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Daniel Verkamp e856ac2373 avcodec/msrledec: implement vertical offset in 4-bit RLE 
The delta escape (2) is supposed to work the same in 4-bit RLE as in
8-bit RLE.  This is documented in the MSDN Bitmap Compression page:
https://msdn.microsoft.com/en-us/library/windows/desktop/dd183383(v=vs.85).aspx

The unchecked modification of line is safe, since the loop condition
(line >= 0) will check it before any pixel data is written.

Fixes ticket #5153 (output now matches ImageMagick for the provided sample).

Signed-off-by: Daniel Verkamp <daniel@drv.nu>
2016-11-29 10:57:49 +01:00
compat avcodec/cuvid: Add support for P010/P016 as an output surface format 2016-11-22 10:09:30 -08:00
doc vf_colorspace: Forbid odd dimensions 2016-11-28 11:24:09 -05:00
libavcodec avcodec/msrledec: implement vertical offset in 4-bit RLE 2016-11-29 10:57:49 +01:00
libavdevice Merge commit '0b1bd1b2057d41fd0ccba7317911c484a50f9207' 2016-11-18 10:20:14 +01:00
libavfilter vf_colorspace: Forbid odd dimensions 2016-11-28 11:24:09 -05:00
libavformat avformat/rmenc: Check framerate before storing 2016-11-27 23:28:23 +01:00
libavresample Bump minor versions after 3.2 branchpoint to seperate release 2016-10-26 20:52:42 +02:00
libavutil softfloat: decrease MIN_EXP to cover full float range 2016-11-25 01:23:48 +01:00
libpostproc Bump minor versions after 3.2 branchpoint to seperate release 2016-10-26 20:52:42 +02:00
libswresample swresample/soxr: fix invalid use of linear_interp 2016-11-26 05:52:24 +07:00
libswscale swscale/options: Use AV_OPT_TYPE_PIXEL_FMT 2016-11-20 13:00:22 +01:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests tests: Fix running ffserver under qemu 2016-11-28 23:50:01 +01:00
tools tools: add loudnorm script example to use loudnorm 2016-11-11 19:22:52 +01:00
.gitattributes Treat all '*.pnm' files as non-text file 2014-11-28 17:52:43 -05:00
.gitignore Merge commit '6641819feedb086ebba3d2be89b8d33980f367e1' 2016-06-26 15:43:05 +02:00
.travis.yml Merge commit 'eda183287489b2c705843aa373a19c4e46fb2fec' 2015-11-22 17:12:24 +00:00
arch.mak mips: rename mipsdspr1 to mipsdsp 2015-12-04 02:35:42 +01:00
Changelog vc1dec: support multiple slices in frame coded images with hwaccel 2016-11-26 13:11:32 +01:00
cmdutils_common_opts.h cmdutils: add show_demuxers and show_muxers 2016-11-08 01:56:31 +01:00
cmdutils_opencl.c all: use FFDIFFSIGN to resolve possible undefined behavior in comparators 2015-11-03 16:28:30 -05:00
cmdutils.c cmdutils: remove duplicate windows.h include 2016-11-16 15:06:16 +01:00
cmdutils.h cmdutils: add show_demuxers and show_muxers 2016-11-08 01:56:31 +01:00
common.mak Merge commit 'c5fd4b50610f62cbb3baa4f4108139363128dea1' 2016-06-27 19:39:46 +02:00
configure lavfi/f_ebur128: relicense to LGPL 2016-11-27 20:46:20 +01:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
ffmpeg_cuvid.c doc: fix spelling errors 2016-10-21 23:58:47 +02:00
ffmpeg_dxva2.c Merge commit '18c506e9e6e8df8b1d496d093077b8240ea68c28' 2016-06-26 15:34:01 +02:00
ffmpeg_filter.c ffmpeg_filter: fix several logic failures 2016-11-24 16:27:55 +01:00
ffmpeg_opt.c ffmpeg_opt: Fix starttime with ffm in bitexact mode 2016-11-28 17:15:31 +01:00
ffmpeg_qsv.c ffmpeg_qsv: Fix hwaccel transcoding 2016-11-13 17:49:48 +00:00
ffmpeg_vaapi.c ffmpeg_vaapi: fix choice of decoder_format 2016-09-29 01:23:52 +02:00
ffmpeg_vdpau.c Merge commit 'f72db3f2f3a8c83a4f5dede8fa03434b2bf676c6' 2016-06-26 15:29:39 +02:00
ffmpeg_videotoolbox.c ffmpeg/videotoolbox: protect UTGetOSTypeFromString on both VDA and VT 2015-10-15 10:22:31 +02:00
ffmpeg.c ffmpeg: factor out sending frame to filters 2016-11-18 20:23:58 +01:00
ffmpeg.h Merge commit '50722b4f0cbc5940e9e6e21d113888436cc89ff5' 2016-11-13 15:33:39 +01:00
ffplay.c ffplay: allow fallback to software renderer 2016-11-20 23:38:06 +01:00
ffprobe.c ffprobe: fix crash in case -of is specified with an empty string 2016-11-17 20:28:45 +01:00
ffserver_config.c ffserver: Remove use of AVStream as a intermediate to store parameters 2016-11-28 22:45:28 +01:00
ffserver_config.h ffserver: Remove use of AVStream as a intermediate to store parameters 2016-11-28 22:45:28 +01:00
ffserver.c ffserver: Remove last use of AVStream size 2016-11-28 22:45:38 +01:00
INSTALL.md INSTALL: add markdown syntax 2014-05-28 22:38:38 +02:00
library.mak Merge commit 'c5fd4b50610f62cbb3baa4f4108139363128dea1' 2016-06-27 19:39:46 +02:00
LICENSE.md lavfi/f_ebur128: relicense to LGPL 2016-11-27 20:46:20 +01:00
MAINTAINERS MAINTAINERS: Add Vittorio to "Developers with git write access who are currently not maintaining any specific part" 2016-11-25 02:07:43 +01:00
Makefile Merge commit '6641819feedb086ebba3d2be89b8d33980f367e1' 2016-06-26 15:43:05 +02:00
README.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
RELEASE RELEASE: Update for past 3.2 branch 2016-10-26 20:52:43 +02:00
version.sh version.sh: Fix spurious rebuilds. 2016-03-10 09:53:10 +01:00

README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

  • libavcodec provides implementation of a wider range of codecs.
  • libavformat implements streaming protocols, container formats and basic I/O access.
  • libavutil includes hashers, decompressors and miscellaneous utility functions.
  • libavfilter provides a mean to alter decoded Audio and Video through chain of filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.

Tools

  • ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
  • ffplay is a minimalistic multimedia player.
  • ffprobe is a simple analysis tool to inspect multimedia content.
  • ffserver is a multimedia streaming server for live broadcasts.
  • Additional small tools such as aviocat, ismindex and qt-faststart.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Coding examples are available in the doc/examples directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process and will be ignored.