virtualenv/FFmpeg
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Mirror of https://git.ffmpeg.org/ffmpeg.git
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1f642b99af
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jinbo 1f642b99af
avcodec/hevc: Add epel_uni_w_hv4/6/8/12/16/24/32/48/64 asm opt 
tests/checkasm/checkasm:           C       LSX     LASX
put_hevc_epel_uni_w_hv4_8_c:       9.5     2.2
put_hevc_epel_uni_w_hv6_8_c:       18.5    5.0     3.7
put_hevc_epel_uni_w_hv8_8_c:       30.7    6.0     4.5
put_hevc_epel_uni_w_hv12_8_c:      63.7    14.0    10.7
put_hevc_epel_uni_w_hv16_8_c:      107.5   22.7    17.0
put_hevc_epel_uni_w_hv24_8_c:      236.7   50.2    31.7
put_hevc_epel_uni_w_hv32_8_c:      414.5   88.0    53.0
put_hevc_epel_uni_w_hv48_8_c:      917.5   197.7   118.5
put_hevc_epel_uni_w_hv64_8_c:      1617.0  349.5   203.0

After this patch, the peformance of decoding H265 4K 30FPS 30Mbps
on 3A6000 with 8 threads improves 3fps (52fps-->55fsp).

Change-Id: If067e394cec4685c62193e7adb829ac93ba4804d
Reviewed-by: yinshiyou-hf@loongson.cn
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2024-01-12 23:35:40 +01:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
doc doc/APIchanges: document newly added buffersrc field 2024-01-11 07:05:55 +01:00
ffbuild riscv: test for assembler support 2023-12-08 17:21:09 +02:00
fftools fftools/ffplay_renderer: Add device selection support 2024-01-12 10:49:54 +08:00
libavcodec avcodec/hevc: Add epel_uni_w_hv4/6/8/12/16/24/32/48/64 asm opt 2024-01-12 23:35:40 +01:00
libavdevice all: Don't set AVClass.item_name to its default value 2023-12-22 15:12:33 +01:00
libavfilter avfilter/vsrc_testsrc: fix colorchart black stripe 2024-01-12 23:35:40 +01:00
libavformat avformat/psxstr: fix demuxing I/O error at EOF 2024-01-11 17:09:45 +01:00
libavutil avutil/hwcontext_vt: add pixel format map for full range YUV420P 2024-01-12 10:49:36 +08:00
libpostproc Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libswresample swr/swresample: avoid reapplication of firstpts 2023-12-18 15:47:04 +05:30
libswscale riscv: test for assembler support 2023-12-08 17:21:09 +02:00
presets
tests checkasm: Generalize crash handling 2024-01-11 14:48:53 +02:00
tools tools/target_dec_fuzzer: Adjust threshold for QPEG 2023-12-29 01:15:41 +01:00
.gitattributes
.gitignore
.mailmap mailmap: remap my email accounts 2023-11-03 20:57:49 +08:00
.travis.yml
Changelog avfilter: Add fsync filter 2024-01-05 09:29:05 +01:00
configure configure: remove Bitrig OS 2024-01-12 10:38:15 +08:00
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
INSTALL.md
LICENSE.md
MAINTAINERS MAINTAINERS: add my new PGP key 2024-01-10 23:07:28 -05:00
Makefile configure: Add a --disable-version-tracking option 2023-12-21 11:00:34 +02:00
README.md
RELEASE

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.