When running several vaapi elements at the concurrently, at
initialization, there is a race condition when extractin the avaible
formats for images and subpictures.
This patch add a lock when the those arrays are filled.
https://bugzilla.gnome.org/show_bug.cgi?id=797039
Low delay B frame provide the function of transforming
P frame into low delay B frame which frame type is B, but
only reference predictive frames. This can be used when P
frame unsupported. Especially for P and B both unsupported,
in this case, I and low delay B frame can be encoded in a
stream.
https://bugzilla.gnome.org/show_bug.cgi?id=796984
In some cases, the found_picture ended up being evicted and freed, which
would lead to a use after free when accessing picture->base.poc. In this
fix, we take a ref on the picture before calling dpb_evict.
https://bugzilla.gnome.org/show_bug.cgi?id=787124
Similarly to previous patch, we have no error concealment. As a side
effect, it's better to skip slices with missing references then passing
NULL pointers to the accelerator. Passing NULL pointer would lead to
major visual artifact, a behaviour that is likely undefined.
https://bugzilla.gnome.org/show_bug.cgi?id=787124
Usually in case of MVC decoding, dpb size is increasedi if subset sps.
That's why it resets context without this patch.
But for some media it doesn't increase dpb size. Even in this case we
should reset context to deal with MVC decoding.
Otherwise, it leads to assert.
https://bugzilla.gnome.org/show_bug.cgi?id=787124
If the unit could not be parsed, just skip this nal and keep parsing
what is left in the adapter. We need to flush the broken unit in the
decoder specific parser because the generic code does not know about
units boundary. This increases error resilliance.
Before this, the broken unit would stay in the adapter and EOS would be
returned. Which stopped the streaming. Just removing the EOS would have
lead to the adapter size growing indefinitely.
https://bugzilla.gnome.org/show_bug.cgi?id=796863
h264 log messages were logged in default category because a regression
in code. This patch renable the usage of vaapi logging category.
This regression was introduced in commit 7c365bdd.
This patch chains up failure to executing the modification process. The
end result is that we now fail decoding the slice if this process fails.
This avoid sending a corrupted state to the accelerator. In some special
cases, this could lead to unrecoverable errors.
https://bugzilla.gnome.org/show_bug.cgi?id=796832
gst_adapter_masked_scan_uint32_peek() asserts if size is 0. Don't
try and scan in that case. This fixes assertion that would some times
happen when the stream is corrupted.
https://bugzilla.gnome.org/show_bug.cgi?id=796832
This change is due a problem encoding JPEGs with Intel's
media-driver: green/black image when playback jpeg
This patch sets component identifier and quantization table
destination selector in frame header to support packing headers
by Intel's media-driver that does not accept packed header
in AP level.
https://bugzilla.gnome.org/show_bug.cgi?id=796705
On systems with an Nvidia card, this error is output each time
the registry is rebuilt, which happens pretty often when
using gst-build as a development environment.
https://bugzilla.gnome.org/show_bug.cgi?id=796663
The decoder was trying to detect earlier that a field was lost base
on guessing the parity order. This breaks in streams were the parity
order changes.
This patch reverts the field order prediction code added by commit
8dd93e9c8.
https://bugzilla.gnome.org/show_bug.cgi?id=796169
This ensure that we always have sentinels set in the reference
pictures arrays. The code wasn't unsafe, this simply improve the
tracing, so instead of printing 32 lines of zeros, va tracer
prints proper empty lists.
https://bugzilla.gnome.org/show_bug.cgi?id=796169
Gobjectification for GstVaapiDisplay was almost done by the commit 185da3d1.
But still something breaking GObject code convention remains, which is
calling gst_vaapi_display_new() in each decendants.
This patch replaces it with gst_vaapi_display_config(), defined in private
header.
https://bugzilla.gnome.org/show_bug.cgi?id=796470
The function name was gst_vaapi_display_create_unlocked(), nonetheless
it wasn't called unlocked. In order to keep the semantics this patch
renames the gst_vaapi_display_create_unlocked() as
gst_vaapi_display_create(), removing the previous function
gst_vaapi_display_create().
https://bugzilla.gnome.org/show_bug.cgi?id=796470
This is, practically, a revert of commit dcf135e2.
The parent logic is useful for the EGL display, which is a decorator
of the real windowing subsystem (X11 or Wayland). Thus it is avoided
calling vaInitialize() and vaTerminate() twice.
https://bugzilla.gnome.org/show_bug.cgi?id=795391
