AV_METADATA_MATCH_CASE 38 libavformat/metadata.c if(flags & AV_METADATA_MATCH_CASE) for(j=0; s[j] == key[j] && key[j]; j++); AV_METADATA_MATCH_CASE 52 libavformat/metadata.c AVMetadataTag *tag= av_metadata_get(m, key, NULL, AV_METADATA_MATCH_CASE);