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Christophe Gisquet e652f69b35 x86: simple_idct10_template: fix overflow in pass

When the input of a pass has 15 or 16 bits of precision (in particular
the column pass), the addition of a bias to W4 may lead to overflows
in the input to pmaddwd.

This requires postponing the adding of the bias to after the first
butterfly. To do so, the fact that m15, unused although zeroed, is
exploited. In case the pass is safe, an address can be directly used,
and the number of xmm regs can be decreased. Otherwise, the 32bits bias
is loaded into it.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

2015-10-13 12:51:10 +02:00

compat

Merge commit '2830bce47e2eb29c76202f19017031ddc1f95dd3'

2015-10-10 09:45:44 +02:00

doc

doc/filters: s/nb_inputs/inputs for stack filters

2015-10-12 10:56:13 -08:00

libavcodec

x86: simple_idct10_template: fix overflow in pass

2015-10-13 12:51:10 +02:00

libavdevice

avdevice/libdc1394: add const to suppress "assignment discards const qualifier from pointer target type" warnings

2015-09-20 22:12:37 +02:00

libavfilter

avfilter/af_sidechaincompress: replace FFABS with fabs

2015-10-13 09:37:18 +02:00

libavformat

avformat/webvttdec: Don't stop parsing on comments

2015-10-12 22:16:12 +02:00

libavresample

avresample: Remove an unused variable

2015-09-29 14:33:01 +02:00

libavutil

intmath: remove av_ctz.

2015-10-11 18:03:10 -04:00

libpostproc

Merge commit 'e88103a7f92cf27a2868b50acc8a9912f6088249'

2015-09-05 21:35:46 +02:00

libswresample

doc/resampler, swresample/options: use proper capitalization

2015-10-10 20:49:54 +02:00

libswscale

doc/scaler, swscale/options: use proper capitalization

2015-10-10 19:32:56 +02:00

presets

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tests

fate: add 10bits YUV4:2:2 dnxhd test

2015-10-13 04:04:02 +02:00

tools

Merge commit '87e5d8d78cf08b54b4a9e7cbaeff89f8c1d91b78'

2015-09-07 12:27:21 +02:00

.gitattributes

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.gitignore

gitignore: ignore object file temporaries

2015-10-10 20:30:41 +02:00

.travis.yml

Merge commit '1e0b8bf0b3b3b4247fb21e9839af342ae879607c'

2015-09-12 13:31:22 +02:00

arch.mak

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Changelog

AAC encoder: Extensive improvements

2015-10-11 17:29:50 -03:00

cmdutils_common_opts.h

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cmdutils_opencl.c

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cmdutils.c

cmdutils: silence unused warnings under --disable-swscale, --disable-swresample

2015-10-03 19:26:09 +02:00

cmdutils.h

cmdutils: remove sws_opts usage, simplify code

2015-08-08 16:51:25 +02:00

common.mak

Merge commit '3ae0e721c7b6e0483801b9039b3d140e3b68b7f5'

2015-07-22 16:30:37 +02:00

configure

configure: fix configure when using gcc

2015-10-11 13:25:13 -04:00

COPYING.GPLv2

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COPYING.GPLv3

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COPYING.LGPLv2.1

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COPYING.LGPLv3

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CREDITS

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ffmpeg_dxva2.c

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ffmpeg_filter.c

Revert "Merge commit '8b830ee9a26d47b138f12a82085cdb372f407f1e'" (avconv: Do not try to configure filter outputs without streams)

2015-10-11 12:24:43 +02:00

ffmpeg_opt.c

Merge commit 'b5e4f393b6757629281f58c3f3f6d55ca522ab60'

2015-09-29 15:30:48 +02:00

ffmpeg_vdpau.c

ffmpeg_vdpau: Ignore decoder's max supported level

2015-08-16 15:02:33 -07:00

ffmpeg_videotoolbox.c

build: restore videotoolbox compilation on iOS

2015-10-09 10:59:31 +02:00

ffmpeg.c

ffmpeg: modify tty state when stderr is redirected

2015-10-11 17:41:15 -04:00

ffmpeg.h

ffmpeg: switch swscale option handling to AVDictionary similar to what the other subsystems use

2015-08-08 14:44:15 +02:00

ffplay.c

ffplay: eliminate stream_component_close forward declaration

2015-10-12 00:07:38 +02:00

ffprobe.c

ffprobe: use AV_OPT_TYPE_BOOL for writers options

2015-09-12 17:50:22 +02:00

ffserver_config.c

ffserver: fix line wrapping on function decls

2015-10-04 15:58:35 -07:00

ffserver_config.h

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ffserver.c

ffserver: avoid leaking pathname at exit

2015-10-04 22:31:22 -07:00

INSTALL.md

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library.mak

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LICENSE.md

avfilter: add rubberband wrapper

2015-09-20 19:54:57 +02:00

MAINTAINERS

avfilter/vf_chromakey: Add chromakey video filter

2015-09-23 18:10:14 +02:00

Makefile

avcodec: add new Videotoolbox hwaccel.

2015-08-03 10:12:10 +02:00

README.md

README: replace http with https

2015-10-06 13:27:29 +02:00

RELEASE

RELEASE: update to 2.8.git

2015-09-09 23:53:15 -03:00

version.sh

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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. Few developers follow pull requests so they will likely be ignored.

Languages

C 90.3%

Assembly 7.8%

Makefile 1.3%

C++ 0.2%

Objective-C 0.2%

Other 0.1%