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152 Commits

Author SHA1 Message Date
Andreas Rheinhardt 8c01eb0a31 avcodec/cabac: Move encoder related stuff to libavcodec/tests/cabac.c
(This is actually the second time the encoder stuff is removed;
the first was in 8b4119187b62d6932e07aded11d33d3b24e1b42f.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2021-02-02 23:53:30 +01:00
Michael Niedermayer 8000d484b8 avcodec/cabac: Check initial cabac decoder state
Fixes integer overflows
Fixes: 1430e9c43fae47a24c179c7c54f94918/signal_sigsegv_421427_2340_591e9810c7b09efe501ad84638c9e9f8.264

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Found-by: xiedingbao (Ticket4727)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-11-27 13:52:47 +01:00
Anton Khirnov 8a73b8c5b4 cabac: Make cabac starts hardcoded
There's not much reason to generate such a small table at runtime.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
2015-10-10 09:52:18 +02:00
Derek Buitenhuis 9692fd7622 Revert "cabac: Allow hardcoding CABAC table."
This becomes unuseful in the following commit.

This reverts commit 092d1977cc.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
2015-10-10 09:52:13 +02:00
Reimar Döffinger 092d1977cc cabac: Allow hardcoding CABAC table.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2014-09-06 20:59:20 +02:00
Michael Niedermayer cbee7ff0b7 Merge commit 'dfe224f377be3e45758c69d881ca7874b82d647a'
* commit 'dfe224f377be3e45758c69d881ca7874b82d647a':
  aarch64: get_cabac inline asm

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-09 13:27:04 +01:00
Janne Grunau dfe224f377 aarch64: get_cabac inline asm
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().
2014-03-09 00:45:33 +01:00
Janne Grunau 8b4119187b cabac: remove leftovers from the cabac encoder
The cabac encoder was only used by the removed cabac test.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
2014-01-14 22:19:03 +01:00
Michael Niedermayer 0fe4b48540 cabac: remove unused argument of ff_init_cabac_states()
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2013-03-13 09:14:05 +01:00
Michael Niedermayer bfb39023b0 h264: ff_init_cabac_states doesnt use its argument thus remove it
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-08-26 05:44:46 +02:00
Roland Scheidegger 7f668cd2b5 h264: use one table instead of several for cabac functions
The reason is this is easier for PIC code (in particular on darwin...).
Keep the old names as pointers (static in cabac_functions.h so gcc
knows these are just immediate offsets) so the c code can nicely stay the same
(alternatively could use offsets directly in the functions needing the
tables). This should produce the same code as before with non-pic and better
code (confirmed) with pic.

The assembly uses the new table but still won't work for PIC case.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-04-28 20:02:27 +02:00
Michael Niedermayer e986a5d10d Merge remote-tracking branch 'qatar/master'
* qatar/master:
  FATE: add tests for targa
  ARM: fix Thumb-mode simple_idct_arm
  ARM: 4-byte align start of all asm functions
  rgb2rgb: rgb12to15()
  swscale-test: fix stack overread.
  swscale: fix invalid conversions and memory problems.
  cabac: split cabac.h into declarations and function definitions
  cabac: Mark ff_h264_mps_state array as static, it is only used within cabac.c.
  cabac: Remove ff_h264_lps_state array.

Conflicts:
	libswscale/rgb2rgb.h
	libswscale/swscale_unscaled.c
	tests/fate/image.mak

