diff options
| author | Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org> | 2017-09-21 04:55:40 +0300 |
|---|---|---|
| committer | wm4 <nfxjfg@googlemail.com> | 2017-09-23 09:47:52 +0300 |
| commit | 1ef7752d64cbe9af2f27cc65aba3a2ca3831c128 (patch) | |
| tree | e92366f2b4d6fce0859341e6e7547c12a12b81f3 /Changelog | |
| parent | afe674734bbe71ef6c32f96a98f5f84d007eea1c (diff) | |
libavcodec: v4l2: add support for v4l2 mem2mem codecs
This patchset enhances Alexis Ballier's original patch and validates
it using Qualcomm's Venus hardware (driver recently landed upstream
[1]).
This has been tested on Qualcomm's DragonBoard 410c and 820c
Configure/make scripts have been validated on Ubuntu 10.04 and
16.04.
Tested decoders:
- h264
- h263
- mpeg4
- vp8
- vp9
- hevc
Tested encoders:
- h264
- h263
- mpeg4
Tested transcoding (concurrent encoding/decoding)
Some of the changes introduced:
- v4l2: code cleanup and abstractions added
- v4l2: follow the new encode/decode api.
- v4l2: fix display size for NV12 output pool.
- v4l2: handle EOS (EPIPE and draining)
- v4l2: vp8 and mpeg4 decoding and encoding.
- v4l2: hevc and vp9 support.
- v4l2: generate EOF on dequeue errors.
- v4l2: h264_mp4toannexb filtering.
- v4l2: fixed make install and fate issues.
- v4l2: codecs enabled/disabled depending on pixfmt defined
- v4l2: pass timebase/framerate to the context
- v4l2: runtime decoder reconfiguration.
- v4l2: add more frame information
- v4l2: free hardware resources on last reference being released
- v4l2: encoding: disable b-frames for upstreaming (patch required)
[1] https://lwn.net/Articles/697956/
System Level view:
v42l_m2m_enc/dec --> v4l2_m2m --> v4l2_context --> v4l2_buffers
Reviewed-by: Jorge Ramirez <jorge.ramirez-ortiz@linaro.org>
Reviewed-by: Alexis Ballier <aballier@gentoo.org>
Tested-by: Jorge Ramirez <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: wm4 <nfxjfg@googlemail.com>
Diffstat (limited to 'Changelog')
| -rw-r--r-- | Changelog | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -49,6 +49,7 @@ version <next>: - VP9 tile threading support - KMS screen grabber - CUDA thumbnail filter +- V4L2 mem2mem HW assisted codecs version 3.3: |