mirror of https://github.com/FFmpeg/FFmpeg.git synced 2026-06-19 19:03:00 +02:00

T

James Almer e2b7ae4b19 avutil/md5: fix misaligned reads

This makes ubsan happy and also considerably increases performance on
big endian systems.

Tested on an IBM POWER7 3.55 GHz

Before:

2.24user 0.14system 0:02.39elapsed 99%CPU (0avgtext+0avgdata 2624maxresident)k
2.26user 0.11system 0:02.38elapsed 99%CPU (0avgtext+0avgdata 2688maxresident)k
2.23user 0.15system 0:02.38elapsed 99%CPU (0avgtext+0avgdata 2624maxresident)k
2.25user 0.12system 0:02.38elapsed 100%CPU (0avgtext+0avgdata 2624maxresident)k
2.20user 0.15system 0:02.36elapsed 99%CPU (0avgtext+0avgdata 2624maxresident)k

After:

1.86user 0.13system 0:02.00elapsed 99%CPU (0avgtext+0avgdata 2624maxresident)k
1.89user 0.11system 0:02.01elapsed 99%CPU (0avgtext+0avgdata 2624maxresident)k
1.85user 0.14system 0:02.00elapsed 99%CPU (0avgtext+0avgdata 2624maxresident)k
1.84user 0.15system 0:01.99elapsed 99%CPU (0avgtext+0avgdata 2624maxresident)k
1.89user 0.13system 0:02.02elapsed 99%CPU (0avgtext+0avgdata 2688maxresident)k

Tested-by: Nicolas George <george@nsup.org>
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>

2017-03-03 13:36:49 -03:00

compat

compat/cuda: fix ulong size on cygwin

2017-03-01 12:08:34 +01:00

doc

ffmpeg: restructure sending EOF to filters

2017-03-03 08:45:43 +01:00

libavcodec

avcodec/vp3: Do not return random positive values but the buf size

2017-03-03 17:17:53 +01:00

libavdevice

avdevice/decklink_dec: remove AVFMT_RAWPICTURE

2017-02-26 22:47:33 +01:00

libavfilter

avfilter/aeval: trim last frame's number of samples to match requested duration

2017-02-25 19:53:14 +01:00

libavformat

lavf/matroska: Support codec ID V_FFV1 for demuxing.

2017-03-03 02:04:34 +01:00

libavresample

…

libavutil

avutil/md5: fix misaligned reads

2017-03-03 13:36:49 -03:00

libpostproc

…

libswresample

lswr/rematrix: Remove an aggressive loop optimization.

2017-02-25 18:53:34 +01:00

libswscale

swscale: add P016 input support

2017-02-01 14:29:11 -08:00

presets

…

tests

ffmpeg: init filtergraphs only after we have a frame on each input

2017-03-03 08:45:43 +01:00

tools

tools/target_dec_fuzzer: Fix misaligned read

2017-02-24 14:12:13 +01:00

.gitattributes

fate: add SCC test

2017-01-27 17:06:42 +01:00

.gitignore

…

.travis.yml

…

arch.mak

…

Changelog

avcodec: add ClearVideo decoder

2017-03-02 11:39:54 +01:00

cmdutils_common_opts.h

…

cmdutils_opencl.c

…

cmdutils.c

…

cmdutils.h

…

common.mak

…

configure

lavfi: Add VAAPI deinterlacer

2017-02-23 22:08:26 +00:00

CONTRIBUTING.md

…

COPYING.GPLv2

…

COPYING.GPLv3

…

COPYING.LGPLv2.1

…

COPYING.LGPLv3

…

CREDITS

…

ffmpeg_cuvid.c

ffmpeg_cuvid: adapt for recent filter graph initialization changes

2017-03-03 08:45:43 +01:00

ffmpeg_dxva2.c

…

ffmpeg_filter.c

ffmpeg: properly cleanup filter graph on init failure

2017-03-03 08:45:43 +01:00

ffmpeg_opt.c

ffmpeg: init filtergraphs only after we have a frame on each input

2017-03-03 08:45:43 +01:00

ffmpeg_qsv.c

ffmpeg: init filtergraphs only after we have a frame on each input

2017-03-03 08:45:43 +01:00

ffmpeg_vaapi.c

ffmpeg_vaapi: Always set hwaccel_ctx, so it gets properly cleaned up on error

2017-02-05 15:13:15 +00:00

ffmpeg_vdpau.c

…

ffmpeg_videotoolbox.c

…

ffmpeg.c

ffmpeg: delay processing of subtitles before filters are initialized

2017-03-03 08:45:43 +01:00

ffmpeg.h

ffmpeg: delay processing of subtitles before filters are initialized

2017-03-03 08:45:43 +01:00

ffplay.c

ffplay: change keyboard volume control to logarithmic

2017-02-08 22:36:42 +01:00

ffprobe.c

…

ffserver_config.c

…

ffserver_config.h

…

ffserver.c

…

INSTALL.md

…

library.mak

…

LICENSE.md

…

MAINTAINERS

MAINTAINERS: Add Rodger Combs to ffmpeg-security

2017-02-28 01:13:52 +01:00

Makefile

Makefile: Clean compat/atomics/pthread subdirectory.

2017-03-01 13:43:03 +01:00

README.md

…

RELEASE

…

version.sh

…

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.