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-14 02:22:09 +01:00
Diego Biurrun 55b9ef18e4 cabac: split cabac.h into declarations and function definitions
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.
2012-01-12 23:08:23 +01:00
Diego Biurrun 0a60780c7f cabac: Mark ff_h264_mps_state array as static, it is only used within cabac.c. 2012-01-12 22:57:42 +01:00
Diego Biurrun 64d779f2f7 cabac: Remove ff_h264_lps_state array.
It was only ever used in the cabac test program, but never initialized.
2012-01-12 22:54:24 +01:00
Michael Niedermayer 757473831c Merge remote-tracking branch 'qatar/master'
* qatar/master: (29 commits)
  cabac: Move code only used within the CABAC test program into the test program.
  vp56: Drop unnecessary cabac.h #include.
  h264-test: Initialize AVCodecContext.av_class.
  build: Skip compiling network.h and rtsp.h if networking is not enabled.
  cosmetics: drop some pointless parentheses
  Disable annoying warning without changing behavior
  faq: Solutions for common problems with sample paths when running FATE.
  avcodec: attempt to clarify the CODEC_CAP_DELAY documentation
  avcodec: fix avcodec_encode_audio() documentation.
  FATE: xmv-demux test; exercise the XMV demuxer without decoding the perceptual codecs inside.
  vqf: recognize more metadata chunks
  FATE test: BMV demuxer and associated video and audio decoders.
  FATE: indeo4 video decoder test.
  FATE: update xxan-wc4 test to a sample with more code coverage.
  Change the recent h264_mp4toannexb bitstream filter test to output to an elementary stream rather than a program stream.
  g722enc: validate AVCodecContext.trellis
  g722enc: set frame_size, and also handle an odd number of input samples
  g722enc: split encoding into separate functions for trellis vs. no trellis
  mpegaudiodec: Use clearer pointer math
  tta: Fix returned error code at EOF
  ...

Conflicts:
	libavcodec/h264.c
	libavcodec/indeo3.c
	libavcodec/interplayvideo.c
	libavcodec/ivi_common.c
	libavcodec/libxvidff.c
	libavcodec/mpegvideo.c
	libavcodec/ppc/mpegvideo_altivec.c
	libavcodec/tta.c
	libavcodec/utils.c
	libavfilter/vsrc_buffer.c
	libavformat/Makefile
	tests/fate/indeo.mak
	tests/ref/acodec/g722

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-08 03:34:22 +01:00
Diego Biurrun badb195d13 cabac: Move code only used within the CABAC test program into the test program. 2012-01-07 22:13:14 +01:00
Michael Niedermayer 6a56f4e634 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  flicvideo: fix invalid reads
  vorbis: Avoid some out-of-bounds reads
  vqf: add more known extensions
  cabac: remove unused function renorm_cabac_decoder
  h264: Only use symbols from the SVQ3 decoder under proper conditionals.
  add bytestream2_tell() and bytestream2_seek() functions
  parsers: initialize MpegEncContext.slice_context_count to 1
  spdifenc: use special alignment for DTS-HD length_code

Conflicts:
	libavcodec/flicvideo.c
	libavcodec/h264.c
	libavcodec/mpeg4video_parser.c
	libavcodec/vorbis.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-07 02:30:27 +01:00
Diego Biurrun 3aa3fc45fe cabac: remove unused function renorm_cabac_decoder 2012-01-06 13:37:55 +01:00
Michael Niedermayer 7f83db3124 Merge remote-tracking branch 'qatar/master'
* qatar/master: (46 commits)
  mtv: Make sure audio_subsegments is not 0
  v4l2: use V4L2_FMT_FLAG_EMULATED only if it is defined
  avconv: add symbolic names for -vsync parameters
  flvdec: Fix compiler warning for uninitialized variables
  rtsp: Fix compiler warning for uninitialized variable
  ulti: convert to new bytestream API.
  swscale: Use standard multiple inclusion guards in ppc/ header files.
  Place some START_TIMER invocations in separate blocks.
  v4l2: list available formats
  v4l2: set the proper codec_tag
  v4l2: refactor device_open
  v4l2: simplify away io_method
  v4l2: cosmetics
  v4l2: uniform and format options
  v4l2: do not force interlaced mode
  avio: exit early in fill_buffer without read_packet
  vc1dec: fix invalid memory access for small video dimensions
  rv34: fix invalid memory access for small video dimensions
  rv34: joint coefficient decoding and dequantization
  avplay: Don't call avio_set_interrupt_cb(NULL)
  ...

