[FFmpeg-devel] [PATCH] lavc/vvcdec: show frames info with ffprobe and other tools.

[James Almer]

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.

Also, I'm surprised the decoder hasn't signaled keyframes all this time.

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