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| author | Tomas Härdin <tomas.hardin@codemill.se> | 2012-10-25 10:23:59 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-10-25 13:56:24 +0200 |
| commit | 5c108092a34ea01dff4ff7f8764a904f238ef1f6 (patch) | |
| tree | 2596fa479b072773e2b559067e6e9eed86a835aa /libavformat/mxfenc.c | |
| parent | da4e4d65f456f170e75865807d21a8b5ed5ea4d7 (diff) | |
mxfenc: Write MultipleDescriptor ref in Preface
Reviewed-by: Matthieu Bouron <matthieu.bouron@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/mxfenc.c')
| -rw-r--r-- | libavformat/mxfenc.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c index 7acc77940c..c583197a45 100644 --- a/libavformat/mxfenc.c +++ b/libavformat/mxfenc.c @@ -529,18 +529,25 @@ static const MXFCodecUL *mxf_get_data_definition_ul(int type) return uls; } +//one EC -> one descriptor. N ECs -> MultipleDescriptor + N descriptors +#define DESCRIPTOR_COUNT(essence_container_count) \ + (essence_container_count > 1 ? essence_container_count + 1 : essence_container_count) + static void mxf_write_essence_container_refs(AVFormatContext *s) { MXFContext *c = s->priv_data; AVIOContext *pb = s->pb; int i; - mxf_write_refs_count(pb, c->essence_container_count); + mxf_write_refs_count(pb, DESCRIPTOR_COUNT(c->essence_container_count)); av_log(s,AV_LOG_DEBUG, "essence container count:%d\n", c->essence_container_count); for (i = 0; i < c->essence_container_count; i++) { MXFStreamContext *sc = s->streams[i]->priv_data; avio_write(pb, mxf_essence_container_uls[sc->index].container_ul, 16); } + + if (c->essence_container_count > 1) + avio_write(pb, multiple_desc_ul, 16); } static void mxf_write_preface(AVFormatContext *s) @@ -550,7 +557,7 @@ static void mxf_write_preface(AVFormatContext *s) mxf_write_metadata_key(pb, 0x012f00); PRINT_KEY(s, "preface key", pb->buf_ptr - 16); - klv_encode_ber_length(pb, 130 + 16LL * mxf->essence_container_count); + klv_encode_ber_length(pb, 130 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count)); // write preface set uid mxf_write_local_tag(pb, 16, 0x3C0A); @@ -579,7 +586,7 @@ static void mxf_write_preface(AVFormatContext *s) avio_write(pb, op1a_ul, 16); // write essence_container_refs - mxf_write_local_tag(pb, 8 + 16 * mxf->essence_container_count, 0x3B0A); + mxf_write_local_tag(pb, 8 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count), 0x3B0A); mxf_write_essence_container_refs(s); // write dm_scheme_refs @@ -1326,7 +1333,7 @@ static void mxf_write_partition(AVFormatContext *s, int bodysid, // write klv avio_write(pb, key, 16); - klv_encode_ber_length(pb, 88 + 16LL * mxf->essence_container_count); + klv_encode_ber_length(pb, 88 + 16LL * DESCRIPTOR_COUNT(mxf->essence_container_count)); // write partition value avio_wb16(pb, 1); // majorVersion |