Add gst_vaapi_video_format_from_string() helper function to convert from
a video format string representation to a suitable GstVideoFormat. This
is just an alias to gst_video_format_from_string() for GStreamer 1.0.x
builds, and a proper iteration over all GstVideoFormat string representations
otherwise for earlier GStreamer 0.10.x builds.
Add helper functions to describe GstVaapiPoint and GstVaapiRectangle
structures as a standard GType. This could be useful to have them
described as a GValue later on.
Don't expose GstVaapiContext APIs and make them totally private to
libgstvaapi core library. That API would also tend to disappear in
a future revision. Likewise, don't expose GstVaapiDisplayCache API
but keep symbols visible so that the various render backends could
share a common display cache implementation in libgstvaapi.
Try to clean-up the documentation from any stale entry too.
Don't expose functions that reference a GstVaapiImageRaw, those are
meant to be internal only for implementing subpictures sync. Also add
a few private definitions to avoid functions calls for retrieving
image size and format information.
Use hardware accelerated XRenderComposite() function, from the RENDER
extension, to blit a pixmap to screen. Besides, this can also support
cropping and scaling.
Implement the new render-to-pixmap API. The only supported pixmap format
that will work is xRGB, with native byte ordering. Others might work but
they were not tested.
Add API to transfer VA urfaces to native pixmaps. Also add an API to
render a native pixmap, for completeness. In general, rendering to
pixmap would only be useful to certain VA drivers and use cases on
X11 display servers. e.g. GLX_EXT_texture_from_pixmap (TFP) handled
in an upper layer.
Mark dummy pictures as output already so that we don't try to submit
them to the upper layer since this is purely internal / temporary
picture for helping the decoder.
Once the picture was output, it is no longer necessary to keep an extra
reference to the underlying GstVideoCodecFrame. So, we can release it
earlier, and maybe subsequently release the associate surface proxy
earlier.
Fix new internal video format API, based on GstVideoFormat, to not
clobber with system symbols. So replace the gst_video_format_* prefix
with gst_vaapi_video_format_ prefix, even if the format type remains
GstVideoFormat.
Fix memory leak when processing interlaced pictures and that occurs
because the first field, represented as a GstVideoCodecFrame, never
gets released. i.e. when the picture is completed, this is generally
the case when the second field is successfully decoded, we need to
propagate the GstVideoCodecFrame of the first field to the original
GstVideoDecoder so that it could reclaim memory.
Otherwise, we keep accumulating the first fields into GstVideoDecoder
private frames list until the end-of-stream is reached. The frames
are eventually released there, but too late, i.e. too much memory
may have been consumed.
https://bugzilla.gnome.org/show_bug.cgi?id=701257
The queue of free objects to used was deallocated with g_queue_free_full().
However, this convenience function shall only be used if the original queue
was allocated with g_queue_new(). This caused memory corruption, eventually
leading to a crash.
The correct solution is to pair the g_queue_init() with the corresponding
g_queue_clear(), while iterating over all free objects to deallocate them.
Fix creation of surface pool objects to honour explicit pixel format
specification. If this operation is not supported, then fallback to
the older interface with chroma format.
If a VA surface was allocated with the chroma-format interface, try to
determine the underlying pixel format on gst_vaapi_surface_get_format(),
or return GST_VIDEO_FORMAT_ENCODED if this is not a supported operation.
Make it possible to create VA surfaces with a specific pixel format.
This is a new capability brought in by VA-API >= 0.34.0. If that
capability is not built-in (e.g. using VA-API < 0.34.0), then
gst_vaapi_surface_new_with_format() will return NULL.
Add gst_video_format_get_chroma_type() helper function to determine
the GstVaapiChromaType from a standard GStreamer video format. It is
possible to reconstruct that from GstVideoFormatInfo but it is much
simpler (and faster?) to use the local GstVideoFormatMap table.
