Review all interactions between the main video decoder stream thread
and the decode task to derive a correct sequence of operations for
decoding. Also avoid extra atomic operations that become implicit under
the GstVideoDecoder stream lock.
Fix hard reset for seek cases by flushing the GstVaapiDecoder queue
and completely purge any decoded output frame that may come out from
it. At this stage, the GstVaapiDecoder shall be in a complete clean
state to start decoding over new buffers.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
vaapidecode used to wait up to one second past the expected time of
presentation for the last decoded frame. This is not realistic in
practice when it comes to video pause/resume. Changed behaviour to
unconditionnally wait for a free VA surface prior to continuing the
decoding. The decode task will continue pushing the output frames to
the downstream element while also reporting errors at the same time
to the main thread.
https://bugzilla.gnome.org/show_bug.cgi?id=707108
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
The srcpad caps exposed for GStreamer 1.2 were missing any useful info
like framerate, pixel-aspect-ratio, interlace-mode et al. Not to mention
that it relied on possibly un-initialized data. Fix srcpad caps to be
initialized from a sanitized copy of GstVideoDecoder output state caps.
Note: the correct way to expose the srcpad caps triggers an additional
issue in core GStreamer auto-plugging capabilities as the correct caps
to be exposed should be format=ENCODED with memory:VASurface caps feature
at the minimum. In some situations, we could determine the underlying
VA surface format, but this is not always possible. e.g. cases where it
is not allowed to expose the underlying VA surface data, or when the
VA driver implementation cannot actually provide such information.
Currently, the decoder only supports YUV 4:2:0 output. So, expose the
output formats for GStreamer 1.2 in caps to a realistic subset. This
means NV12, I420 or YV12 but also ENCODED if we cannot determine the
underlying VA surface format, or if it is actually not allowed to get
access to the surface contents.
Fix vaapidecode srcpad caps to only expose RGBA video format for the
meta:GstVideoGLTextureUploadMeta feature. That's only what is supported
so far. Besides, drop this meta from the vaapisink sinkpad caps since
we really don't support that for rendering.
https://bugzilla.gnome.org/show_bug.cgi?id=711828
Automatically detect GStreamer API version. The --with-gstreamer-api
configure option now defaults to "autodetect" and configure then tries
to derive the GStreamer API version from the highest version based on
what pkg-config --modversion would report.
https://bugzilla.gnome.org/show_bug.cgi?id=711657
Fix raw YUV data uploaded as in the following pipeline:
$ gst-launch-1.0 filesrc video.yuv ! videoparse ! vaapipostproc ! vaapisink
The main reason why it failed was that the videoparse element simply
allocates GstBuffer with raw data chunk'ed off the sink pad without
any prior knowledge of the actual frame info. i.e. it basically just
calls gst_adapter_take_buffer().
We could avoid the extra copy performed in vaapipostproc if the videoparse
element was aware of the downstream pool and bothers copying line by
line, for each plane. This means that, for a single frame per buffer,
the optimizatin will be to allocate the video buffer downstream, map
it, and copy each line that is coming through until we need to fills
in the successive planes.
Still, optimized raw YUV uploads already worked with the following:
$ gst-launch-1.0 videotestsrc ! vaapipostproc ! vaapisink
https://bugzilla.gnome.org/show_bug.cgi?id=711250
[clean-ups, fixed error cases to unmap and unref outbuf]
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
If the currently selected deinterlacing method is not supported by the
underlying hardware, then try to downgrade the method to a supported one.
At the minimum, basic bob-deinterlacing shall always be supported.
Allow basic bob-deinterlacing to work when VPP is enabled. Currently,
this only covers bob-deinterlacing when the output pixel format is
explicitly set.
Add initial support for basic scaling with size specified through the
"width" and "height" properties. If either user-provided dimension is
zero and "force-aspect-ratio" is set to true (the default), then the
other dimension is scaled to preserve the aspect ratio.
