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124 Commits

Author SHA1 Message Date
Steinar H. Gunderson
eaff1aa09e avcodec: move bitswap_32() into a header file 
Allows more codecs than mpeg12video to make use of it.
 2017-01-11 15:40:01 +01:00
Michael Niedermayer
7ca2a23aaa avcodec/bitstream: Document the values supported for *_size in ff_init_vlc_sparse() 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-01-05 12:08:24 +01:00
Michael Niedermayer
8f1d18a91b avcodec/bitstream: assert that *_size in ff_init_vlc_sparse() is valid 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-01-05 12:08:23 +01:00
Clément Bœsch
bcafc41a5a Merge commit 'ffa190d0479d2370dd89c95692f822cbff2cc24c' 
* commit 'ffa190d0479d2370dd89c95692f822cbff2cc24c':
  Move VLC and RL_VLC_ELEM structure definitions to a separate header

Merged-by: Clément Bœsch <u@pkh.me>
 2016-06-23 00:29:25 +02:00
Clément Bœsch
8ef57a0d61 Merge commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb' 
* commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb':
  cosmetics: Fix spelling mistakes

Merged-by: Clément Bœsch <u@pkh.me>
 2016-06-21 21:55:34 +02:00
Alexandra Hájková
ffa190d047 Move VLC and RL_VLC_ELEM structure definitions to a separate header 
Use the newly created vlc.h directly instead of including get_bits when needed.
The VLC and RL_VLC_ELEM structures are independent from the bitreader.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
 2016-05-17 10:29:27 +02:00
Vittorio Giovara
41ed7ab45f cosmetics: Fix spelling mistakes 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2016-05-04 18:16:21 +02:00
Lou Logan
06eef96b69 fix some a/an typos 
Signed-off-by: Lou Logan <lou@lrcd.com>
 2016-03-28 14:13:17 -08:00
Reimar Döffinger
5f5e6033cd bitstream.c: improve init_vlc error messages. 
Makes it far easier to spot the issue if e.g.
caused by a typo in the code table.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
 2016-03-06 12:31:40 +01:00
Ganesh Ajjanagadde
e11e32686f avcodec/bitstream: replace qsort with AV_QSORT 
Commit 3a0a2f33a6 claims large performance
advantages for AV_QSORT over libc's qsort. The reason is that I suspect
that libc's qsort (at least on non LTO builds, like the typical FFmpeg config)
can't inline the comparison callback:
https://stackoverflow.com/questions/5290695/is-there-any-way-a-c-c-compiler-can-inline-a-c-callback-function.
AV_QSORT has two things going for it:
1. The guaranteed inlining of qsort itself. This yields a negligible
boost that may be ignored.
2. The more serious possibility of potentially allowing the comparison
function to be inlined - this is likely responsible for the large boosts
reported.

There is a comment explaining that this is a place that could use some
performance improvement. Thus AV_QSORT is used to achieve that.

Benchmarks deemed unnecessary due to existing claims about AV_QSORT.
Tested with FATE.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
 2015-10-18 09:22:49 -04:00
Andreas Cadhalpun
28efeb6502 doc: avoid incorrect phrase 'allows to' 
Also fix typo found by Lou Logan:
Sacrifying -> Sacrificing

Reviewed-by: Lou Logan <lou@lrcd.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2015-06-16 21:48:51 +02:00
Andreas Cadhalpun
ed0b1db640 doc: fix spelling errors 
Neccessary -> Necessary
formated   -> formatted
thee       -> the
eventhough -> even though
seperately -> separately

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
 2015-06-14 15:09:33 +02:00
Michael Niedermayer
291ad5cc9c avcodec/bitstream: Assert that there is enough space left in avpriv_copy_bits() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-05-25 05:14:02 +02:00
Michael Niedermayer
8f7b022c8c Merge commit '6a85dfc830f51f1f5c2d36d4182d265c1ea3ba25' 
* commit '6a85dfc830f51f1f5c2d36d4182d265c1ea3ba25':
  lavc: Replace av_dlog and tprintf with internal macros

