Commit graph

101 commits

Author SHA1 Message Date
Ezequiel Garcia
3b42c1878d v4l2codecs: vp8: Check kernel version
Print a warning if the kernel version is too old.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2075>
2021-06-29 21:01:29 +00:00
Ezequiel Garcia
d036b4aad4 v4l2codecs: vp8: Update to the new uAPI
Starting from Linux v5.13, the V4L2 stateless VP8 uAPI
is updated and stable.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2075>
2021-06-29 21:01:29 +00:00
Nicolas Dufresne
4ac9f91921 alphadecodebin: Fix stall due to QoS
alphacombine element is a simple element that assumes buffers are always
paired, or at least that missing buffers are signalled with a GAP. The QoS
implementation in the GstVideoDecoder base class allow decoders dropping
frames independently and that could lead to stall in alphacombine.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2326>
2021-06-14 16:33:15 -04:00
Daniel Almeida
89bc464360 v4l2codecs: gstv4l2codecsvp8dec: 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/gst-plugins-bad/-/merge_requests/2150>
2021-05-31 15:48:24 -04:00
Nicolas Dufresne
49992be643 v4lcodecs: Validate src formats
This add src format validation, this avoid registering element for
drivers we don't support any of their src formats. This also special
case the AlphaDecodeBin wrapper, as we know that alphacombine element
only support I420 and NV12 for now.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2272>
2021-05-27 17:01:11 -04:00
Daniel Almeida
9e86ac4a22 v4l2codecs: add wrappers for alpha decode
codecalpha is a new plugin introduced to support VP8/VP9 alpha as
defined in the WebM and Matroska specifications. It splits the stream
into two streams, one for the alpha and one for the actual content,
then it decodes them separately with vpxdec and finally combine the
results as A420 or AV12 (i.e. YUV + an extra alpha plane).

The workflow above is setup by means of a bin, gstcodecalphabin.

This patch simulates the same workflow into the v4l2codecs namespace,
thus using the new v4l2 stateless decoders for hardware acceleration.

This is so we can register the new alpha decode elements only if the
hardware produces formats we support, i.e. I420 or NV12 for now.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2272>
2021-05-27 17:00:06 -04:00
Nicolas Dufresne
f992c521c3 v4l2codecs: allocator: Keep dmabuf mapped
DMABuf allocator already implements DMABuf Sync, meaning that doing
mmap/munmap (unless the mode have changed) is not required. In fact, on
systems with IOMMU it makes the kernel redo the mmu table which is visible
in the CPU usage.

This change reduces CPU usage when decoding
bbb_sunflower_2160p_60fps_normal.mp4 on RK3399 SoC from over 30% to
around 15%.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2152>
2021-04-08 15:22:49 -04:00
Nicolas Dufresne
24eda30bd7 v4l2codecs: Fix holding of reference picture buffer
The picture buffer (V4L2 CAPTURE buffer) was being released immediatly
when the request was done. This was problematic since even after the
request is done, the picture buffer might still be used as a reference
and should not be reused for further decoding yet.

This change effectively bind the picture buffer lifetime to the request.
So that if the picture is never showned (decode only frame) or the request
queue is full before the buffer is displayed, the picture buffer will
remain alive.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2142>
2021-04-07 19:00:21 +00:00
Daniel Almeida
4373535bb5 v4l2codecs: gstv4l2decoder.c: Add missing include
Add missing include for sys/ioctl.h so that these warnings dissapear
when compiling:
../subprojects/gst-plugins-bad/sys/v4l2codecs/gstv4l2decoder.c:179:9:
warning: implicit declaration of function ‘ioctl’
[-Wimplicit-function-declaration]

Signed-off-by: Daniel Almeida <daniel.almeida@collabora.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2140>
2021-04-06 17:34:18 +00:00
Benjamin Gaignard
5e8daa1c5c v4l2codecs: h264: retrieve interlaced information
Lets the decoder knows if the frames are interlaced or not.
Provide this information to the driver while filling reference
pictures fields in slice params structure

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1624>
2021-03-02 22:03:34 +00:00
Nicolas Dufresne
84daea6be2 v4l2codecs: h264: Reduce controls for subsequent slices
Only the SLICE_PARAMS and PRED_WEIGHTS are needed for the second and
following slices.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1624>
2021-03-02 22:03:34 +00:00
Ezequiel Garcia
1c082b79e1 v4l2codecs: h264: Implement optional scaling matrix
The new H.264 uAPI requires that all drivers support
scaling matrix only as an option, when a non-flat
scaling matrix is provided in the bitstream headers.

