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doc: update documentation to use avconv
This commit is contained in:
Luca Barbato
parent
ca410b4eb0
commit
d5837d7fe9
@ -33,19 +33,19 @@ debug mode or a NoDaemon option is specified in the configuration
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file.
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This documentation covers only the streaming aspects of avserver /
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ffmpeg. All questions about parameters for ffmpeg, codec questions,
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etc. are not covered here. Read @file{ffmpeg-doc.html} for more
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avconv. All questions about parameters for avconv, codec questions,
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etc. are not covered here. Read @file{avconv.html} for more
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information.
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@section How does it work?
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avserver receives prerecorded files or FFM streams from some ffmpeg
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avserver receives prerecorded files or FFM streams from some avconv
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instance as input, then streams them over RTP/RTSP/HTTP.
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An avserver instance will listen on some port as specified in the
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configuration file. You can launch one or more instances of ffmpeg and
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configuration file. You can launch one or more instances of avconv and
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send one or more FFM streams to the port where avserver is expecting
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to receive them. Alternately, you can make avserver launch such ffmpeg
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to receive them. Alternately, you can make avserver launch such avconv
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instances at startup.
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Input streams are called feeds, and each one is specified by a <Feed>
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@ -107,11 +107,11 @@ LAME is important as it allows for streaming audio to Windows Media Player.
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Don't ask why the other audio types do not work.
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As a simple test, just run the following two command lines where INPUTFILE
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is some file which you can decode with ffmpeg:
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is some file which you can decode with avconv:
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@example
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./avserver -f doc/avserver.conf &
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./ffmpeg -i INPUTFILE http://localhost:8090/feed1.ffm
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./avconv -i INPUTFILE http://localhost:8090/feed1.ffm
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@end example
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At this point you should be able to go to your Windows machine and fire up
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@ -130,7 +130,7 @@ The same is true of AVI files.
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@section What happens next?
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You should edit the avserver.conf file to suit your needs (in terms of
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frame rates etc). Then install avserver and ffmpeg, write a script to start
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frame rates etc). Then install avserver and avconv, write a script to start
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them up, and off you go.
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@section Troubleshooting
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@ -138,13 +138,13 @@ them up, and off you go.
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@subsection I don't hear any audio, but video is fine.
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Maybe you didn't install LAME, or got your ./configure statement wrong. Check
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the ffmpeg output to see if a line referring to MP3 is present. If not, then
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the avconv output to see if a line referring to MP3 is present. If not, then
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your configuration was incorrect. If it is, then maybe your wiring is not
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set up correctly. Maybe the sound card is not getting data from the right
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input source. Maybe you have a really awful audio interface (like I do)
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that only captures in stereo and also requires that one channel be flipped.
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If you are one of these people, then export 'AUDIO_FLIP_LEFT=1' before
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starting ffmpeg.
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starting avconv.
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@subsection The audio and video loose sync after a while.
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@ -250,7 +250,7 @@ Use @file{configfile} instead of @file{/etc/avserver.conf}.
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@item -n
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Enable no-launch mode. This option disables all the Launch directives
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within the various <Stream> sections. Since avserver will not launch
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any ffmpeg instances, you will have to launch them manually.
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any avconv instances, you will have to launch them manually.
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@item -d
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Enable debug mode. This option increases log verbosity, directs log
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messages to stdout and causes avserver to run in the foreground
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@ -265,7 +265,7 @@ rather than as a daemon.
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@c man begin SEEALSO
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avconv(1), avplay(1), avprobe(1), the @file{ffmpeg/doc/avserver.conf}
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avconv(1), avplay(1), avprobe(1), the @file{avserver.conf}
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example and the Libav HTML documentation
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@c man end
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@ -132,8 +132,8 @@ libavcodec libraries. To see the list of available AVOptions, use the
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@option{-help} option. They are separated into two categories:
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@table @option
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@item generic
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These options can be set for any container, codec or device. Generic options are
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listed under AVFormatContext options for containers/devices and under
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These options can be set for any container, codec or device. Generic options
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are listed under AVFormatContext options for containers/devices and under
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AVCodecContext options for codecs.
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@item private
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These options are specific to the given container, device or codec. Private
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@ -144,14 +144,14 @@ For example to write an ID3v2.3 header instead of a default ID3v2.4 to
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an MP3 file, use the @option{id3v2_version} private option of the MP3
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muxer:
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@example
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ffmpeg -i input.flac -id3v2_version 3 out.mp3
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avconv -i input.flac -id3v2_version 3 out.mp3
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@end example
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All codec AVOptions are obviously per-stream, so the chapter on stream
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specifiers applies to them
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Note -nooption syntax cannot be used for boolean AVOptions, use -option
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0/-option 1.
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Note @option{-nooption} syntax cannot be used for boolean AVOptions,
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use @option{-option 0}/@option{-option 1}.