Add new chroma formats available with VA-API >= 0.34.0. In particular,
this includes "RGB" chroma formats, and more YUV subsampled formats.
Also add a new from_GstVaapiChromaType() helper function to convert
libgstvaapi chroma type to VA chroma format.
Make gst_vaapi_image_pool_new() succeed, and thus returning a valid
image pool object, only if the underlying VA display does support the
requested VA image format.
Get rid of GstCaps to create surface/image pool, and use GstVideoInfo
structures instead. Those are smaller, and allows for streamlining
libgstvaapi more.
Add new video format mappings to VA image formats:
- YUV: packed YUV (YUY2, UYVY), grayscale (Y800) ;
- RGB: 32-bit RGB without alpha channel (XRGB, XBGR, RGBX, BGRX).
Fix debug message string with image format expressed with GstVideoFormat
instead of the obsolete format that turned out to be a fourcc.
This is a regression from git commit e61c5fc.
In particular, use gst_video_info_from_caps() helper function in VA image
for implementating gst_vaapi_image_get_buffer() [vaapidownload] and
gst_vaapi_image_update_from_buffer() [subpictures] in GStreamer 0.10 builds.
Drop GstVaapiImageFormat helpers since everything was moved to the new
GstVideoFormat based API. Don't bother with backwards compatibility and
just bump the library major version afterwards.
If the stream has a sequence_display_extenion, then attach the
display_horizontal/display_vertical dimension as the cropping
rectangle width/height to the GstVaapiPicture.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
If the Advanced profile has display_extension fields, then set the display
width/height dimension as cropping rectangle to the GstVaapiPicture.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
If the encoded stream has the frame_cropping_flag set, then associate
the cropping rectangle to GstVaapiPicture.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Make it possible associate an empty cropping rectangle to the surface
proxy, thus resetting any cropping rectangle that was previously set.
This allows for returning plain NULL when no cropping rectangle was
initially set up to the surface proxy, or if it was reset to defaults.
Add helper macros to retrieve the VA surface information like size
(width, height) or chroma type. This is a micro-optimization to avoid
useless function calls and NULL pointer re-checks in internal routines.
Add gst_vaapi_picture_set_crop_rect() helper function to copy the video
cropping information from raw bitstreams to each picture being decoded.
Also add helper function to surface proxy to propagate that information
outside of libgstvaapi. e.g. plug-in elements or standalone applications.
Signed-off-by: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
The MPEG-2 standard specifies (6.3.7) that all quantisation matrices
shall be reset to their default values when a Sequence_Header() is
decoded.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Break the circular references between GstVaapiContext and its children
GstVaapiSurfaces. Since the VA surfaces held an extra reference to the
context, which holds a reference to its VA surfaces, then none of those
were released.
How does this impact support for subpictures?
The only situation when the parent context needs to disappear is when
it is replaced with another one because of a resolution change in the
video stream for instance, or a normal destroy. In this case, it does
not really matter to apply subpictures to the peer surfaces since they
are either gone, or those that are left in the pipe can probably bear
a reinstantiation of the subpictures for it.
So, parent_context is set to NULL when the parent context is destroyed,
other VA surfaces can still get subpictures attached to them, individually
not as a whole. i.e. subpictures for surface S1 will be created from
active composition buffers and associated to S1, subpictures for S2 will
be created from the next active composition buffers, etc. We don't try
to cache the subpictures in those cases (pending surfaces until EOS
is reached, or pending surfaces until new surfaces matching new VA context
get to be used instead).
Make sure to create the GLX context once the window object has completed
its creation. Since gl_resize() relies on the newly created window size,
then we cannot simply overload the GstVaapiWindowClass::create() hook.
So, we just call into gst_vaapi_window_glx_ensure_context() once the
window object is created in the gst_vaapi_window_glx_new*() functions.
Make it possible to add extra an extra filter to most of display cache
lookup functions so that the GstVaapiDisplay instance can really match
a compatible and existing display by type, instead of relying on extra
string tags (e.g. "X11:" prefix, etc.).
