4 commits

Author	SHA1	Message	Date
Nicolas Dufresne	7e875ddb2c	v4l2codecs: mpeg2: Fix selected sizeimage ... Due to a copy paste bug, the bitdepth was never set and that was leading to requesting sizeimage of 0. Previously that worked since the driver would in that case pick a size for us. But now the we bumped the minimum to 4KB, the driver happily allocate 4KB of bitstream which lead to decoding error. As MPEG2 have a fixed bitdeph of 8, use a define instead of the run-time variable. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1415>	2021-12-03 07:55:30 -05:00
Nicolas Dufresne	a6eb1e7782	v4l2codecs: Fix renegotiation ... If we hold the last reference to the allocator, leaving the device streaming will cause an EBUSY error when trying to free the allocate buffers. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1404>	2021-12-02 15:45:26 -05:00
Daniel Almeida	f9958eda8e	v4l2codecs: gstv4l2codecsmpeg2dec: implement a render delay ... The v4l2 backend support delayed output for performance reasons. It is then possible to use render delays to queue multiple requests simultaneously, thus increasing performance. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1013>	2021-11-02 16:16:29 +00:00
Daniel Almeida	477b824f8e	v4l2codecs: Implement a MPEG2 V4L2 decoder element ... Implement a MPEG2 V4L2 decoder element based on the previous h264 implementation. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1013>	2021-11-02 16:16:29 +00:00