mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-18 15:51:11 +00:00
242401915f
When the output alignment is smaller than the input alignment, for example, When the output alignment is "FRAME" and the parse is likely connecting to a decoder, the current PTS setting for AV1 frames inside a TU is not very correct. For example, a TU may begin with non-displayed frames and end with a displayed frame. The current way will assign the PTS to the first non-displayed frame, which is a decode-only frame and the PTS will be discarded in the video decoder. While the last displayed frame has invalid PTS, and so the video decoder needs to guess its PTS based on the frame rate and previous frame's PTS. This is not a decent and robust way. And more important, when the previous frames provide DTS, the video decoder will also guess the PTS based on the previous frames' DTS and trigger the warning like: gstvideodecoder.c:3147:gst_video_decoder_prepare_finish_frame: \ <vavp9dec0> decreasing timestame It sets the reordered_output and makes the decoder in free run mode. We should correct the PTS for a TU, let the non-displayed frames have no PTS while set the correct PTS to the displayed one. Also, when the AV1 stream has multi spatial layers, there are more than one displayed frames inside one TU with the same PTS. Note: If the input alignment is not TU aligned, we can not know the exact PTS of this TU, and so we just clear the PTS of the decode only frame and leave others unchanged. We also correct all the PTS if the output is OBU aligned. All their PTS and DTS are set to the input buffer's PTS. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3182> |
||
|---|---|---|
| .. | ||
| dirac_parse.c | ||
| dirac_parse.h | ||
| gstav1parse.c | ||
| gstav1parse.h | ||
| gstdiracparse.c | ||
| gstdiracparse.h | ||
| gsth263parse.c | ||
| gsth263parse.h | ||
| gsth264parse.c | ||
| gsth264parse.h | ||
| gsth265parse.c | ||
| gsth265parse.h | ||
| gstjpeg2000parse.c | ||
| gstjpeg2000parse.h | ||
| gstmpeg4videoparse.c | ||
| gstmpeg4videoparse.h | ||
| gstmpegvideoparse.c | ||
| gstmpegvideoparse.h | ||
| gstpngparse.c | ||
| gstpngparse.h | ||
| gstvc1parse.c | ||
| gstvc1parse.h | ||
| gstvideoparserselement.c | ||
| gstvideoparserselements.h | ||
| gstvideoparseutils.c | ||
| gstvideoparseutils.h | ||
| gstvp9parse.c | ||
| gstvp9parse.h | ||
| h263parse.c | ||
| h263parse.h | ||
| meson.build | ||
| plugin.c | ||