Take advantage of this and avoid passing the scaling
matrix if not needed.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1624>
2021-03-02 22:03:34 +00:00
Ezequiel Garcia
78756ecba9 v4l2codecs: h264: Only set SPS control if needed
Given V4L2 controls are cached in V4L2, there is no need
to set them if they don't change. Set the SPS control
only if a new sequence was received by the parser.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1624>
2021-03-02 22:03:34 +00:00
Ezequiel Garcia
ae9411e334 v4l2codecs: h264: Only slice-based need SLICE_PARAMS and PRED_WEIGHTS
Frame-based decoding mode doesn't require SLICE_PARAMS and
PRED_WEIGHTS controls.

Moreover, if the driver doesn't support these two controls, trying
to set them will fail. Fix this by only setting these on
slice-based decoding mode.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1624>
2021-03-02 22:03:34 +00:00
Ezequiel Garcia
010565eb7f v4l2codecs: h264: Add API checks
Check that the V4L2 H264 controls' sizes match
our expectation. If not, then probably there's an API
mismatch which will cause errors or decoding corruption.

Also, print a warning if the kernel version is too old.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1624>
2021-03-02 22:03:34 +00:00
Ezequiel Garcia
7d6b06ca1b v4l2codecs: h264: Update to the new uAPI
Starting from Linux v5.11, the V4L2 stateless H.264 uAPI
is updated and stable.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1624>
2021-03-02 22:03:34 +00:00
Ezequiel Garcia
56ecc19067 v4l2codecs: h264: Set the scaling matrix present flag unconditionally
We are currently always setting and passing a scaling matrix,
so need to set this flag accordingly. Passing a scaling matrix
optionally will be implemented in follow-up commit.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1624>
2021-03-02 22:03:34 +00:00
Seungha Yang
95e1ce7e7a v4l2decoder: Small documentation fix
Fixing documentation even though those methods are v4l2codecs plugin internals

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2000>
2021-02-02 04:33:33 +09:00
Nicolas Dufresne
99ebbf72ef v4l2codecs: h264: Enable 1 frame delay on non-live
When doing non-live decoding, enable 1 frame of delay. This will ensure
that we queue the next decoding job before we actually wait for the previous
to complete. This improves throughput notably on RK3399.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1881>
2021-01-29 19:44:48 +00:00
Nicolas Dufresne
241a490084 v4l2codecs: Add support for render delay
This add support for render delay in the decoder helper.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1881>
2021-01-29 19:44:48 +00:00
Nicolas Dufresne
88b93416fe v4l2codecs: Coding style fix
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1881>
2021-01-29 19:44:48 +00:00
Nicolas Dufresne
13a40b1da9 v4l2codecs: Poll inside set_done()
This removes the need for the gst_v4l2_decoder_is_done() helper and
simplify slightly the subclass code.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1881>
2021-01-29 19:44:48 +00:00
Nicolas Dufresne
1c2f391b57 v4l2codecs: Make request structure ref-counted
This adds a non-thread safe refcount to the GstV4l2Request. This will
allow holding on more then one request in order to implement render
delay. This is made non-thread safe for speed as we know this will all
happen on the same streaming thread.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1881>
2021-01-29 19:44:48 +00:00
Nicolas Dufresne
3db6f45ca9 v4l2codecs: Rework handling of queues and pending requests
Starting from this patch, all queue and dequeue operation happening
on V4L2 is now abstracted with the request. Buffers are dequeued
automatically when pending requests are marked done and only 1 in-flight
request is now used.

