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${ noResults }
6 Commits (8c4443cbcfe7e681567ee203da4cb4aecdd25a12)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Maxime Jourdan
|
584ac1ad0b |
avcodec/v4l2_m2m_dec: fix dropped packets while decoding
* FFmpeg retrieves a packet from the bitstream * It attempts to get an input buffer (from its own list or by dequeuing one from the driver) * If no input buffer is found, the bitstream packet is dropped instead of scheduled for trying again later It's an issue that showed especially at high speeds (like using `-f null -` as output parameters). Signed-off-by: Aman Gupta <aman@tmm1.net> |
5 years ago |
Aman Gupta
|
c0c7946196 |
avcodec/v4l2_m2m: decouple v4l2_m2m helpers from AVCodecContext
This will allow re-use of the m2m backend with AVFilterContext Signed-off-by: Aman Gupta <aman@tmm1.net> |
5 years ago |
Michael Niedermayer
|
062bf56393 |
avcodec/v4l2_m2m: fix cant typo
Reviewed-by: Lou Logan <lou@lrcd.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> |
6 years ago |
Mark Thompson
|
a0c624e299 |
avcodec: v4l2_m2m: fix races around freeing data on close
Refcount all of the context information. This also fixes a potential segmentation fault when accessing freed memory (buffer returned after the codec has been closed). Tested-by: Jorge Ramirez-Ortiz <jorge.ramirez.ortiz@gmail.com> |
7 years ago |
James Almer
|
d1e7e4fbe2 |
avcodec/v4l2_m2m: add missing header inclusions
Should fix checkheaders on systems where v4l2_m2m is enabled. Signed-off-by: James Almer <jamrial@gmail.com> |
7 years ago |
Jorge Ramirez-Ortiz
|
1ef7752d64 |
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>
|
7 years ago |