platform/upstream/gstreamer.git
8 years agoREADME: Update
Sreerenj Balachandran [Mon, 7 Dec 2015 10:39:23 +0000 (12:39 +0200)]
README: Update

8 years agotexture: detect GL version and use the proper API
Víctor Manuel Jáquez Leal [Thu, 26 Nov 2015 09:34:12 +0000 (10:34 +0100)]
texture: detect GL version and use the proper API

When receiving the texture from the application or the video sink, we must
know it size and border. To query the texture the API has changed according to
the OpenGL version used in the GL context of the application/vsink.

This patch checks the current context API type and queries the texture
according to this detected API.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=753099

8 years agotexture: check for expected target and format
Víctor Manuel Jáquez Leal [Thu, 26 Nov 2015 09:19:32 +0000 (10:19 +0100)]
texture: check for expected target and format

gst_vaapi_texture_glx_new_wrapped() only handles a GL_TEXTURE_2D target and
formats GL_RGBA or GL_BGRA.

This patch adds a debugging verification of those values.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=753099

8 years agolibs: add gl3_bind_texture_2d()
Víctor Manuel Jáquez Leal [Thu, 26 Nov 2015 09:26:10 +0000 (10:26 +0100)]
libs: add gl3_bind_texture_2d()

Since OpenGL3.1 removed the fixed pipelines[1] enabling 2D textures is not
needed. In particular, the Intel's Mesa implementation complains if it is
called.

This patch add a new binding function for 2D textures, without enabling
gl3_bind_texture_2d()[2].

1. https://www.opengl.org/wiki/Fixed_Function_Pipeline
2. https://www.opengl.org/wiki/Common_Mistakes#OOP_and_hidden_binding

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=753099

8 years agolibs: add gl_get_current_api()
Víctor Manuel Jáquez Leal [Thu, 26 Nov 2015 09:14:45 +0000 (10:14 +0100)]
libs: add gl_get_current_api()

In order to know which OpenGL API use, we must detect the API type of current
context. This patch adds the function gl_get_current_api() which returns the
OpenGL API type.

This function is an adaptation of gst_gl_context_get_current_gl_api() from
GstGL.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=753099

8 years agobuild: Add gmodule dependency for libgstvaapi_egl
Sreerenj Balachandran [Fri, 27 Nov 2015 10:29:11 +0000 (12:29 +0200)]
build: Add gmodule dependency for libgstvaapi_egl

https://bugzilla.gnome.org/show_bug.cgi?id=756259

8 years agopatches/videoparsers: h264: Disable passthorugh mode enabling
Sreerenj Balachandran [Fri, 27 Nov 2015 12:24:55 +0000 (14:24 +0200)]
patches/videoparsers: h264: Disable passthorugh mode enabling

This is a quick fix for regression introduced by the upstream
commit e8908f5aeef952566f6bccde743c7735d3f8c6ef in h264 videoparser.

The patch is disabling the passthrough mode, otherwise it will
break multi-layer mvc stream parsing.

https://bugzilla.gnome.org/show_bug.cgi?id=758656

8 years agobuild: add gsth265parse patches conditionally
Víctor Manuel Jáquez Leal [Wed, 25 Nov 2015 13:12:53 +0000 (15:12 +0200)]
build: add gsth265parse patches conditionally

As gsth265parse was added in GStreamer 1.4, and gstreamer-vaapi still support
GStreamer 1.2, the patching of gsth265parse must be conditional to the target
GStreamer version.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=755525

8 years agobuild: declare correctly parse lib built files
Víctor Manuel Jáquez Leal [Wed, 25 Nov 2015 13:11:28 +0000 (15:11 +0200)]
build: declare correctly parse lib built files

This is a continuation of commit fc8a0d12

When declaring BUILT_SOURCES, those files should not be distributed. This
patch avoids the distribution of the generated source code.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=755525

8 years agobuild: libvpx: Add missing source file
Sreerenj Balachandran [Tue, 24 Nov 2015 15:14:20 +0000 (17:14 +0200)]
build: libvpx: Add missing source file

8 years agovaapipostproc: Correctly detect the caps change
Sreerenj Balachandran [Mon, 23 Nov 2015 15:21:23 +0000 (17:21 +0200)]
vaapipostproc: Correctly detect the caps change

This is a quick fix for regression introuduced by the
commit 757833230bc73b8e3b4e31649e4618ba802bea51

With out this, the gst_vaapipostproc_create() will
never get invoked.

https://bugzilla.gnome.org/show_bug.cgi?id=758543

8 years agobuild: libvpx: update the sources lists
Víctor Manuel Jáquez Leal [Wed, 18 Nov 2015 19:48:30 +0000 (20:48 +0100)]
build: libvpx: update the sources lists

`make dist` broke since commit f06798 (libvpx: Update the submodule to
libvpx-1.4.0) because the sources.frag does not contain all the module
sources.

This patch updates thoroughly the sources.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=755525

8 years agovaapipostproc: don't set caps change at first set
Víctor Manuel Jáquez Leal [Mon, 16 Nov 2015 16:49:01 +0000 (17:49 +0100)]
vaapipostproc: don't set caps change at first set

When the source caps change, the filter is destroyed and recreated.
Nonetheless, this happens every time the vaapipostproc starts, since the caps
change detection algorithm does not take in consideration when the caps are
set by first time.

This patch intents to be an optimization, to avoid a useless filter
destroy-creation cycle when the sources caps are set for first time.

