Gwenole Beauchesne [Wed, 6 Feb 2013 14:27:18 +0000 (15:27 +0100)]
NEWS: updates.
Gwenole Beauchesne [Wed, 6 Feb 2013 14:21:27 +0000 (15:21 +0100)]
codecparsers: update to gst-vaapi-branch commit 31b1c57.
8957fb7 mpeg2: add helpers to convert quantization matrices
07c4034 mpeg2: store quantization matrices in zigzag scan order
Gwenole Beauchesne [Thu, 31 Jan 2013 10:32:24 +0000 (11:32 +0100)]
tests: simple-decoder: fix build on older platforms.
Make simple-decoder build and execute correctly on older platforms,
and more precisely older versions of glib.
Gwenole Beauchesne [Thu, 31 Jan 2013 10:30:12 +0000 (11:30 +0100)]
glibcompat: add replacement for g_async_queue_timeout_pop().
g_async_queue_timeout_pop() appeared in glib 2.31.18. Implement it as
g_async_queue_timed_pop() with a GTimeVal as the final time to wait for
new data to arrive in the queue.
Gwenole Beauchesne [Thu, 31 Jan 2013 10:25:18 +0000 (11:25 +0100)]
glibcompat: add replacement for g_cond_wait().
Gwenole Beauchesne [Wed, 30 Jan 2013 17:38:38 +0000 (18:38 +0100)]
mpeg2: fix decoding of 4K videos.
Account for slice_vertical_position_extension when vertical_size > 2800.
Gwenole Beauchesne [Wed, 30 Jan 2013 17:54:13 +0000 (18:54 +0100)]
mpeg2: fix decoding of sequence_end().
There shall be only one place to call decode_current_picture(), and this
is in the end_frame() hook. The EOS unit is processed after end_frame()
so this means we cannot have a valid picture to decode/output at this
point.
Gwenole Beauchesne [Wed, 30 Jan 2013 14:10:06 +0000 (15:10 +0100)]
mpeg2: improve robustness when packets are missing.
Improve robustness when some expected packets where not received yet
or that were not correctly decoded. For example, don't try to decode
a picture if there was no valid sequence or picture headers.
Gwenole Beauchesne [Wed, 30 Jan 2013 17:58:01 +0000 (18:58 +0100)]
decoder: handle decode-only frames in raw API mode.
Fix gst_vaapi_decoder_get_surface() to only return frames with a valid
surface proxy, i.e. with a valid VA surface. This means that any frame
marked as decode-only is simply skipped.
Gwenole Beauchesne [Wed, 30 Jan 2013 15:33:48 +0000 (16:33 +0100)]
decoder: allow frames to be dropped.
If the decoder was not able to decode a frame because insufficient
information was available, e.g. missing sequence or picture header,
then allow the frame to be gracefully dropped without generating
any error.
It is also possible that a frame is not meant to be displayed but
only used as a reference, so dropping that frame is also a valid
operation since GstVideoDecoder base class has extra references to
that GstVideoCodecFrame that needs to be released.
Gwenole Beauchesne [Wed, 30 Jan 2013 15:26:07 +0000 (16:26 +0100)]
vaapidecode: handle decode-only frames.
Decode-only frames may not have a valid surface proxy. So, simply discard
them gracefully, i.e. don't create meta data information. GstVideoDecoder
base class will properly handle this case and won't try to push any buffer
to downstream elements.
Sreerenj Balachandran [Wed, 23 Jan 2013 22:49:17 +0000 (00:49 +0200)]
vaapidecode: add support for post-seek semantics reset.
Implement GstVideoDecoder::reset() as a destruction of the VA decoder
and the creation of a new VA decoder.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Gwenole Beauchesne [Wed, 30 Jan 2013 08:38:07 +0000 (09:38 +0100)]
Bump version for development.
Gwenole Beauchesne [Wed, 30 Jan 2013 08:37:38 +0000 (09:37 +0100)]
0.5.1.
Sreerenj Balachandran [Wed, 23 Jan 2013 22:48:26 +0000 (00:48 +0200)]
mpeg2: implement GstVaapiDecoder::flush() as a DPB flush.
