Added two modes(as properties) for reference picture selection:
ref-mode-0: AltRef and GoldRef pointing to the recent keyframe
and LastRef is pointing to the previous frame.
ref-mode-1: Previous frame (n) as LastRef , n-1 th frame as GoldRef
and n-2 th frame as AltRef
https://bugzilla.gnome.org/show_bug.cgi?id=766048
Since gstreamer-vaapi is coupled with gstreamer releases, there is no need to
keep compatibility definition.
This patch removes the definition of
GST_BUFFER_POOL_OPTION_VIDEO_GL_TEXTURE_UPLOAD_META since it is in
gst-plugins-base version 1.2.2
This is a helper function to improve the readability of
ensure_sinkpad_buffer_pool(). It makes clearer when the buffer pool needs to be
re-instantiated.
This buffer pool may still be processing buffers when a caps renegotiation is
done. This one-liner patch deactivates the pool to drain it before it
de-allocation.
Right now, the decoders create a buffer pool for their sink pad which is not
used at all, because the decoders have never proposed it to upstream.
This patch avoids the buffer pool instantiating when the element inherits from
the GstVideoDecoder class.
This patch is a bit of optimization, since the bufferpool configuration is get
when the pool is created. Hence, we only need to request it when the pool from
the allocation query is reused.
If the offered pool in decide_allocation() vmethod doesn't have the
VAAPI_VIDEO_META option, it is destroyed immediatly and the pointer cleared,
so it could be created later.
When validating the caps from bufferpool config, this patch distinguishes the
error from no caps received (NULL) from the invalid caps (cannot be converted
into GstVideoInfo structure).
Use GST_{ERROR,WARNING}_OBJECT instead of GST_{ERROR,WARNING}, thus the logs
will show the name of the vaapipluginbase instance that failed.
Also, the code-style is fixed, where some error labels need to be surrounded
by braces.
gst_video_info_set_format() and gst_video_info_from_caps() call, internally,
gst_video_info_init(), hence it is not required to call it before them. This
patch removes these spurious calls.
Instead of a dummy alloc() vmethod, the allocator instance set the flag
GST_ALLOCATOR_FLAG_CUSTOM_ALLOC, which is used by the framework to avoid call
gst_allocator_alloc() on the allocator.
This function helper make sense for GStreamer 1.2, but it is not helpful for
greater version since the validation is already done in the API implementation.
Thus, it is removed.
This is a workaround since vaapi-intel-driver doesn't have
support for B-frame encode when utilizing low-power-enc
hardware block.
Fixme :We should query the VAConfigAttribEncMaxRefFrames
instead of blindly disabling b-frame support and set b/p frame count,
buffer pool size etc based on the query result.
https://bugzilla.gnome.org/show_bug.cgi?id=766050
Added a new property "low-power-enc" for enabling low power
encoding mode. Certain encoding tools may not be available
with the VAEntrypointEncSliceLP.
https://bugzilla.gnome.org/show_bug.cgi?id=766050
Instead of using gst_video_info_to_caps () to generated the fixed src caps,
this patch enables the first step for caps negotiation with a possible
following caps filter.
_get_preferred_caps() will traverse the possible src caps looking for the one
wit the preferred feature and the preferred color format. Then the color
format, the frame size and the frame rate are fixated.
https://bugzilla.gnome.org/show_bug.cgi?id=758548
Instead of the allowed_srcpad_caps variable, this patch uses the othercaps
from fixate_caps() vmethod to find the preferred caps feature and color
format.
https://bugzilla.gnome.org/show_bug.cgi?id=758548
When running transform_caps() vmethod, returning the srcpad caps, the caps are
early restricted to the element properties set: width, height, format and
force keep aspect.
A new file was added gstvaapipostprocutil.{c,h} where the utilities functions
are stored.
https://bugzilla.gnome.org/show_bug.cgi?id=758548
Instead of #ifdef it should be used #if becasuse USE_GST_GL_HELPERS is always
defined in config.h, but it would be 0 or 1 depending on the configure output.
https://bugzilla.gnome.org/show_bug.cgi?id=765702