Drop obsolete GST_VAAPI_IS_xxx() helper macros since we are no longer
deriving from GObject and so those were only checking for whether the
argument was NULL or not. This is now irrelevant, and even confusing
to some extent, because we no longer have type checking.
Note: this incurs more type checking (review) but the libgstvaapi is
rather small, so this is manageable.
Make GstVaapiID a gsize instead of guessing an underlying integer large
enough to hold all bits of a pointer. Also drop GST_VAAPI_ID_NONE since
this is plain zero and that it is no longer passed as varargs.
Port GstVaapiDecoder and GstVaapiDecoder{MPEG2,MPEG4,JPEG,H264,VC1} to
GstVaapiMiniObject. Add gst_vaapi_decoder_set_codec_state_changed_func()
helper function to let the user add a callback to a function triggered
whenever the codec state (e.g. caps) changes.
Port GstVaapiVideoPool, GstVaapiSurfacePool and GstVaapiImagePool to
GstVaapiMiniObject. Drop gst_vaapi_video_pool_get_caps() since it was
no longer used for a long time. Make object allocators static, i.e.
local to the shared library.
Drop support for user-defined data since this capability was not used
so far and GstVaapiMiniObject represents the smallest reference counted
object type. Add missing GST_VAAPI_MINI_OBJECT_CLASS() helper macro.
Besides, since GstVaapiMiniObject is a libgstvaapi internal object, it
is also possible to further simplify the layout of the object. i.e. merge
GstVaapiMiniObjectBase into GstVaapiMiniObject.
Propagate the picture size from the bitstream to the GstVaapiDecoder,
and subsequent user who installed a signal on notify::caps. This fixes
decoding of TS streams when the demuxer failed to extract the required
information.
Add gst_vaapi_decoder_get_frame_with_timeout() helper function that will
wait for a frame to be decoded, until the specified timeout in microseconds,
prior to returning to the caller.
This is a fix to performance regression from 851cc0, whereby the vaapidecode
loop executed on the srcpad task was called to often, thus starving all CPU
resources.
Rework GstVideoDecoder::handle_frame() to decode the current frame,
while possibly waiting for a free surface, and separately submit all
decoded frames from a task. This makes it possible to pop and render
decoded frames as soon as possible.
Add support for interlaced streams with GStreamer 1.0 too. Basically,
this enables vaapipostproc, though it is not auto-plugged yet. We also
make sure to reply to CAPS queries, and happily handle CAPS events.
Fix support for interlaced contents with GStreamer 0.10. In particular,
propagate GstVaapiSurfaceProxy frame flags to GstVideoCodecFrame flags
correctly.
This is a regression from commit 87e5717.
Rename GstVaapiDecoderFrame to GstVaapiParserFrame because this data
structure was only useful to parsing and a proper GstvaapiDecoderFrame
instance will be created instead.
Fix regression from 0.4-branch whereby GstVaapiSurfaceProxy no longer
held any information about the expected presentation timestamp, frame
duration or additional flags like interlaced or top-field-first.
Use new GstVaapiSurfaceProxy internal helper functions to propagate the
necessary GstVideoCodecFrame flags to vaapidecode (GStreamer 0.10).
Also make GstVaapiDecoder push_frame() operate similarly to drop_frame().
i.e. increase the GstVideoCodecFrame reference count in push_frame rather
than gst_vaapi_picture_output().
Add more attributes for raw decoding modes, i.e. directly through the
libgstvaapi helper library. In particular, add presentation timestamp,
duration and a couple of flags (interlaced, TFF, RFF, one-field).
Ensure libgstvaapi-glx*.so builds against libdl since dlsym() is used
to resolve glXGetProcAddress() from GLX libraries. This fix builds on
Fedora 17.
https://bugzilla.gnome.org/show_bug.cgi?id=698046
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Fix previous commit whereby gst_vaapi_decoder_get_codec_state() was
supposed to make GstVaapiDecoder own the return GstVideoCodecState
object. Only comment was updated, not the actual code.
