On 9/16/2020 9:14 PM, Pavel Koshevoy wrote:
> This is a partial revert of f2ad6238e4c0e99e2fc131ee14c586e87b045680
> It fixes per-frame color_trc signaling of arib-std-b67 frames.
>
> Reproducible with:
> ffprobe -show_frames lg_4k_hlg.ts | grep color_transfer=
> ---
> libavcodec/hevcdec.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c
> index c1de75abe1..e3d1e3f693 100644
> --- a/libavcodec/hevcdec.c
> +++ b/libavcodec/hevcdec.c
> @@ -2810,6 +2810,12 @@ static int set_side_data(HEVCContext *s)
> s->avctx->properties |= FF_CODEC_PROPERTY_CLOSED_CAPTIONS;
> }
>
> + if (s->sei.alternative_transfer.present &&
> +
> av_color_transfer_name(s->sei.alternative_transfer.preferred_transfer_characteristics)
> &&
> + s->sei.alternative_transfer.preferred_transfer_characteristics !=
> AVCOL_TRC_UNSPECIFIED) {
> + s->avctx->color_trc = out->color_trc =
> s->sei.alternative_transfer.preferred_transfer_characteristics;
> + }
> +
> for (int i = 0; i < s->sei.unregistered.nb_buf_ref; i++) {
> HEVCSEIUnregistered *unreg = &s->sei.unregistered;
I have an alternative approach. Will send it soon.
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