Sreerenj Balachandran [Thu, 24 Jan 2013 15:34:43 +0000 (17:34 +0200)]
decoder: fix documentation for GstVaapiDecoderFrame.
Drop superfluous reference to prev_slice member.
Gwenole Beauchesne [Tue, 29 Jan 2013 15:18:13 +0000 (16:18 +0100)]
decoder: assume current frame is complete at end-of-stream.
Assume we got a complete frame when the end-of-stream is reached and that
the current codec frame contains at least one slice data unit.
Gwenole Beauchesne [Tue, 29 Jan 2013 13:14:45 +0000 (14:14 +0100)]
legal: fix year for some copyright notices (2013).
Gwenole Beauchesne [Tue, 29 Jan 2013 13:03:27 +0000 (14:03 +0100)]
legal: fix year for some copyright notices (2012).
Gwenole Beauchesne [Tue, 29 Jan 2013 13:00:04 +0000 (14:00 +0100)]
legal: add Intel copyright on modified files.
Gwenole Beauchesne [Tue, 29 Jan 2013 12:37:41 +0000 (13:37 +0100)]
NEWS: updates.
Gwenole Beauchesne [Mon, 28 Jan 2013 17:09:09 +0000 (18:09 +0100)]
wayland: use a local event queue to avoid lock contention.
This improves performance when rendering several surfaces from within
the same process. e.g. a tee of vaapidecode'd buffers to vaapisink.
Gwenole Beauchesne [Mon, 28 Jan 2013 16:28:58 +0000 (17:28 +0100)]
wayland: fix thread-safe issues.
The Wayland API is not fully thread-safe and client applications shall
perform locking themselves on key functions. Besides, make sure to
release the lock if the _render() function fails.
Gwenole Beauchesne [Mon, 28 Jan 2013 15:37:28 +0000 (16:37 +0100)]
wayland: really wait until the pending redraw completed.
Introduce gst_vaapi_window_wayland_sync() helper function to wait for
the completion of the redraw request. Use it in _render() function to
actually block until the previous draw request is completed.
Gwenole Beauchesne [Wed, 23 Jan 2013 09:10:35 +0000 (10:10 +0100)]
wayland: fix frame_redraw callback.
The redraw callback needs to be attached to the surface prior to the
commit. Otherwise, the callback notifies the next surface repaint,
which is not the desired behaviour. i.e. we want to be notified for
the surface we have just filled.
Another isse was the redraw_pending was reset before the actual completion
of the frame redraw callback function, thus causing concurrency issues.
e.g. the callback could have been called again, but with a NULL buffer.
Gwenole Beauchesne [Mon, 28 Jan 2013 13:45:28 +0000 (14:45 +0100)]
wayland: fix display sharing.
When the Wayland display is shared, we still have to create our own local
shell and compositor objects, since they are not propagated from the cache.
Likewise, we also need to determine the display size or vaapisink would
fail to account for the display aspect ratio, and will try to create a 0x0
window.
Gwenole Beauchesne [Thu, 24 Jan 2013 16:38:53 +0000 (17:38 +0100)]
codecparsers: update to gst-vaapi-branch commit 21a098e.
21a098e vc1: fix bitplanes decoding (DIFF6 or NORM6) [residual]
f8c836a vc1: fix bitplanes decoding (DIFF6 or NORM6)
Gwenole Beauchesne [Wed, 23 Jan 2013 15:38:24 +0000 (16:38 +0100)]
vc1: handle frames with multiple slices.
Gwenole Beauchesne [Wed, 23 Jan 2013 16:01:34 +0000 (17:01 +0100)]
codecparsers: update to gst-vaapi-branch commit 3fba492.
3fba492 vc1: add API to parse slice headers
Gwenole Beauchesne [Wed, 23 Jan 2013 10:11:25 +0000 (11:11 +0100)]
vc1: handle CLOSED_ENTRY.
When CLOSED_ENTRY == 0, and if the B pictures that follow an entry-point
lack a reference anchor picture, these B pictures shall be discarded.
https://bugs.freedesktop.org/show_bug.cgi?id=59505
Gwenole Beauchesne [Wed, 23 Jan 2013 09:25:52 +0000 (10:25 +0100)]
vc1: cope with latest codecparser changes.
