I want to add to the closed caption libavcodec/ccaption_dec.c decoder to be able to handle both 608 "over CEA 708" (which it already does) and also "raw EIA 608 byte pairs" which it doesn't.
My idea was to introduce a new codec id for the raw 608 pairs. AV_CODEC_ID_EIA_RAW_608 or the like. The decoding shares a lot of functionality. Currently the decoder code is set up like this: AVCodec ff_ccaption_decoder = { .name = "cc_dec", .long_name = NULL_IF_CONFIG_SMALL("Closed Caption (EIA-608 / CEA-708)"), .type = AVMEDIA_TYPE_SUBTITLE, .id = AV_CODEC_ID_EIA_608, ... I was hoping to "add" another codec like AV_CODEC_ID_EIA_RAW_608 and having this decoder be able to decode both types. I was anticipating being able to define some kind of "query" method so it would check if the requested codec id was "either AV_CODEC_ID_EIA_608 or AV_CODEC_ID_EIA_RAW_608" and accept decoding either codec. Is there a way for a codec to decode two id's like this? If not any recommendations on how to best handle this? Thanks. -Roger- _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".