Commit graph

58 commits

Author SHA1 Message Date
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
Daniel Almeida
4fe6bc1afe v4l2codecs: mpeg2: update to the new uAPI
The mpeg2 stateless api has undergone changes as it is being
destage. Update the v4l2-controls header to match.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1013>
2021-11-02 16:16:29 +00:00
James Cowgill
8b932c105f v4l2codecs: Handle allocator creation failure
If `VIDIOC_REQBUFS` doesn't return enough buffers the allocator creation
function can fail and return `NULL`. Handle this by generating an error
and returning instead of segfaulting.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1220>
2021-11-02 15:25:48 +00:00
James Cowgill
3846b0563a v4l2codecs: Fix segfault when destroying non-detached allocator
The GstV4l2CodecAllocator dispose function clears `self->decoder` but
the finalize function then tries to use it if the allocator has no been
detached yet.

Fix by detaching in the dispose function before we clear
`self->decoder`.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1220>
2021-11-02 15:25:48 +00:00
Benjamin Gaignard
7e9e17ebbe v4l2codecs: Align v4l2-controls header with kernel 5.15-rc3
Update v4l2-controls to be aligned with kernel 5.15-rc3.
Fix VP8 decoder to use the correct field name.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1081>
2021-10-10 15:50:57 +00:00
Seungha Yang
e322745763 codecs: h264decoder: Use GstFlowReturn everywhere
boolean return value is not sufficient for representing the reason
of error in most cases. For instance, any errors around new_sequence()
would mean negotiation error, not just *ERROR*.
And some subclasses will allocate buffer/memory/surface on new_picture()
but it could be failed because of expected error, likely flushing

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1019>
2021-10-04 20:56:46 +00:00
Thibault Saunier
019971a3c7 Move files from gst-plugins-bad into the "subprojects/gst-plugins-bad/" subdir 2021-09-24 16:14:36 -03:00