Message ID | 20171129041105.16748-2-mindmark@gmail.com |
---|---|
State | Superseded |
Headers | show |
On 2017-11-29 05:11, Mark Reid wrote: > @@ -980,7 +980,7 @@ static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, MXF > > // write uid > mxf_write_local_tag(pb, 16, 0x3C0A); > - mxf_write_uuid(pb, package->type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index); > + mxf_write_uuid(pb, SourceClip, mxf->track_uuid_offset); > > PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16); > mxf_write_common_fields(s, st); > @@ -1357,7 +1357,7 @@ static void mxf_write_package(AVFormatContext *s, MXFPackage *package) > > // write package umid > mxf_write_local_tag(pb, 32, 0x4401); > - mxf_write_umid(s, package->type == SourcePackage); > + mxf_write_umid(s, package->instance); > PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16); > > // package name > @@ -1375,10 +1375,9 @@ static void mxf_write_package(AVFormatContext *s, MXFPackage *package) > // write track refs > mxf_write_local_tag(pb, track_count*16 + 8, 0x4403); > mxf_write_refs_count(pb, track_count); > - mxf_write_uuid(pb, package->type == MaterialPackage ? Track : > - Track + TypeBottom, -1); // timecode track > + mxf_write_uuid(pb, Track, mxf->track_uuid_offset); // timecode track > for (i = 0; i < s->nb_streams; i++) > - mxf_write_uuid(pb, package->type == MaterialPackage ? Track : Track + TypeBottom, i); > + mxf_write_uuid(pb, Track, mxf->track_uuid_offset + i + 1); Do these refer to tracks that are about to be written? Seems so as best I can tell, so I guess it works. I'd be happier if the referencing was done more explicitly rather than implicitly > > // write user comment refs > if (mxf->store_user_comments) { > @@ -1402,12 +1401,14 @@ static void mxf_write_package(AVFormatContext *s, MXFPackage *package) > mxf_write_track(s, mxf->timecode_track, package); > mxf_write_sequence(s, mxf->timecode_track, package); > mxf_write_timecode_component(s, mxf->timecode_track, package); > + mxf->track_uuid_offset++; > > for (i = 0; i < s->nb_streams; i++) { > AVStream *st = s->streams[i]; > mxf_write_track(s, st, package); > mxf_write_sequence(s, st, package); > mxf_write_structural_component(s, st, package); > + mxf->track_uuid_offset++; > /Tomas
On Wed, Nov 29, 2017 at 1:36 AM, Tomas Härdin <tjoppen@acc.umu.se> wrote: > On 2017-11-29 05:11, Mark Reid wrote: > >> @@ -980,7 +980,7 @@ static void mxf_write_structural_component(AVFormatContext >> *s, AVStream *st, MXF >> // write uid >> mxf_write_local_tag(pb, 16, 0x3C0A); >> - mxf_write_uuid(pb, package->type == MaterialPackage ? SourceClip: >> SourceClip + TypeBottom, st->index); >> + mxf_write_uuid(pb, SourceClip, mxf->track_uuid_offset); >> PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16); >> mxf_write_common_fields(s, st); >> @@ -1357,7 +1357,7 @@ static void mxf_write_package(AVFormatContext *s, >> MXFPackage *package) >> // write package umid >> mxf_write_local_tag(pb, 32, 0x4401); >> - mxf_write_umid(s, package->type == SourcePackage); >> + mxf_write_umid(s, package->instance); >> PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16); >> // package name >> @@ -1375,10 +1375,9 @@ static void mxf_write_package(AVFormatContext *s, >> MXFPackage *package) >> // write track refs >> mxf_write_local_tag(pb, track_count*16 + 8, 