_TYPEs if the encoder makes them 
available. */
+avio_w8(pb, 1 << 7 | FLAC_METADATA_TYPE_STREAMINFO); /* 
LastMetadataBlockFlag << 7 | BlockType */
+avio_wb24(pb, track->par->extradata_size); /* Length */
+avio_write(pb, track->par->extradata, track->par->extradata_size); /* 
BlockData[Length] */
+
+return update_size(pb, pos);
+}
+
 static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack 
*track)
 {
 uint32_t layout_tag, bitmap;
@@ -964,8 +985,13 @@ static int mov_write_audio_tag(AVFormatContext *s, 
AVIOContext *pb, MOVMuxContex
 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);
+if (track->par->codec_id == AV_CODEC_ID_FLAC) {
+avio_wb16(pb, track->par->channels);
+avio_wb16(pb, track->par->bits_per_raw_sample);
+} else {
+avio_wb16(pb, 2);
+avio_wb16(pb, 16);
+}
 avio_wb16(pb, 0);
 }
 
@@ -1010,6 +1036,8 @@ static int mov_write_audio_tag(AVFormatContext *s, 
AVIOContext *pb, MOVMuxContex
 mov_write_extradata_tag(pb, track);
 else if (track->par->codec_id == AV_CODEC_ID_WMAPRO)
 mov_write_wfex_tag(s, pb, track);
+else if (track->par->codec_id == AV_CODEC_ID_FLAC)
+mov_write_dfla_tag(pb, track);
 else if (track->vos_len > 0)
 mov_write_glbl_tag(pb, track);
 
@@ -1178,6 +1206,7 @@ static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack 
*track)
 else if (track->par->codec_id == AV_CODEC_ID_DIRAC) tag = 
MKTAG('d','r','a','c');
 else if (track->par->codec_id == AV_CODEC_ID_MOV_TEXT)  tag = 
MKTAG('t',

[FFmpeg-cvslog] Add experimental demuxing support for FLAC in ISO BMFF (MP4).

2016-11-21 Thread Matthew Gregan

ffmpeg | branch: master | Matthew Gregan  | Fri Oct 21 
16:10:43 2016 +1300| [2d73d25670ced04a7ef7e0936e340292816ef7db] | committer: 
James Almer

Add experimental demuxing support for FLAC in ISO BMFF (MP4).

Based on the draft spec at 
https://git.xiph.org/?p=flac.git;a=blob;f=doc/isoflac.txt

Signed-off-by: Matthew Gregan 
Signed-off-by: James Almer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2d73d25670ced04a7ef7e0936e340292816ef7db
---

 libavformat/mov.c | 39 +++
 1 file changed, 39 insertions(+)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 9cd0398..9bbb155 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -44,6 +44,7 @@
 #include "libavutil/sha.h"
 #include "libavutil/timecode.h"
 #include "libavcodec/ac3tab.h"
+#include "libavcodec/flac.h"
 #include "libavcodec/mpegaudiodecheader.h"
 #include "avformat.h"
 #include "internal.h"
@@ -4742,6 +4743,43 @@ static int mov_read_saiz(MOVContext *c, AVIOContext *pb, 
MOVAtom atom)
 return 0;
 }
 
+static int mov_read_dfla(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+AVStream *st;
+int last, type, size, ret;
+uint8_t buf[4];
+
+if (c->fc->nb_streams < 1)
+return 0;
+st = c->fc->streams[c->fc->nb_streams-1];
+
+if ((uint64_t)atom.size > (1<<30) || atom.size < 42)
+return AVERROR_INVALIDDATA;
+
+/* Check FlacSpecificBox version. */
+if (avio_r8(pb) != 0)
+return AVERROR_INVALIDDATA;
+
+avio_rb24(pb); /* Flags */
+
+avio_read(pb, buf, sizeof(buf));
+flac_parse_block_header(buf, &last, &type, &size);
+
+if (type != FLAC_METADATA_TYPE_STREAMINFO || size != FLAC_STREAMINFO_SIZE) 
{
+av_log(c->fc, AV_LOG_ERROR, "STREAMINFO must be first 
FLACMetadataBlock\n");
+return AVERROR_INVALIDDATA;
+}
+
+ret = ff_get_extradata(c->fc, st->codecpar, pb, size);
+if (ret < 0)
+return ret;
+
+if (!last)
+av_log(c->fc, AV_LOG_WARNING, "non-STREAMINFO FLACMetadataBlock(s) 
ignored\n");
+
+return 0;
+}
+
 static int cenc_filter(MOVContext *c, MOVStreamContext *sc, uint8_t *input, 
int size)
 {
 uint32_t encrypted_bytes;
@@ -4916,6 +4954,7 @@ static const MOVParseTableEntry mov_default_parse_table[] 
= {
 { MKTAG('f','r','m','a'), mov_read_frma },
 { MKTAG('s','e','n','c'), mov_read_senc },
 { MKTAG('s','a','i','z'), mov_read_saiz },
+{ MKTAG('d','f','L','a'), mov_read_dfla },
 { 0, NULL }
 };
 

