T

Kevin Mark d32a6c36e4 libavfilter/scale2ref: Maintain main input's DAR

The scale2ref filter will now maintain the DAR of the main input and
not the DAR of the reference input. This previous behavior was deemed
counterintuitive for most (all?) use-cases.

Before:
scale2ref=iw/4:ow/mdar
in  w:320 h:240 fmt:rgb24 sar:1/1
ref w:640 h:360 fmt:rgb24 sar:1/1
out w:160 h:120 fmt:rgb24 sar:4/3 flags:0x2
SAR: ((120 * 640) / (160 * 360)) * (1 / 1) = 4 / 3
DAR: (160 / 120) * (4 / 3) = 16 / 9
(main out now same DAR as ref)

Now:
scale2ref=iw/4:ow/mdar
in  w:320 h:240 fmt:rgb24 sar:1/1
ref w:640 h:360 fmt:rgb24 sar:1/1
out w:160 h:120 fmt:rgb24 sar:1/1 flags:0x2
SAR: ((120 * 320) / (160 * 240)) * (1 / 1) = 1 / 1
DAR: (160 / 120) * (1 / 1) = 4 / 3
(main out same DAR as main in)

The scale2ref FATE test has also been updated.

Signed-off-by: Kevin Mark <kmark937@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

2017-07-04 15:09:10 +02:00

compat

compat/cuda: make cuvidGetDecoderCaps optional

2017-06-01 12:39:06 +02:00

doc

avfomat/hlsenc: support fmp4 format in hls

2017-07-03 20:20:44 +08:00

ffbuild

build: Allow generating dependencies as a side-effect of assembling

2017-06-21 17:00:29 -03:00

libavcodec

avcodec/alsdec: fix some undefined shifts

2017-07-04 09:24:54 +02:00

libavdevice

Use AVOnce as a static variable consistently

2017-05-22 12:36:32 +02:00

libavfilter

libavfilter/scale2ref: Maintain main input's DAR

2017-07-04 15:09:10 +02:00

libavformat

avfomat/hlsenc: support fmp4 format in hls

2017-07-03 20:20:44 +08:00

libavresample

build: Generalize yasm/nasm-related variable names

2017-06-21 17:00:29 -03:00

libavutil

lavu/cpu: disable MMX warning on non x86 platforms

2017-06-29 18:00:58 +02:00

libpostproc

Merge commit '92db5083077a8b0f8e1050507671b456fd155125'

2017-05-04 19:59:30 -03:00

libswresample

libswresample/swresample: remove obsolete code

2017-06-27 23:21:53 +02:00

libswscale

build: Generalize yasm/nasm-related variable names

2017-06-21 17:00:29 -03:00

presets

presets: remove moldering iPod presets

2014-06-17 16:15:04 -08:00

tests

libavfilter/scale2ref: Maintain main input's DAR

2017-07-04 15:09:10 +02:00

tools

build: Generalize yasm/nasm-related variable names

2017-06-21 17:00:29 -03:00

.gitattributes

fate: add SCC test

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

.gitignore

build: add support for building .cu files via nvcc

2017-05-15 11:46:50 +02:00

.travis.yml

build: Prefer NASM assembler over YASM

2017-06-21 17:00:30 -03:00

Changelog

dxva: add support for new dxva2 and d3d11 hwaccel APIs

2017-06-27 18:05:02 +02:00

cmdutils_opencl.c

cmdutils_opencl: Fix read of uinitialized cl_mem

2017-05-11 13:02:12 +02:00

cmdutils.c

avformat, ffmpeg: deprecate old rotation API

2017-03-27 13:20:27 +02:00

cmdutils.h

Merge commit '122de16dd8108a59a55d30543c9f28b5f61b02d1'

2017-05-05 14:04:30 +02:00

configure

hwcontext_d3d11va: add option to enable debug mode

2017-06-27 18:05:02 +02:00

CONTRIBUTING.md

Add CONTRIBUTING.md

2016-09-18 10:02:13 +01:00

COPYING.GPLv2

…

COPYING.GPLv3

Add configure option to upgrade (L)GPL to version 3.

2009-06-05 11:04:03 +00:00

COPYING.LGPLv2.1

cosmetics: Delete empty lines at end of file.

2012-02-09 12:26:45 +01:00

COPYING.LGPLv3

Add configure option to upgrade (L)GPL to version 3.

2009-06-05 11:04:03 +00:00

CREDITS

CREDITS: redirect to Git log, remove current outdated content

2013-01-31 18:02:52 +01:00

ffmpeg_cuvid.c

ffmpeg_cuvid: adapt for recent filter graph initialization changes

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

ffmpeg_filter.c

ffmpeg: Support setting the hardware device to use when filtering

2017-06-14 22:27:07 +01:00

ffmpeg_hw.c

avconv_hw: Free device on initialisation failure

2017-06-18 17:07:25 +01:00

ffmpeg_opt.c

dxva: add support for new dxva2 and d3d11 hwaccel APIs

2017-06-27 18:05:02 +02:00

ffmpeg_qsv.c

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

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

ffmpeg_videotoolbox.c

ffmpeg_videotoolbox: fix usage of av_get_codec_tag_string()

2017-03-29 14:49:29 +02:00

ffmpeg.c

ffmpeg: Flush output BSFs when encode reaches EOF

2017-06-24 15:23:30 +01:00

ffmpeg.h

dxva: add support for new dxva2 and d3d11 hwaccel APIs

2017-06-27 18:05:02 +02:00

ffplay.c

Merge commit '122de16dd8108a59a55d30543c9f28b5f61b02d1'

2017-05-05 14:04:30 +02:00

ffprobe.c

ffprobe: Use pixdesc API to provide color space names

2017-06-05 12:18:27 -04:00

ffserver_config.c

ffserver_config: Check for failure to allocate FFServerIPAddressACL

2016-12-22 19:23:08 +01:00

ffserver_config.h

ffsrever: Make the status page bitexact if any stream is bitexact

2016-11-29 19:26:26 +01:00

ffserver.c

Merge commit '122de16dd8108a59a55d30543c9f28b5f61b02d1'

2017-05-05 14:04:30 +02:00

INSTALL.md

INSTALL: add markdown syntax

2014-05-28 22:38:38 +02:00

LICENSE.md

Merge commit '4fef648d10bf3bcfd4b8fa5755c1128966a2427c'

2017-03-15 22:07:47 +01:00

MAINTAINERS

MAINTAINERS: Add Manojkumar Bhosale for MIPS, remove myself.

2017-06-08 01:25:15 +02:00

Makefile

dxva: add support for new dxva2 and d3d11 hwaccel APIs

2017-06-27 18:05:02 +02:00

README.md

Add CONTRIBUTING.md

2016-09-18 10:02:13 +01:00

RELEASE

Bump minor versions for master after release/3.3 branchpoint

2017-03-31 13:21:06 +02:00

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.