Conflicts:
	libavcodec/aacdec.c
	libavcodec/audio_frame_queue.c
	libavcodec/bitstream.c
	libavcodec/dcadec.c
	libavcodec/dnxhddec.c
	libavcodec/dvbsubdec.c
	libavcodec/dvdec.c
	libavcodec/dvdsubdec.c
	libavcodec/get_bits.h
	libavcodec/gifdec.c
	libavcodec/h264.h
	libavcodec/h264_cabac.c
	libavcodec/h264_cavlc.c
	libavcodec/h264_loopfilter.c
	libavcodec/h264_refs.c
	libavcodec/imc.c
	libavcodec/interplayvideo.c
	libavcodec/jpeglsdec.c
	libavcodec/libopencore-amr.c
	libavcodec/mjpegdec.c
	libavcodec/mpeg12dec.c
	libavcodec/mpegvideo_enc.c
	libavcodec/mpegvideo_parser.c
	libavcodec/pngdec.c
	libavcodec/ratecontrol.c
	libavcodec/rv10.c
	libavcodec/svq1dec.c
	libavcodec/vqavideo.c
	libavcodec/wmadec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-04-20 04:10:10 +02:00
Vittorio Giovara
6a85dfc830 lavc: Replace av_dlog and tprintf with internal macros 2015-04-19 12:41:59 +01:00
Michael Niedermayer
a94eba6f0c Merge commit '7f9f771eac0d37a632e0ed9bd89961d57fcfb7e0' 
* commit '7f9f771eac0d37a632e0ed9bd89961d57fcfb7e0':
  avcodec: Don't anonymously typedef structs

Conflicts:
	libavcodec/alac.c
	libavcodec/cinepak.c
	libavcodec/cscd.c
	libavcodec/dcadec.c
	libavcodec/g723_1.c
	libavcodec/gif.c
	libavcodec/iff.c
	libavcodec/kgv1dec.c
	libavcodec/libopenjpegenc.c
	libavcodec/libspeexenc.c
	libavcodec/ra288.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-02-14 21:18:17 +01:00
Diego Biurrun
7f9f771eac avcodec: Don't anonymously typedef structs 2015-02-14 10:13:49 -08:00
Michael Niedermayer
d266ecff4b avcodec/bitstream: remove trivial assert 
Fixed CID1224273

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-07-02 16:25:40 +02:00
Michael Niedermayer
a2de7b1bd5 avcodec/bitstream: document the double volatile 
Suggested-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-21 14:55:32 +02:00
Michael Niedermayer
329898aa45 avcodec/bitstream: try to workaround internal compiler bug in gcc 4.2 
gcc 4.2 seems not maintained anymore so theres no option besides
just working around it.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-20 21:54:23 +02:00
Michael Niedermayer
e6f9fc4adc avcodec/bitstream: try to make vlc init code inherently thread safe 
also remove spinlock, it doesnt work on AIX

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-16 20:09:21 +02:00
Michael Niedermayer
f7f96cf4bc avcodec/bitstream: fill invalid vlc tables entries as last pass instead of first 
This avoids writing entries twice

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-16 19:10:32 +02:00
Michael Niedermayer
600cbf3672 avcodec/bitstream: zero vlc tables on allocation 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-16 19:10:32 +02:00
Michael Niedermayer
e20e854ca0 vcodec/bitstream: use av_malloc_array() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-04-08 16:18:29 +02:00
Michael Niedermayer
622d463000 avcodec/bitstream: assert that no integer overflow happened when writing codes in build_table() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-01-23 01:43:00 +01:00
Michael Niedermayer
0f65503799 avcodec/bitstream: remove unused variable 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-12-11 14:34:45 +01:00
Michael Niedermayer
8c677a9f06 Merge commit '9b8d11a76ae7bca8bbb58abb822138f8b42c776c' 
* commit '9b8d11a76ae7bca8bbb58abb822138f8b42c776c':
  avcodec: Use av_reallocp where suitable

Conflicts:
	libavcodec/bitstream.c
	libavcodec/eatgv.c
	libavcodec/flashsv.c
	libavcodec/libtheoraenc.c
	libavcodec/libvpxenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-12-09 20:31:29 +01:00
Alexandra Khirnova
9b8d11a76a avcodec: Use av_reallocp where suitable 
Signed-off-by: Martin Storsjö <martin@martin.st>
 2013-12-09 12:27:51 +02:00
Diego Biurrun
29c455ce3d bitstream: Check the result of av_malloc() 2013-10-15 18:01:12 +02:00
Michael Niedermayer
9386f334af avcodec/bitstream: Dont try to free buffers for static VLCs 
Such buffers are not malloced thus freeing would be bad.
Note though this condition never could have happened so this
is more for correctness sake and not a true bugfix

Fixes CID1061047

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-08-08 15:05:48 +02:00
Michael Niedermayer
f80ccf074a avcodec/ff_init_vlc_sparse: use a local array for static vlcs avoiding malloc() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-29 16:48:41 +02:00
Michael Niedermayer
6af8326354 avcodec/ff_init_vlc_sparse: use a spinlock for thread sync 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-29 16:48:41 +02:00
Michael Niedermayer
a9903f7ec1 Revert "bitstream: make vlc init of static tables thread safe." 
This reverts commit 4b6869d6e0.

