[FFmpeg-devel] [PATCH]Make high bit-depth libvpx samples show the correct bit depth

[James Zern]

Hi,

On Tue, Sep 16, 2014 at 1:30 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
> Hi!
>
> Attached patch fixes ffmpeg -i output for high-bitrate vp9 files here.
>

Do you mean high bitdepth?

> Please comment, Carl Eugen
>
> diff --git a/libavcodec/libvpxdec.c b/libavcodec/libvpxdec.c
> index 8312460..6b6e899 100644
> --- a/libavcodec/libvpxdec.c
> +++ b/libavcodec/libvpxdec.c
> @@ -56,7 +56,9 @@ static av_cold int vpx_init(AVCodecContext *avctx,
>          return AVERROR(EINVAL);
>      }
>
> +#if !defined(VPX_IMG_FMT_HIGHBITDEPTH)
>      avctx->pix_fmt = AV_PIX_FMT_YUV420P;
> +#endif
>      return 0;
>  }

The fix is a bit odd. This can just go given set_pix_fmt is called
when decoding a frame. I think in its current state all this will
avoid is not forcing a decode call with older libraries.