[FFmpeg-devel] [PATCH] vp9: set color range to MPEG for intraonly profile 0

[James Zern]

On Fri, Aug 18, 2017 at 8:31 PM, James Zern <jzern at google.com> wrote:
> this is undocumented in the vp9 bitstream and decoding specification
> doc, but matches libvpx
>

this came up in comparing decode results of ffvp9 and libvpx with
source from a hardware encoder.

> Signed-off-by: James Zern <jzern at google.com>
> ---
>  libavcodec/vp9.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/libavcodec/vp9.c b/libavcodec/vp9.c
> index 7d8aced8c8..94430db9a3 100644
> --- a/libavcodec/vp9.c
> +++ b/libavcodec/vp9.c
> @@ -459,7 +459,7 @@ static int decode_frame_header(AVCodecContext *avctx,
>                  s->bytesperpixel = 1;
>                  s->pix_fmt = AV_PIX_FMT_YUV420P;
>                  avctx->colorspace = AVCOL_SPC_BT470BG;
> -                avctx->color_range = AVCOL_RANGE_JPEG;
> +                avctx->color_range = AVCOL_RANGE_MPEG;
>              }
>              s->s.h.refreshrefmask = get_bits(&s->gb, 8);
>              w = get_bits(&s->gb, 16) + 1;
> --
> 2.14.1.480.gb18f417b89-goog
>