Along with fixing issues with request not being reused with slice
decoders, this change reduces the memory footprint by allocating only
two bitstream buffers.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1881>
2021-01-29 19:44:48 +00:00
Seungha Yang
7a53d7a4aa codecs: h264decoder: Store reference picture type using enum value
Managing reference picture type by using two variables
(ref and long_term) seems to be redundant and that can be
represented by using a single enum value.

This is to sync this implementation with gstreamer-vaapi so that
make comparison between this and gstreamer-vaapi easier and also
in order to minimize the change required for subclass to be able
to support interlaced.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1534>
2020-11-13 15:25:42 +00:00
Nicolas Dufresne
0f5fc9646e v4l2codecs: vp8: Allow baseclass from skipping frames
In preparation for !1670, this will allow the base class from skipping frames
that should not be displayed. Previously it would complain about unordered
decoding taking place in the driver.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1696>
2020-10-15 13:15:02 -04:00
Nicolas Dufresne
a3e6d9fc24 v4l2codecs: decoder: Unmark previously pending request
requests are executed in order, so while dequeuing sink buffers for previous
request, also mark these request as no longer pending. This will allow reusing
the request later.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1696>
2020-10-15 13:15:02 -04:00
Nicolas Dufresne
2e3bc60422 v4l2codecs: decoder: Properly remove pending requests
Pass the pointer instead of NULL in order to find and remove properly any
pending request from the queue. This coding error was leading to use after
free in error and early exit cases.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1696>
2020-10-15 13:14:57 -04:00
Nicolas Dufresne
20785e775e v4l2slh264dec: Minor cleanup
Move few variables in their respective scope.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1563>
2020-09-10 15:21:57 +00:00
Nicolas Dufresne
cc8e1ca2ac v4l2slh264dec: Fix B-Frame weight table
We where not setting the luma l1 weight table.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1563>
2020-09-10 15:21:57 +00:00
Seungha Yang
deaa29bd96 codecs: vp8decoder: Sync up with h264decoder implementation
Pass GstVideoCodecFrame with GstVp8Picture to new_picture() and
output_picture() methods for subclass to be able to reference
it directly.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1458>
2020-07-23 15:48:05 -04:00
Seungha Yang
c78fe6bfb0 v4l2codecs: vp8dec: Remove white space
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1458>
2020-07-23 18:57:02 +00:00
Seungha Yang
87b150c42a v4l2codecs: h264dec: Remove outdated comment
... and unnecessary user data clear on GstVideoCodecFrame

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1457>
2020-07-23 18:07:58 +09:00
Seungha Yang
96b9000289 v4l2codecs: h264dec: Fix leak on decoding failure
Given GstVideoCodecFrame and GstH264Picture should be cleared,
and the return must be GST_FLOW_ERROR, not boolean value.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1457>
2020-07-23 18:07:11 +09:00
Nicolas Dufresne
bb9fbf0626 v4l2codecs: h264dec: Use the new picture lookup
This will avoid having to create a reference chain from CodecFrame
to GstH264Picture to GstV4l2Request.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1449>
2020-07-21 17:18:42 +09:00
Seungha Yang
e921a07715 codecs: h264decoder: Pass GstVideoCodecFrame to output_picture()
All subclasses are retrieving list to get target output frame, which
can be done by baseclass. And pass the ownership of the GstH264Picture
to subclass so that subclass can clear implementation dependent resources
before finishing the frame.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1449>
2020-07-21 17:18:42 +09:00
Seungha Yang
7a024a740f codecs: h264decoder: Don't attach extra ref of GstH264Picture to GstVideoCodecFrame
The lifecycle of GstH264Picture is being managed by our DPB
implementation. If it's still required, subclass can do that
by itself in the new_picture() method.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1449>
2020-07-21 17:18:42 +09:00
Nicolas Dufresne
7b3c101ced v4l2codecs: Enable 32x32 tiled NV12 support
This is used by Cedrus driver to support Allwinner VPU, also known as the
sunxi platforms.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1437>
2020-07-15 13:24:13 +00:00
Nicolas Dufresne
1bef43f9d4 v4l2decoder: Track pending request
With the asynchronous slice decoding, we only queue up to 2 slices
per frames. That side effect is that now we are dequeuing bitstream
buffers in both decoding and presentation order. This would lead to
a bitstream buffer from a previous frame being dequeued instead of
the expected last slice buffer and lead to us trying to queue an
already queued bitstream buffer.

