On Tue, Jan 14, 2025 at 4:58 AM Rubén Gonzalez <rgonza...@fluendo.com> wrote:
> IIRC This is needed for raw bitstreams and muxed videos. I did a fast test > [1] and only patched version works. > > [2] https://www.elecard.com/storage/video/NovosobornayaSquare_640x360.mp4 Could you clarify the real use case for the key flag on a decoded frame? To my understanding, only demuxers require this flag to seek within a bitstream. What is the purpose of having a key frame indicator for a decoded frame? Obtaining key frame information from a decoder is costly since it requires a full decoding. Perhaps this information could be retrieved solely from the parser or the CBS > > > > > On Sun, Jan 12, 2025 at 4:38 AM Nuo Mi <nuomi2...@gmail.com> wrote: > > > 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. > > > > > > > > _______________________________________________ > > > ffmpeg-devel mailing list > > > ffmpeg-devel@ffmpeg.org > > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > > > > > To unsubscribe, visit link above, or email > > > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". > > > > > _______________________________________________ > > ffmpeg-devel mailing list > > ffmpeg-devel@ffmpeg.org > > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > > > To unsubscribe, visit link above, or email > > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". > > > > -- > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