The new helper function video_info_update() is a refactorization to avoid
duplicated code.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=758007

8 years agovaapipostproc: params video_info_changed() callers
Víctor Manuel Jáquez Leal [Thu, 12 Nov 2015 15:13:25 +0000 (16:13 +0100)]
vaapipostproc: params video_info_changed() callers

The signature is video_info_changed(old_vip, new_vip). Nonetheless the callers
swapped the the order. This didn't raise problems since the comparison of both
structures were not affected by its semantics.

But still it would be better to fix this to keep the coherence of the code.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=758007

8 years agobuild: declare real built files
Víctor Manuel Jáquez Leal [Thu, 24 Sep 2015 10:35:44 +0000 (10:35 +0000)]
build: declare real built files

When runnig the `make dist` target from a clean tree, it fails because
if could not find the copied files from codecparsers submodule.

They weren't copied because they weren't declared as built sources.

This patch removes the stamp mechanism and use the actual file list to copy
as the built sources. Also it fixes the duplication of the parser files.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=755525

8 years agodecoder: vp9: Fix last/golden/altref frame index setting
Sreerenj Balachandran [Tue, 17 Nov 2015 17:37:07 +0000 (19:37 +0200)]
decoder: vp9: Fix last/golden/altref frame index setting

Always fill VADecPictureParameterBufferVP9 last/golden/altref indices
based on what ever reference frame indices encoded in frame header.

8 years agodebian: remove custom parallel compilation
Víctor Manuel Jáquez Leal [Tue, 25 Aug 2015 16:01:51 +0000 (16:01 +0000)]
debian: remove custom parallel compilation

In order to build a debian package with upstream source, the user should
do

  ./autogen.sh
  cp -a debian.upstream debian
  debuild -eDEB_BUILD_OPTIONS="parallel=8" -us -uc -b

The environment variable DEB_BUILD_OPTIONS="parallel=8" is the canonical
way to make a parallel build (-j8 in this case).

This commit removes the script in debian/rules that detects the number of
cpus, requested by the environment variable DEBIAN_BUILD_NCPUS, which is not
official in debian.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=754087

8 years agodecoder: vp9: Fix PTS calculation of cloned frames
Sreerenj Balachandran [Mon, 16 Nov 2015 16:22:55 +0000 (18:22 +0200)]
decoder: vp9: Fix PTS calculation of cloned frames

8 years agodecoder: vp9: Avoid unnecessary show_frame flag checking while doing picture output
Sreerenj Balachandran [Mon, 16 Nov 2015 16:22:33 +0000 (18:22 +0200)]
decoder: vp9: Avoid unnecessary show_frame flag checking while doing picture output

We always set GST_VAAPI_PICTURE_FLAG_SKIPPED for DECODE_ONLY frames and the
gstvaapidecoder base calss is reponsible for handling those frames later on.
No need for explicit verification of frame header's show_frame in order to
do picture outputing.

8 years agodecoder: vp9: Fix ref picture update while doing repeat frame
Sreerenj Balachandran [Mon, 16 Nov 2015 16:22:14 +0000 (18:22 +0200)]
decoder: vp9: Fix ref picture update while doing repeat frame

Don't try to do frame decoding and reference picture update
while receiving a vp9 frame having show_existing_frame flag
set as TRUE.

8 years agodecoder: vp9: Add repeat-frame display handling
Sreerenj Balachandran [Mon, 16 Nov 2015 16:21:56 +0000 (18:21 +0200)]
decoder: vp9: Add repeat-frame display handling

If vp9 frame header come up with show_existing_frame flag set,
we should duplicate the existing decoded frame as current frame to
be displayed.

8 years agovaapidecodebin: add me as element co-author
Víctor Manuel Jáquez Leal [Thu, 12 Nov 2015 10:07:38 +0000 (11:07 +0100)]
vaapidecodebin: add me as element co-author

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757957

8 years agovaapidecodebin: try to get display from decoder
Víctor Manuel Jáquez Leal [Thu, 12 Nov 2015 11:47:01 +0000 (12:47 +0100)]
vaapidecodebin: try to get display from decoder

Rather than create a dummy display, if none has propagated as a context, we
should try to get the one from vaapidecode.

As the bin is already in READY state, the vaapidecode should be also in that
state. That means that the contexts have been negotiated, and it should have
already a display.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757957

8 years agovaapidecodebin: add postprocessor dynamically
Víctor Manuel Jáquez Leal [Wed, 11 Nov 2015 18:04:25 +0000 (19:04 +0100)]
vaapidecodebin: add postprocessor dynamically

The former approach to left the bin unfinished has some problems: the context
cannot be shared because the vaapidecode is unlinked in many cases, leading to
creating a VADisplay twice.

