For future GFX channel functions an image scaling function is required.
This moves the implementation from wayland client to core library
and adds support for the much faster SWScale library.
The spec doesn't require that FRAME_BEGIN, REGION, TILESET, and FRAME_END come all in one
chunk. This patch adds the necessary state saving.
A unitary test is also added.
The sound and microphone redirection channels (and in part TSMF)
did not properly decouple encoding/decoding from the backends used
to play/record sound.
Encapsulating encoding/decoding in rewritten freerdp_dsp_* functions
with variable backends, simplifying alsa/oss/pulse/... audio backends.
Implements the decoding of video streams using common H264 decoders. We also implement
a trivial feedback algorithm.
Sponsored by: Rangee GmbH (http://www.rangee.de)
Leverages libavcodec's hw decode support to provide VA-API based
hardware decoding. Depends on the local build of ffmpeg having hardware
VA-API support compiled in and the appropriate libva drivers and
libraries installed.
Since this comes via a Wire-To-Surface-2 PDU we don't have
any left/top/right/bottom destination values.
The current code has always dealt with zeros when updating the
invalid region which resulted in black rectangles.
The correct update region is determined during decompression.
Since not all H264 decoders support multiple YUV420 output
buffers process H264 decoding and YUV to RGB conversion
sequentially to avoid overriding the input data.
When copying image data consider formats that only differ on use
of alpha data equal. This allows using the optimized copy routine
instead of the slower color conversion routine. Fixes#3616
This PR contains following changes:
- Give rlgr encode/decode APIs a similar interface
- Make rlgr encode API accessible again
- Make it possible to exchange rlgr functions
- Make use of RLGR1/3 defines instead of 0/1 in decoding
