Based on the x86 branchless get_cabac asm. get_cabac_noinline() gets
approximately 20% faster (no cycle counts available) compared to clang
from Xcode 5.1 beta5. More than 6% faster overall. A part of the overall
speedup might be explained by additional inlining of get_cabac().
Instead of using the demux function of libzvbi to split the packet to slices
(vbi lines), lets do it ourselves.
- eliminates the 1 frame delay between page input and output
- handles non-ascending line numbers more gracefully
- enables us to return error codes on some invalid packets instead of silently
ignoring them
Signed-off-by: Marton Balint <cus@passwd.hu>
The overread avoidance fix in cbddee1cca
broke the computation for the last row since it prevented the safe
reading from the height+1-th row.
CC: libav-stable@libav.org
Old Intel GPUs expect the reference frame index to the actual surface,
instead of the index into RefFrameList as specified by the spec.
This workaround should be set when using one of the "ClearVideo" decoder
devices.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The latest H.264 DXVA specification states that the index in this
structure should refer to a valid entry in the RefFrameList of the picture
parameter structure, and not to the actual surface index.
Fixes H.264 DXVA2 decoding on recent Intel GPUs (tested on Sandy and Ivy)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Some content requires an higher number of slices in order to
render properly.
Rise the number to 1024 and warn if ever it exceeds.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Also undo the changes to ra144enc.c from previous commits.
Should fix ticket #3429
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The SVQ3 decoder reuses large parts of the H.264 decoder so it
makes no sense to enable the former but not the latter.
Also drop unnecessary h263.o object from SVQ3 decoder object list.
c3390fd56c made use of the DSP function
but did not complement it with a call to emms, which is done here before
computations involving floats are performed.
Fixes ticket #3429, which affected MMX/MMXExt machines.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Should fix compilation failures with --disable-yasm on some compilers
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
With cli usage the decoder might have not set the colorspace during
encoder init, manual colorspace override might be needed in such
cases.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This applies commit 5de64bb3 (the source of the above commit message)
to libutvideoenc as well.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes out of array read
Fixes: 387713a12dc5cfa27fcb4178084ce1ea-asan_stack-oob_131176a_1182_cov_3861068719_CAINIT_C_SHARP_3.bit
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes out of array accesses
This should not affect any release
Fixes: 8ab69af9e5a7a7e20fe04cdd25c0d6e7-asan_heap-oob_e72b82_5505_cov_2278389485_g2m4.wmv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This reverts the changes 6467209836
and 68c3ed936a did to the SSE2 version,
which generated a hit of about 5 cycles.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Sandy Bridge Win64:
180 cycles on ff_synth_filter_inner_sse2
150 cycles on ff_synth_filter_inner_avx
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Avoid a division by 0 in ff_mpeg4_set_one_direct_mv.
Sample-Id: 00000168-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
The new function has the ability to allocate the structure, allowing it to grow
without needing major bumps
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This structure is used in the interface between libs and thus cannot have
fields added in the middle without major bump
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec_flush_buffers() must release all internally held references
according to its documentation, for which all the threads need to be
flushed.
CC:libav-stable@libav.org
Bug-Id: vlc/9665
These codecs compile all of the MJPEG code anyway, so there is little
point in not enabling the MJPEG decoder directly. This also simplifies
the dependency declarations for the MJPEG codec family.
Janne Grunau
Marton Balint
Keiji Costantini
Diego Biurrun
Nicolas George
Michael Niedermayer
Hendrik Leppkes
Derek Buitenhuis
Andreas Cadhalpun
Rainer Hochecker
James Almer
sfan5
Christophe Gisquet
Rémi Denis-Courmont
Vittorio Giovara
Jan Ekström
Anton Khirnov