ksvc / ffmpeg Goto Github PK

This project forked from ffmpeg/ffmpeg

mirror of git://source.ffmpeg.org/ffmpeg.git, with RTMP protocol extensions for H.265/HEVC powered by KSYUN.

License: Other

Makefile 1.28% C 90.47% C++ 0.96% Objective-C 0.26% Shell 0.08% Perl 0.02% Assembly 6.91% Verilog 0.01% Cuda 0.02% Roff 0.01%

ffmpeg's Introduction

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.

ffmpeg's People

Contributors

Stargazers

Watchers

Forkers

tonytonyfly lichens1 redstorm82 amkoxie qiank128 romatotti lonelygo yuwang1hao chundonglinlin khros heartflying samuelhehe yueyihua ansiny1234 wqq198906 robinyeeh abdallahnasir 15576684447 guoluming magic000 matishsiao kylehuang zhuxiaopinpcn jackok jerryzhou343 zhangysh wenganxiang lion117 toomwhite lzbgt wsyjwps1983 qilingping xwcsyedu yejinlei solomondong polarbear88 sunhaikuo sshb2019 chenqinghuan1 dwm97317 petercheng-dev haohao-zh szwghqq cmy11101001 realjune betterdazhang begin-know daijinqiu hero2000 jc511 mlfcjob janix520 feiqiu queena-zhq yaoxin19 coding13 asd1161575755 feixuezhang longtraveller linshangqiang v2ray-vpn ggxp2008 mgaosi mrzhanghw nulijiabei octocat9lee azureidea pubfork july1921 wangsan q751613511 ashzdw jiewang-2023 blademist jenfong gcm3651 jianwoo xiangxud sz-litao imalivegh sonnyhe sasan-p11 ancientwwy

ffmpeg's Issues

有没有哪位好心人编译个windows版本的发上来啊

实在是不懂怎么编译成windows版本的有木有哪位好心人帮忙编译一下

Faster process possible?

Was anyone able to have faster porcessing with FFMPEG?
I have a bunch of GPU but it is using very little, and it is being VERY SLOW at making a video out of frames I collected.
Any insignt would be appreciated.
thanks

可以把h264/h265的mp4文件转为h265的flv文件吗？

可以的话命令是什么？

opencv无法打开rtmp格式的h265视频流

这个有解决办法吗
[ERROR:1] global /tmp/pip-req-build-hwenbn4e/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp (1077) open Could not find decoder for codec_id=0
[ERROR:1] global /tmp/pip-req-build-hwenbn4e/opencv/modules/videoio/src/cap_ffmpeg_impl.hpp (1109) open VIDEOIO/FFMPEG: Failed to initialize VideoCapture

编译出错 use of undeclared identifier 'x264_bit_depth'

libavcodec/libx264.c:282:9: error: use of undeclared identifier 'x264_bit_depth'
if (x264_bit_depth > 8)
^
libavcodec/libx264.c:892:9: error: use of undeclared identifier 'x264_bit_depth'
if (x264_bit_depth == 8)
^
libavcodec/libx264.c:894:14: error: use of undeclared identifier 'x264_bit_depth'
else if (x264_bit_depth == 9)
^
libavcodec/libx264.c:896:14: error: use of undeclared identifier 'x264_bit_depth'
else if (x264_bit_depth == 10)

use of undeclared identifier 'x264_bit_depth'

ffplay无法播放hevcpush的rtmp流

@fpzeng 您好，我参考《H.265 RTMP推流使用指南》上的方法，用libx265推了一个rtmp流，但ffplay播放时报错
[AVBSFContext @ 0x7fd6540b1f20] No start code is found. 0B f=0/0
rtmp://192.168.1.100/live/h265: could not find codec parameters

但若用libx264推流就没有问题。RTMP服务器我用的是nginx-rtmp-module, ffplay用的金山云ffmpeg编译的。另外，我还试了下ks-webplayer，也无法播放h265的rtmp流。请教下这该怎么解决呢？

万分感谢！

Could u provide release bin ?

Hi , guys.
could u provide release bin which could directly run on windows like ffmpeg.exe ffprobe.exe ?

生成ffplay,ffmpeg时链接失败

LD ffplay_g
LD ffmpeg_g
Undefined symbols for architecture x86_64:
"_avpriv_dnxhd_get_frame_size", referenced from:
_dnxhd_parse in libavcodec.a(dnxhd_parser.o)
Undefined symbols for architecture x86_64:
"_avpriv_dnxhd_get_frame_size", referenced from:
_dnxhd_parse in libavcodec.a(dnxhd_parser.o)
"_ff_dnxhd_cid_table", referenced from:
_dnxhd_parse in libavcodec.a(dnxhd_parser.o)
"_ff_dnxhd_cid_table", referenced from:
_dnxhd_parse in libavcodec.a(dnxhd_parser.o)
"_ff_dnxhd_get_cid_table", referenced from:
_dnxhd_parse in libavcodec.a(dnxhd_parser.o)
"_ff_dnxhd_get_cid_table", referenced from:
_dnxhd_parse in libavcodec.a(dnxhd_parser.o)
ld: symbol(s) not found for architecture x86_64
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [ffplay_g] Error 1

金山云ffmpeg对视频流按帧截图

hi，您们
麻烦确认一下，金山云FFmpeg是不是不支持对视频流进行截图的啊。
当进行截图命令：
./ffmpeg -i /root/gb_play_34020001001327000200_34020001001327000201.flv -ss 10 -y -f image2 -vframes 100 /root/imgs/img-%03d.jpg
提示：
[NULL @ 0x13682c0] Requested output format 'image2' is not a suitable output format

请问有其他解决方案么，可以支持H265视频流的截图

支持FLV H265的patch编译遇到了问题

https://github.com/ksvc/FFmpeg/wiki/hevcpush

zexudeMBP:FFmpeg zexu$ make j8
make: *** No rule to make target `j8'. Stop.

平台：MAC OS