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)
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);
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
// 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