Initially the bin is fully functional, constructed as

(-----------------------------------)
|            vaapidecodebin         |
|   (-------------)    (-------)    |
|<--| vaapidecode |--->| queue |--->|
|   (-------------)    (-------)    |
(-----------------------------------)

When the context is shared and the VADisplay has VPP capabilities, before
changing to READY state, the bin is reconfigured dynamically, adding the
vaapipostproc element afeter the queue:

(--------------------------------------------------------)
|                       vaapidecodebin                   |
|   (-------------)    (-------)    (---------------)    |
|<--| vaapidecode |--->| queue |--->| vaapipostproc |--->|
|   (-------------)    (-------)    (---------------)    |
(--------------------------------------------------------)

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757957

8 years agovaapidecodebin: delay the bin configuration
Víctor Manuel Jáquez Leal [Wed, 11 Nov 2015 15:33:24 +0000 (16:33 +0100)]
vaapidecodebin: delay the bin configuration

Delay the bin configuration until changing to READY state. This is because we
should add the vaapipostproc element until the vaapidecode has emitted the
HAVE_CONTEXT message, so de gst_bin_add() could set the context set to
vaapipostproc.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757957

8 years agodecoder: vp9: Add crop rectangle support.
Sreerenj Balachandran [Fri, 13 Nov 2015 17:39:56 +0000 (19:39 +0200)]
decoder: vp9: Add crop rectangle support.

Set crop rectange if:
There is display_width and display_height which is different from actual width/height
 or
The changed resolution is less than the actual configured dimension of surfaces

8 years agodecoder: vp9: Fix the context and surface pool reset for multi resolution video
Sreerenj Balachandran [Fri, 13 Nov 2015 17:23:05 +0000 (19:23 +0200)]
decoder: vp9: Fix the context and surface pool reset for multi resolution video

Unlike other decoders, vp9 decoder doesn't need to reset the
whole context and surfaces for each resolution change. Context
reset only needed if resolution of any frame is greater than
what actullay configured. There are streams where a bigger
resolution set in ivf header or webm header but actual resolution
of all frames are less. Also it is possible to have inter-prediction
between these multi resolution frames.

8 years agodecoder: vp9: Fill the VADecPictureParameterBufferVP9 width/height from frame header
Sreerenj Balachandran [Fri, 13 Nov 2015 16:58:33 +0000 (18:58 +0200)]
decoder: vp9: Fill the VADecPictureParameterBufferVP9 width/height from frame header

Always fill width/height of VADecPictureParameterBufferVP9 from frame header.
Preliminary fix for supproting multi resolution video decode.

8 years agovaapidecode: Add comments for corner case fixes and fix couple of indentations.
Sreerenj Balachandran [Fri, 13 Nov 2015 16:51:27 +0000 (18:51 +0200)]
vaapidecode: Add comments for corner case fixes and fix couple of indentations.

8 years agodecoder: vp9: Set lossless flag from frame header
Sreerenj Balachandran [Fri, 13 Nov 2015 16:41:53 +0000 (18:41 +0200)]
decoder: vp9: Set lossless flag from frame header

8 years agocodecparsers: Update to gst-vaapi-branch d9f25
Sreerenj Balachandran [Fri, 13 Nov 2015 16:40:52 +0000 (18:40 +0200)]
codecparsers: Update to gst-vaapi-branch d9f25

d9f2527: codecparsers: vp9: Set lossless flag in frame header

8 years agolibs: vp9: remove unused symbols
Víctor Manuel Jáquez Leal [Wed, 11 Nov 2015 18:16:16 +0000 (19:16 +0100)]
libs: vp9: remove unused symbols

clang complains about a couple variables and one label which were not
used. This patch removes them.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757958

8 years agocodecparsers: Update to gst-vaapi-branch da251bb
Sreerenj Balachandran [Tue, 10 Nov 2015 17:00:22 +0000 (19:00 +0200)]
codecparsers: Update to gst-vaapi-branch da251bb

da251bb: codecparsers: vp9: Optimize the memory allocation
f5759f4: codecparsers: vp9: Fix the wrong memcpy of probability arrays

8 years agoplugin: guard pointers to pad query functions
Víctor Manuel Jáquez Leal [Thu, 5 Nov 2015 11:58:52 +0000 (12:58 +0100)]
plugin: guard pointers to pad query functions

Since gstreamer 1.4 is not required to have pad query functions if the query
vmethods are used.

This patch guards out the pad query functions for gstreamer < 1.4

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757629

8 years agovaapiencode: use pad query vmethods
Víctor Manuel Jáquez Leal [Thu, 5 Nov 2015 11:39:55 +0000 (12:39 +0100)]
vaapiencode: use pad query vmethods

GstVideoEncoder, the base class of vaapiencode, added support for pad queries
as virtual methods since gstreamer 1.4. This patch enables those vmethods,
while keeps support for previous versions of gstreamer.

This patch is relevant since GstVideoEncoder takes care of other queries that
we are currently ignoring.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757629

8 years agovaapidecode: return pad's template caps if no display
Víctor Manuel Jáquez Leal [Wed, 28 Oct 2015 12:01:04 +0000 (13:01 +0100)]
vaapidecode: return pad's template caps if no display

A caps query can occur before the element has a display. In that case, the
element can return its pad's template. But when the element already has a
display, and the caps probe fails, the element shall return an empty caps, so
the auto-plug could try with another decoder.

If the element has a display and the caps probe works, then the computed caps
should be returned.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757598

8 years agoplugins: don't create display at caps query
Víctor Manuel Jáquez Leal [Wed, 28 Oct 2015 11:59:02 +0000 (12:59 +0100)]
plugins: don't create display at caps query

Caps query can happen before the element has a bus. The display creation should
be should occur on the context negotiation, when the bus is already configured.
Then at caps query no display should be created.

Instead of force the display creation, we graciously fail the allowed_caps()
creation.

