Age | Commit message (Collapse) | Author |
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Signed-off-by: Martin Storsjö <martin@martin.st>
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Signed-off-by: Martin Storsjö <martin@martin.st>
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Conversion of the luma intra prediction mode to one of the constrained
("alzheimer") ones can happen by crafting special bitstreams, causing
a crash because we'll call a NULL function pointer for 16x16 block intra
prediction, since constrained intra prediction functions are only
implemented for chroma (8x8 blocks).
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
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The new name is more appropriate as only golomb functions are tested.
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This also avoids a segfault on startup.
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This fixes standalone compilation of some decoders with --disable-optimizations.
cabac.h defines some inline functions that use symbols from cabac.c. Without
optimizations these inline functions are not eliminated and linking fails with
references to non-existing symbols.
Splitting the inline functions off into their own header and only #including
it in the places where the inline functions are used allows #including cabac.h
from anywhere without ill effects.
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This fixes a segfault on startup.
Also remove a commented-out and completely unused variable.
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Fixes --disable-everything --enable-decoder=h264 --disable-optimizations.
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Fixes hangs if the last packet contains an end-of-sequence NAL unit,
bug 158.
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This fixes compilation failures related to START_TIMER/STOP_TIMER macros and
-Werror=declaration-after-statement. START_TIMER declares variables and thus
may not be placed after statements outside of a new block.
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Adds a new member to MpegEncContext to hold the number of used slice
contexts. Fixes segfaults with '-threads 17 -thread_type slice' and
fate-vsynth{1,2}-mpeg{2,4}thread{,_ilace} with --disable-pthreads.
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Trailing bits are likely to be non-zero if the NAL unit is truncated.
Clearing the bits make overreads of the bitstream less likely in this
case. Fixes playback of
http://streams.videolan.org/streams/mp4/Mr_MrsSmith-h264_aac.mp4 which
has a forbidden byte sequence of 0x00 0x00 0x00 in it SPS.
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This reverts commit 87eebb3454ff0cd6af6ebf9e1d31bdfd1c3b601b.
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Start code emulation prevention is only required in Annex B bytestream
packed NAL units. For other coding formats the size is already known.
Looking for a start code prefix can result in false positives like in
http://streams.videolan.org/streams/mp4/Mr_MrsSmith-h264_aac.mp4
which has a false positive in the SPS.
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The keyframe after a POC reset may not be the first to be returned to
the user. Therefore, don't reset the expected next POC once we return
a keyframe to the user, but once we know that the next frame in the
return-queue is a keyframe.
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Simplify a little error resilience calls
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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Add the namespace to {AC_,DC_,MV_}{END,ERROR} macros
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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These semicolons cause invalid empty top-level declarations.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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Fixes fate-h264-conformance-{mr2_tandberg_e,mr3_tandberg_b} without
requiring -strict 1.
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This prevents frame allocation overflows, and fixed
fate-h264-conformance-mr3_tandberg_b with 2 threads.
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A new field, AVCodecContext.internal is used to hold a new struct
AVCodecInternal, which has private fields that are not codec-specific and are
used by general libavcodec functions.
Moved internal_buffer, internal_buffer_count, and is_copy.
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Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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Fixes the following conformance suite samples:
HCBP1_HHI_A.264, HCBP2_HHI_A.264, HCMP1_HHI_A.264 (main)
HCHP1_HHI_B.264, HCHP2_HHI_A.264, HCHP3_HHI_A.264 (frext)
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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
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use AVCodecContext.err_recognition
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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This actually causes them to be inlined, leading to a significant
speedup (1-1.5% in my measurements).
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Neon parts by Mans Rullgard <mans@mansr.com>.
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
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Replace our incomplete w32threads implementation with x264's pthreads
w32threads wrapper.
Relicensed to LGPL with kind permission by Pegasys Inc.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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Unsupported bit depth is certainly an error the user will
want to know about.
Signed-off-by: Mans Rullgard <mans@mansr.com>
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ff_h264_decode_ref_pic_list_reordering()
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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slice that contains a start-of-field/frame macroblock
This allows concurrent decoding of the last field/frame, rather than
only the last slice, of data packets with multiple NAL units packed
together.
This will fix the slowdown reported in e.g. bug 52.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
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This fixes build failures with -DDEBUG in CPPFLAGS.
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This reverts commit b47904d158709bdec1a9d40e83d1abadf50081dc.
coded_{width, height} overwrites width and height in avcodec_open and
it currently just report the non-lowres size.
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
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Correct computation of implicit weight tables when referencing pictures
that are marked for long reference.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
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