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Fixes a segfault with fuzzed sample sample_varPAR_s11622_r001-02.avi.
CC: libav-stable@libav.org
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Swapping buffer indices allows saving one memcpy that accounts for 1% of the
runtime, according to oprofile.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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Fixes linking with only the FLAC encoder enabled.
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Fixes mov_h264_aac__Demo_FlagOfOurFathers.mov.SIGSEGV.4e9.656.
Found-by: Mateusz "j00ru" Jurczyk
CC: libav-stable@libav.org
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Fixes a segfault in the fuzzed sample resolutionchange.flv_s314809.
CC: libav-stable@libav.org
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Some optimized functions reference optimized symbols, so the functions
must be explicitly disabled when those symbols are unavailable.
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Some combinations of OS, VirtualDub, and VBLE can accidentally
set the version to a value other than 1. Since no other version
of VBLE was ever released, simply warn about it.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
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This does not seem to have an effect currently. Fate-h264 passes with
THREADS=1..16 and both threading types as before. It fixes however a
segfault during error resilience with my adaptive-frame-mt patchset.
A picture in use during error resilience gets realloced in another
thread in the fuzzed sample sample_varPAR.avi_s226019.
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Fixes segfault in the fuzzed sample bipbop234.ts_s226407.
CC: libav-stable@libav.org
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When the extra rear channel is present but unused, the
s->channel_order_tab[] value for that channel is -1. The QMF can be
skipped for the extra channel, and doing so avoids an out-of-array read
on s->samples_chanptr[].
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
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This fixes segfault caused by 3d3cf6745e2a5dc9c377244454c3186d75b177fa
when SingleChannelElement.ret was renamed to SingleChannelElement.ret_buf.
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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Fixes a segfault in te fuzzed sample resolutionchange.flv_s211713.
CC: libav-stable@libav.org
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Dropping frames is undesirable but that is the only way by which the
decoder could return to low delay mode. Instead emit a warning and
continue with delayed frames.
Fixes a crash in fuzzed sample nasa-8s2.ts_s20033 caused by a larger
than expected has_b_frames value. Low delay keeps getting re-enabled
from a presumely broken SPS.
CC: libav-stable@libav.org
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The qpel functions referenced here are not related to h264 and should
thus never have been under CONFIG_H264QPEL.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Diego Biurrun <diego@biurrun.de>
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This is needed for the AAC decoder, which may need to call get_buffer()
more than once if the channel configuration changes.
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Fixes xmm register clobbering on win64.
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
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The only CPUs that have 3dnow and don't have mmxext are 12 years old.
Moreover, AMD has dropped 3dnow extensions from newer CPUs.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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The vertical offset mask 0x07 is suspicious.
v_off = FFMIN(data[2] & 0x07, CDG_BORDER_HEIGHT - 1);
Note that v_off is up to 11 (CDG_BORDER_HEIGHT - 1), the correct mask
should be 0x0F.
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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The sample count is decremented by the DECODE() macro and needs to be reset
in each loop iteration. Also, DECODE() increments the src pointer so that does
not need to be done separately.
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It is pleonastic and was used in stale functions pending replacement.
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All the non deprecated functions are in avpicture.c now.
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Function names changed after switching to declaration with
PRED4x4/8x8/8x8L/16x16 macros in the C code.
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pts should be that of the packet containing the presentation segment.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
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s->mb_x is reset to zero a couple of lines above. It does not make
sense to call ff_er_add_slice() with 0 as endx when the end of the
macroblock row was reached. Fixes unnecessary and counterproductive
error resilience in https://bugzilla.libav.org/show_bug.cgi?id=394.
CC: libav-stable@libav.org
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Fixes a crash with zuffed files.
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Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Diego Biurrun <diego@biurrun.de>
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Was left out from c1a02e884ac785033baab356a5437adf057a4189.
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It is used only in one place and is unlikely it would be needed
elsewhere.
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Deprecate avcodec_get_chroma_sub_sample.
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This removes warnings about strict aliasing violations.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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