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Ganesh Ajjanagadde 16d4c28cbb avcodec/mpegaudio_tablegen: speed up dynamic table creation

This does some miscellaneous stuff mainly avoiding the usage of pow to
achieve significant speedups. This is not speed critical, but is
unnecessary latency and cycles wasted for a user.

All tables tested and are identical to the old ones
(bit-exact even in floating point case).

Sample benchmark (x86-64, Haswell, GNU/Linux):
old:
102329530 decicycles in mpegaudio_tableinit,       1 runs,      0 skips

new:
34111900 decicycles in mpegaudio_tableinit,       1 runs,      0 skips

Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

2015-12-01 19:05:19 -05:00

compat

os2threads: Add pthread_once()

2015-11-12 22:31:46 +01:00

doc

avfilter/vf_histogram: remove deprecated stuff

2015-12-01 21:55:13 +01:00

libavcodec

avcodec/mpegaudio_tablegen: speed up dynamic table creation

2015-12-01 19:05:19 -05:00

libavdevice

avdevice/dshow_enummediatypes: check return of av_malloc

2015-11-06 09:36:57 -05:00

libavfilter

avfilter/vf_shuffleframes: Assert that the case of an uninitialized ret does not occur

2015-12-01 22:00:25 +01:00

libavformat

avformat/dump: Fix integer overflow in av_dump_format()

2015-12-01 13:26:03 +01:00

libavresample

Merge commit 'e2854e731f843906d9a9a5b882bed872341999fd'

2015-11-10 18:07:41 +01:00

libavutil

avutil/tablegen: add tablegen libm compatibility shims

2015-12-01 19:05:19 -05:00

libpostproc

Merge commit 'e88103a7f92cf27a2868b50acc8a9912f6088249'

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

libswresample

swresample/resample: remove redundant L for floating literal

2015-11-15 10:26:43 -05:00

libswscale

swscale/arm: add ff_nv{12,21}_to_{argb,rgba,abgr,bgra}_neon

2015-11-23 14:47:12 +01:00

presets

presets: remove moldering iPod presets

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

tests

AAC encoder: make pe.min a local minimum

2015-11-29 15:03:45 -03:00

tools

patcheck: Fix false detection of 'mergeable calls' when line is removed

2015-11-23 00:34:14 +01:00

.gitattributes

Treat all '*.pnm' files as non-text file

2014-11-28 17:52:43 -05:00

.gitignore

gitignore: ignore object file temporaries

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

.travis.yml

Merge commit 'eda183287489b2c705843aa373a19c4e46fb2fec'

2015-11-22 17:12:24 +00:00

arch.mak

use mmi instead of loongson3 as simd-optimization flag

2015-07-07 03:46:57 +02:00

Changelog

Merge commit '4a0918cae6394e503b17c71f8f171b4a795eb849'

2015-11-29 15:49:31 +01:00

cmdutils_common_opts.h

opts: add list device sources/sinks options

2014-10-25 20:20:31 +02:00

cmdutils_opencl.c

all: use FFDIFFSIGN to resolve possible undefined behavior in comparators

2015-11-03 16:28:30 -05:00

cmdutils.c

all: use FFDIFFSIGN to resolve possible undefined behavior in comparators

2015-11-03 16:28:30 -05:00

cmdutils.h

cmdutils: remove sws_opts usage, simplify code

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

common.mak

Merge commit 'c1aac39eaccd32dc3b74ccfcce701d3d888fbc6b'

2015-10-14 13:54:50 +02:00

configure

avcodec/libdcadec: require first public release

2015-11-29 12:53:14 -03:00

COPYING.GPLv2

…

COPYING.GPLv3

…

COPYING.LGPLv2.1

…

COPYING.LGPLv3

…

CREDITS

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ffmpeg_dxva2.c

ffmpeg_dxva2: call GetDesktopWindow() in place of GetShellWindow()

2015-06-03 16:25:08 +02:00

ffmpeg_filter.c

ffmpeg_filter: remove redundant null ptr check

2015-11-11 01:51:52 +01:00

ffmpeg_opt.c

all: remove some casts of function pointer to void *

2015-10-24 15:14:59 -04:00

ffmpeg_qsv.c

Merge commit 'fb472e1a11a4e0caed2c3c91da01ea8e35d9e3f8'

2015-10-22 16:18:02 +02:00

ffmpeg_vdpau.c

ffmpeg_vdpau: Ignore decoder's max supported level

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

ffmpeg_videotoolbox.c

ffmpeg/videotoolbox: protect UTGetOSTypeFromString on both VDA and VT

2015-10-15 10:22:31 +02:00

ffmpeg.c

ffmpeg: fix -copy_prior_start 0 with -copyts and input -ss

2015-11-20 19:20:30 +01:00

ffmpeg.h

ffmpeg: Fixing typos and adding comments to fps code

2015-11-16 01:53:47 +01:00

ffplay.c

Replace remaining occurances of av_free_packet with av_packet_unref

2015-10-27 14:35:30 +01:00

ffprobe.c

ffprobe: add support for printing packet strings metadata as packet tags

2015-10-30 20:47:43 +01:00

ffserver_config.c

ffserver_config: check for INT_MIN before doing FFABS

2015-10-13 19:40:09 -04:00

ffserver_config.h

ffserver: Use singlejpeg muxer for jpeg

2015-06-08 03:36:22 +02:00

ffserver.c

ffserver: Clear avio context after closing it in rtp_new_av_stream()

2015-11-30 23:31:12 +01:00

INSTALL.md

INSTALL: add markdown syntax

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

library.mak

build: add LDLIBFLAGS

2015-07-08 14:35:02 +02:00

LICENSE.md

avfilter: add rubberband wrapper

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

MAINTAINERS

lavfi: remove astreamsync.

2015-11-07 16:43:36 +01:00

Makefile

Merge commit 'fb472e1a11a4e0caed2c3c91da01ea8e35d9e3f8'

2015-10-22 16:18:02 +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

version.sh: add note that ffversion.h is auto-generated

2015-10-25 10:14:44 -04:00

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

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