This change only applies for vaapidecode and vaapisink. The vaapipostroc, as a
basetransform descendant, seems to be not affected by this, nor the encoders.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757598

8 years agoplugins: fix context query handling
Víctor Manuel Jáquez Leal [Wed, 4 Nov 2015 20:38:42 +0000 (21:38 +0100)]
plugins: fix context query handling

The current context query handling design is flawed: the function
gst_vaapi_reply_to_query() returns FALSE either if the query is not a
GST_CONTEXT_QUERY of if the query could not be handled correctly. But the
pad query function should handle differently each case.

This patch changes the gst_vaapi_reply_to_query() for
gst_vaapi_handle_context_query() and changes it usage in all the vaapi plugins
to match the correct context query handling.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757598

8 years agoplugin: don't lose previous context at query
Víctor Manuel Jáquez Leal [Wed, 4 Nov 2015 19:37:05 +0000 (20:37 +0100)]
plugin: don't lose previous context at query

When processing the GST_CONTEXT_QUERY we should not lose the previous
context in the query, we should only add our display structure.

This patch copies the old context, if it is there, and stamp our display on
it. Otherwise, a new context is created.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757598

8 years agovaapivideocontext: add gst_vaapi_video_context_set_display()
Víctor Manuel Jáquez Leal [Wed, 4 Nov 2015 19:29:03 +0000 (20:29 +0100)]
vaapivideocontext: add gst_vaapi_video_context_set_display()

This function set the display to an already created context. This function is
going to be used later.

Also, gst_vaapi_video_context_new_with_display() now uses this function.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757598

8 years agoplugins: check if display is set in sync
Víctor Manuel Jáquez Leal [Fri, 30 Oct 2015 11:27:16 +0000 (12:27 +0100)]
plugins: check if display is set in sync

Since the context messages are sync'ed, the display assignation happens in the
same thread, hence we can know if the display was found or not as soon we call
for it.

In order to take advantage of it, gst_vaapi_video_context_prepare() receives,
as a new parameter, the address of the plugin's display, and reports back if
the display was found and set.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757598

8 years agoplugins: set display through context
Víctor Manuel Jáquez Leal [Fri, 30 Oct 2015 11:33:48 +0000 (12:33 +0100)]
plugins: set display through context

Instead of setting the display to the plugin directly after its creation, do
it through the gstreamer's context mechanism, avoiding double assignations.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757598

8 years agovaapivideocontext: rename context structure
Víctor Manuel Jáquez Leal [Mon, 2 Nov 2015 17:20:07 +0000 (18:20 +0100)]
vaapivideocontext: rename context structure

The context structure is named "display" which is too generic. The contrary
happens, for example, with GstGL, what uses the same name as the context, and
its logs make more sense.

This patch renames the context structure with the same name as the
context, thus GST_PTR_FORMAT can pretty print it.

https://bugzilla.gnome.org/show_bug.cgi?id=757598

8 years agovaapivideocontext: refactor gst_vaapi_video_context_prepare()
Víctor Manuel Jáquez Leal [Wed, 4 Nov 2015 18:02:34 +0000 (19:02 +0100)]
vaapivideocontext: refactor gst_vaapi_video_context_prepare()

First, refactorized run_context_query() into _gst_context_run_query(), adding
a new parameter: the pad direction, in order to simplify the code.

Second, added a new helper function: _gst_context_query(), which is a generic
context query function.  It isolates the operation of running the query and
sets the context if found, also it enhances the logs.

_gst_context_query() is similar to the one used in GstGL. Perhaps, in the
future this helper function will be merged into the core libraries of
GStreamer.

Finally, gst_vaapi_video_context_prepare() was rewritten to use
_gst_context_query().

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757598

8 years agovaapivideocontext: refactor context category debug
Víctor Manuel Jáquez Leal [Fri, 30 Oct 2015 10:18:47 +0000 (11:18 +0100)]
vaapivideocontext: refactor context category debug

Refactor the extraction GST_CAT_CONTEXT logging using a only once
initializator, so we could get the debug category from different code
paths, safely.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757598

8 years agogstvaapivideocontext: fix indentation
Víctor Manuel Jáquez Leal [Fri, 23 Oct 2015 09:17:01 +0000 (11:17 +0200)]
gstvaapivideocontext: fix indentation

gst-indent does not handle correctly some expression like function
declaration with attributes, breaking the following expressions.

This patch makes gst-indent to ignore the attributed function
declartion so the followed function definition is not mangled, such
as happened in commit b4154a

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757598

8 years agoplugin: chain up set_context() vmethod
Víctor Manuel Jáquez Leal [Mon, 2 Nov 2015 15:48:27 +0000 (16:48 +0100)]
plugin: chain up set_context() vmethod

Since Gstreamer 1.7, set_context() vmethod needs to be chained up with
the parent class in order to broadcast all its contexts when the element
is added into a bin:

http://cgit.freedesktop.org/gstreamer/gstreamer/commit/?id=d5ded1588920c4471eefe055d09095d9e5e989b5

There is no need to guard the call, because before GStreamer 1.7, the
set_context() vmethod was NULL in the element class, hence the conditional
call make it safe.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757598

8 years agotests: simple-encoder: remove dead code
Víctor Manuel Jáquez Leal [Fri, 6 Nov 2015 09:20:34 +0000 (10:20 +0100)]
tests: simple-encoder: remove dead code

The caps creation for codec state configuration is not used. Let's remove it.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
8 years agovaapidecodebin: fix a leaked display instance
Víctor Manuel Jáquez Leal [Mon, 2 Nov 2015 18:05:07 +0000 (19:05 +0100)]
vaapidecodebin: fix a leaked display instance

The display returned by gst_vaapi_video_context_get_display() increments the
references. Thus, we have to unref the returned display.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757595

8 years agolibs: remove unneeded headers
Víctor Manuel Jáquez Leal [Wed, 4 Nov 2015 15:50:44 +0000 (16:50 +0100)]
libs: remove unneeded headers

Since gstvaapidisplay_glx.h do not expose gl.h/glx.h structures, it is not
required to include them in the header. It is not also required to include
them in gstvaapidisplay_glx.c, since gstvaapiutils_glx.h includes them and
exposes their structures (e.g. GLXPixmap).

