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avcodec/qsv : Added look ahead rate control mode

Reviewed-by: Ivan Uskov <>
Signed-off-by: Michael Niedermayer <>
latest commit 67e87f8050
@BobbleNablet BobbleNablet authored Michael Niedermayer committed
Failed to load latest commit information.
compat use a wrapper script to call MS link.exe to avoid mixing with /usr/bi…
doc doc/filters: mention all short names for vectorscope options
libavcodec avcodec/qsv : Added look ahead rate control mode
libavdevice avdevice/libdc1394: Make dc1394_frame_format and dc1394_frame_rate, s…
libavfilter avfilter/vf_vectorscope: make color mode more useful
libavformat avformat/segment: atomically update list if possible
libavresample x86inc: Drop SECTION_TEXT macro
libavutil Merge commit 'e23f84d9652474353d8bbc42787a56ec1991908f'
libpostproc avutil/x86/asm: rename REG_SP to REG_sp
libswresample swresample/swresample-test: Make layouts static const
libswscale swscale: Silence an unused variable warning
presets presets: remove moldering iPod presets
tests avfilter/vf_vectorscope: make color mode more useful
tools graph2dot: use avfilter_pad_get_name accessor function
.gitattributes Treat all '*.pnm' files as non-text file
.gitignore doc/examples: rename avio_list_dir -> avio_dir_cmd
COPYING.GPLv3 Add configure option to upgrade (L)GPL to version 3.
COPYING.LGPLv2.1 cosmetics: Delete empty lines at end of file.
COPYING.LGPLv3 Add configure option to upgrade (L)GPL to version 3.
CREDITS CREDITS: redirect to Git log, remove current outdated content
Changelog avfilter: add allrgb INSTALL: add markdown syntax avfilter/vf_removegrain: add x86 and x86_64 SSE2 functions
MAINTAINERS MAINTAINERS: add myself as an AAC encoder maintainer
Makefile avcodec: add new Videotoolbox hwaccel. README: add ffserver
RELEASE RELEASE: update to 2.7.git
arch.mak use mmi instead of loongson3 as simd-optimization flag
cmdutils.c ffmpeg: replace deprecated av_log_ask_for_sample with av_log
cmdutils.h cmdutils: remove sws_opts usage, simplify code
cmdutils_common_opts.h opts: add list device sources/sinks options
cmdutils_opencl.c OpenCL: Avoid potential buffer overflow in cmdutils_opencl.c
common.mak Merge commit '3ae0e721c7b6e0483801b9039b3d140e3b68b7f5'
configure configure: Do not let the webm muxer suggest external libraries.
ffmpeg.c ffmpeg: force 128k default audio bitrate if nothing is specified and …
ffmpeg.h ffmpeg: switch swscale option handling to AVDictionary similar to wha…
ffmpeg_dxva2.c ffmpeg_dxva2: call GetDesktopWindow() in place of GetShellWindow()
ffmpeg_filter.c lavfi: fix compilation with FF_API_OLD_FILTER_OPTS=0.
ffmpeg_opt.c Put remaining pieces of CODEC_FLAG_EMU_EDGE under FF_API_EMU_EDGE.
ffmpeg_vdpau.c ffmpeg_vdpau: Ignore decoder's max supported level
ffmpeg_videotoolbox.c avcodec: add new Videotoolbox hwaccel.
ffplay.c Put remaining pieces of CODEC_FLAG_EMU_EDGE under FF_API_EMU_EDGE.
ffprobe.c ffprobe: check av_asprintf() for failure
ffserver.c ffserver: cast PID to int64_t before printing
ffserver_config.c ffserver: use -b instead of -ab for setting audio bitrate.
ffserver_config.h ffserver: Use singlejpeg muxer for jpeg
library.mak build: add LDLIBFLAGS Print versions based on the last git tag for release bran…


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


  • 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.


  • 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.


The offline documentation is available in the doc/ directory.

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


Coding examples are available in the doc/examples directory.


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

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