0x4403); >> mxf_write_refs_count(pb, track_count); >> - mxf_write_uuid(pb, package->type == MaterialPackage ? Track : >> - Track + TypeBottom, -1); // timecode track >> + mxf_write_uuid(pb, Track, mxf->track_uuid_offset); // timecode track >> for (i = 0; i < s->nb_streams; i++) >> - mxf_write_uuid(pb, package->type == MaterialPackage ? Track : >> Track + TypeBottom, i); >> + mxf_write_uuid(pb, Track, mxf->track_uuid_offset + i + 1); >> > > Do these refer to tracks that are about to be written? Seems so as best I > can tell, so I guess it works. I'd be happier if the referencing was done > more explicitly rather than implicitly yes they refer to the tracks about to be written. Those uuids need to match the uuid instance tag (0x3C0A) on a track written in mxf_write_track. then the uuid ref on the track needs to match the one on the sequence, and then the one the sequence needs to match the one on the component. would you rather the instance id be a argument to each of the write functions? for example: mxf_write_package(AVFormatContext *s, MXFPackage *package, int track_uuid_offset) mxf_write_track(AVFormatContext *s, AVStream *st, MXFPackage *package, int instance_id) would that be more explicit? > > // write user comment refs >> if (mxf->store_user_comments) { >> @@ -1402,12 +1401,14 @@ static void mxf_write_package(AVFormatContext >> *s, MXFPackage *package) >> mxf_write_track(s, mxf->timecode_track, package); >> mxf_write_sequence(s, mxf->timecode_track, package); >> mxf_write_timecode_component(s, mxf->timecode_track, package); >> + mxf->track_uuid_offset++; >> for (i = 0; i < s->nb_streams; i++) { >> AVStream *st = s->streams[i]; >> mxf_write_track(s, st, package); >> mxf_write_sequence(s, st, package); >> mxf_write_structural_component(s, st, package); >> + mxf->track_uuid_offset++; >> >> > > /Tomas > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel >
On Wed, 2017-11-29 at 20:18 -0800, Mark Reid wrote: > On Wed, Nov 29, 2017 at 1:36 AM, Tomas Härdin <tjoppen@acc.umu.se> > wrote: > > > On 2017-11-29 05:11, Mark Reid wrote: > > > > > @@ -980,7 +980,7 @@ static void > > > mxf_write_structural_component(AVFormatContext > > > *s, AVStream *st, MXF > > > // write uid > > > mxf_write_local_tag(pb, 16, 0x3C0A); > > > - mxf_write_uuid(pb, package->type == MaterialPackage ? > > > SourceClip: > > > SourceClip + TypeBottom, st->index); > > > + mxf_write_uuid(pb, SourceClip, mxf->track_uuid_offset); > > > PRINT_KEY(s, "structural component uid", pb->buf_ptr - > > > 16); > > > mxf_write_common_fields(s, st); > > > @@ -1357,7 +1357,7 @@ static void > > > mxf_write_package(AVFormatContext *s, > > > MXFPackage *package) > > > // write package umid > > > mxf_write_local_tag(pb, 32, 0x4401); > > > - mxf_write_umid(s, package->type == SourcePackage); > > > + mxf_write_umid(s, package->instance); > > > PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16); > > > // package name > > > @@ -1375,10 +1375,9 @@ static void > > > mxf_write_package(AVFormatContext *s, > > > MXFPackage *package) > > > // write track refs > > > mxf_write_local_tag(pb, track_count*16 + 8, 0x4403); > > > mxf_write_refs_count(pb, track_count); > > > - mxf_write_uuid(pb, package->type == MaterialPackage ? Track > > > : > > > - Track + TypeBottom, -1); // timecode track > > > + mxf_write_uuid(pb, Track, mxf->track_uuid_offset); // > > > timecode track > > > for (i = 0; i < s->nb_streams; i++) > > > - mxf_write_uuid(pb, package->type == MaterialPackage ? > > > Track : > > > Track + TypeBottom, i); > > > + mxf_write_uuid(pb, Track, mxf->track_uuid_offset + i + > > > 1); > > > > > > > Do these refer to tracks that are about to be written? Seems so as > > best I > > can tell, so I guess it works. I'd be happier if the referencing > > was done > > more explicitly rather than implicitly > > > yes they refer to the tracks about to be written. Those uuids need to > match > the uuid instance tag (0x3C0A) on a track written in mxf_write_track. > then > the uuid ref on the track needs to match the one on the sequence, and > then > the one the sequence needs to match the one on the component. > > would you rather the instance id be a argument to each of the write > functions? for example: > mxf_write_package(AVFormatContext *s, MXFPackage *package, int > track_uuid_offset) > mxf_write_track(AVFormatContext *s, AVStream *st, MXFPackage > *package, int > instance_id) > would that be more explicit? I'm not quite sure tbh. It's been a few years since I worked with MXF, so it's harder to say. Maybe a comment would be enough /Tomas
On Thu, Nov 30, 2017 at 9:01 AM, Tomas Härdin <tjoppen@acc.umu.se> wrote: > On Wed, 2017-11-29 at 20:18 -0800, Mark Reid wrote: > > On Wed, Nov 29, 2017 at 1:36 AM, Tomas Härdin <tjoppen@acc.umu.se> > > wrote: > > > > > On 2017-11-29 05:11, Mark Reid wrote: > > > > > > > @@ -980,7 +980,7 @@ static void > > > > mxf_write_structural_component(AVFormatContext > > > > *s, AVStream *st, MXF > > > > // write uid > > > > mxf_write_local_tag(pb, 16, 0x3C0A); > > > > - mxf_write_uuid(pb, package->type == MaterialPackage ? > > > > SourceClip: > > > > SourceClip + TypeBottom, st->index); > > > > + mxf_write_uuid(pb, SourceClip, mxf->track_uuid_offset); > > > > PRINT_KEY(s, "structural component uid", pb->buf_ptr - > > > > 16); > > > > mxf_write_common_fields(s, st); > > > > @@ -1357,7 +1357,7 @@ static void > > > > mxf_write_package(AVFormatContext *s, > > > > MXFPackage *package) > > > > // write package umid > > > > mxf_write_local_tag(pb, 32, 0x4401); > > > > - mxf_write_umid(s, package->type == SourcePackage); > > > > + mxf_write_umid(s, package->instance); > > > > PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16); > > > > // package name > > > > @@ -1375,10 +1375,9 @@ static void > > > > mxf_write_package(AVFormatContext *s, > > > > MXFPackage *package) > > > > // write track refs > > > > mxf_write_local_tag(pb, track_count*16 + 8, 0x4403); > > > > mxf_write_refs_count(pb, track_count); > > > > - mxf_write_uuid(pb, package->type == MaterialPackage ? Track > > > > : > > > > - Track + TypeBottom, -1); // timecode track > > > > + mxf_write_uuid(pb, Track, mxf->track_uuid_offset); // > > > > timecode track > > > > for (i = 0; i < s->nb_streams; i++) > > > > - mxf_write_uuid(pb, package->type == MaterialPackage ? > > > > Track : > > > > Track + TypeBottom, i); > > > > + mxf_write_uuid(pb, Track, mxf->track_uuid_offset + i + > > > > 1); > > > > > > > > > > Do these refer to tracks that are about to be written? Seems so as > > > best I > > > can tell, so I guess it works. I'd be happier if the referencing > > > was done > > > more explicitly rather than implicitly > > > > > > yes they refer to the tracks about to be written. Those uuids need to > > match > > the uuid instance tag (0x3C0A) on a track written in mxf_write_track. > > then > > the uuid ref on the track needs to match the one on the sequence, and > > then > > the one the sequence needs to match the one on the component. > > > > would you rather the instance id be a argument to each of the write > > functions? for example: > > mxf_write_package(AVFormatContext *s, MXFPackage *package, int > > track_uuid_offset) > > mxf_write_track(AVFormatContext *s, AVStream *st, MXFPackage > > *package, int > > instance_id) > > would that be more explicit? > > I'm not quite sure tbh. It's been a few years since I worked with MXF, > so it's harder to say. Maybe a comment would be enough > > okay I'll submit a new version with some more comments > /Tomas > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > >
diff --git a/libavformat/mxf.h b/libavformat/mxf.h index f3db1f939b..2d5b44943b 100644 --- a/libavformat/mxf.h +++ b/libavformat/mxf.h @@ -45,7 +45,6 @@ enum MXFMetadataSetType { SubDescriptor, IndexTableSegment, EssenceContainerData, - TypeBottom,// add metadata type before this EssenceGroup, TaggedValue, }; diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c index ed6ecbf541..baaeb8c617 100644 --- a/libavformat/mxfenc.c +++ b/libavformat/mxfenc.c @@ -386,6 +386,7 @@ typedef struct MXFContext { uint32_t tagged_value_count; AVRational audio_edit_rate; int store_user_comments; + int track_uuid_offset; } MXFContext; static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd }; @@ -853,7 +854,7 @@ static void mxf_write_track(AVFormatContext *s, AVStream *st, MXFPackage *packag // write track uid mxf_write_local_tag(pb, 16, 0x3C0A); - mxf_write_uuid(pb, package->type == MaterialPackage ? Track : Track + TypeBottom, st->index); + mxf_write_uuid(pb, Track, mxf->track_uuid_offset); PRINT_KEY(s, "track uid", pb->buf_ptr - 16); // write track id @@ -884,7 +885,7 @@ static void mxf_write_track(AVFormatContext *s, AVStream *st, MXFPackage *packag // write sequence refs mxf_write_local_tag(pb, 16, 0x4803); - mxf_write_uuid(pb, package->type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index); + mxf_write_uuid(pb, Sequence, mxf->track_uuid_offset); } static const uint8_t smpte_12m_timecode_track_data_ul[] = { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x01,0x03,0x02,0x01,0x01,0x00,0x00,0x00 }; @@ -924,7 +925,7 @@ static void mxf_write_sequence(AVFormatContext *s, AVStream *st, MXFPackage *pac klv_encode_ber_length(pb, 80); mxf_write_local_tag(pb, 16, 0x3C0A); - mxf_write_uuid(pb, package->type == MaterialPackage ? Sequence: Sequence + TypeBottom, st->index); + mxf_write_uuid(pb, Sequence, mxf->track_uuid_offset); PRINT_KEY(s, "sequence uid", pb->buf_ptr - 16); mxf_write_common_fields(s, st); @@ -936,9 +937,8 @@ static void mxf_write_sequence(AVFormatContext *s, AVStream *st, MXFPackage *pac component = TimecodeComponent; else component = SourceClip; - if (package->type == SourcePackage) - component += TypeBottom; - mxf_write_uuid(pb, component, st->index); + + mxf_write_uuid(pb, component, mxf->track_uuid_offset); } static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, MXFPackage *package) @@ -951,8 +951,7 @@ static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, MXFPa // UID mxf_write_local_tag(pb, 16, 0x3C0A); - mxf_write_uuid(pb, package->type == MaterialPackage ? TimecodeComponent : - TimecodeComponent + TypeBottom, st->index); + mxf_write_uuid(pb, TimecodeComponent, mxf->track_uuid_offset); mxf_write_common_fields(s, st); @@ -971,6 +970,7 @@ static void mxf_write_timecode_component(AVFormatContext *s, AVStream *st, MXFPa static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, MXFPackage *package) { + MXFContext *mxf = s->priv_data; AVIOContext *pb = s->pb; int i; @@ -980,7 +980,7 @@ static void mxf_write_structural_component(AVFormatContext *s, AVStream *st, MXF // write uid mxf_write_local_tag(pb, 16, 0x3C0A); - mxf_write_uuid(pb, package->type == MaterialPackage ? SourceClip: SourceClip + TypeBottom, st->index); + mxf_write_uuid(pb, SourceClip, mxf->track_uuid_offset); PRINT_KEY(s, "structural component uid", pb->buf_ptr - 16); mxf_write_common_fields(s, st); @@ -1357,7 +1357,7 @@ static void mxf_write_package(AVFormatContext *s, MXFPackage *package) // write package umid mxf_write_local_tag(pb, 32, 0x4401); - mxf_write_umid(s, package->type == SourcePackage); + mxf_write_umid(s, package->instance); PRINT_KEY(s, "package umid second part", pb->buf_ptr - 16); // package name @@ -1375,10 +1375,9 @@ static void mxf_write_package(AVFormatContext *s, MXFPackage *package) // write track refs mxf_write_local_tag(pb, track_count*16 + 8, 0x4403); mxf_write_refs_count(pb, track_count); - mxf_write_uuid(pb, package->type == MaterialPackage ? Track : - Track + TypeBottom, -1); // timecode track + mxf_write_uuid(pb, Track, mxf->track_uuid_offset); // timecode track for (i = 0; i < s->nb_streams; i++) - mxf_write_uuid(pb, package->type == MaterialPackage ? Track : Track + TypeBottom, i); + mxf_write_uuid(pb, Track, mxf->track_uuid_offset + i + 1); // write user comment refs if (mxf->store_user_comments) { @@ -1402,12 +1401,14 @@ static void mxf_write_package(AVFormatContext *s, MXFPackage *package) mxf_write_track(s, mxf->timecode_track, package); mxf_write_sequence(s, mxf->timecode_track, package); mxf_write_timecode_component(s, mxf->timecode_track, package); + mxf->track_uuid_offset++; for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; mxf_write_track(s, st, package); mxf_write_sequence(s, st, package); mxf_write_structural_component(s, st, package); + mxf->track_uuid_offset++; if (package->type == SourcePackage) { MXFStreamContext *sc = st->priv_data; @@ -1440,6 +1441,7 @@ static int mxf_write_essence_container_data(AVFormatContext *s) static int mxf_write_header_metadata_sets(AVFormatContext *s) { + MXFContext *mxf = s->priv_data; AVDictionaryEntry *entry = NULL; AVStream *st = NULL; int i; @@ -1448,6 +1450,7 @@ static int mxf_write_header_metadata_sets(AVFormatContext *s) int package_count = 2; packages[0].type = MaterialPackage; packages[1].type = SourcePackage; + packages[1].instance = 1; if (entry = av_dict_get(s->metadata, "material_package_name", NULL, 0)) packages[0].name = entry->value; @@ -1468,6 +1471,7 @@ static int mxf_write_header_metadata_sets(AVFormatContext *s) mxf_write_preface(s); mxf_write_identification(s); mxf_write_content_storage(s, packages, package_count); + mxf->track_uuid_offset = 0; for (i = 0; i < package_count; i++) mxf_write_package(s, &packages[i]); mxf_write_essence_container_data(s); diff --git a/tests/ref/fate/copy-trac4914 b/tests/ref/fate/copy-trac4914 index e0864a0035..a8f287fafa 100644 --- a/tests/ref/fate/copy-trac4914 +++ b/tests/ref/fate/copy-trac4914 @@ -1,4 +1,4 @@ -d51f6bcc96885a2ce8517ae8c774f610 *tests/data/fate/copy-trac4914.mxf +05fdc4a6e28abb2c26e96224682d2684 *tests/data/fate/copy-trac4914.mxf 560697 tests/data/fate/copy-trac4914.mxf #tb 0: 1001/30000 #media_type 0: video diff --git a/tests/ref/fate/time_base b/tests/ref/fate/time_base index 7923556b35..4dd14084d3 100644 --- a/tests/ref/fate/time_base +++ b/tests/ref/fate/time_base @@ -1 +1 @@ -d26a35b141551b36c5b8bd716451cfcb +f97551f884df5ab709c5869c66c7b9bc diff --git a/tests/ref/lavf/mxf b/tests/ref/lavf/mxf index b9c37334a9..7318447ecb 100644 --- a/tests/ref/lavf/mxf +++ b/tests/ref/lavf/mxf @@ -1,9 +1,9 @@ -1c06a9d69b6e309579784db5ecb0b69f *./tests/data/lavf/lavf.mxf +d4140129463dec64bdb4a7d7ad1b0c82 *./tests/data/lavf/lavf.mxf 525369 ./tests/data/lavf/lavf.mxf ./tests/data/lavf/lavf.mxf CRC=0x8dddfaab -50b4f9ca0493e6d83f4c52dc3aa2b7a5 *./tests/data/lavf/lavf.mxf +a27bb8cd5e185ea13b0a8daa4eb221cd *./tests/data/lavf/lavf.mxf 560697 ./tests/data/lavf/lavf.mxf ./tests/data/lavf/lavf.mxf CRC=0xf21b1b48 -4b71b154ae37364c8028cb50850a54c5 *./tests/data/lavf/lavf.mxf +395bf0047c97ceca96935357166b94c7 *./tests/data/lavf/lavf.mxf 525369 ./tests/data/lavf/lavf.mxf ./tests/data/lavf/lavf.mxf CRC=0x8dddfaab diff --git a/tests/ref/lavf/mxf_d10 b/tests/ref/lavf/mxf_d10 index 134db876d5..2384d427b0 100644 --- a/tests/ref/lavf/mxf_d10 +++ b/tests/ref/lavf/mxf_d10 @@ -1,3 +1,3 @@ -73c0cb416548c33d0651c59519a8f7e2 *./tests/data/lavf/lavf.mxf_d10 +f4694941b0cd5b5e3c91064d84dbd345 *./tests/data/lavf/lavf.mxf_d10 5330989 ./tests/data/lavf/lavf.mxf_d10 ./tests/data/lavf/lavf.mxf_d10 CRC=0x6c74d488 diff --git a/tests/ref/lavf/mxf_dv25 b/tests/ref/lavf/mxf_dv25 index 85094828d1..e836b14240 100644 --- a/tests/ref/lavf/mxf_dv25 +++ b/tests/ref/lavf/mxf_dv25 @@ -1,3 +1,3 @@ -1871bd11947924116776201f24fd0adf *./tests/data/lavf/lavf.mxf_dv25 +1ca8143bf6cf322fd39f6e856959d502 *./tests/data/lavf/lavf.mxf_dv25 3833389 ./tests/data/lavf/lavf.mxf_dv25 ./tests/data/lavf/lavf.mxf_dv25 CRC=0xbdaf7f52 diff --git a/tests/ref/lavf/mxf_dvcpro50 b/tests/ref/lavf/mxf_dvcpro50 index 1d0cf79996..bb3d6b928a 100644 --- a/tests/ref/lavf/mxf_dvcpro50 +++ b/tests/ref/lavf/mxf_dvcpro50 @@ -1,3 +1,3 @@ -6c9cb62911ac16c3b55f0ad0b052c05b *./tests/data/lavf/lavf.mxf_dvcpro50 +987fd4b2abb36433fba0e35f4092efc6 *./tests/data/lavf/lavf.mxf_dvcpro50 7430189 ./tests/data/lavf/lavf.mxf_dvcpro50 ./tests/data/lavf/lavf.mxf_dvcpro50 CRC=0xe3bbe4b4 diff --git a/tests/ref/lavf/mxf_opatom b/tests/ref/lavf/mxf_opatom index ea1190c06a..1cc612e627 100644 --- a/tests/ref/lavf/mxf_opatom +++ b/tests/ref/lavf/mxf_opatom @@ -1,3 +1,3 @@ -962c2cd582340f8961a8283636093abf *./tests/data/lavf/lavf.mxf_opatom +b8fe60f7457b83709f33357d04c8db0c *./tests/data/lavf/lavf.mxf_opatom 4717113 ./tests/data/lavf/lavf.mxf_opatom ./tests/data/lavf/lavf.mxf_opatom CRC=0xf55aa22a diff --git a/tests/ref/lavf/mxf_opatom_audio b/tests/ref/lavf/mxf_opatom_audio index 953df9094f..deed55e526 100644 --- a/tests/ref/lavf/mxf_opatom_audio +++ b/tests/ref/lavf/mxf_opatom_audio @@ -1,3 +1,3 @@ -d4ad5a0faf410a9d9e99b3328143e89d *./tests/data/lavf/lavf.mxf_opatom_audio +e7da52bd591e6eddb4e1af381a4e5bd4 *./tests/data/lavf/lavf.mxf_opatom_audio 101945 ./tests/data/lavf/lavf.mxf_opatom_audio ./tests/data/lavf/lavf.mxf_opatom_audio CRC=0xd155c6ff