[FFmpeg-devel] [PATCH] avfilter: add ocr filter

Paul B Mahol onemda at gmail.com
Wed Sep 9 17:59:43 CEST 2015


On 9/9/15, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> Paul B Mahol <onemda <at> gmail.com> writes:
>
>> +    static const enum AVPixelFormat pix_fmts[] = {
>> +        AV_PIX_FMT_GRAY8, AV_PIX_FMT_YUV420P,
>> +        AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV444P,
>
> Looking at the function call below, all non-packed
> formats (including GBR) are "supported", no?

Everything that have Y plane. I have not tested >8
bitdepth case.

>
>> +    av_log(ctx, AV_LOG_INFO, "%s\n", result);
>
> Can't this output a subtitle stream as it is
> currently done for Closed Captions? Imo, this
> would be helpful even without any formatting
> whatsoever.

There are no subtitles in AVFrame nor in lavfi.

>
> I believe this is a brilliant addition
> to FFmpeg, thank you!
>
> Carl Eugen
>
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