[FFmpeg-devel] [PATCH 1/2] lavc: add CEA-708 codec id.

[Reimar Döffinger]

On 16 March 2014 19:56:41 CET, Nicolas George <george at nsup.org> wrote:
>Le primidi 21 ventôse, an CCXXII, Reimar Döffinger a écrit :
>> Not "or", "and". IIRC they _must_ contain a EIA-608 compatibility
>stream
>> which will be used for output e.g. to older devices. Newer/more
>advanced
>> ones will use the alternate data that can do more advanced effects
>etc.
>
>Thanks for the explanation. Do we have samples where the "alternate
>data" is
>present?
>
>> Also I don't think this is new, I believe wtv CC streams contain both
>> parts as well, the 2-byte packages are the 608 compatibility, the
>rest the
>> 708 content.
>
>Reading the code, I believe that the WTV demuxer tags that as
>AV_CODEC_ID_EIA_608. Does that mean I can use that codec id and not add
>a
>new one? Do we have a WTV sample for that?

It was kind of my idea that we would just have all under a single ID for the moment since filtering out the part you want isn't hard, but that was in large part due to laziness...
I believe most if not all wtv samples we have include combined 608 and 708 data, but I can't test right now (and don't even know they are on the sample server).