Commit graph

6 commits

Author SHA1 Message Date
Seungha Yang
32b13a883a vp9parse: Set subsampling to src caps even if GBR stream
Some muxer elements will need the subsampling information

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3297>
2022-10-31 11:29:38 +00:00
Seungha Yang
47f1dc837f vp9parse: Delaying src caps until frame is parsed if profile > 0
subsampling and/or bitdepth information will be required for
negotiation

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3297>
2022-10-31 11:29:38 +00:00
He Junyan
11436be268 vp9parse: The show_existing_frame buffer should not be decode only.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3155>
2022-10-13 06:41:06 +00:00
He Junyan
eac9c33cc1 vp9parse: Correct the pts for frames inside a super frame.
When the alignment is "FRAME" and the parse is likely connecting to
a decoder, the current PTS setting for VP9 frames inside a super
frame is not very correct.

For example, the super frame 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 super frame, let the non-displayed
frames have no PTS while set the correct PTS to the displayed one.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3155>
2022-10-13 06:41:06 +00:00
Nicolas Dufresne
57c2adeeb2 vp9parse: Fix auto-plugging of HW frame decoder
Decoders that required frame aligmment and didn't have an associated
alpha decoder were skipped. This is because the parser was constructing
caps based on the software alpha decoder, which specify super-frame
alignment.

Iterate over the caps to filter the one that have a matching codec-alpha, with
the semantic the no codec-alpha field means codec-alpha=false. Then if
everything was removed, callback to the original, so that the first non-alpha
decoder will be picked.

Fixes #820

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1855>
2022-03-04 21:24:17 +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
Renamed from gst/videoparsers/gstvp9parse.c (Browse further)