Re: [FFmpeg-devel] [PATCH 1/2] lavc/internal: add skip_samples2 field
Quoting Lynne (2023-10-19 14:49:46) > Oct 19, 2023, 10:39 by an...@khirnov.net: > > > Current interaction between AV_FRAME_DATA_SKIP_SAMPLES and > > AVCodecContext.skip_samples seems unncecessarily complicated to me and > > you're just making it worse. > > > > Is there any reason we can't drop AVCodecContext.skip_samples entirely > > and signal it purely through side data? Then decoders could fully > > control everything they wish by modifying side data on output frames. > > > > You mean let the decoder parse skip samples side data, > strip it from the packet, and attach a new side data to the frame? Not from the packet - that should be const for decoders. The generic code currently translates AV_PKT_DATA_SKIP_SAMPLES from the packet to the frame in ff_get_buffer(). The decoder can then override that in the frame. -- Anton Khirnov ___ 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".
Re: [FFmpeg-devel] [PATCH 1/2] lavc/internal: add skip_samples2 field
On 10/19/2023 5:39 AM, Anton Khirnov wrote: Current interaction between AV_FRAME_DATA_SKIP_SAMPLES and AVCodecContext.skip_samples seems unncecessarily complicated to me and you're just making it worse. Is there any reason we can't drop AVCodecContext.skip_samples entirely and signal it purely through side data? Then decoders could fully control everything they wish by modifying side data on output frames. Given that now coded_side_data is fully implemented for decoding and encoding, including getting elements from the container, it's probably a good idea to do that. ___ 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".
Re: [FFmpeg-devel] [PATCH 1/2] lavc/internal: add skip_samples2 field
Oct 19, 2023, 10:39 by an...@khirnov.net: > Current interaction between AV_FRAME_DATA_SKIP_SAMPLES and > AVCodecContext.skip_samples seems unncecessarily complicated to me and > you're just making it worse. > > Is there any reason we can't drop AVCodecContext.skip_samples entirely > and signal it purely through side data? Then decoders could fully > control everything they wish by modifying side data on output frames. > You mean let the decoder parse skip samples side data, strip it from the packet, and attach a new side data to the frame? ___ 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".
Re: [FFmpeg-devel] [PATCH 1/2] lavc/internal: add skip_samples2 field
Current interaction between AV_FRAME_DATA_SKIP_SAMPLES and AVCodecContext.skip_samples seems unncecessarily complicated to me and you're just making it worse. Is there any reason we can't drop AVCodecContext.skip_samples entirely and signal it purely through side data? Then decoders could fully control everything they wish by modifying side data on output frames. -- Anton Khirnov ___ 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".