Fix build with newer VC-1 codecparser where dqsbedge was renamed to
dqbedge, and now represents either DQSBEDGE or DQDBEDGE depending on
the actual value of DQPROFILE.
Gwenole Beauchesne [Wed, 23 Jan 2013 09:24:04 +0000 (10:24 +0100)]
codecparsers: update to gst-vaapi-branch commit 3d2c67c.
3d2c67c vc1: simplify GstVC1VopDquant structure
Gwenole Beauchesne [Tue, 22 Jan 2013 09:51:40 +0000 (10:51 +0100)]
codecparsers: update to gst-vaapi-branch commit 5d33da8.
5d33da8 vc1: fix bitplanes decoding
562bdc4 vc1: fix VOPDQUANT parser for DQUANT == 2
0b13d2b vc1: fix calculation of ALTPQUANT
ba88e63 vc1: fix parser for DQPROFILE in VOPDQUANT
Gwenole Beauchesne [Tue, 22 Jan 2013 14:47:09 +0000 (15:47 +0100)]
vc1: fix size of encapsulated BDU.
Fix size of encapsulated BDUs since GstVC1BDU.size actually represents
the size of the BDU data, starting from offset, i.e. after any start
code is parsed.
This fixes a buffer overflow during the unescaping process.
Wind Yuan [Fri, 11 Jan 2013 09:08:00 +0000 (17:08 +0800)]
vc1: fix decoding of WMV3 videos in AVI format.
The AVI demuxer (avidemux) does not set a proper "format" attribute
to the generated caps. So, try to recover the video codec format from
the "wmvversion" property instead.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Gwenole Beauchesne [Tue, 22 Jan 2013 12:28:13 +0000 (13:28 +0100)]
vc1: review and report errors accordingly.
Use GST_ERROR() to report real errors instead of hiding them into
GST_DEBUG().
Gwenole Beauchesne [Tue, 22 Jan 2013 12:50:39 +0000 (13:50 +0100)]
vc1: don't create GstBuffers for all decoder units.
Don't create temporary GstBuffers for all decoder units, even if they
are lightweight "sub-buffers", since it is not really necessary to keep
the buffer data around.
Gwenole Beauchesne [Tue, 22 Jan 2013 15:03:18 +0000 (16:03 +0100)]
vc1: implement flush() hook.
Make it a simple DPB flush.
Gwenole Beauchesne [Tue, 22 Jan 2013 12:44:32 +0000 (13:44 +0100)]
vc1: implement {start,end}_frame() hooks.
Implement GstVaapiDecoder.start_frame() and end_frame() semantics so
that to create new VA context earlier and submit VA pictures to the
HW for decoding as soon as possible. i.e. don't wait for the next
frame to start decoding the previous one.
Gwenole Beauchesne [Tue, 22 Jan 2013 08:30:04 +0000 (09:30 +0100)]
vc1: fix next POC for new sequence layers.
Fix next POC when a new sequence layer is reached. At this point, we
need to reset any previous reference picture, i.e. non B-frame.
Sreerenj Balachandran [Thu, 2 Aug 2012 14:15:26 +0000 (17:15 +0300)]
vc1: port to common GstVaapiDpb interface.
Use GstVaapiDpb interface instead of maintaining our own prev and next
picture pointers. While doing so, try to derive a sensible POC value.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Gwenole Beauchesne [Tue, 15 Jan 2013 16:10:56 +0000 (17:10 +0100)]
vc1: fix decode_sequence_end() to return success, not EOS.
Gwenole Beauchesne [Fri, 18 Jan 2013 16:00:18 +0000 (17:00 +0100)]
decoder: simplify gst_vaapi_decoder_get_surface().
Avoid extraenous branches, i.e. immediately return with success once we
have a decoded frame available.
Gwenole Beauchesne [Fri, 18 Jan 2013 15:56:15 +0000 (16:56 +0100)]
decoder: optimize and clean decode_step() up.
Avoid usage of goto. Simplify decode_step() process to first accumulate all
pending buffers into the GstAdapter, and then parse and decode units from
that input adapter. Stop the process once a frame is fully decoded or an
error occurred.
