- /* set group start */
- if (g->num != 0 && vsst->header_len != 0 && fc->first_stream_chunk == 0)
- /* chunk #0 is the audio file header */
- tv_scale(g->first_chunk - 1, chunk_tv, &tmp);
- else
- tv_scale(g->first_chunk - fc->first_stream_chunk,
- chunk_tv, &tmp);
- tv_add(&fc->stream_start, &tmp, &g->start);