If VPP is available, we always try to implicitly convert the source
buffer to the "native" surface format for the underlying accelerator.
This means that no optimization is performed yet to propagate raw YUV
buffers to the downstream element as is, if VPP is available. i.e. it
will always cause a color conversion.
Even if we only support deinterlacing for now, use flags to specify
which filters are to be applied to each frame we receive in transform().
This is preparatory work for integrating new filters.
Add support for "mixed" interlace-mode, whereby the video frame buffer
shall be deinterlaced only if its flags mention that's actually an
interlaced frame buffer.
Reset the buffer pool allocator only if the config caps changed in a
sensible way: format or resolution change. i.e. don't bother with
other caps like colorimetry et al. as this doesn't affect the way to
allocate VA surfaces or images.
Enable read and write mappings only if direct-rendering is supported.
Otherwise, this means that we may need to download data from the VA
surface first for correctness, even if the VA surface doesn't need to
be read at all. i.e. sometimes, READWRITE mappings are meant for
surfaces that are written to first, and read afterwards for further
processing.
https://bugzilla.gnome.org/show_bug.cgi?id=704078
Fix check for direct-rendering if the creation of VA surfaces with
an explicit pixel format is not support, e.g. VA-API < 0.34.0, and
that we tried to allocate a VA surface based on the corresponding
chroma type. i.e. in that particular case, we have to make sure that
the derived image has actually the expected format.
Fix GstVaapiVideoBufferPool::reset_buffer() to reset the underlying
memory resources, and more particularly the VA surface proxy. Most
importantly, the GstVaapiVideoMeta is retained. Cached surface in
memory are released, thus triggering a new allocation the next time
we need to map the buffer.
Make sure GstVaapiVideoMemory allocates VA surface proxies from a
pool stored in the parent VA memory allocator.
This fixes the following scenario:
- VA video buffer 1 is allocated from a buffer pool
- Another video buffer is created, and inherits info from buffer 1
- Buffer 1 is released, thus pushing it back to the buffer pool
- New buffer alloc request comes it, this yields buffer 1 back
- At this stage, buffers 1 and 2 still share the same underlying VA
surface, but buffer 2 was already submitted downstream for further
processing, thus conflicting with additional processing we were
about to perform on buffer 1.
Maybe the core GstBufferPool implementation should have been fixed
instead to actually make sure that the returned GstBuffer memory we
found from the pool is writable?
Always make sure to allocate a VA surface proxy for GstVaapiUploader
allocated buffers, i.e. make gst_vaapi_uploader_get_buffer() allocate
a proxy surface.
This fixes cases where we want to retain the underlying surface longer,
instead of releasing it back to the surface pool right away.
Add gst_caps_set_interlaced() helper function that would reset the
interlace-mode field to "progressive" for GStreamer >= 1.0, or the
interlaced field to "false" for GStreamer 0.10.
Fix ensure_operations() to release the VPP operations array if non
NULL, prior to returning to the caller. The former function was also
renamed to a more meaningful get_operations() since the caller owns
the returned array that needs to be released.
Fix first-time operation lookup through find_operation() if the set
of supported operations was not initially determined through the
gst_vaapi_filter_get_operations() helper function.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Fix intiialization of GstVaapiFilterOpData for colorbalance related
operations. In particular, fill in the va_subtype field accordingly.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
VASurfaceAttrib and VAProcFilterParameterBufferType are symbols
that need to be guarded for libva 0.34 and 0.33, respectively.
https://bugzilla.gnome.org/show_bug.cgi?id=709102
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Fix gst_vaapi_video_context_prepare() to also query upstream elements
for a valid GstContext. Improve comments regarding the steps used to
lookup or build that context, thus conforming to the GstContext API
recommendations.
https://bugzilla.gnome.org/show_bug.cgi?id=709112
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
The GStreamer 1.2.x packages sticked to the naming convention for 1.0.x
packages, i.e. -1.0 suffix. However, for gstreamer-vaapi packaging
purposes, update the versioning to -1.2 suffix instead.