We now fix this by tracking pending requests. As request are executed
in decoding order, we marking a request done, we can effectively
dequeue bitstream buffer from all previous request, as they have been
executed already.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1395>
2020-07-02 12:21:51 -04:00
Nicolas Dufresne
a88e63dd2f v4l2decoder: Improve debug tracing
Add some missing traces and move per-slice operation to TRACE level to
reduce the noise level.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1395>
2020-07-02 12:21:51 -04:00
Nicolas Dufresne
d5a205cff4 v4l2decoder: Convert request pool to GstQueueArray
The decoder is not being access from multiple threads, instead it is
always protected by the streaming lock. For this reason, a
GstAtomicQueue for the request pool is overkill and may even introduce
unneeded overhead. Use a GstQueueArray in replacement, the
GstQueueArray is a good fit since the number of item is predictable and
unlikely to vary at run-time.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1395>
2020-07-02 12:21:51 -04:00
Nicolas Dufresne
a2eb1b57ff v4l2slh264dec: Wait on previous pending request in slice mode
In slice mode, we'll do one request per slice. In order to recycle
bitstream buffer, and not run-out, wait for the last pending
request to complete and mark it done.

We only wait after having queued the current slice in order to reduce
that potential driver starvation and maintain performance (using dual
buffering).

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1395>
2020-07-02 12:21:51 -04:00
Nicolas Dufresne
b20c6fe6c4 v4l2slh264dec: Renew bitstream buffer after submitting slice
Submitting a slice actually clears the bitstream buffer. Ensure we
have a newly allocated bitstream buffer for the next slice.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1395>
2020-07-02 12:21:51 -04:00
Nicolas Dufresne
bc1a0323a9 v4l2slh264dec: Factor out bitstream allocation
No functional changes.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1395>
2020-07-02 12:21:51 -04:00
Nicolas Dufresne
779f331bd4 v4l2slh264dec: Add a helper to ensure output buffer
In preparation of multi-slice decoding, we will decode multiple
slices into the same buffer. This will ensure we have a buffer to
decode to, queued into the driver.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1395>
2020-07-02 12:21:51 -04:00
Nicolas Dufresne
d65f7de650 v4l2slh264dec: Factor out request wait
This will be reused to wait for previous slices to be complete
when dealing with following slices (in slice decoding mode).

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1395>
2020-07-02 12:21:51 -04:00
Nicolas Dufresne
176a860169 v4l2slh264dec: Remove double return in submit_bitstream()
This is code cleanup, no functional changes.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1395>
2020-07-02 12:21:51 -04:00
Nicolas Dufresne
1f48e60bde v4l2slh264dec: Fix typo in debug trace
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1395>
2020-07-02 12:21:51 -04:00
Nicolas Dufresne
483539f45c v4l2slh264dec: Fix reading mode and start code type
These two controls are not pointer based, so we don't need to pass any size or
pointer and need to copy the values afterward. This fixes H264 decoding
regression with Hantro and RKVDEC drivers.

Fixes 037730a787

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1330>
2020-06-09 10:52:44 -04:00
Nicolas Dufresne
d16367f046 v4l2codecs: h264: Add missing break
There was a missing break for the 4:4:4 case which would break the sizeimage
calculation. We don't currently have hardware that supports 4:4:4, so this
code wasn't tested. This was detected by Coverity.

CID 1463592 1463591

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1283>
2020-05-21 20:12:07 +00:00