Nonetheless, glext.h neither glxext.h are required to include, they are
already included conditionally by gl.h and glx.h, respectively.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757577

8 years agocodecparsers: Update to gst-vaapi-branch 0ea6792
Sreerenj Balachandran [Fri, 6 Nov 2015 17:18:54 +0000 (19:18 +0200)]
codecparsers: Update to gst-vaapi-branch 0ea6792

0ea6792: codecparsers: vp9: Add header comments
347ffc7: codecparsers: vp9: Use g_slice_free() for releasing memory allocated from the slice allocator

8 years agoVP9: plugins: Add VP9 decoder
Sreerenj Balachandran [Fri, 6 Nov 2015 13:19:38 +0000 (15:19 +0200)]
VP9: plugins: Add VP9 decoder

8 years agoVP9: libgstvaapi: Add VP9 decoder
Sreerenj Balachandran [Fri, 6 Nov 2015 13:12:51 +0000 (15:12 +0200)]
VP9: libgstvaapi: Add VP9 decoder

8 years agoVP9: gstvaapiprofile: Add profile definitions
Sreerenj Balachandran [Fri, 6 Nov 2015 12:57:00 +0000 (14:57 +0200)]
VP9: gstvaapiprofile: Add profile definitions

8 years agoVP9: build: Check availability of vp9 decoder APIs
Sreerenj Balachandran [Fri, 6 Nov 2015 12:39:22 +0000 (14:39 +0200)]
VP9: build: Check availability of vp9 decoder APIs

8 years agoVP9: Allow building vp9 codecparser internally
Sreerenj Balachandran [Fri, 6 Nov 2015 12:24:08 +0000 (14:24 +0200)]
VP9: Allow building vp9 codecparser internally

8 years agocodecparsers: Update to gst-vaapi-branch commit ac5dc1a
Sreerenj Balachandran [Fri, 6 Nov 2015 10:38:46 +0000 (12:38 +0200)]
codecparsers: Update to gst-vaapi-branch commit ac5dc1a

ac5dc1a: codecparsers: vp9: Add vp9 codec parser
e7d9217: codecparser: h264: initialize parsing structures
403d400: codecparser: h265: initialize parsing structures

8 years agoconfigure.ac: don't use an undefined variable
Víctor Manuel Jáquez Leal [Wed, 4 Nov 2015 14:37:34 +0000 (15:37 +0100)]
configure.ac: don't use an undefined variable

If the environment lacks of gstreamer development packages, this error will
be reported to the user: "gstreamer- was not found"

This is because we are using an undefined variable in the printed message. The
fix simple changes the variable for the hard-coded string "1.0".

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=757283

8 years agovaapidecode: relax guards for memory:VASurface capsfeature
Víctor Manuel Jáquez Leal [Fri, 16 Oct 2015 13:55:40 +0000 (15:55 +0200)]
vaapidecode: relax guards for memory:VASurface capsfeature

Though caps features are supported since GStreamer 1.2, there are some
issues with the features caps negotiation in that version. Nonetheless,
those issues are fixed in GStreamer 1.4. So, the memoy:VASurface caps
feature negotiation is relaxed for GStreamer 1.4.

The guard is the same as in vaapisink's caps template.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=756686

8 years agovaapidecode: decide allocation doesn't update srccaps
Víctor Manuel Jáquez Leal [Thu, 15 Oct 2015 16:18:36 +0000 (18:18 +0200)]
vaapidecode: decide allocation doesn't update srccaps

The received caps query will bring the already negotiated caps, so they are
not expected to change.

This patch removes this verification which is dead code path.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=756686

8 years agovaapidecode: use caps to check the features
Víctor Manuel Jáquez Leal [Wed, 14 Oct 2015 18:30:30 +0000 (20:30 +0200)]
vaapidecode: use caps to check the features

Instead of calling gst_vaapi_find_preferred_caps_feature(), which is
expensive, we check the caps from the allocation query, to check the
negotiated feature.

In order to do this verification a new utility function has been implemented:
gst_vaapi_caps_feature_contains().

As this new function shared its logic with gst_caps_has_vaapi_surface(), both
have been refactorized.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=756686

8 years agovaapidecode: set format before decide allocation
Víctor Manuel Jáquez Leal [Wed, 14 Oct 2015 18:22:43 +0000 (20:22 +0200)]
vaapidecode: set format before decide allocation

There is a regression from commit 3d8e5e. It was expected the buffer pool
allocation occur before the caps negotiation, but it is not.

This patch fixes this regression: the caps negotiation is done regardless the
allocation query from downstream.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=756686

8 years agobuild: check for patch and fix yasm check
Lim Siew Hoon [Fri, 16 Oct 2015 12:21:50 +0000 (20:21 +0800)]
build: check for patch and fix yasm check

Add configure checking for GNU patch tools and fixed configure
checking YASM to correct sequence.

