* commit 'e4128c08d786eb5513578e8c6063671ba03226ab':
Revert "hevc: x86: Refactor IDCT macro declarations"
So apparently this was technically correct be reverted due to
authorship. Reverted as well in FFmpeg for now...
See http://lists.libav.org/pipermail/libav-devel/2016-October/079560.html
Merged-by: Clément Bœsch <u@pkh.me>
This supports retrieving the device from a provided hw_frames_ctx, and
automatically creating a hw_frames_ctx if hw_device_ctx is set.
The old API is not deprecated yet. The user can still use
av_vdpau_bind_context() (with or without setting hw_frames_ctx), or use
the API before that by allocating and setting hwaccel_context manually.
Cherry-picked from Libav commit 1a7ddba5.
(Adds missing APIchanges entry to the Libav version.)
Reviewed-by: Mark Thompson <sw@jkqxz.net>
This "reuses" the flags introduced for the av_vdpau_bind_context() API
function, and makes them available to all hwaccels. This does not affect
the current vdpau API, as av_vdpau_bind_context() should obviously
override the AVCodecContext.hwaccel_flags flags for the sake of
compatibility.
Cherry-picked from Libav commit 16a163b5.
Reviewed-by: Mark Thompson <sw@jkqxz.net>
libavcodec/vaapi.h:58:1: warning: attribute 'deprecated' is ignored, place it after "struct" to apply attribute to type declaration [-Wignored-attributes]
(cherry picked from commit ed6a891c36)
Signed-off-by: Mark Thompson <sw@jkqxz.net>
* commit 'a9ba59591ed509fb7e6decfde8da4cbfd4ddf4b8':
ac3dsp: Add some special-case handling for the C downmix function
Merged-by: Clément Bœsch <u@pkh.me>
Fixes: runtime error: shift exponent 255 is too large for 32-bit type 'unsigned int'
Fixes: 894/clusterfuzz-testcase-4841537823309824
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* commit '2caa93b813adc5dbb7771dfe615da826a2947d18':
mpegaudiodsp: Change type of array stride parameters to ptrdiff_t
Merged-by: James Almer <jamrial@gmail.com>
* commit '15b4f494fc6bddb8178fdb5aed18b420efc75e22':
mss*: Change type of array stride parameters to ptrdiff_t
Merged-by: James Almer <jamrial@gmail.com>
* commit 'a339e919cad1ab0125948f0dd9d49f6cb590db89':
ea: Change type of array stride parameters to ptrdiff_t
Merged-by: James Almer <jamrial@gmail.com>
* commit 'ba479f3daafc7e4359ec1212164569ebe59f0bb7':
hevc: Change type of array stride parameters to ptrdiff_t
Merged-by: James Almer <jamrial@gmail.com>
* commit 'e4a94d8b36c48d95a7d412c40d7b558422ff659c':
h264chroma: Change type of stride parameters to ptrdiff_t
Merged-by: James Almer <jamrial@gmail.com>
* commit '2ec9fa5ec60dcd10e1cb10d8b4e4437e634ea428':
idct: Change type of array stride parameters to ptrdiff_t
Merged-by: James Almer <jamrial@gmail.com>
Aliased compressed AAC bytes are almost certainly not meaningful SBR
data. In the wild this causes harsh artifacts switching HE-AAC streams
that don't have SBR headers aligned with segment boundaries.
Turning off SBR falls back to a default set of upsampling parameters
that can function as a sort of error concealment. This is consistent
with how the decoder handles other sorts of errors.
* commit 'de2ae3c1fae5a2eb539b9abd7bc2a9ca8c286ff0':
lavc: add clobber tests for the new encoding/decoding API
The merge only re-order what we already have.
Merged-by: Clément Bœsch <u@pkh.me>
It was done on a whim because of the FATE header check and was actually
meant to be removed before pushing.
Also, nobody in review spotted it.
Reviewed-by: wm4
libavcodec now automatically serializes decoding for hwaccels which
are not thread-safe. This means API users, which rely on the libavcodec
native software fallback mechanism, can now simply enable threading
without running into problems.
Certain hardware decoding APIs are not guaranteed to be thread-safe, so
having the user access decoded hardware surfaces while the decoder is
running in another thread can cause failures (this is mainly known to
happen with DXVA2).
For such hwaccels, only allow the decoding thread to run while the user
is inside a lavc decode call (avcodec_send_packet/receive_frame).
Merges Libav commit d4a91e65.
Signed-off-by: wm4 <nfxjfg@googlemail.com>
Tested-by: Michael Niedermayer <michael@niedermayer.cc>
This improves commit 59c7022740.
In ff_thread_report_progress(), the fast code path can load
progress[field] with the relaxed memory order, and the slow code path
can store progress[field] with the release memory order. These changes
are mainly intended to avoid confusion when one inspects the source code.
They are unlikely to have measurable performance improvement.
ff_thread_report_progress() and ff_thread_await_progress() form a pair.
ff_thread_await_progress() reads progress[field] with the acquire memory
order (in the fast code path). Therefore, one expects to see
ff_thread_report_progress() write progress[field] with the matching
release memory order.
In the fast code path in ff_thread_report_progress(), the atomic load of
progress[field] doesn't need the acquire memory order because the
calling thread is trying to make the data it just decoded visible to the
other threads, rather than trying to read the data decoded by other
threads.
In ff_thread_get_buffer(), initialize progress[0] and progress[1] using
atomic_init().
Signed-off-by: Wan-Teh Chang <wtc@google.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Merges Libav commit 343e2833.
Signed-off-by: wm4 <nfxjfg@googlemail.com>