Make gst_vaapi_decoder_get_codec_state() return the original codec state,
i.e. make the GstVaapiDecoder object own the return state so that callers
that want an extra reference to it would just gst_video_codec_state_ref()
it before usage. This aligns the behaviour with what we had before with
gst_vaapi_decoder_get_caps().
This is an ABI incompatible change, library major version was bumped from
previous release (0.5.2).
Fix the name of the plug-in element reported to gst-inspect-1.0. i.e. we
need an explicit definition for GStreamer >= 1.0 because the GST_PLUGIN_DEFINE
incorrectly uses #name for creating the plug-in name, instead of using macro
expansion (and let further expansion of macros) through e.g. G_STRINGIFY().
Fix make dist to allow build for either GStreamer 0.10 or 1.0. i.e. make
sure to include all source files in either case while generating source
tarballs.
Introduce a new configure option --with-gstreamer-api that determines
the desired GStreamer API to use. By default, GStreamer 1.0 is selected.
Also integrate more compatibility glue into gstcompat.h and plugins.
This integrates support for GStreamer API >= 1.0 only in the libgstvaapi
core decoding library. The changes are kept rather minimal here so that
the library retains as little dependency as possible on core GStreamer
functionality.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Drop the following functions that are now obsolete:
- gst_vaapi_context_get_surface()
- gst_vaapi_context_put_surface()
- gst_vaapi_context_find_surface_by_id()
- gst_vaapi_surface_proxy_new()
- gst_vaapi_surface_proxy_get_context()
- gst_vaapi_surface_proxy_set_context()
- gst_vaapi_surface_proxy_set_surface()
This is an API change.
Now that the surface pool is reference counted in the surface proxy wrapper,
we can safely ignore surface size checks in gst_vaapi_decoder_ensure_context().
Besides, this check is already performed in gst_vaapi_context_reset_full().
Introduce gst_vaapi_surface_proxy_new_from_pool() to allocate a new surface
proxy from the context surface pool. This change also makes sure to retain
the parent surface pool in the proxy.
Besides, it was also totally useless to attach/detach parent context to
VA surface each time we acquire/release it. Since the whole context owns
all associated VA surfaces, we can mark this as such only once and for all.
Move GstVaapiVideoMeta from core libgstvaapi decoding library to the
actual plugin elements. That's only useful there. Also inline reference
counting code from GstVaapiMiniObject.
Make sure libgstvaapi core decoding library doesn't include un-needed
dependencies. So, move out GstVaapiVideoConverterGLX to plugins instead.
Besides, even if the vaapisink element is not used, we are bound to have
a correctly populated GstSurfaceBuffer from vaapidecode.
Also clean-up the file along the way.
In decode_codec_data(), force initialization of format to zero so that
we can catch up cases where codec-data has neither "format" nor "wmvversion"
fields, thus making it possible to gracefully fail in this case.
Add a new GstVaapiDecoder::decode_codec_data() hook to actually decode
codec-data in the decoder sub-class. Provide a common shared helper
function to do the actual work and delegating further to the sub-class.
Drop GstVaapiDecoderUnit buffer field (GstBuffer) since it's totally
useless nowadays as creating sub-buffers doesn't bring any value. It
actually means more memory allocations. We can't do without that in
JPEG and MPEG-4:2 decoders.
Use gst_element_class_set_static_metadata() from GStreamer 1.0, which
basically is the same as gst_element_class_set_details_simple() in
GStreamer 0.10 context.
Use newer gst_video_overlay_rectangle_get_pixels_unscaled_raw() helper
function with GStreamer 0.10 compatible semantics, or that tries to
approach the current meaning. Basically, this is also just about moving
the helper to gstcompat.h.
