Commit graph

15 commits

Author SHA1 Message Date
Seungha Yang
a5ddf7af3b mpeg2decoder: Port to GstCodecPicture struct
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5285>
2023-09-08 11:51:23 +00:00
Seungha Yang
9a902afce4 codecs: Use release_frame() instead of drop_frame()
drop_frame() will post QoS message which is not intended here

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5024>
2023-07-13 13:48:46 +00:00
Seungha Yang
45766f2448 codecs: Propagate downstream flow ERROR
Don't translate downstream flow ERROR to OK

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5024>
2023-07-13 13:48:46 +00:00
Seungha Yang
77b9e1351a mpeg2decoder: Fix DPB size signalling
Take current frame into account for the DPB size signalling

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4845>
2023-06-14 15:16:04 +00:00
He Junyan
a965be8d96 mpeg2decoder: fail early if no input caps have been provided
The mpeg2decoder class does not implement the ->parse() virtual function,
and we always need to add the mpegvideoparse element before it. So we should
set_needs_format of the decoder to TRUE, then if no parse before it, it
can fail with a "not-negotiated" error early, rather than go on and
generate unexpected error.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4064>
2023-02-25 10:31:27 +08:00
Seungha Yang
2ede4011bf codecs: Keep track of non-decoding-essential input state change
In theory, input caps can be updated anytime at non-keyframe or
sequence boundary, such as HDR10 metadata, framerate, aspect-ratio
or so. Those information update might not trigger ::new_sequence()
or subclass may ignore the changes.

By this commit, input state change will be tracked by baseclass
and subclass will be able to know the non-decoding-essential
update by checking the codec specific picture struct
on ::output_picture()

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3328>
2022-11-16 13:12:38 +00:00
Seungha Yang
6a4c42c03f codecs: Signal required DPB size for AV1,MPEG2,VP8, and VP9 via new_sequence()
Make all codecs consistent so that subclass can know additional DPB
size requirement depending on render-delay configuration regardless
of codec. Note that render-delay feature is not implemented for AV1
yet but it's planned.

Also, consider new_sequence() is mandatory requirement, not optional

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2343>
2022-05-03 14:17:49 +00:00
Seungha Yang
aa476452fb codecs: Rename picture clear functions
Our convention for clear method is gst_clear_foo_bar().

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1897>
2022-03-11 20:20:17 +00:00
He Junyan
d867180b4e codecs: mpeg2decoder: drain() only when significant sequence changes.
There are a lot of info in the mpeg2's sequence(also including ext
display_ext and scalable_ext). We need to notify the subclass about
its change, but not all the changes should trigger a drain(), which
may change the output picture order. For example, the matrix changes
in sequence header does not change the decoder context and so no need
to trigger a drain().

Fixes: #899
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1375>
2021-11-24 14:42:57 +00:00
Nicolas Dufresne
aedd5f0dd1 codecs: mpeg2: Drain before a new_sequence get signalled
The decoder may need to re-allocate the output buffer, it is easier if all
pictured have been outputed.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1013>
2021-11-02 16:16:29 +00:00
Daniel Almeida
a8decde6d3 codecs: gstmpeg2decoder: add support for render delay
Some decoding APIs support delayed output for performance reasons.
One example would be to request decoding for multiple frames and
then query for the oldest frame in the output queue.
This also increases throughput for transcoding and improves seek
performance when supported by the underlying backend.

Introduce support in the mpeg2 base class, so that backends that
support render delays can actually implement it.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1013>
2021-11-02 16:16:29 +00:00
Daniel Almeida
946be1a85a codecs: GstMpeg2Slice: add field for sc_offset and size
Downstream might need the start code offset when decoding.

Previously this computation would be scattered in multiple sites. This
is error prone, so move it to the base class. Subclasses can access
slice->sc_offset directly without computing the address themselves
knowing that the size will also take the start code into account.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1013>
2021-11-02 16:16:29 +00:00
Seungha Yang
88437a9c9b codecs: Use GST_VIDEO_DECODER_ERROR() only for decoding error case
The GST_VIDEO_DECODER_ERROR() should be used only for robust/error-resilient
decoding purpose. Any other error codes such as not-negotiated or flushing
should be returned without modified for upstream to be able to handle
it immediately. (for example, application might want to try other
decoder element on not-negotiated)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1070>
2021-10-07 06:48:46 +00:00
Seungha Yang
7c557c2d65 codecs: mpeg2decoder: 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
Renamed from gst-libs/gst/codecs/gstmpeg2decoder.c (Browse further)