Signed-off-by: Lim Siew Hoon <siew.hoon.lim@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=756690

8 years agobuild: Remove disable-md5 option for libvpx build
Sreerenj Balachandran [Thu, 15 Oct 2015 16:20:21 +0000 (19:20 +0300)]
build: Remove disable-md5 option for libvpx build

The configure option --disable-md5 was provided in libvpx-1.3.0 which
has been removed in 1.4.0.

8 years agolibvpx: Update the submodule to libvpx-1.4.0
Sreerenj Balachandran [Thu, 15 Oct 2015 16:00:26 +0000 (19:00 +0300)]
libvpx: Update the submodule to libvpx-1.4.0

libvpx git commit: c74bf6d889992c3cabe017ec353ca85c323107cd

8 years agoconfigure: mark support for GStreamer 1.2 as obsolete.
Sreerenj Balachandran [Thu, 15 Oct 2015 07:59:08 +0000 (10:59 +0300)]
configure: mark support for GStreamer 1.2 as obsolete.

Support for GStreamer 1.2 is obsolete. i.e. it is no longer supported.
Our goal is to support the last two stable versions of GStreamer which
are 1.4 and 1.6 at the moment.
We still keep the 1.2 specific codes until the next gstreamer-vaapi-0.7
release and will get rid of those in 0.8.

8 years agovaapidecode: Fix buffer copy assertion
Sreerenj Balachandran [Mon, 12 Oct 2015 11:13:03 +0000 (14:13 +0300)]
vaapidecode: Fix buffer copy assertion

Don't try to copy the NULL buffer-codec_data.

8 years agobuild: allow builds against GStreamer 1.7.x
Víctor Manuel Jáquez Leal [Mon, 28 Sep 2015 12:57:33 +0000 (14:57 +0200)]
build: allow builds against GStreamer 1.7.x

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
8 years agogstcompat: add gst_buffer_copy_deep() if gst < 1.5
Víctor Manuel Jáquez Leal [Wed, 23 Sep 2015 14:02:46 +0000 (16:02 +0200)]
gstcompat: add gst_buffer_copy_deep() if gst < 1.5

gst_buffer_copy_deep() was added in GStreamer 1.5. If want to use it we should
add an implementation if gstreamer-vaapi is linked to previous versions.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
8 years agovaapidecode: simplify copy of GstVideoCodecState
Víctor Manuel Jáquez Leal [Wed, 23 Sep 2015 10:13:41 +0000 (12:13 +0200)]
vaapidecode: simplify copy of GstVideoCodecState

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
8 years agopatches/videoparsers: h265parser: more API fences
Víctor Manuel Jáquez Leal [Mon, 14 Sep 2015 17:21:08 +0000 (19:21 +0200)]
patches/videoparsers: h265parser: more API fences

Add more API fences according with its version and refresh the patch.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=754845

8 years agopatches/videoparsers: h265parser: rename patch keeping number
Víctor Manuel Jáquez Leal [Mon, 14 Sep 2015 17:19:56 +0000 (19:19 +0200)]
patches/videoparsers: h265parser: rename patch keeping number

Refresh the patch and rename it in order to keep the patch number.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=754845

8 years agopatches/videoparsers: h264parser: more API fences and refresh
Víctor Manuel Jáquez Leal [Mon, 14 Sep 2015 17:18:33 +0000 (19:18 +0200)]
patches/videoparsers: h264parser: more API fences and refresh

Add more API fences according with its version and refresh the patch.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=754845

8 years agopatches/videoparsers: h264parser: fix description and refresh
Víctor Manuel Jáquez Leal [Mon, 14 Sep 2015 17:16:51 +0000 (19:16 +0200)]
patches/videoparsers: h264parser: fix description and refresh

Fix a typo in the patch description and refresh it in order to avoid the
creation of .orig files and break the distcheck target.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=754845

8 years agopatches/videoparsers: h264parser: refresh patches
Víctor Manuel Jáquez Leal [Mon, 14 Sep 2015 17:15:18 +0000 (19:15 +0200)]
patches/videoparsers: h264parser: refresh patches

In order to avoid the creation of .orig files and break the distcheck target.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=754845

8 years agobuild: link libgstvaapi_parse against codec parser
Víctor Manuel Jáquez Leal [Tue, 15 Sep 2015 14:53:31 +0000 (16:53 +0200)]
build: link libgstvaapi_parse against codec parser

GST_CODEC_PARSER_* variables are defined if builtin codec parsers are disabled
when running configure.

Right now, libgstcodecparsers links only to libgstvaapi, but libgstvaapi_parse
need it if builtin codec parsers are disabled.

This patch adds GST_CODEC_PARSER_* variables to libgstvaapi_parse
compilation. If builtin codec parsers are enable, this variable is null, so it
should work using libgstvaapi, as normal.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=754845

8 years agobuild: verify for H264 MVC and H265 SPS
Víctor Manuel Jáquez Leal [Fri, 11 Sep 2015 14:35:30 +0000 (16:35 +0200)]
build: verify for H264 MVC and H265 SPS

Currently the H264 and H265 parsers look for MVC and SPS respectively, and
the required symbols for those were added in GStreamer 1.5

If we try to compile in GStreamer < 1.4, without enabling the builtin codec
parsers, the compilation fails, because the lack of those symbols.