Conflicts:

	libavcodec/bitstream.c

This code can cause assertion failures on artificial OOM situations
It will be replaced by a solution that doesnt have this issue in the
following commits.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-29 16:48:41 +02:00
Piotr Bandurski
aa74810fc6 bitstream: fix a crash in case of oom 
fixes ticket #2766

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-07-09 19:41:22 +02:00
Michael Niedermayer
301522f521 Merge commit 'f80b60ad59945dae32bb26a4e239ed94b0e92fa3' 
* commit 'f80b60ad59945dae32bb26a4e239ed94b0e92fa3':
  bitstream: forward error values and drop few abort()

Conflicts:
	libavcodec/bitstream.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-06-16 23:29:37 +02:00
Michael Niedermayer
9265bae356 Merge commit 'f776899a17dce32ad7fb9231d98f15558f37cc3f' 
* commit 'f776899a17dce32ad7fb9231d98f15558f37cc3f':
  bitstream: K&R formatting cosmetics

Conflicts:
	libavcodec/bitstream.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-06-16 23:18:57 +02:00
Luca Barbato
f80b60ad59 bitstream: forward error values and drop few abort() 2013-06-16 09:30:26 +02:00
Luca Barbato
f776899a17 bitstream: K&R formatting cosmetics 2013-06-16 09:30:25 +02:00
Michael Niedermayer
1d7e6a6bde avcodec/bitstream: print vlc length in error case. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-05-21 13:51:04 +02:00
Michael Niedermayer
83330cf5fa init_vlc_sparse: fix leak on error 
Fixes CID1005312

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-04-21 11:55:19 +02:00
Michael Niedermayer
6998af4a40 avcodec/bitstream: check codes in ff_init_vlc_sparse() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-04-18 02:57:03 +02:00
Michael Niedermayer
fb3e3808ae avcodec/bitstream: Check bits in ff_init_vlc_sparse() 
Fixes out of array reads

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-04-18 02:47:50 +02:00
Michael Niedermayer
d27edc038a Merge commit '511cf612ac979f536fd65e14603a87ca5ad435f3' 
* commit '511cf612ac979f536fd65e14603a87ca5ad435f3':
  miscellaneous typo fixes

Conflicts:
	libavcodec/4xm.c
	libavcodec/lagarith.c
	libavcodec/parser.c
	libavcodec/ratecontrol.c
	libavcodec/shorten.c
	libavcodec/vda_h264.c
	libavformat/dvenc.c
	libavformat/wtv.c
	tools/patcheck

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-21 17:32:52 +01:00
Diego Biurrun
511cf612ac miscellaneous typo fixes 2012-12-21 00:18:34 +01:00
Michael Niedermayer
4b6869d6e0 bitstream: make vlc init of static tables thread safe. 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-12-06 21:46:42 +01:00
Michael Niedermayer
eed865540a Revert "Add assert that the avcodec lock is held when initializing static VLC tables." 
This reverts commit dd154198b1.
 2012-12-06 02:52:07 +01:00
Reimar Döffinger
dd154198b1 Add assert that the avcodec lock is held when initializing static VLC tables. 
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
 2012-12-05 21:01:17 +01:00
Michael Niedermayer
d6c342fdc0 Merge commit 'd5c62122a7b26704bf867a1262df358623bf5edf' 
* commit 'd5c62122a7b26704bf867a1262df358623bf5edf':
  Move av_reverse table to libavcodec

Conflicts:
	libavcodec/asvenc.c
	libavcodec/vble.c
	libavutil/common.h
	libavutil/mathematics.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2012-10-13 14:35:42 +02:00
Diego Biurrun
d5c62122a7 Move av_reverse table to libavcodec 
It is only used in that library.
 2012-10-12 20:39:18 +02:00
Michael Niedermayer
bff2afb3e9 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  x86: dsputil: Only compile motion_est code when encoders are enabled
  mem: fix typo in check for __ICC
  fate: mp3: drop redundant CMP setting
  rtp: Depacketization of JPEG (RFC 2435)
  Rename ff_put_string to avpriv_put_string
  mjpeg: Rename some symbols to avpriv_* instead of ff_*
  yadif: cosmetics

Conflicts:
	Changelog
	libavcodec/mjpegenc.c
	libavcodec/x86/Makefile
	libavfilter/vf_yadif.c
	libavformat/version.h
	libavutil/mem.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2012-09-10 14:06:20 +02:00