Conflicts:
	Changelog
	avconv.c
	doc/APIchanges
	doc/indevs.texi
	libavcodec/adxenc.c
	libavcodec/dnxhdenc.c
	libavcodec/h264.c
	libavdevice/v4l2.c
	libavformat/flvdec.c
	libavformat/mtv.c
	libswscale/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-05 02:03:12 +01:00
Diego Biurrun 9dec55748c cabac: drop unused and disabled get_cabac_u() / get_cabac_ueg() functions 2012-01-04 01:09:54 +01:00
Diego Biurrun e451c26c5f cabac: drop unused STRICT_LIMITS code branch 2012-01-04 01:09:53 +01:00
Michael Niedermayer 78accb876c Merge remote-tracking branch 'qatar/master'
* qatar/master:
  ffmpeg: fix some indentation
  ffmpeg: fix operation with --disable-avfilter
  simple_idct: remove disabled code
  motion_est: remove disabled code
  vc1: remove disabled code
  fate: separate lavf-mxf_d10 test from lavf-mxf
  cabac: Move code only used in the cabac test program to cabac.c.
  ffplay: warn that -pix_fmt is no longer working, suggest alternative
  ffplay: warn that -s is no longer working, suggest alternative
  lavf: rename enc variable in utils.c:has_codec_parameters()
  lavf: use designated initialisers for all (de)muxers.
  wav: remove a use of deprecated AV_METADATA_ macro
  rmdec: remove useless ap parameter from rm_read_header_old()
  dct-test: remove write-only variable
  des: fix #if conditional around P_shuffle
  Use LOCAL_ALIGNED in ff_check_alignment()

Conflicts:
	ffmpeg.c
	libavformat/avidec.c
	libavformat/matroskaenc.c
	libavformat/mp3enc.c
	libavformat/oggenc.c
	libavformat/utils.c
	tests/ref/lavf/mxf

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-07-17 20:12:02 +02:00
Diego Biurrun fd065d3e79 cabac: Move code only used in the cabac test program to cabac.c. 2011-07-17 12:56:42 +02:00
Michael Niedermayer 6cbe81999b Merge remote-tracking branch 'qatar/master'
* qatar/master: (28 commits)
  Replace usages of av_get_bits_per_sample_fmt() with av_get_bytes_per_sample().
  x86: cabac: fix register constraints for 32-bit mode
  cabac: move x86 asm to libavcodec/x86/cabac.h
  x86: h264: cast pointers to intptr_t rather than int
  x86: h264: remove hardcoded edi in decode_significance_8x8_x86()
  x86: h264: remove hardcoded esi in decode_significance[_8x8]_x86()
  x86: h264: remove hardcoded edx in decode_significance[_8x8]_x86()
  x86: h264: remove hardcoded eax in decode_significance[_8x8]_x86()
  x86: cabac: change 'a' constraint to 'r' in get_cabac_inline()
  x86: cabac: remove hardcoded esi in get_cabac_inline()
  x86: cabac: remove hardcoded edx in get_cabac_inline()
  x86: cabac: remove unused macro parameter
  x86: cabac: remove hardcoded ebx in inline asm
  x86: cabac: remove hardcoded struct offsets from inline asm
  cabac: remove inline asm under #if 0
  cabac: remove BRANCHLESS_CABAC_DECODER switch
  cabac: remove #if 0 cascade under never-set #ifdef ARCH_X86_DISABLED
  document libswscale bump
  error_resilience: skip last-MV predictor step if MVs are not available.
  error_resilience: actually add counter when adding a MV predictor.
  ...

Conflicts:
	Changelog
	libavcodec/error_resilience.c
	libavfilter/defaults.c
	libavfilter/vf_drawtext.c
	libswscale/swscale.h
	tests/ref/vsynth1/error
	tests/ref/vsynth2/error

