ffmpeg - Tools for transcoding, streaming and playing of multimedia files
安裝
shell> sudo apt-get install ffmpeg
shell> ffmpeg -i input.mpg output.mp4
shell> ffmpeg -i input.mp4 -target ntsc-dvd output.mp4
shell> ffmpeg -i input.mp4 -ss 0 -t 10 output.mp4
shell> ffmpeg -i input.mp4 -ss 00:05:00 -t 00:55:00 output.mp4
ffmpeg2theora
ffmpeg
shell> ffplay file.mov
shell> ffplay rtmp://148.72.245.43:1935/mytv/live
shell> ffprobe -show_format -show_streams -print_format json foo.mov
ffmpeg version 2.8.10-0ubuntu0.16.04.1 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
Getting help:
-h -- print basic options
-h long -- print more options
-h full -- print all options (including all format and codec specific options, very long)
See man ffmpeg for detailed description of the options.
Print help / information / capabilities:
-L show license
-h topic show help
-? topic show help
-help topic show help
--help topic show help
-version show version
-buildconf show build configuration
-formats show available formats
-devices show available devices
-codecs show available codecs
-decoders show available decoders
-encoders show available encoders
-bsfs show available bit stream filters
-protocols show available protocols
-filters show available filters
-pix_fmts show available pixel formats
-layouts show standard channel layouts
-sample_fmts show available audio sample formats
-colors show available color names
-sources device list sources of the input device
-sinks device list sinks of the output device
-hwaccels show available HW acceleration methods
Global options (affect whole program instead of just one file:
-loglevel loglevel set logging level
-v loglevel set logging level
-report generate a report
-max_alloc bytes set maximum size of a single allocated block
-y overwrite output files
-n never overwrite output files
-ignore_unknown Ignore unknown stream types
-stats print progress report during encoding
-max_error_rate ratio of errors (0.0: no errors, 1.0: 100% error maximum error rate
-bits_per_raw_sample number set the number of bits per raw sample
-vol volume change audio volume (256=normal)
Per-file main options:
-f fmt force format
-c codec codec name
-codec codec codec name
-pre preset preset name
-map_metadata outfile[,metadata]:infile[,metadata] set metadata information of outfile from infile
-t duration record or transcode "duration" seconds of audio/video
-to time_stop record or transcode stop time
-fs limit_size set the limit file size in bytes
-ss time_off set the start time offset
-sseof time_off set the start time offset relative to EOF
-seek_timestamp enable/disable seeking by timestamp with -ss
-timestamp time set the recording timestamp ('now' to set the current time)
-metadata string=string add metadata
-target type specify target file type ("vcd", "svcd", "dvd", "dv" or "dv50" with optional prefixes "pal-", "ntsc-" or "film-")
-apad audio pad
-frames number set the number of frames to output
-filter filter_graph set stream filtergraph
-filter_script filename read stream filtergraph description from a file
-reinit_filter reinit filtergraph on input parameter changes
-discard discard
-disposition disposition
Video options:
-vframes number set the number of video frames to output
-r rate set frame rate (Hz value, fraction or abbreviation)
-s size set frame size (WxH or abbreviation)
-aspect aspect set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)
-bits_per_raw_sample number set the number of bits per raw sample
-vn disable video
-vcodec codec force video codec ('copy' to copy stream)
-timecode hh:mm:ss[:;.]ff set initial TimeCode value.
-pass n select the pass number (1 to 3)
-vf filter_graph set video filters
-ab bitrate audio bitrate (please use -b:a)
-b bitrate video bitrate (please use -b:v)
-dn disable data
Audio options:
-aframes number set the number of audio frames to output
-aq quality set audio quality (codec-specific)
-ar rate set audio sampling rate (in Hz)
-ac channels set number of audio channels
-an disable audio
-acodec codec force audio codec ('copy' to copy stream)
-vol volume change audio volume (256=normal)
-af filter_graph set audio filters
Subtitle options:
-s size set frame size (WxH or abbreviation)
-sn disable subtitle
-scodec codec force subtitle codec ('copy' to copy stream)
-stag fourcc/tag force subtitle tag/fourcc
-fix_sub_duration fix subtitles duration
-canvas_size size set canvas size (WxH or abbreviation)
-spre preset set the subtitle options to the indicated preset
