[FFmpeg-devel] [PATCH v2 04/11] avcodec/dovi_rpu: clarify semantics of guess_profile()

Andreas Rheinhardt andreas.rheinhardt at outlook.com
Tue Apr 9 18:37:32 EEST 2024


Niklas Haas:
> From: Niklas Haas <git at haasn.dev>
> 
> This is based on HEVC only, H.264/AV1 use their own (hopefully correctly
> signalled) profiles.
> ---
>  libavcodec/dovi_rpu.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/libavcodec/dovi_rpu.c b/libavcodec/dovi_rpu.c
> index 267e52ceb66..4da711d763e 100644
> --- a/libavcodec/dovi_rpu.c
> +++ b/libavcodec/dovi_rpu.c
> @@ -121,7 +121,8 @@ int ff_dovi_attach_side_data(DOVIContext *s, AVFrame *frame)
>      return 0;
>  }
>  
> -static int guess_profile(const AVDOVIRpuDataHeader *hdr)
> +/* Note: Only works for HEVC */
> +static int guess_hevc_profile(const AVDOVIRpuDataHeader *hdr)
>  {
>      switch (hdr->vdr_rpu_profile) {
>      case 0:
> @@ -510,7 +511,7 @@ int ff_dovi_rpu_parse(DOVIContext *s, const uint8_t *rpu, size_t rpu_size,
>      use_prev_vdr_rpu = get_bits1(gb);
>      use_nlq = (hdr->rpu_format & 0x700) == 0 && !hdr->disable_residual_flag;
>  
> -    profile = s->cfg.dv_profile ? s->cfg.dv_profile : guess_profile(hdr);
> +    profile = s->cfg.dv_profile ? s->cfg.dv_profile : guess_hevc_profile(hdr);
>      if (profile == 5 && use_nlq) {
>          av_log(s->logctx, AV_LOG_ERROR, "Profile 5 RPUs should not use NLQ\n");
>          goto fail;

Is guess_hevc_profile only called for HEVC?

- Andreas



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