* commit 'cdf6eb5a9710566be217a3f17d3d94ac4e4d2662':
vc1: Do not return an error when skipping b frames
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This caused mpv (and possibly others) to fallback to software decoding after
seeking a VC1 stream.
Bug-Id: 667
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Initialise VC1DSPContext for parser as well as for decoder.
Note, the VC-1 code doesn't actually use the function pointer yet.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This allows further unrolling the DSP implementation where possible.
x86 and ARM DSP modified by simply moving the multiple calls from vc1dec
to the DSP code. Decoding improvements should only occurs because of the
compiler actually able to unroll more.
Decoding time: ~8.80s -> 8.64s (ie around 2%)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The most interesting parts are initialization in ff_MPV_common_init() and
uninitialization in ff_MPV_common_end().
ff_mpeg_unref_picture and ff_thread_release_buffer have additional NULL
checks for Picture.f, because these functions can be called on
uninitialized or partially initialized Pictures.
NULL pointer checks are added to ff_thread_release_buffer() stub function.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
This case could occur when cuting and concatenating bitstreams
Fixes out of array read
Fixes: asan_heap-oob_1b33fdd_2849_cov_478905890_SA10143.vc1
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'ebfe622bb1ca57cecb932e42926745cba7161913':
mpegvideo: drop support for real (non-emulated) edges
Conflicts:
libavcodec/mpegvideo.c
libavcodec/mpegvideo_motion.c
libavcodec/wmv2.c
If this is slower on a major platform then it should be investigated
and potentially reverted.
See: 8fc52a5ef9
See: 3969b4b861
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Several decoders disable those anyway and they are not measurably faster
on x86. They might be somewhat faster on other platforms due to missing
emu edge SIMD, but the gain is not large enough (and those decoders
relevant enough) to justify the added complexity.
This ensures that no mvs are uninitialized at the time of loop filtering
Fixes: msan_uninit-mem_7f0b6dfe293c_2786_SA20021.vc1
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Tables are always allocated now with sufficient space for either progressive
or interlaced content. The alternative would be to detect a change
and reallocate.
This fixes decoding of a sample.
Signed-off-by: Martin Storsjö <martin@martin.st>
Fixes ticket2531
Tables are always allocated now with sufficient space for either progressive
or interlaced content. The alternative would be to detect a change
and reallocate.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes use of uninitialized data, as alternative alpha could be
calculated conditionally
Fixes part of msan_uninit-mem_7f51a8b0b3b0_1009_Arlington.wmv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes use of uninitialized data
Fixes part of msan_uninit-mem_7f51a8b0b3b0_1009_Arlington.wmv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '66499f34b56fc6a9fdef25543bd9d576fc787895':
mpegvideo: do not set current_picture_ptr in decoders
Conflicts:
libavcodec/mss2.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'ac1fc92ea410c396594fcd79f5d4491fe6a8cc90':
vc1dec: move setting repeat_pict after frame_start() has been called.
Conflicts:
libavcodec/vc1dec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This code was originally added in
5f1948111a to h263 to set decoded frame
pts to some random numbers (removed in
a1c5cc429d) and then cargo culted to other
decoders.
The code is left in h263dec for now, since some part of the decoder
(apparently OBMC) relies on the specific previous frame to be reused.
Happens on a B-frame when neither low_delay nor last_picture_ptr is set
(probably corrupted streams only).
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
* commit 'd48c20630214a4effcc920e93a5044bee4e2002e':
qtrleenc: use the AVFrame API properly.
ulti: use the AVFrame API properly.
vc1: use the AVFrame API properly.
flashsv: use the AVFrame API properly.
Conflicts:
libavcodec/flashsv.c
libavcodec/qtrleenc.c
libavcodec/ulti.c
libavcodec/vc1dec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '458446acfa1441d283dacf9e6e545beb083b8bb0':
lavc: Edge emulation with dst/src linesize
Conflicts:
libavcodec/cavs.c
libavcodec/h264.c
libavcodec/hevc.c
libavcodec/mpegvideo_enc.c
libavcodec/mpegvideo_motion.c
libavcodec/rv34.c
libavcodec/svq3.c
libavcodec/vc1dec.c
libavcodec/videodsp.h
libavcodec/videodsp_template.c
libavcodec/vp3.c
libavcodec/vp8.c
libavcodec/wmv2.c
libavcodec/x86/videodsp.asm
libavcodec/x86/videodsp_init.c
Changes to the asm are not merged, they are left for volunteers or
in their absence for later.
The changes this merge introduces are reordering of the function
arguments
See: face578d56
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Allow supporting files for which the image stride is smaller than
the maximum block size + number of subpel mc taps, e.g. a 64x64 VP9
file or a 16x16 VP8 file with -fflags +emu_edge.
This allows supporting files for which the image stride is smaller than
the max. block size + number of subpel mc taps, e.g. a 64x64 VP9 file
or a 16x16 VP8 file with -fflags +emu_edge.
