INITIALIZATION_RANGE 3398 libavformat/matroskadec.c     av_dict_set_int(&s->streams[0]->metadata, INITIALIZATION_RANGE, avio_tell(s->pb) - 5, 0);
INITIALIZATION_RANGE  143 libavformat/webmdashenc.c     AVDictionaryEntry *irange = av_dict_get(stream->metadata, INITIALIZATION_RANGE, NULL, 0);