Round down the calculated, or supplied, bitrate (kbps) into a multiple
of the HRD bitrate scale factor. Use a bitrate scale factor of 64 so
that to have less losses in precision. Likewise, don't round up because
that could be a strict constraint imposed by the user.
Fix the level calculation involving bitrate limits. Since we are
targetting NAL HRD conformance, the check against MaxBR from the
Table A-1 limits shall involve cpbBrNalFactor depending on the
active profile.
Submit sequence parameter buffers only once, or when the bitstream
was reconfigured in a way that requires such. Always submit packed
sequence parameter buffers at I-frame period, if the VA driver needs
those.
https://bugzilla.gnome.org/show_bug.cgi?id=722737
Make sure to submit the packed headers only if the underlying VA driver
requires those. Currently, only handle packed sequence and picture
headers.
https://bugzilla.gnome.org/show_bug.cgi?id=722737
The VAEncSequenceParameterBuffer.ip_period value reprents the distance
between the I-frame and the next P-frame. So, this also accounts for
any additional B-frame in the middle of it.
This fixes rate control heuristics for certain VA drivers.
https://bugzilla.gnome.org/show_bug.cgi?id=722735
Fix level characterisation when the bitrate is automatically computed
from the active coding tools. i.e. ensure the bitrate once the profile
is completely characterized but before the level calculation process.
Document and rename a few functions here and there. Drop code that
caps num_bframes variable in reset_properties() since they shall
have been checked beforehand, during properties initialization.
Clean-up GstBitWriter related utility functions and simplify notations.
While we are at it, also make bitstream writing more robust should an
overflow occur. We could later optimize for writing headers capped to
their maximum possible size by using the _unchecked() helper variants.
Drop private header since it was originally used to expose internals
to the plugin element. The proper interface is now the properties API,
thus rendering private headers totally obsolete.
This maps GstVideoColorimetry information in vaapisink's sinkpad caps
to GST_VAAPI_COLOR_STANDARD_* flags, if per-buffer information was not
available.
https://bugzilla.gnome.org/show_bug.cgi?id=722255
[factored out code, added SMPTE240M, handle per-buffer flags]
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Add support for hue, saturation, brightness and constrat adjustments.
Also fix cap info local copy to match the really expected cap subtype
of interest.
https://bugzilla.gnome.org/show_bug.cgi?id=720376
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Fix copy/paste error when submitting the "sharpen" value to the
GstVaapiFilter instance.
https://bugzilla.gnome.org/show_bug.cgi?id=720375
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Fix the pluginsdir and includedir variables in the generated pkgconfig
(.pc) files. The location needs to be built with the PKG version in
mind instead of the API version.
While we are at it, also fix the PKG version for GStreamer >= 1.3.
https://bugzilla.gnome.org/show_bug.cgi?id=720820
[additional fixes for includedir and pkg requirements]
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
When gst_vaapisink_video_overlay_set_window_handle() is called early,
before the pipeline has been set to PLAYING, the display has not yet
been initialized and _PLUGIN_BASE_DISPLAY_TYPE() is not yet
up-to-date. For this reason the foreign XID is not attached.
Now _ensure_display() is called earlier.
https://bugzilla.gnome.org/show_bug.cgi?id=722244
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Fix vaapidecode to correctly report caps features downstream, when
a custom pipeline is built manually.
https://bugzilla.gnome.org/show_bug.cgi?id=719372
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Since vaapidecode provides buffer that can be mapped as regular memory,
those caps should be added to the template caps. That only applies to
GStreamer >= 1.2.
https://bugzilla.gnome.org/show_bug.cgi?id=720608
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
vaapidecode hangs when pipeline is stopped without any EOS, e.g. when
<Ctrl>+C is pressed, thus causing the srcpad task to keep running and
locked. This fixes a deadlock on state change from PAUSED to READY.
https://bugzilla.gnome.org/show_bug.cgi?id=720584
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
vaapiencode might hang when the pipeline is stopped without any EOS,
e.g. when <Ctrl>+C is pressed, thus causing the srcpad task to keep
running and locked. This fixes a possible deadlock on state change
from PAUSED to READY.
https://bugzilla.gnome.org/show_bug.cgi?id=720584
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Add gst_vaapi_video_format_new_template_caps_with_features() helper
function to add the supplied caps feature string on GStreamer >= 1.2.
Add gst_vaapi_find_preferred_caps_feature() helper function to discover
the "best" caps feature to use for the supplied pad. In practice, we
will always favor memory:VASurface first, then meta:GLTextureUploadMeta,
and finally the system memory caps.
https://bugzilla.gnome.org/show_bug.cgi?id=719372
The GLTextureUpload function is not in charge of doing the overlay
composition if any.
https://bugzilla.gnome.org/show_bug.cgi?id=721859
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Change the submission order of VA objects so that to make that process
more logical. i.e. submit sequence parameter first, if any; next the
packed headers associated to sequece, picture or slices; and finally
the actual picture and associated slices.
Various clean-ups to improve consistency and readability: rename some
variables, drop unused macro definitions, drop initialization of vars
that are zero-initialized from the base class, drop un-necessary casts,
allocate GPtrArrays with a destroy function.