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-06-21 03:38:25 +02:00
Mans Rullgard 2143d69bdd cabac: move x86 asm to libavcodec/x86/cabac.h
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-20 22:36:31 +01:00
Mans Rullgard 3146a30e61 x86: cabac: change 'a' constraint to 'r' in get_cabac_inline()
Nothing requires this value in %eax.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-20 22:36:30 +01:00
Mans Rullgard f743595e87 x86: cabac: remove hardcoded esi in get_cabac_inline()
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-20 22:36:30 +01:00
Mans Rullgard da3af4db61 x86: cabac: remove hardcoded edx in get_cabac_inline()
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-20 22:36:30 +01:00
Mans Rullgard 51f16a9bf2 x86: cabac: remove unused macro parameter
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-20 22:36:30 +01:00
Mans Rullgard 018c33838e x86: cabac: remove hardcoded ebx in inline asm
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-20 22:36:30 +01:00
Mans Rullgard 6b712acc0e x86: cabac: remove hardcoded struct offsets from inline asm
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-20 22:36:30 +01:00
Mans Rullgard 34ee43fc0f cabac: remove inline asm under #if 0
A comment says it's not faster than the C code.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-20 22:36:30 +01:00
Mans Rullgard 8fcc0e7978 cabac: remove BRANCHLESS_CABAC_DECODER switch
The code does not compile without this set.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-20 22:36:29 +01:00
Mans Rullgard eaa2d5a90a cabac: remove #if 0 cascade under never-set #ifdef ARCH_X86_DISABLED
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-20 22:36:29 +01:00
Mans Rullgard 2912e87a6c Replace FFmpeg with Libav in licence headers
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19 13:33:20 +00:00
Diego Biurrun ba87f0801d Remove explicit filename from Doxygen @file commands.
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
2010-04-20 14:45:34 +00:00
Reimar Döffinger f2d702e109 Replace #ifdef PIC checks with the more appropriate HAVE_EBX_AVAILABLE/HAVE_7REGS.
Originally committed as revision 19676 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-21 09:54:28 +00:00
Stefano Sabatini b275500706 Split bitstream.h, put the bitstream writer stuff in the new file
put_bits.h.

Originally committed as revision 18461 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-04-12 08:35:26 +00:00
Diego Biurrun bad5537e2c Use full internal pathname in doxygen @file directives.
Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.

Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-02-01 02:00:19 +00:00
Aurelien Jacobs b250f9c66d Change semantic of CONFIG_*, HAVE_* and ARCH_*.
They are now always defined to either 0 or 1.

Originally committed as revision 16590 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-13 23:44:16 +00:00
Diego Pettenò be449fca79 Convert asm keyword into __asm__.
Neither the asm() nor the __asm__() keyword is part of the C99
standard, but while GCC accepts the former in C89 syntax, it is not
accepted in C99 unless GNU extensions are turned on (with -fasm). The
latter form is accepted in any syntax as an extension (without
requiring further command-line options).

Sun Studio C99 compiler also does not accept asm() while accepting
__asm__(), albeit reporting warnings that it's not valid C99 syntax.

Originally committed as revision 15627 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-16 13:34:09 +00:00
Diego Biurrun 3fe5ae2b3a Remove useless #ifdef around #include.
Originally committed as revision 15329 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-14 22:18:50 +00:00
Diego Biurrun ab21090869 Silence a couple of 'defined but not used' warnings by adding an av_unused
attribute to the relevant function declarations.

Originally committed as revision 15161 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-02 23:14:11 +00:00
Stefano Sabatini 987903826b Globally rename the header inclusion guard names.
Consistently apply this rule: the guard name is obtained from the
filename by stripping the leading "lib", converting '/' and '.'  to
'_' and uppercasing the resulting name. Guard names in the root
directory have to be prefixed by "FFMPEG_".

Originally committed as revision 15120 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31 07:39:47 +00:00
Diego Biurrun 245976da2a Use full path for #includes from another directory.
Originally committed as revision 13098 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-09 11:56:36 +00:00
Jeff Downs 52cb7981e2 Redo r12838, this time using svn copy to create h264_i386.h from cabac.h.
Move decode_significance_x86() and decode_significance_8x8_x86() to
i386-specific file from cabac.h.
New file is h264-oriented and only included from h264.c
Resolves compilation when configured with --disable-optimizations due to
decode_significance_8x8_x86 using last_coeff_flag_offset_8x8, which is
only defined in h264.c

Originally committed as revision 12846 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-04-16 04:40:21 +00:00
Jeff Downs 3aa9ede400 Revert 12838 to redo it the right way (use svn copy to create new
file based on old).

Originally committed as revision 12845 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-04-16 04:26:52 +00:00
Jeff Downs e6cfd8fffb Move decode_significance_x86() and decode_significance_8x8_x86() to
i386-specific file from cabac.h.
New file is h264-oriented and only included from h264.c
Resolves compilation when configured with --disable-optimizations due to
decode_significance_8x8_x86 using last_coeff_flag_offset_8x8, which is
only defined in h264.c

Originally committed as revision 12838 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-04-15 13:51:41 +00:00
Måns Rullgård ea68e33469 cosmetics: remove useless \-newline escapes
Originally committed as revision 12479 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-03-17 21:00:30 +00:00