Gwenole Beauchesne [Fri, 18 Jan 2013 13:46:23 +0000 (14:46 +0100)]
display: move "vaapi" debug init to libgstvaapi_init_once().
Gwenole Beauchesne [Fri, 18 Jan 2013 13:17:34 +0000 (14:17 +0100)]
display: dump gstreamer-vaapi version for debugging purposes.
Gwenole Beauchesne [Fri, 18 Jan 2013 13:30:48 +0000 (14:30 +0100)]
tests: simple-decoder: fix build with built-in videoutils.
Fix build with built-in videoutils, i.e. when system GStreamer installation
does not know about GstVideoDecoder API.
Gwenole Beauchesne [Fri, 18 Jan 2013 09:35:44 +0000 (10:35 +0100)]
tests: simple-decoder: flush decoded frames at EOS.
Flush the remaining decoded frames when an end-of-stream is reached.
Gwenole Beauchesne [Fri, 18 Jan 2013 09:25:14 +0000 (10:25 +0100)]
tests: simple-decoder: drop use of GstVaapiVideoMeta.
Don't use GstVaapiVideoMeta since that object is not guaranteed to live
in libgstvaapi forever. Rather, that'd move to plugin elements at some
point.
Gwenole Beauchesne [Wed, 16 Jan 2013 12:53:43 +0000 (13:53 +0100)]
tests: simple-decoder: add benchmark mode.
Add --benchmark option to enable benchmark mode where rendering is not
synchronized with presentation timestamps of the decoded surfaces.
Gwenole Beauchesne [Wed, 16 Jan 2013 12:29:06 +0000 (13:29 +0100)]
tests: simple-decoder: honour framerate from the bitstream.
Try to honour the framerate from the bitstream, or cap the playback to
60 fps by default.
Gwenole Beauchesne [Tue, 15 Jan 2013 17:49:28 +0000 (18:49 +0100)]
tests: simple-decoder: set window size to the surface dimensions.
Set the window size to the decoded surface dimensions, if the user has
not requested the application to run in full-screen mode. Besides, no
effort is made to preserve aspect ratio or to center the video within
the mapped window.
Gwenole Beauchesne [Tue, 15 Jan 2013 16:33:18 +0000 (17:33 +0100)]
tests: add simple decoder application.
Add simple decoder application to show off decoding capabilities from
raw bitstreams, for debugging or performance evaluation purposes.
Gwenole Beauchesne [Tue, 15 Jan 2013 16:30:57 +0000 (17:30 +0100)]
tests: add codec helper utils.
Add helper functions to determine the codec type from a specific file
or utility functions to convert from codec type to GstCaps or from
codec name to codec type.
Gwenole Beauchesne [Tue, 15 Jan 2013 16:47:13 +0000 (17:47 +0100)]
tests: allow fullscreen mode.
Add new --fullscreen|-f option to create new windows in fullscreen mode.
Gwenole Beauchesne [Thu, 17 Jan 2013 17:35:58 +0000 (18:35 +0100)]
h264: implement GstVaapiDecoder::flush() as a DPB flush.
Gwenole Beauchesne [Thu, 17 Jan 2013 17:07:03 +0000 (18:07 +0100)]
h264: handle end-of-stream NALU.
Handle <end-of-stream> NAL unit to actually flush any pending picture
from the DPB.
Gwenole Beauchesne [Thu, 17 Jan 2013 17:22:49 +0000 (18:22 +0100)]
vaapidecode: handle EOS events.
Flush all decoded frames to downstream when EOS is received. This is
performed by implementing GstVideoDecoder::finish() hook.
Gwenole Beauchesne [Thu, 17 Jan 2013 17:19:14 +0000 (18:19 +0100)]
vaapidecode: split gvd_handle_frame() into decode/push frames.
Split GstVideoDecoder::handle_frame() implementation into two functions:
(i) one for decoding the provided GstVideoCodecFrame and (ii) another one
for purging all decoded frames and submit them downstream.
Gwenole Beauchesne [Thu, 17 Jan 2013 17:33:32 +0000 (18:33 +0100)]
decoder: add GstVaapiDecoder::flush() hook.