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[FFmpeg-cvslog] avformat/movenc: Restrict experimental VP9 support to MODE_MP4.

2016-11-21 Thread Matthew Gregan

ffmpeg | branch: master | Matthew Gregan  | Fri Nov 18 
16:29:42 2016 +1300| [156fbbb562f36f6dcaf363fb3029834c28519dc7] | committer: 
James Almer

avformat/movenc: Restrict experimental VP9 support to MODE_MP4.

Signed-off-by: Matthew Gregan 
Signed-off-by: James Almer 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=156fbbb562f36f6dcaf363fb3029834c28519dc7
---

 libavformat/movenc.c | 7 +--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index e75a5c5..dc19838 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -5744,8 +5744,11 @@ static int mov_init(AVFormatContext *s)
 pix_fmt == AV_PIX_FMT_MONOWHITE ||
 pix_fmt == AV_PIX_FMT_MONOBLACK;
 }
-if (track->mode == MODE_MP4 &&
-track->par->codec_id == AV_CODEC_ID_VP9) {
+if (track->par->codec_id == AV_CODEC_ID_VP9) {
+if (track->mode != MODE_MP4) {
+av_log(s, AV_LOG_ERROR, "VP9 only supported in MP4.\n");
+return AVERROR(EINVAL);
+}
 if (s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
 av_log(s, AV_LOG_ERROR,
"VP9 in MP4 support is experimental, add "

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[FFmpeg-cvslog] avformat/mov: Enable stream parsing for VP9.

2016-09-08 Thread Matthew Gregan

ffmpeg | branch: master | Matthew Gregan  | Wed Sep  7 
13:58:30 2016 +1200| [7b3bc365f9923e30a925f8dece4fddd127a54c5d] | committer: 
Ronald S. Bultje

avformat/mov: Enable stream parsing for VP9.

MP4 media containing VP9 using superframes (such as
https://github.com/Netflix/vp9-dash/raw/master/DASH-Samples/Fountain_2997_0560kbps_640x480_4x3PAR.ivf_DashUnencrypted.ismv)
does not decode correctly with the built-in VP9 decoder because
superframes are passed to the decoder whole rather than split into
individual frames.

Signed-off-by: Matthew Gregan 

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7b3bc365f9923e30a925f8dece4fddd127a54c5d
---

 libavformat/mov.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index a7595c5..6e80b93 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -2161,6 +2161,7 @@ static int mov_finalize_stsd_codec(MOVContext *c, 
AVIOContext *pb,
 case AV_CODEC_ID_EAC3:
 case AV_CODEC_ID_MPEG1VIDEO:
 case AV_CODEC_ID_VC1:
+case AV_CODEC_ID_VP9:
 st->need_parsing = AVSTREAM_PARSE_FULL;
 break;
 default:

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[FFmpeg-cvslog] avformat/mo: Add experimental demuxing support for Opus in ISO BMFF (MP4).

[FFmpeg-cvslog] avformat/movenc: Add experimental muxing support for Opus in ISO BMFF (MP4).

[FFmpeg-cvslog] avformat/movenc: Fix potential leak of sgpd_entries array.

[FFmpeg-cvslog] Add experimental muxing support for FLAC in ISO BMFF (MP4).

[FFmpeg-cvslog] Add experimental demuxing support for FLAC in ISO BMFF (MP4).

[FFmpeg-cvslog] avformat/movenc: Restrict experimental VP9 support to MODE_MP4.

[FFmpeg-cvslog] avformat/mov: Enable stream parsing for VP9.

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