On 7/13/19, Francesco Pretto <cez...@gmail.com> wrote: > Hello, > > I'm investigating on possibility to encode per frame metadata using > ffmpeg API. Naive attempts to set a dictionary on "AVFrame.metadata" > with some key values failed without any warning or error during > encoding, but no values are retrieved on the field during decoding. > I'm using ffmpeg 4.1.3 with modern send/receive API usage. Other users > on SO seemed to try similar approach without success[1][2]. I've no > specific requirements on container format: any format supporting this > feature plus streaming would be good. I first tried with flv, mp4 > formats and ended up testing nut format noticing some trace of > specific support for the feature[3]. Is there any obvious mistake I'm > possibly doing? Is the feature actually supported? >
What gives you reason this is supported? None of containers mentioned can support it even theoretically. > Regards, > Francesco > > [1] > https://stackoverflow.com/questions/51415447/ffmpeg-sidedata-or-metadata-per-frame > [2] > https://stackoverflow.com/questions/39330048/ffmpeg-per-frame-metadata-with-rtsp-and-h264 > [3] https://ffmpeg.org/pipermail/ffmpeg-devel/2013-March/141270.html > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
