On Sun, Jan 12, 2025 at 6:24 AM James Almer <jamr...@gmail.com> wrote:

> On 1/11/2025 3:40 AM, Nuo Mi wrote:
> > Tested with:
> > ```
> > wget
> https://www.itu.int/wftp3/av-arch/jvet-site/bitstream_exchange/VVC/draft_conformance/draft6/CodingToolsSets_E_Tencent_1.zip
> > unzip CodingToolsSets_E_Tencent_1.zip CodingToolsSets_E_Tencent_1.bit
> > ffprobe -hide_banner CodingToolsSets_E_Tencent_1.bit -select_streams v
> -show_frames -show_entries frame=pict_type,key_frame -of csv
> > ```
> >
> > From
> > ```
> > frame,0,?
> > frame,0,?
> > frame,0,?
> > frame,0,?
> > frame,0,?
> > frame,0,?
> > frame,0,?
> > frame,0,?
> > frame,0,?
> > ```
> >
> > To:
> > ```
> > frame,1,I
> > frame,0,B
> > frame,0,B
> > frame,0,B
> > frame,0,B
> > frame,0,B
> > frame,0,B
> > frame,0,P
> > frame,0,B
> > ```
> >
> > fixes https://trac.ffmpeg.org/ticket/11406
>
> The subject should be something like "lavc/vvc/refs: export keyframe and
> picture type in output frames". No reason to mention ffprobe, as this is
> not about what library users will do with the introduced changes, but
> what the changes are about in lavc.
>
Thank you for the suggestion, fixed by v2

>
> Also, I'm surprised the decoder hasn't signaled keyframes all this time.
>
If we have a container, it will signal key frame information. I believe
this is only relevant for raw bitstreams.
Please correct me if I'm wrong, @Ruben Gonzalez.

>
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