shell> ffmpeg -i input.flac -acodec libmp3lame out.mp3
shell> find . -name "*.flac" -exec bash -c 'ffmpeg -i "{}" -y "${0/.flac}.wav"' {} \;
shell> ffmpeg -i video1.webm -vf "scale=400:-1,fps=10" out.gif
shell> ffmpeg -i input.gif -c:v libvpx -auto-alt-ref 0 out.webm
shell> ffmpeg -i input.mp4 -ss 00:00:00 -vframes 1 img.png
shell> ffmpeg -i input.mp4 -vf fps=1/60 img-%03d.png
shell> ffmpeg -codecs
shell> ffmpeg -protocols
shell> ffmpeg -i input.mp4 output.avi
shell> ffmpeg -i input.avi -r 24 output.avi
shell> ffmpeg -i input.avi -b:v 64k -bufsize 64k output.avi
shell> ffmpeg -f avfoundation -list_devices true -i ""
shell> ffmpeg -f avfoundation -i "0:0" out.avi
shell> ffmpeg -f avfoundation -pixel_format bgr0 -i "default:none" out.avi
shell> ffmpeg -f avfoundation -i "1" -vcodec libx264 -preset ultrafast -f flv rtmp://148.72.245.43:1935/mytv/live
shell> ffmpeg -re -i input.mp4 -c copy -f flv rtmp://148.72.245.43:1935/mytv/live
shell> ffmpeg -re -i input.mp4 -c copy -vcodec libx264 -f flv rtmp://148.72.245.43:1935/mytv/live
shell> ffmpeg -i rtmp://myserver/vod/sample -c copy output.flv
shell> ffmpeg -f avfoundation -video_size 1280x720 -framerate 30 -i "0" -vcodec libx264 -preset ultrafast -pixel_format yuyv422 -f flv rtmp://148.72.245.43:1935/mytv/live
shell> ffmpeg -f avfoundation -framerate 30 -i "1:0" \
> -f avfoundation -framerate 30 -video_size 1280x720 -i "0" \
> -vcodec libx264 -preset ultrafast \
> -filter_complex overlay=x=W-w-10:y=H-h-10 \
> -acodec libmp3lame -ac 1 -ar 44100 \
> -f flv rtmp://148.72.245.43:1935/mytv/live
shell> ffmpeg -i input.mp4 -filter_complex subtitles=sub.srt output.mp4
shell> ffmpeg -i input.mp4 -filter_complex subtitles=filename=sub.srt output.mp4
shell> ffmpeg -i input.mp4 -filter_complex subtitles=sub.srt:force_style='FontName=DejaVu Serif,PrimaryColour=&HAA00FF00' output.mp4
shell> ffmpeg -i input.mp4 -vf scale=640:360 output.mp4
shell> ffmpeg -i input.mp4 -i img.png -filter_complex overlay output.mp4
shell> ffmpeg -i input.mp4 -i img.png -filter_complex overlay=W-w:H-h out.mp4
shell> ffmpeg -i input.mp4 -i img.png -ss 0 -t 10 -filter_complex overlay=x=W-w-10:y=H-h-10 out.mp4
shell> ffmpeg -i input.mp4 -i img.png -vcodec libx264 -filter_complex overlay -f flv rtmp://127.0.0.1:1935/mytv/live
shell> ffmpeg -i input.mp4 -i img.png -vcodec libx264 -filter_complex overlay=x=W-w-10:y=H-h-10 -f flv rtmp://127.0.0.1:1935/mytv/live
shell> ffmpeg -i input.mp4 -i img.png -vcodec libx264 -preset ultrafast -filter_complex overlay output.mp4
-framerate 6
-video_size vga
-video_size hd720
-video_size 1280x720
-video_size hd1080
-video_size 1920x1080
-preset ultrafast
-preset veryslow
Real-Time Messaging Protocol.
-b:a 64k
-b:a 128k
-b:v 800k
-b:v 1000k
-c copy
-c:a aac
-c:a mp2
-c:a libfdk_aac
-c:v copy
-c:v libx264
-c:v libx265
-c:v libvpx-vp9
-q:v 10
-i input.mp4
-i /dev/sr0
-i input.flv
-i input.wav
-f avfoundation
-f lavfi
-f libcdio
-f openal
-f flv
-f caca
-f fbdev
-f xv
-f oss
-f alsa
-f x11grab
-f image2
-f live_flv
-f v4l2
-pix_fmt rgb24
-pix_fmt uyvy422
-pix_fmt bgra
-pix_fmt yuv420p
-s 640x480
-s 720x486
-r 24000/1001
-window_size 80x25
-window_size qcif
-video_size cif
-framerate 25
-framerate 10
-re
-pattern_type glob
-codec copy
-codec:v libtheora
-codec:a libfdk_aac
-codec:a libmp3lame
-acodec libfaac
-acodec libmp3lame
-acodec ac3_fixed
-acodec copy
-vcodec rawvideo
-vcodec libx264
-vcodec copy
-c copy
-minrate 4000k
-maxrate 4000k
-bufsize 1835k
rtmp://myserver/vod/sample
rtmp://148.72.245.43:1935/mytv/live
rtmp://username:password@myserver/
/dev/null
ultrafast
superfast
veryfast
faster
fast
medium
slow
slower
veryslow
placebo
img.jpeg
img.png
test.avi
foo.mpg
foo.mov
foo.avi
a.mov
b.mov
stereo.wav
h264.mp4
sub.txt
file.mov
video.mkv
hugefile.yuv
video1.webm
video2.webm
audio1.webm
audio2.webm
input.gif
input.ts
input.wav
input.avi
input.mp4
input.mxf
input.flac
input.mkv
input.mpg
test1.avi
test2.avi
in.avi
in.mkv
in.ogg
myfile.avi
mydivx.avi
myfile.flv
output.mkv
output.m4a
output.mp4
output.flv
output.avi
output.mov
out.flv
out.gif
out.h264
out.mkv
out.mov
out.mpg
out.mpeg
out.ogg
out.ts
out.ttf
out.wav
out.mp3
out.m2v
out.sha256
out.m3u8
out.md5
out1.ogg
out2.ogg
參考網站：
- ffmpeg
- ffmpeg
- https://ffmpeg.zeranoe.com/builds/
- https://www.ffmpeg.org/ffmpeg-devices.html
- https://www.ffmpeg.org/ffmpeg-all.html
- https://ffmpeg.org/ffmpeg-protocols.html
- https://ffmpeg.org/ffmpeg-utils.html
- https://ffmpeg.org/ffmpeg-filters.html#overlay-1
- http://manpages.ubuntu.com/manpages/xenial/man1/ffmpeg-codecs.1.html