MrBesen/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

avformat/mxfenc: use track count to generate component instance uuid

Browse Source 
Reviewed-by: Tomas Härdin <tjoppen@acc.umu.se>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Mark Reid 2017-12-04 20:46:21 -08:00 committed by Michael Niedermayer
parent a428f2fcd9
commit ad2641c36b
10 changed files with 37 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
libavformat/mxf.h
View File

@ -45,7 +45,6 @@ enum MXFMetadataSetType {
SubDescriptor,
IndexTableSegment,
EssenceContainerData,
TypeBottom,// add metadata type before this
EssenceGroup,
TaggedValue,
};

42
libavformat/mxfenc.c
View File

@ -386,6 +386,7 @@ typedef struct MXFContext {
uint32_t tagged_value_count;
AVRational audio_edit_rate;
int store_user_comments;
int track_instance_count; // used to generate MXFTrack uuids
} 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_instance_count);
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_instance_count);
}
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_instance_count);
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_instance_count);
}
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_instance_count);
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_instance_count);
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
for (i = 0; i < s->nb_streams; i++)
mxf_write_uuid(pb, package->type == MaterialPackage ? Track : Track + TypeBottom, i);
// these are the uuids of the tracks the will be written in mxf_write_track
for (i = 0; i < track_count; i++)
mxf_write_uuid(pb, Track, mxf->track_instance_count + i);
// write user comment refs
if (mxf->store_user_comments) {
@ -1398,16 +1397,26 @@ static void mxf_write_package(AVFormatContext *s, MXFPackage *package)
mxf_write_uuid(pb, SubDescriptor, 0);
}
/*
* for every 1 track in a package there is 1 sequence and 1 component.
* all 3 of these elements share the same instance number for generating
* there instance uuids. mxf->track_instance_count stores this value.
* mxf->track_instance_count is incremented after a group of all 3 of
* these elements are written.
*/
// write timecode track
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_instance_count++;
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_instance_count++;
if (package->type == SourcePackage) {
MXFStreamContext *sc = st->priv_data;
@ -1440,14 +1449,16 @@ 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;
MXFPackage packages[2] = {};
MXFPackage packages[2] = {{0}};
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 +1479,7 @@ 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_instance_count = 0;
for (i = 0; i < package_count; i++)
mxf_write_package(s, &packages[i]);
mxf_write_essence_container_data(s);

2
tests/ref/fate/copy-trac4914
View File

@ -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

2
tests/ref/fate/time_base
View File

@ -1 +1 @@
d26a35b141551b36c5b8bd716451cfcb
f97551f884df5ab709c5869c66c7b9bc

6
tests/ref/lavf/mxf
View File

@ -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

2
tests/ref/lavf/mxf_d10
View File

@ -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

2
tests/ref/lavf/mxf_dv25
View File

@ -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

2
tests/ref/lavf/mxf_dvcpro50
View File

@ -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

2
tests/ref/lavf/mxf_opatom
View File

@ -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

2
tests/ref/lavf/mxf_opatom_audio
View File

@ -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