If the allocation meta GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE is
requested, and more specifically under a GLX configuration, then add
the GstVideoGLTextureUploadMeta to the output buffer.
https://bugzilla.gnome.org/show_bug.cgi?id=703236
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Move VA video buffer memory from "video/x-surface,type=vaapi" format,
as expressed in caps, to the more standard use of caps features. i.e.
add "memory:VASurface" feature attribute to the associated caps.
https://bugzilla.gnome.org/show_bug.cgi?id=703271
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Fix gst_vaapidecode_query() to correctly display the query type name,
instead of randomly displaying that we shared the underlying display.
Also add debug info for the GstVaapiSink::query() handler, i.e. the
supplied query type name actually.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Add support for the new GstContext API from GStreamer 1.2.x.
- implement the GstElement::set_context() hook ;
- reply to the `context' query from downstream elements.
https://bugzilla.gnome.org/show_bug.cgi?id=703235
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Add thin compatibility layer for the deprecated GstVideoContext API.
For GStreamer API >= 1.2, this involves the following two functions:
- gst_vaapi_video_context_prepare(): queries if a context is already
set in the pipeline ;
- gst_vaapi_video_context_propagate(): propagates the newly-created
context to the rest of the pipeline.
https://bugzilla.gnome.org/show_bug.cgi?id=703235
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Port vaapidecode and vaapisink plugins to GStreamer API >= 1.2. This
is rather minimalistic so that to test the basic functionality.
Disable vaapipostproc plugin for now as further polishing is needed.
Also disable GstVideoContext interface support since this API is now
gone in 1.2.x. This is preparatory work for GstContext support.
https://bugzilla.gnome.org/show_bug.cgi?id=703235
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Don't try to create pixmaps if we have not requested that feature. This
fixes execution for non-X11 backends, and most specifically DRM video
output mode.
Fix calculation of MCU count for image sizes that are not a multiple
of 8 pixels in either dimension, but also for non-common sampling
factors like 4:2:2 in non-interleaved mode.
Add support for images with multiple scans per frame. The Huffman table
can be updated before SOS, and thus possibly requiring multiple uploads
of Huffman tables to the VA driver. So, the latter must be able to cope
with multiple VA buffers of type 'huffman-table' and with the correct
sequential order.
Improve robustness when some expected packets where not received yet
or that were not correctly decoded. For example, don't try to decode
a picture if there was no valid frame headers.
Improve debugging and error messages. Rename a few variables to fit the
existing naming conventions. Change some fatal asserts to non-fatal
error codes.
Split the input buffer data into decoder units that represent a JPEG
segment. Handle scan decoder unit specifically so that it can include
both the scan header (SOS) but also any other ECS or RSTi segment.
That way, we parse the input buffer stream only once at the gst-vaapi
level instead of (i) in gst_vaapi_decoder_jpeg_parse() to split the
stream into frames SOI .. EOI and (ii) in decode_buffer() to further
determine segment boundaries and decode them.
In practice, this is a +15 to +25% performance improvement.
Fix decode_buffer() function to gracefully skip comment (COM) segments.
This fixes decoding of streams generated by certain cameras, e.g. like
the Logitech Pro C920.
https://bugzilla.gnome.org/show_bug.cgi?id=708208
Signed-off-by: Junfeng Xu <jun.feng.xu@intel.com>
Look for the exact image bounds characterised by the <SOI> and <EOI>
markers. Use the gst_jpeg_parse() codec parser utility function to
optimize the lookup for the next marker segment.
https://bugzilla.gnome.org/show_bug.cgi?id=707447
Fix calculation of the offset to the next marker segment since the
correction of the codecparser part to match the API specification.
i.e. the GstJpegMarkerSegment.size field represents the size in bytes
of the segment minus any marker prefix.
https://bugzilla.gnome.org/show_bug.cgi?id=707447
Signed-off-by: Junfeng Xu <jun.feng.xu@intel.com>