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Note2 old undocumented way of specifying per-stream AVOptions by prepending
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v/a/s to the options name is now obsolete and will be removed soon.
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@ -34,7 +34,7 @@ JPEG image. The individual frames can be extracted without loss,
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e.g. by
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@example
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ffmpeg -i ../some_mjpeg.avi -vcodec copy frames_%d.jpg
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avconv -i ../some_mjpeg.avi -c:v copy frames_%d.jpg
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@end example
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Unfortunately, these chunks are incomplete JPEG images, because
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@ -57,9 +57,9 @@ stream (carrying the AVI1 header ID and lacking a DHT segment) to
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produce fully qualified JPEG images.
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@example
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ffmpeg -i mjpeg-movie.avi -vcodec copy -vbsf mjpeg2jpeg frame_%d.jpg
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avconv -i mjpeg-movie.avi -c:v copy -vbsf mjpeg2jpeg frame_%d.jpg
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exiftran -i -9 frame*.jpg
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ffmpeg -i frame_%d.jpg -vcodec copy rotated.avi
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avconv -i frame_%d.jpg -c:v copy rotated.avi
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@end example
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@section mjpega_dump_header
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@ -42,10 +42,10 @@ specify card number or identifier, device number and subdevice number
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To see the list of cards currently recognized by your system check the
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files @file{/proc/asound/cards} and @file{/proc/asound/devices}.
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For example to capture with @file{ffmpeg} from an ALSA device with
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For example to capture with @command{avconv} from an ALSA device with
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card id 0, you may run the command:
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@example
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ffmpeg -f alsa -i hw:0 alsaout.wav
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avconv -f alsa -i hw:0 alsaout.wav
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@end example
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For more information see:
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@ -72,14 +72,14 @@ For more detailed information read the file
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Documentation/fb/framebuffer.txt included in the Linux source tree.
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To record from the framebuffer device @file{/dev/fb0} with
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@file{ffmpeg}:
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@command{avconv}:
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@example
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ffmpeg -f fbdev -r 10 -i /dev/fb0 out.avi
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avconv -f fbdev -r 10 -i /dev/fb0 out.avi
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@end example
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You can take a single screenshot image with the command:
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@example
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ffmpeg -f fbdev -vframes 1 -r 1 -i /dev/fb0 screenshot.jpeg
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avconv -f fbdev -frames:v 1 -r 1 -i /dev/fb0 screenshot.jpeg
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@end example
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See also @url{http://linux-fbdev.sourceforge.net/}, and fbset(1).
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@ -109,10 +109,10 @@ To list the JACK clients and their properties you can invoke the command
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@file{jack_lsp}.
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Follows an example which shows how to capture a JACK readable client
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with @file{ffmpeg}.
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with @command{avconv}.
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@example
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# Create a JACK writable client with name "ffmpeg".
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$ ffmpeg -f jack -i ffmpeg -y out.wav
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# Create a JACK writable client with name "libav".
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$ avconv -f jack -i libav -y out.wav
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# Start the sample jack_metro readable client.
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$ jack_metro -b 120 -d 0.2 -f 4000
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@ -123,11 +123,11 @@ system:capture_1
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system:capture_2
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system:playback_1
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system:playback_2
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ffmpeg:input_1
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libav:input_1
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metro:120_bpm
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# Connect metro to the ffmpeg writable client.
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$ jack_connect metro:120_bpm ffmpeg:input_1
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# Connect metro to the avconv writable client.
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$ jack_connect metro:120_bpm libav:input_1
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@end example
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For more information read:
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@ -145,10 +145,10 @@ The filename to provide to the input device is the device node
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representing the OSS input device, and is usually set to
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@file{/dev/dsp}.
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For example to grab from @file{/dev/dsp} using @file{ffmpeg} use the
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For example to grab from @file{/dev/dsp} using @command{avconv} use the
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command:
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@example
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ffmpeg -f oss -i /dev/dsp /tmp/oss.wav
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avconv -f oss -i /dev/dsp /tmp/oss.wav
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@end example
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For more information about OSS see:
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@ -248,10 +248,10 @@ The filename to provide to the input device is the device node
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representing the sndio input device, and is usually set to
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@file{/dev/audio0}.
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For example to grab from @file{/dev/audio0} using @file{ffmpeg} use the
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For example to grab from @file{/dev/audio0} using @command{avconv} use the
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command:
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@example
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ffmpeg -f sndio -i /dev/audio0 /tmp/oss.wav
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avconv -f sndio -i /dev/audio0 /tmp/oss.wav
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@end example
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@section video4linux and video4linux2
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@ -290,7 +290,7 @@ avplay -f video4linux2 /dev/video0
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# Grab and record the input of a video4linux2 device, autoadjust size,
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# frame rate value defaults to 0/0 so it is read from the video4linux2
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# driver.
