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Andreas Rheinhardt 57d305207a avcodec/aacenc_quantization: Deduplicate quantization functions 
Up until now, there were four copies of
quantize_and_encode_band_cost_(ZERO|[SU]QUAD|[SU]PAIR|ESC|NONE|NOISE|STEREO)
(namely in aaccoder.o, aacenc_is.o, aacenc_ltp.o, aacenc_pred.o).
As 43b378a0d3 says, this is meant to
enable more optimizations.

Yet neither GCC nor Clang performed such optimizations: The functions
in the aforementioned files are not optimized according to
the specifics of the calls in the respective file. Therefore
duplicating them is a waste of space; this commit therefore stops doing
so. The remaining copy is placed into aaccoder.c (which is the only
place where the "round to zero" variant of quantize_and_encode_band()
is used, so that this can be completely internal to aaccoder.c).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-08-05 03:28:45 +02:00
compat avfilter: add chromakey_cuda filter 2022-07-10 17:20:15 +02:00
doc lavu/pixfmt: Add packed 4:4:4 format 2022-08-03 14:09:46 -07:00
ffbuild ffbuild/common: Fix CPPFLAGS applied for compiling C++ files 2022-05-24 21:30:52 +02:00
fftools ffmpeg_opt: consider HW acceleration method when selecting decoder 2022-08-03 11:10:57 +08:00
libavcodec avcodec/aacenc_quantization: Deduplicate quantization functions 2022-08-05 03:28:45 +02:00
libavdevice avdevice/v4l2: fix leak of timefilter 2022-08-03 17:52:25 +08:00
libavfilter avfilter/vf_cropdetect: Remove set-but-unused variable 2022-07-30 22:14:26 +02:00
libavformat lavf/hevc: replace the unicode signal quotation with normal quotation 2022-08-05 00:58:49 +08:00
libavutil avcodec/loongarch/h264chroma, vc1dsp_lasx: Add wrapper for __lasx_xvldx 2022-08-05 02:59:58 +02:00
libpostproc Bump versions after 5.1 branch 2022-07-13 00:29:05 +02:00
libswresample Bump versions after 5.1 branch 2022-07-13 00:29:05 +02:00
libswscale swscale/rgb2rgb: Don't cast const away 2022-07-31 01:09:52 +02:00
presets
tests avcodec/flacdsp: Split encoder-only parts into a ctx of its own 2022-08-05 03:28:45 +02:00
tools tools/target_dec_fuzzer: set avctx->workaround_bugs flags 2022-07-26 09:15:16 -03:00
.gitattributes
.gitignore gitignore: add config_components.h 2022-03-17 18:35:41 -03:00
.mailmap
.travis.yml
Changelog lavc/vaapi: Declare support for decoding 8bit 4:4:4 content 2022-08-03 14:10:55 -07:00
configure avcodec/flacdsp: Split encoder-only parts into a ctx of its own 2022-08-05 03:28:45 +02:00
CONTRIBUTING.md
COPYING.GPLv2
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COPYING.LGPLv2.1
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INSTALL.md
LICENSE.md
MAINTAINERS MAINTAINERS: add myself as maintainer for LoongArch. 2022-06-08 18:29:30 +02:00
Makefile Makefile: Prompt for reconfigure on lavc/hwaccels.h modification 2022-07-01 00:34:38 +02:00
README.md
RELEASE RELEASE: update after 5.1 branch 2022-07-13 00:31:42 +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 means to alter decoded audio and video through a directed graph of connected 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.
  • 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.