When creating surfaces it is possible to pass to VA hints of its usage,
so the driver may do some optimizations.
This commit adds the handling of encoding/decoding hints.
In fact, gst_vaapi_create_test_display only test x11, wayland and
drm, no glx and egl entries. So if none of them is enabled, no
vaapi element can be detected.
The bug fixing, in commit 89f202ea, just considers the case when
surface's DMABuf is set through gst_buffer_pool_acquire_buffer(),
which is typically a decoder's behavior. But vaapipostproc doesn't
provide any surface when calling gst_buffer_pool_acquire_buffer(),
thus a surface is created when GstMemory is allocated.
If the surface proxy in buffer's meta is reset at
buffer_pool_reset_buffer(), that surface will be destroyed and it
won't be available anymore. But GstBuffers are cached in the buffer
pool and they are reused again, hence only those images are rendered
repeatedly.
Fixes: #232
I've just discovered iHD driver in Skylake doesn't have VideoProc
entry point, hence, in this platform, when vaapioverlay is tried to be
registered, critical warnings are raised because blend doesn't have a
display assigned.
As it is possible to have drivers without EntryPointVideoProc it is
required to handle it gracefully. This patch does that: only tries to
register vaapioverlay if the testing display has VPP and finalize()
vmethods, in filter and blend, bail out if display is NULL.
Commit 1168d6d5 showed up a regression: decode_sps() stores the unit's
parser info in sps array. If that parser info comes from decoding
codec data, that parser info will have an undefined state which might
break ensure_sps().
This patch sets the parser info state, at decoding codec data, with
the internal parser state. This is similar with h264 decoder apprach.
Original-patch-by: Xu Guangxin <guangxin.xu@intel.com>
VAProcColorStandardExplicit and associated VAProcColorProperties
(primaries, transfer and matrix) are not supported until
VA-API 1.2.0.
Use VAProcColorStandardNone instead of VAProcColorStandardExplicit
if VA-API < 1.2.0.
Fixes#231
Addresses #228 on iHD side. It seems iHD can't handle
VAProcColorStandardSRGB in all situations for vpp. But
it has no problem when we specify the sRGB parameters
via VAProcColorStandardExplicit parameters.
We've always sent VA_SOURCE_RANGE_UNKNOWN to the driver.
And, the [iHD] driver essentially computes the same color
range as gstreamer when we send VA_SOURCE_RANGE_UNKNOWN for
cases were gstreamer computes it automatically. But,
if the user wants to make it explicit, we should try
to honor it.
The default output colorimetry is persuaded by the output
resolution, which is too naive when doing VPP cropping
and/or scaling. For example, scaling 4K(sink)->1080P(src)
resolution (i.e. both YUV) results in bt2020(sink)->bt709(src)
colorimetry selection and some drivers don't support that
mode in vpp.
Thus, if output (i.e. downstream) does not specify a
colorimetry then we use the input resolution instead of the
output resolution to create the default colorimetry. Also,
note that we still use the output format since it may be a
different color space than the input. As in the example
above, this will result in bt2020(sink)->bt2020(src)
colorimetry selection and all drivers (afaik) should support
that in vpp.
If colorimetry has been set by a capsfilter (e.g.
vaapipostproc ! video/x-raw,colorimetry=bt709) then
don't try to override it. Previously, the aforementioned
capsfilter will fail to negotiate if default colorimetry
is not the same as the capsfilter (e.g. 4K resolutions).
Some code can be optimized since only if the dmabuf allocator is set,
the internal flag of dmabuf is TRUE, thus there's no need to evaluate
the allocator address.
If the requested allocator in set_config() is not a VAAPI valid one,
reject the configuration, instead of lying and using a private one.
This patch superseeds !254 and !24
set_config() vmethod should fail gracefully, thus upstream could
negotiate another pool if possible.
Instead of sending error messages to the bus, let demote the level
to warning.
Instead of creating a new allocator when upstream requests a different
allocator, this patch tries to reuse the internal allocator if it was
already initializated.
If the stream changes, then either one will be unref and a new
allocator is created.
This mechanism comes from ffmpeg vaapi implementation, where they have
their own quirks.
A specific driver is identified by a substring present in the vendor
string. If that substring is found, a set of bitwise flags are store.
These flags can be accessed through the function
gst_vaapi_display_has_driver_quirks().
The purpose for this first quirks is to disable the put image try for
AMD Gallium driver (see [1]).
1. https://gitlab.freedesktop.org/gstreamer/gstreamer-vaapi/merge_requests/72
Validate if the meta returned by gst_buffer_get_vaapi_video_meta() in
the acquired buffer is not null.
This situation should be very "pathological", but still it is better
be safe since that meta might be used later to create a new dma
buffer.
gst_vaapi_video_buffer_pool_reset_buffer() is called when the sink
releases the last reference on an exported DMA buffer. This should
release the underlying surface proxy. To avoid releasing the wrong
surface due to a stale surface proxy reference in the buffer's
GstVaapiVideoMeta, always update the reference to the correct surface
in gst_vaapi_video_buffer_pool_acquire_buffer().
This commit tries to centralize the selection of vaCreateSurfaces
version, instead of having fallbacks everywhere.
These fallbacks are hacks, added because new drivers use the latest
version of vaCreateSurfaces (with surface attributes) [1], meanwhile
old drivers (or profiles as JPEG decoder in i965) might rather use the
old version.
In order to select which method, there's detected hack: each config
context has a list of valid formats, in the case of JPEG decoder the
list only contains "rare" 4:2:2 formats (ICM3, GRAY8) which aren't
handled correctly by the current gstreamer-vaapi code [2].
The hack consist in identify if the format list contains an arbitrary
preferred format (which is suposedly well supported by
gstreamer-vaapi, mostly NV12). If no prefered colour format is found,
the the old version of vaCreateSurfaces is used, and the surfaces wil
be mapped into a image with their own color format.
1. https://bugzilla.gnome.org/show_bug.cgi?id=797143
2. https://bugzilla.gnome.org/show_bug.cgi?id=797222
When baseline-as-constrained is set, the decoder will expose support
for baseline decoding and assume that the baseline content is
constrained-baseline. This can be handy to decode streams in hardware
that would otherwise not be possible to decode. A lot of baseline
content is in fact constrained.
