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8cfbbd928c
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Ronald S. Bultje 8cfbbd928c get_bits: introduce safe bitreading to prevent overreads. 
When turned on, H264/CAVLC gets ~15% (CVPCMNL1_SVA_C.264) slower for
ultra-high-bitrate files, or ~2.5% (CVFI1_SVA_C.264) for lower-bitrate
files. Other codecs are affected to a lesser extent because they are
less optimized; e.g., VC-1 slows down by less than 1% (all on x86).
The patch generated 3 extra instructions (cmp, cmovae and mov) per
call to get_bits().

The performance penalty on ARM is within the error margin for most
files, up to 4% in extreme cases such as CVPCMNL1_SVA_C.264.

Based on work (for GCI) by Aneesh Dogra <lionaneesh@gmail.com>, and
inspired by patch in Chromium by Chris Evans <cevans@chromium.org>.
2011-12-17 14:03:41 +00:00
doc avconv: support stream specifiers in -metadata and -map_metadata 2011-12-16 21:12:53 +01:00
libavcodec get_bits: introduce safe bitreading to prevent overreads. 2011-12-17 14:03:41 +00:00
libavdevice build: move inclusion of subdir.mak to main subdir loop 2011-12-13 14:26:49 +00:00
libavfilter yadif: support 10bit YUV 2011-12-13 17:02:55 +01:00
libavformat mpegts: replace some magic numbers with the existing define 2011-12-16 11:45:36 +02:00
libavutil build: move inclusion of subdir.mak to main subdir loop 2011-12-13 14:26:49 +00:00
libpostproc build: move inclusion of subdir.mak to main subdir loop 2011-12-13 14:26:49 +00:00
libswscale swscale: add unscaled packed 16 bit per component endianess conversion 2011-12-16 01:41:33 +01:00
presets presets: spelling error in libvpx 1080p50_60 2011-10-22 00:28:56 +02:00
tests movenc: Rudimentary IODs support. 2011-12-15 14:06:13 -08:00
tools Replace all uses of av_close_input_file() with avformat_close_input(). 2011-12-12 20:34:38 +01:00
.gitignore Make a copy of ffmpeg under a new name -- avconv. 2011-08-12 13:27:30 +02:00
avconv.c avconv: support stream specifiers in -metadata and -map_metadata 2011-12-16 21:12:53 +01:00
avplay.c Replace all uses of av_close_input_file() with avformat_close_input(). 2011-12-12 20:34:38 +01:00
avprobe.c Replace all uses of av_close_input_file() with avformat_close_input(). 2011-12-12 20:34:38 +01:00
avserver.c Replace all uses of av_close_input_file() with avformat_close_input(). 2011-12-12 20:34:38 +01:00
Changelog v410 encoder and decoder 2011-12-13 23:34:24 +01:00
cmdutils_common_opts.h avtools: add -v as alias for -loglevel 2011-10-09 16:53:06 +01:00
cmdutils.c Add libavutil/mathematics.h #includes for INFINITY 2011-11-22 16:36:44 +00:00
cmdutils.h Fix a bunch of common typos. 2011-12-11 00:32:25 +01:00
common.mak build: remove unnecessary FFLDFLAGS variable 2011-07-11 11:39:04 +01:00
configure get_bits: introduce safe bitreading to prevent overreads. 2011-12-17 14:03:41 +00:00
COPYING.GPLv2 Rename COPYING.GPL --> COPYING.GPLv2 and COPYING.LGPL --> COPYING.LGPLv2.1. 2009-06-05 09:51:31 +00:00
COPYING.GPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
COPYING.LGPLv2.1 Rename COPYING.GPL --> COPYING.GPLv2 and COPYING.LGPL --> COPYING.LGPLv2.1. 2009-06-05 09:51:31 +00:00
COPYING.LGPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
CREDITS partially rename FFmpeg to Libav 2011-03-16 21:54:39 +01:00
Doxyfile doxy: change hue value to match our green 2011-12-09 04:20:41 +01:00
ffmpeg.c Fix a bunch of common typos. 2011-12-11 00:32:25 +01:00
INSTALL doc: clarify configure features 2011-04-07 02:54:12 +02:00
library.mak build: rename subdir.mak ---> library.mak 2011-12-13 23:34:22 +01:00
LICENSE cosmetics: fix dashed line length after 070c5d0 2011-03-28 09:53:40 +02:00
Makefile build: rename subdir.mak ---> library.mak 2011-12-13 23:34:22 +01:00
README cosmetics: fix dashed line length after 070c5d0 2011-03-28 09:53:40 +02:00
RELEASE Use the contents of RELEASE as version fallback instead of 'UNKNOWN' 2011-06-19 19:54:07 +02:00
version.sh Drop git- prefix from version labels 2011-06-19 19:41:23 +01:00

README 

Libav README
------------

1) Documentation
----------------

* Read the documentation in the doc/ directory.

2) Licensing
------------

* See the LICENSE file.