Gwenole Beauchesne [Tue, 15 Jan 2013 16:21:50 +0000 (17:21 +0100)]
decoder: fix check for end-of-stream in raw API mode.
Make sure to immediately return GST_VAAPI_DECODER_STATUS_END_OF_STREAM
if the end-of-stream was already reached at the previous iteration.
Gwenole Beauchesne [Tue, 15 Jan 2013 15:55:29 +0000 (16:55 +0100)]
decoder: make decode_step() return once the frame is decoded.
Make sure we always have a free surface left to use for decoding the
current frame. This means that decode_step() has to return once a frame
gets decoded. If the current adapter contains more buffers with valid
frames, they will get parsed and decoded on subsequent iterations.
Gwenole Beauchesne [Thu, 17 Jan 2013 14:47:17 +0000 (15:47 +0100)]
codecparsers: update to gst-vaapi-branch commit b47983a.
8840c2d h264: zero-initialize SPS VUI parameters
Gwenole Beauchesne [Tue, 15 Jan 2013 08:21:36 +0000 (09:21 +0100)]
Bump version for development.
Gwenole Beauchesne [Tue, 15 Jan 2013 08:21:08 +0000 (09:21 +0100)]
0.5.0.
Gwenole Beauchesne [Mon, 14 Jan 2013 10:48:58 +0000 (11:48 +0100)]
docs: expose new interfaces.
Gwenole Beauchesne [Mon, 14 Jan 2013 11:58:20 +0000 (12:58 +0100)]
NEWS: updates.
Gwenole Beauchesne [Mon, 14 Jan 2013 09:58:49 +0000 (10:58 +0100)]
dpb: cosmetics (clean-ups).
Gwenole Beauchesne [Mon, 14 Jan 2013 09:46:25 +0000 (10:46 +0100)]
dpb: port to GstVaapiMiniObject.
Gwenole Beauchesne [Mon, 14 Jan 2013 09:21:53 +0000 (10:21 +0100)]
dpb: drop GstVaapiDpb2 interface, keep only one class.
Keep only one DPB interface and rename gst_vaapi_dpb2_get_references()
to gst_vaapi_dpb_get_neighbours() so that to retrieve pictures in DPB
around the specified picture POC.
Sreerenj Balachandran [Thu, 2 Aug 2012 12:56:54 +0000 (15:56 +0300)]
dpb: rename GstVaapiDpbMpeg2 to GstVaapiDpb2.
Move GstVaapiDpbMpeg2 API to a more generic version that could also be
useful to other decoders that require 2 reference pictures, e.g. VC-1.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Gwenole Beauchesne [Fri, 11 Jan 2013 15:04:30 +0000 (16:04 +0100)]
Bump version for pre-release.
Gwenole Beauchesne [Fri, 11 Jan 2013 14:57:09 +0000 (15:57 +0100)]
NEWS: updates.
Holger Kaelberer [Fri, 20 Jul 2012 10:36:33 +0000 (12:36 +0200)]
overlay: fix build without advanced GstVideoOverlayFormatFlags.
Check for global-alpha support in GstVideoOverlayComposition API.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Gwenole Beauchesne [Fri, 4 Jan 2013 09:19:56 +0000 (10:19 +0100)]
tests: add support for global-alpha subpictures.
Add --global-alpha option to test-subpicture.
Gwenole Beauchesne [Thu, 10 Jan 2013 12:09:28 +0000 (13:09 +0100)]
tests: use GstVideoOverlayComposition API for subpicture test.
Gwenole Beauchesne [Thu, 10 Jan 2013 10:26:17 +0000 (11:26 +0100)]
tests: use common decoder helpers for subpicture test.
Use common decoder helpers for subpicture test, thus allowing to decode
sample images in an alternate format.
Gwenole Beauchesne [Thu, 10 Jan 2013 10:22:38 +0000 (11:22 +0100)]
tests: add decoder helpers.
Gwenole Beauchesne [Fri, 11 Jan 2013 14:19:45 +0000 (15:19 +0100)]
overlay: fix ordering of composition layers.
Make sure to maintain the association order of composition layers when
GstVideoOverlayRectangle objects are kept around (cached).
Holger Kaelberer [Tue, 15 May 2012 08:24:08 +0000 (10:24 +0200)]
overlay: fix support for global-alpha.