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ffmpeg -f video4linux2 -i /dev/video0 out.mpeg
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avconv -f video4linux2 -i /dev/video0 out.mpeg
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@end example
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@section vfwcap
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@ -326,12 +326,12 @@ Check the X11 documentation (e.g. man X) for more detailed information.
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Use the @file{dpyinfo} program for getting basic information about the
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properties of your X11 display (e.g. grep for "name" or "dimensions").
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For example to grab from @file{:0.0} using @file{ffmpeg}:
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For example to grab from @file{:0.0} using @command{avconv}:
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@example
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ffmpeg -f x11grab -r 25 -s cif -i :0.0 out.mpg
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avconv -f x11grab -r 25 -s cif -i :0.0 out.mpg
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# Grab at position 10,20.
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ffmpeg -f x11grab -r 25 -s cif -i :0.0+10,20 out.mpg
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avconv -f x11grab -r 25 -s cif -i :0.0+10,20 out.mpg
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@end example
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@subsection @var{follow_mouse} AVOption
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@ -348,10 +348,10 @@ zero) to the edge of region.
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For example:
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@example
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ffmpeg -f x11grab -follow_mouse centered -r 25 -s cif -i :0.0 out.mpg
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avconv -f x11grab -follow_mouse centered -r 25 -s cif -i :0.0 out.mpg
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# Follows only when the mouse pointer reaches within 100 pixels to edge
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ffmpeg -f x11grab -follow_mouse 100 -r 25 -s cif -i :0.0 out.mpg
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avconv -f x11grab -follow_mouse 100 -r 25 -s cif -i :0.0 out.mpg
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@end example
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@subsection @var{show_region} AVOption
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@ -367,10 +367,10 @@ being grabbed if only a portion of the screen is grabbed.
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For example:
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@example
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ffmpeg -f x11grab -show_region 1 -r 25 -s cif -i :0.0+10,20 out.mpg
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avconv -f x11grab -show_region 1 -r 25 -s cif -i :0.0+10,20 out.mpg
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# With follow_mouse
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ffmpeg -f x11grab -follow_mouse centered -show_region 1 -r 25 -s cif -i :0.0 out.mpg
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avconv -f x11grab -follow_mouse centered -show_region 1 -r 25 -s cif -i :0.0 out.mpg
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@end example
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@c man end INPUT DEVICES
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@ -35,20 +35,20 @@ CRC=0x@var{CRC}, where @var{CRC} is a hexadecimal number 0-padded to
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For example to compute the CRC of the input, and store it in the file
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@file{out.crc}:
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@example
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ffmpeg -i INPUT -f crc out.crc
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avconv -i INPUT -f crc out.crc
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@end example
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You can print the CRC to stdout with the command:
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@example
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ffmpeg -i INPUT -f crc -
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avconv -i INPUT -f crc -
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@end example
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You can select the output format of each frame with @file{ffmpeg} by
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You can select the output format of each frame with @command{avconv} by
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specifying the audio and video codec and format. For example to
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compute the CRC of the input audio converted to PCM unsigned 8-bit
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and the input video converted to MPEG-2 video, use the command:
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@example
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ffmpeg -i INPUT -acodec pcm_u8 -vcodec mpeg2video -f crc -
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avconv -i INPUT -c:a pcm_u8 -c:v mpeg2video -f crc -
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@end example
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See also the @ref{framecrc} muxer.
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@ -71,21 +71,21 @@ number 0-padded to 8 digits containing the CRC of the decoded frame.
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For example to compute the CRC of each decoded frame in the input, and
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store it in the file @file{out.crc}:
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@example
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ffmpeg -i INPUT -f framecrc out.crc
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avconv -i INPUT -f framecrc out.crc
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@end example
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You can print the CRC of each decoded frame to stdout with the command:
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@example
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ffmpeg -i INPUT -f framecrc -
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avconv -i INPUT -f framecrc -
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@end example
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You can select the output format of each frame with @file{ffmpeg} by
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You can select the output format of each frame with @command{avconv} by
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specifying the audio and video codec and format. For example, to
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compute the CRC of each decoded input audio frame converted to PCM
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unsigned 8-bit and of each decoded input video frame converted to
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MPEG-2 video, use the command:
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@example
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ffmpeg -i INPUT -acodec pcm_u8 -vcodec mpeg2video -f framecrc -
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avconv -i INPUT -c:a pcm_u8 -c:v mpeg2video -f framecrc -
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@end example
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See also the @ref{crc} muxer.
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@ -119,26 +119,26 @@ The pattern "img%%-%d.jpg" will specify a sequence of filenames of the
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form @file{img%-1.jpg}, @file{img%-2.jpg}, ..., @file{img%-10.jpg},
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etc.