Fix frame cropping rectangle calculation to handle horizontal resolutions
that don't match a multiple of 16 pixels, but also the vertical resolution
that was incorrectly computed for progressive sequences too.
https://bugzilla.gnome.org/show_bug.cgi?id=722089
For non "Constant-QP" modes, we could provide more reasonable heuristics
for the target bitrate. In general, 48 bits per macroblock with all the
useful coding tools enable looks safe enough. Then, this rate is raised
by +10% to +15% for each coding tool that is disabled.
https://bugzilla.gnome.org/show_bug.cgi?id=719699
Add support for "high-compression" tuning option. First, determine the
largest supported profile by the hardware. Next, check any target limit
set by the user. Then, enable each individual coding tool based on the
resulting profile_idc value to use.
https://bugzilla.gnome.org/show_bug.cgi?id=719696
Allow user to precise the largest profile to use for encoding due
to target decoder constraints. For instance, if CABAC entropy coding
mode is requested by "constrained-baseline" profile only is desired,
then an error is returned during codec configuration.
Also make sure that the suitable profile we derived actually matches
what the HW can cope with.
https://bugzilla.gnome.org/show_bug.cgi?id=719694
Refine the heuristic to determine the maximum size of a coded buffer
to account for the exact number of slices. set_context_info() is the
last step during codec reconfiguration, no additional change is done
afterwards, so re-using the num_slices field here is fine.
https://bugzilla.gnome.org/show_bug.cgi?id=719953
Automatically derive the minimum profile and level to be used for
encoding, based on the activated coding tools. The encoder will
be trying to generate a bitstream that has the best chances to be
decoded on most platforms by default.
Also change the default profile to "constrained-baseline" so that
to ensure maximum compatibility when the stream is decoded.
https://bugzilla.gnome.org/show_bug.cgi?id=719691
Fix lookup for a suitable HW profile, as to be used by the underlying
hardware, based on heuristics that lead to characterize the SW profile,
i.e. the one used by the SW level encoding logic.
Also fix constraint_set0_flag (A.2.1) and constraint_set1_flag (A.2.2)
as they should respectively match the baseline and main profile.
https://bugzilla.gnome.org/show_bug.cgi?id=719827
The libgstvaapi core encoders are meant to support raw bitstreams only.
Henceforth, we are always producing a stream in "byte-stream" format.
However, the "codec-data" buffer which holds SPS and PPS headers is
always available. The "lengthSizeMinusOne" field is always set to 3
so that in-place "byte-stream" format to "avc" format conversion could
be performed.
Various clean-ups to improve consistency and readability: rename some
variables, drop unused macro definitions, drop initialization of vars
that are zero-initialized from the base class, drop un-necessary casts.
Fix lookup for a suitable HW profile, as to be used by the underlying
hardware, based on heuristics that lead to characterize the SW profile,
i.e. the one used by the SW level encoding logic.
Automatically derive the minimum profile and level to be used for
encoding, based on the activated coding tools. Improve lookup for
the best suitable level with the new MPEG-2 helper functions.
Also change the default profile to "simple" so that to ensure maximum
compatibility when the stream is decoded.
https://bugzilla.gnome.org/show_bug.cgi?id=719703
Various clean-ups to improve consistency and readability: drop unused
macro definitions, drop initialization of vars that are zero-initialized
from the base class, drop un-necessary casts.
Add encoder "tune" option to override the default behaviour that is to
favor maximum decoder compatibility at the expense of lower compression
ratios.
Expected tuning options to be developed are:
- "high-compression": improve compression, target best-in-class decoders;
- "low-latency": tune for low-latency decoding;
- "low-power": tune for encoding in low power / resources conditions.
Only expose the exact static set of supported rate-control properties
to the upper layer. For instance, if the GstVaapiEncoderXXX class does
only support CQP rate control, then only add it the the exposed enum
type.
Add helper macros and functions to build a GType for an enum subset.
Add gst_vaapi_encoder_set_keyframe_period() interface to allow the
user control the maximum distance between two keyframes. This new
property can only be set prior to gst_vaapi_encoder_set_codec_state().
A value of zero for "keyframe-period" gets it re-evaluated to the
actual framerate during encoder reconfiguration.
Improve codec reconfiguration to be performed only through a single
function. That is, remove the _set_context_info() hook as subclass
should not alter the parent GstVaapiContextInfo itself. Besides, the
VA context is constructed only at the final stages of reconfigure().
Add interface to communicate the encoder resolution and related info
like framerate, interlaced vs. progressive, etc. This new interface
supersedes gst_vaapi_encoder_set_format() and doesn't use any GstCaps
but rather use GstVideoCodecState.
Note that gst_vaapi_encoder_set_codec_state() is also a synchronization
point for codec config. This means that the encoder is reconfigured
there to match the latest properties.
Don't try to destroy an encoder, in GstVideoEncoder::finish() handler,
if it was not created in the first place. Return "not-negotiated" error
since this means we did not even reach GstVideoEncoder::set_format(),
where the encoder could have been created.
This fixes a crash when the vaapiencode_* plug-in elements get deallocated
and that we failed to negotiate either pad.
https://bugzilla.gnome.org/show_bug.cgi?id=719704
