Age | Commit message (Collapse) | Author |
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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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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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Add the namespace to {AC_,DC_,MV_}{END,ERROR} macros
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
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Fixes fate-h264-conformance-{mr2_tandberg_e,mr3_tandberg_b} without
requiring -strict 1.
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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: Diego Biurrun <diego@biurrun.de>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
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This fixes a bunch of unused function warnings.
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This resolves a circular dependency between the headers.
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Fixes the following compile error with darwin/gcc-4.2.1:
In file included from libavcodec/error_resilience.c:33:
libavcodec/h264.h: In function ‘decode_mb_skip’:
libavcodec/h264.h:773: error: ‘always_inline’ function could not be inlined in call to ‘pred_pskip_motion’: the function body must appear before caller
libavcodec/h264.h:1334: error: called from here
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FF_COMMON_FRAME holds the contents of the AVFrame structure and is also copied
to struct Picture. Replace by an embedded AVFrame structure in struct Picture.
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Inline the relevant parts of fill_decode_caches into P-SKIP mv prediction to
avoid calling the whole thing.
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These weren't getting inlined all the time in all gcc versions.
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Faster H.264 decoding with ALLOW_INTERLACE off.
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Aliasing avoidance and general cleanup.
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Avoid aliasing, unroll loops, and inline more functions.
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Before this, almost all module groups have been used for grouping functions
and fields in structures semantically. This causes them to not appear
properly in the file documentation and needlessly clutters up the "Modules"
index.
Additionally, this commit streamlines some spelling and appearances.
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Note: this is 4:4:4 from the 2007 spec revision, not the previous (now deprecated) 4:4:4 mode in H.264.
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Needs some ARM/PPC asm modifications.
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Note: this is 4:4:4 from the 2007 spec revision, not the previous (now deprecated) 4:4:4 mode in H.264.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Diego Biurrun <diego@biurrun.de>
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Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
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In high bit depth, the QP values may now be up to (51 + 6*(bit_depth-8)).
Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
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In high bit depth the pixels will not be stored in uint8_t like in the
normal case, but in uint16_t. The pixel size is thus 1 in normal bit
depth and 2 in high bit depth.
Preparatory patch for high bit depth h264 decoding support.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
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Signed-off-by: Mans Rullgard <mans@mansr.com>
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Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
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No speed improvement, but necessary for some future stuff.
Also opens up the possibility of asm chroma dc idct/dequant.
Originally committed as revision 26349 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Useful so that we don't have to run the hierarchical DC iDCT if there aren't
any coefficients. Opens up some future opportunities for optimization as well.
Originally committed as revision 26337 to svn://svn.ffmpeg.org/ffmpeg/trunk
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About 2.5x the speed.
NOTE: the way that the asm code handles large qmuls is a bit suboptimal.
If x264-style dequant was used (separate shift and qmul values), it might
be possible to get some extra speed.
Originally committed as revision 26336 to svn://svn.ffmpeg.org/ffmpeg/trunk
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libavcodec/h264.h:1260: warning: ‘decode_mb_skip’ defined but not used
patch by Eli Friedman, eli.friedman gmail com
Originally committed as revision 24069 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 24056 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 23364 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Fixes many "non-existing PPS referenced" error messages
Originally committed as revision 23363 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Patch by Howard Chu, hyc highlandsun com
Originally committed as revision 23340 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.
Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
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The function is only used within that file, so it makes sense to place
it there. This fixes many warnings of the type:
h264.h:1170: warning: ‘fill_filter_caches’ defined but not used
Originally committed as revision 22876 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 22733 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 22729 to svn://svn.ffmpeg.org/ffmpeg/trunk
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This moves the H264-specific functions from DSPContext to the new
H264DSPContext. The code is made conditional on CONFIG_H264DSP
which is set by the codecs requiring it.
The qpel and chroma MC functions are not moved as these are used by
non-h264 code.
Originally committed as revision 22565 to svn://svn.ffmpeg.org/ffmpeg/trunk
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This fixes libavcodec/h264.h:1100: warning: integer overflow in expression
Originally committed as revision 22558 to svn://svn.ffmpeg.org/ffmpeg/trunk
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These macros are redundant. All uses are replaced with the generic
DECLARE_ALIGNED macro instead.
Originally committed as revision 22233 to svn://svn.ffmpeg.org/ffmpeg/trunk
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1 cpu cycle faster
Originally committed as revision 22193 to svn://svn.ffmpeg.org/ffmpeg/trunk
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Originally committed as revision 22192 to svn://svn.ffmpeg.org/ffmpeg/trunk
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