This patch verifies if the installed H264 and H265 parsers have those symbols. If
they do not, the specific built in codec parsers are enabled and used.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=754845

8 years agodecoder: h264: initialize PPS's slice_group_id
Víctor Manuel Jáquez Leal [Fri, 11 Sep 2015 14:49:16 +0000 (16:49 +0200)]
decoder: h264: initialize PPS's slice_group_id

When the GstVaapiParserInfoH264 is allocated, the memory is not initialized,
so it contains random data.

When gst_h264_parser_parse_pps() fails, the PPS structure keeps slice_group_id
pointer uninitialized, leading to a segmentation fault when the memory is
freed.

This patch prevents this by initializing the slice_group_id before the PPS
parsing.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=754845

8 years agovaapidecode: proper numerator and denominator for forced latency framerate
Mark Nauwelaerts [Tue, 15 Sep 2015 08:01:29 +0000 (11:01 +0300)]
vaapidecode: proper numerator and denominator for forced latency framerate

https://bugzilla.gnome.org/show_bug.cgi?id=755040

8 years agocodecparsers: Update to gst-vaapi-branch commit f9e284b
Sreerenj Balachandran [Fri, 11 Sep 2015 17:51:42 +0000 (20:51 +0300)]
codecparsers: Update to gst-vaapi-branch commit f9e284b

dae1a84: h264parse/h265parse: Fix negotiation crash
45a9f8a: codecparsers: h265 : Fix default scaling list values
28eaaf5: codecparsers: h265: Fix the selection of Active Ref Pic Set

Signed-off-by: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
8 years agodecoder: hevc: Don't flush dpb for EOS/EOB nal
Sreerenj Balachandran [Fri, 4 Sep 2015 19:19:55 +0000 (22:19 +0300)]
decoder: hevc: Don't flush dpb for EOS/EOB nal

Explicit flushing of dpb for EOS and EOB nal decoding is wrong,
the dpb_add() itself will handle the flusing(if needed) of dpb
for end of sequence and end of bitstream.

https://bugzilla.gnome.org/show_bug.cgi?id=754010

8 years agodecoder: hevc: Fix the dpb_add() based on C.5.2.3
Sreerenj Balachandran [Fri, 4 Sep 2015 19:11:10 +0000 (22:11 +0300)]
decoder: hevc: Fix the dpb_add() based on C.5.2.3

Follow the spec as it is in C.5.2.3, add the decoded frame to dpb
just after the PicLatencyCnt setting of existing dpb frames.

https://bugzilla.gnome.org/show_bug.cgi?id=754010

8 years agodecoder: hevc: Fix the picture addition in dpb() based on spec H265 v3 (04/2015)
Sreerenj Balachandran [Fri, 4 Sep 2015 19:02:55 +0000 (22:02 +0300)]
decoder: hevc: Fix the picture addition in dpb() based on spec H265 v3 (04/2015)

This fix is based on the V3 vesion of spec which was missing in older versions.

When the current picture has PicOutputFlag equal to 1, for each picture in the
DPB that is marked as "needed for output" and follows the current picture in output order,
the associated variable PicLatencyCount is set equal to PicLatencyCount + 1 (C.5.2.3).

https://bugzilla.gnome.org/show_bug.cgi?id=754010

8 years agodecoder: h265: Fix indentation
Sreerenj Balachandran [Fri, 4 Sep 2015 19:00:36 +0000 (22:00 +0300)]
decoder: h265: Fix indentation

8 years agomultiview: initial attempt at stereo/multiview support
Jan Schmidt [Fri, 12 Jun 2015 15:39:31 +0000 (01:39 +1000)]
multiview: initial attempt at stereo/multiview support

Add support for marking caps and buffers for multiview or
stereoscopic output.

https://bugzilla.gnome.org/show_bug.cgi?id=750835

8 years agodecoder: hevc: remove unused functions
Víctor Manuel Jáquez Leal [Fri, 28 Aug 2015 15:12:12 +0000 (17:12 +0200)]
decoder: hevc: remove unused functions

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=754250

8 years agovaapidecode: remove (another) unused variable
Víctor Manuel Jáquez Leal [Mon, 31 Aug 2015 11:11:54 +0000 (13:11 +0200)]
vaapidecode: remove (another) unused variable

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
8 years agovaapidecode: remove unused variable
Víctor Manuel Jáquez Leal [Fri, 28 Aug 2015 15:10:40 +0000 (17:10 +0200)]
vaapidecode: remove unused variable

Thus silence the compilation warnings.

8 years agovaapidecode: compilation fix
Víctor Manuel Jáquez Leal [Fri, 28 Aug 2015 14:06:08 +0000 (16:06 +0200)]
vaapidecode: compilation fix

gst_vaapi_decoder_state_changed() returns void. This patch fixes the
compilation where the toolchain uses restrictive flags as clang.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
8 years agovaapidecode: renegotiate if caps are not equal
Víctor Manuel Jáquez Leal [Fri, 28 Aug 2015 21:27:05 +0000 (00:27 +0300)]
vaapidecode: renegotiate if caps are not equal

The use of gst_caps_is_always_compatible() for this optimization may lead to
false positives. It is better to stick to gst_caps_is_strictly_equal() to know
if it is required a re-negotiation.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=750835

8 years agovaapidecode: Rework the re-negotiation code to handle multi resoultion videos
Sreerenj Balachandran [Fri, 28 Aug 2015 21:18:57 +0000 (00:18 +0300)]
vaapidecode: Rework the re-negotiation code to handle multi resoultion videos