Fix support for global-alpha subpictures. The previous changes brought
the ability to check for GstVideoOverlayRectangle changes by comparing
the underlying pixel buffer pointers. If sequence number and pixel data
did not change, then this is an indication that only the global-alpha
value changed. Now, try to update the underlying VA subpicture global-alpha
value.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Gwenole Beauchesne [Fri, 11 Jan 2013 10:53:05 +0000 (11:53 +0100)]
overlay: detect render-rect changes.
Don't re-upload VA subpicture if only the render rectangle changed.
Rather deassociate the subpicture and re-associate it with the new
render rectangle.
Gwenole Beauchesne [Fri, 11 Jan 2013 10:12:26 +0000 (11:12 +0100)]
overlay: fix check for pixels buffer change.
A GstVideoOverlayRectangle is created whenever the underlying pixels data
change. However, when global-alpha is supported, it is possible to re-use
the same GstVideoOverlayRectangle but with a change to the global-alpha
value. This process causes a change of sequence number, so we can no longer
check for that.
Still, if sequence numbers did not change, then there was no change in
global-alpha either. So, we need a way to compare the underlying GstBuffer
pointers. There is no API to retrieve the original pixels buffer from
a GstVideoOverlayRectangle. So, we use the following heuristics:
1. Use gst_video_overlay_rectangle_get_pixels_unscaled_argb() with the same
format flags from which the GstVideoOverlayRectangle was created. This
will work if there was no prior consumer of the GstVideoOverlayRectangle
with alternate (non-"native") format flags.
2. In overlay_rectangle_has_changed_pixels(), we have to use the same
gst_video_overlay_rectangle_get_pixels_unscaled_argb() function but
with flags that match the subpicture. This is needed to cope with
platforms that don't support global-alpha in HW, so the gst-video
layer takes care of that and fixes this up with a possibly new
GstBuffer, and hence pixels data (or) in-place by caching the current
global-alpha value applied. So we have to determine the rectangle
was previously used, based on what previous flags were used to
retrieve the ARGB pixels buffer.
Gwenole Beauchesne [Thu, 10 Jan 2013 17:42:37 +0000 (18:42 +0100)]
overlay: optimize cache at the GstVideoOverlayRectangle level.
We previously assumed that an overlay composition changed if the number
of overlay rectangles in there actually changed, or that the rectangle
was updated, and thus its seqnum was also updated.
Now, we can cope with cases where the GstVideoOverlayComposition grew
by one or a few more overlay rectangles, and the initial overlay rectangles
are kept as is.
Gwenole Beauchesne [Thu, 10 Jan 2013 12:41:39 +0000 (13:41 +0100)]
overlay: simplify caching of GstVideoOverlayComposition objects.
Create the GPtrArray once in the _init() function and destroy it only
in the _finalize() function. Then use overlay_clear() to remove all
subpicture associations for intermediate updates, don't recreate the
GPtrArray.
Make GstVaapiOverlayRectangle a reference counted object. Also make
sure that overlay_rectangle_new() actually creates and associates the
VA subpicture.
Holger Kaelberer [Tue, 15 May 2012 08:24:08 +0000 (10:24 +0200)]
overlay: add support for global-alpha.
Handle global-alpha from GstVideoOverlayComposition API. Likewise,
the same code path could also work for premultiplied-alpha but this
was not tested.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Holger Kaelberer [Tue, 15 May 2012 08:24:08 +0000 (10:24 +0200)]
subpicture: add support for global-alpha.
Add the necessary helpers in GstVaapiDisplay to determine whether subpictures
with global alpha are supported or not. Also add accessors in GstVaapiSubpicture
to address this feature.
Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Gwenole Beauchesne [Fri, 4 Jan 2013 08:41:25 +0000 (09:41 +0100)]
subpicture: add premultiplied-alpha and global-alpha feature flags.
Add premultiplied-alpha and global-alpha feature flags, along with converters
between VA-API and gstreamer-vaapi definitions. Another round of helpers is
also necessary for GstVideoOverlayComposition API.
Gwenole Beauchesne [Thu, 3 Jan 2013 17:02:49 +0000 (18:02 +0100)]
display: allow image/subpicture formats with additional flags.
