uint8_t *local_tags;
int local_tags_count;
uint64_t footer_partition;
- int system_item;
int64_t essence_offset;
int first_essence_kl_length;
int64_t first_essence_length;
return 0;
}
-static int mxf_parse_index(MXFContext *mxf, int i, AVStream *st)
+static int mxf_parse_index(MXFContext *mxf, int track_id, AVStream *st)
{
int64_t accumulated_offset = 0;
int j, k, ret, nb_sorted_segments;
MXFIndexTableSegment **sorted_segments;
+ int n_delta = track_id - 1; /* TrackID = 1-based stream index */
+
+ if (track_id < 1) {
+ av_log(mxf->fc, AV_LOG_ERROR, "TrackID not positive: %i\n", track_id);
+ return AVERROR_INVALIDDATA;
+ }
if ((ret = mxf_get_sorted_table_segments(mxf, &nb_sorted_segments, &sorted_segments)))
return ret;
for (j = 0; j < nb_sorted_segments; j++) {
- int n_delta = i;
int duration, sample_duration = 1, last_sample_size = 0;
int64_t segment_size;
MXFIndexTableSegment *tableseg = sorted_segments[j];
if (j > 0 && tableseg->body_sid != sorted_segments[j-1]->body_sid)
accumulated_offset = 0;
- /* HACK: How to correctly link between streams and slices? */
- if (i < mxf->system_item + st->index)
- n_delta++;
if (n_delta >= tableseg->nb_delta_entries && st->index != 0)
continue;
duration = tableseg->index_duration > 0 ? tableseg->index_duration :
pos += mxf->essence_offset;
- av_dlog(mxf->fc, "Stream %d IndexEntry %d n_Delta %d Offset %"PRIx64" Timestamp %"PRId64"\n",
- st->index, st->nb_index_entries, n_delta, pos, sample_duration * st->nb_index_entries);
+ av_dlog(mxf->fc, "Stream %d IndexEntry %d TrackID %d Offset %"PRIx64" Timestamp %"PRId64"\n",
+ st->index, st->nb_index_entries, track_id, pos, sample_duration * st->nb_index_entries);
if ((ret = av_add_index_entry(st, pos, sample_duration * st->nb_index_entries, size, 0, flags)) < 0)
return ret;
st->need_parsing = AVSTREAM_PARSE_FULL;
}
- if ((ret = mxf_parse_index(mxf, i, st)))
+ if ((ret = mxf_parse_index(mxf, material_track->track_id, st)))
return ret;
}
return 0;
compute_partition_essence_offset(s, mxf, &klv);
}
- if (IS_KLV_KEY(klv.key, mxf_system_item_key)) {
- mxf->system_item = 1;
- }
-
if (!mxf->essence_offset)
mxf->essence_offset = klv.offset;