Delaying the pool re-negotiation untill we push all decoded (and queued)
frames downstream. Otherwise for the multi-resolution videos, the
GstVideoVideoMemory will be having wrong resolution and which leads
to nasty behaviours, especially when using software renderers.

sample media file: RAP_B_Bossen_1.bin
case explained:
The first SPS Nal will report resoultion of 448x256 and having crop rectangles to
get the final resoultion 416x240.
Starting from 25 th frame, the resolution will change to 416x240. But parser
elements won't report this since the effective croped resolution is same in
both cases. Here the core libgstvaapi will detect this through it's internal
parsing and do all context/pool destory/reset stuffs. Also it will notify this
change to plugins in advance. But if the plugin try to do re-negotiaion of pool
immediately, this will not sync with the resolution of already decoded and queued
frames and which will lead to failure in gst_video_frame_map() in downstream(if we use the
software renderer). So we have to delay the pool renegotiation in vaapidecode,
untill we push all decoded frames downstream.

https://bugzilla.gnome.org/show_bug.cgi?id=753914

8 years agovaapidecode: Always keep a copy of input codec state
Sreerenj Balachandran [Fri, 28 Aug 2015 20:43:47 +0000 (23:43 +0300)]
vaapidecode: Always keep a copy of input codec state

Currently we are sharing the input GstVideoCodecState with
GstVaapiDecoder(gst-libs/gst/vaapi) by just doing ref and unref for
each caps change. This is troublesome in many cases, for eg: if
resoultion changes with in a singe stream. Because, when ever there
is a resolution change, GstVideoDecoder will first change the Codec_state->caps
fields with new resolution, but since we are using the same codecstate (ref)
in gstvaapidecode.c, the caps check for input caps change will always fail.

https://bugzilla.gnome.org/show_bug.cgi?id=753914

8 years agodecoder: hevc: Fix the scaling list scan order
Sreerenj Balachandran [Wed, 26 Aug 2015 04:25:03 +0000 (07:25 +0300)]
decoder: hevc: Fix the scaling list scan order

The default scan order of scaling lists are up-right-diagonal
as per hevc specification. Use the newly implemented
uprightdiagonal_to_raster conversion codecparser APIs to
get the the scaling_list values in raster order, which is
what the VA intel driver requires.

8 years agodecoder: hevc: sync with the codecparser changes
Sreerenj Balachandran [Wed, 26 Aug 2015 04:20:09 +0000 (07:20 +0300)]
decoder: hevc: sync with the codecparser changes

The Tile Scanning Conversion process (spec 6-3 and 6-4) is implemented
in codecparsers now. Remove the duplication from gstvaapidecoder_h265

8 years agopatches/Videoparsers: update patch to fix build with older GStreamer 1.2 stacks
Sreerenj Balachandran [Wed, 26 Aug 2015 04:04:22 +0000 (07:04 +0300)]
patches/Videoparsers: update patch to fix build with older GStreamer 1.2 stacks

8 years agocodecparsers: Update to gst-vaapi-branch commit 69550f1
Sreerenj Balachandran [Wed, 26 Aug 2015 03:57:36 +0000 (06:57 +0300)]
codecparsers: Update to gst-vaapi-branch commit 69550f1

c207c6d: codecparsers: h265: Fix tile row and column parsing
47074c5: codecparsers: h265: Add APIs for up-right-diagonal/raster scan conversion
cd28b18: codecparsers: h265: Fix the range of delta_chroma_log2_weight_denom
1746bbe: videoparsers: Use gst_base_parse_merge_tags()
2f0932b: h264parse: Clear SPS info after processing
f57d6b0: videoparsers: enable accept-template flag

8 years agodebian: add yasm as build dependency
Víctor Manuel Jáquez Leal [Tue, 25 Aug 2015 15:38:42 +0000 (15:38 +0000)]
debian: add yasm as build dependency

As the compilation of libvpx (for vp8 parser) is enabled by default,
yasm is required by default too.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
8 years agodebian: remove --with-gstreamer-api option
Lim Siew Hoon [Fri, 14 Aug 2015 11:21:04 +0000 (19:21 +0800)]
debian: remove --with-gstreamer-api option

It is no longer valid in gstreamer-vaapi.

Signed-off-by: Lim Siew Hoon <siew.hoon.lim@intel.com>
[removed unused GST_API_VERSION variable]
Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
https://bugzilla.gnome.org/show_bug.cgi?id=753618

8 years agowayland: rename is_cancelled to sync_failed
Víctor Manuel Jáquez Leal [Mon, 24 Aug 2015 17:22:14 +0000 (19:22 +0200)]
wayland: rename is_cancelled to sync_failed

Since commit 065a18a3, the semantics of the variable is_cancelled did not make
sense. This commit renames this variable to sync_failed.

8 years agowayland: Don't return GST_FLOW_ERROR on flushing
Olivier Crete [Thu, 13 Aug 2015 19:12:44 +0000 (15:12 -0400)]
wayland: Don't return GST_FLOW_ERROR on flushing

Setting the sink to flushing causes gst_vaapi_window_wayland_sync() to
return FALSE which makes gst_vaapi_window_wayland_render() return
FALSE which ends up posting an ERROR message in
gst_vaapisink_show_frame_unlocked(). Solution is to just return TRUE
in the EBUSY case.

https://bugzilla.gnome.org/show_bug.cgi?id=753598