Introduce new GstVaapiFormatInfo to store the actual GstVaapiImageFormat
and any additional flags needed. Currently, all flags are set to zero.
Gwenole Beauchesne [Fri, 11 Jan 2013 12:34:45 +0000 (13:34 +0100)]
libs: fix build of submodule wrappers.
Make sure to build codecparsers/ and videoutils/ sources against the
newly generated headers when out-of-source builds are used.
Gwenole Beauchesne [Fri, 11 Jan 2013 13:11:39 +0000 (14:11 +0100)]
configure: fix checks for packages installed in non-standard roots.
Gwenole Beauchesne [Thu, 10 Jan 2013 09:12:25 +0000 (10:12 +0100)]
decoder: fix mini object implementation on 64-bit systems.
Use GPOINTER_TO_SIZE() instead of GPOINTER_TO_UINT() while manipulating
pointers. The latter is meant to be 32-bit only, not uintptr_t like size.
Only a gsize can hold all bits of a pointer.
Thanks to Ouping Zhang for spotting this error.
Gwenole Beauchesne [Wed, 9 Jan 2013 15:05:39 +0000 (16:05 +0100)]
mpeg2: optimize scan for the end of the frame.
Heuristic: if the second start-code is available, check whether that
one marks the start of a new frame because e.g. this is a sequence
or picture header. This doesn't save much, since we already cache the
results.
Gwenole Beauchesne [Wed, 9 Jan 2013 12:44:18 +0000 (13:44 +0100)]
mpeg2: optimize scan for start codes.
Accelerate scan for start codes by skipping up to 3 bytes per iteration.
A start code prefix is defined by the following bytes: 00 00 01. Thus,
for any group of 3 bytes (xx yy zz), we have the following possible cases:
1. If zz != 1, this cannot be a start code, then skip 3 bytes;
2. If yy != 0, this cannot be a start code, then skip 2 bytes;
3. If xx != 0 or zz != 1, this cannot be a start code, then skip 1 byte;
4. xx == 00, yy == 00, zz == 1, we have match!
This algorithm requires to peek bytes from the adapter. This increases the
amount of bytes copied to a temporary buffer, but this process is much faster
than scanning for all the bytes and using shift/masks. So, overall, this is
a win.
Gwenole Beauchesne [Tue, 8 Jan 2013 15:41:44 +0000 (16:41 +0100)]
mpeg2: drop useless gst_adapter_peek().
Drop useless gst_adapter_peek() since the returned buffer was not used
and this could incur superfluous memcpy().
Gwenole Beauchesne [Mon, 7 Jan 2013 15:07:38 +0000 (16:07 +0100)]
mpeg2: cosmetics: move parse_slice() down.
Gwenole Beauchesne [Mon, 7 Jan 2013 14:24:51 +0000 (15:24 +0100)]
mpeg2: avoid too many allocations of parser info objects.
Move parsing back to decoding step, but keep functions separate for now.
This is needed for future optimizations that may introduce some meta data
for parsed info attached to codec frames.
Gwenole Beauchesne [Mon, 7 Jan 2013 13:04:22 +0000 (14:04 +0100)]
decoder: decoder units are no longer dynamically allocated objects.
Gwenole Beauchesne [Mon, 7 Jan 2013 12:59:07 +0000 (13:59 +0100)]
decoder: optimize pre-allocation of decoder units.
Optimize pre-allocation of decoder units, thus avoiding un-necessary
memory reallocations. The heuristic used is that we could have around
one slice unit per macroblock line.
Gwenole Beauchesne [Mon, 7 Jan 2013 12:41:59 +0000 (13:41 +0100)]
decoder: use an array of units instead of a single-linked list.
Use a GArray to hold decoder units in a frame, instead of a single-linked
list. This makes 'append' calls faster, but not that much. At least, this
makes things clearer.
Gwenole Beauchesne [Mon, 7 Jan 2013 10:13:07 +0000 (11:13 +0100)]
decoder: refactor decoder unit API.
Allocate decoder unit earlier in the main parse() function and don't
delegate this task to derived classes. The ultimate purpose is to get
rid of dynamic allocation of decoder units.