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The following example shows how to use @file{ffmpeg} for creating a
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The following example shows how to use @command{avconv} for creating a
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sequence of files @file{img-001.jpeg}, @file{img-002.jpeg}, ...,
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taking one image every second from the input video:
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@example
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ffmpeg -i in.avi -r 1 -f image2 'img-%03d.jpeg'
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avconv -i in.avi -vsync 1 -r 1 -f image2 'img-%03d.jpeg'
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@end example
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Note that with @file{ffmpeg}, if the format is not specified with the
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Note that with @command{avconv}, if the format is not specified with the
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@code{-f} option and the output filename specifies an image file
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format, the image2 muxer is automatically selected, so the previous
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command can be written as:
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@example
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ffmpeg -i in.avi -r 1 'img-%03d.jpeg'
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avconv -i in.avi -vsync 1 -r 1 'img-%03d.jpeg'
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@end example
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Note also that the pattern must not necessarily contain "%d" or
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"%0@var{N}d", for example to create a single image file
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@file{img.jpeg} from the input video you can employ the command:
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@example
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ffmpeg -i in.avi -f image2 -vframes 1 img.jpeg
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avconv -i in.avi -f image2 -frames:v 1 img.jpeg
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@end example
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@section mpegts
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@ -171,7 +171,7 @@ and @code{service_name}. If they are not set the default for
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@code{service_name} is "Service01".
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@example
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ffmpeg -i file.mpg -acodec copy -vcodec copy \
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avconv -i file.mpg -c copy \
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-mpegts_original_network_id 0x1122 \
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-mpegts_transport_stream_id 0x3344 \
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-mpegts_service_id 0x5566 \
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@ -189,19 +189,19 @@ Null muxer.
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This muxer does not generate any output file, it is mainly useful for
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testing or benchmarking purposes.
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For example to benchmark decoding with @file{ffmpeg} you can use the
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For example to benchmark decoding with @command{avconv} you can use the
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command:
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@example
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ffmpeg -benchmark -i INPUT -f null out.null
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avconv -benchmark -i INPUT -f null out.null
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@end example
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Note that the above command does not read or write the @file{out.null}
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file, but specifying the output file is required by the @file{ffmpeg}
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file, but specifying the output file is required by the @command{avconv}
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syntax.
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Alternatively you can write the command as:
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@example
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ffmpeg -benchmark -i INPUT -f null -
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avconv -benchmark -i INPUT -f null -
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@end example
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@section matroska
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@ -264,7 +264,7 @@ Both eyes laced in one Block, Right-eye view is first
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For example a 3D WebM clip can be created using the following command line:
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@example
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ffmpeg -i sample_left_right_clip.mpg -an -vcodec libvpx -metadata STEREO_MODE=left_right -y stereo_clip.webm
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avconv -i sample_left_right_clip.mpg -an -c:v libvpx -metadata STEREO_MODE=left_right -y stereo_clip.webm
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@end example
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@c man end MUXERS
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@ -67,10 +67,10 @@ File access protocol.
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Allow to read from or read to a file.
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For example to read from a file @file{input.mpeg} with @file{ffmpeg}
|
||||
For example to read from a file @file{input.mpeg} with @command{avconv}
|
||||
use the command:
|
||||
@example
|
||||
ffmpeg -i file:input.mpeg output.mpeg
|
||||
avconv -i file:input.mpeg output.mpeg
|
||||
@end example
|
||||
|
||||
The ff* tools default to the file protocol, that is a resource
|
||||
@ -109,10 +109,10 @@ be used to test muxers without writing an actual file.
|
||||
Some examples follow.
|
||||
@example
|
||||
# Write the MD5 hash of the encoded AVI file to the file output.avi.md5.
|
||||
ffmpeg -i input.flv -f avi -y md5:output.avi.md5
|
||||
avconv -i input.flv -f avi -y md5:output.avi.md5
|
||||
|
||||
# Write the MD5 hash of the encoded AVI file to stdout.
|
||||
ffmpeg -i input.flv -f avi -y md5:
|
||||
avconv -i input.flv -f avi -y md5:
|
||||
@end example
|
||||
|
||||
Note that some formats (typically MOV) require the output protocol to
|
||||
@ -134,18 +134,18 @@ pipe (e.g. 0 for stdin, 1 for stdout, 2 for stderr). If @var{number}
|
||||
is not specified, by default the stdout file descriptor will be used
|
||||
for writing, stdin for reading.
|
||||
|
||||
For example to read from stdin with @file{ffmpeg}:
|
||||
For example to read from stdin with @command{avconv}:
|
||||
@example
|
||||
cat test.wav | ffmpeg -i pipe:0
|
||||
cat test.wav | avconv -i pipe:0
|
||||
# ...this is the same as...
|
||||
cat test.wav | ffmpeg -i pipe:
|
||||
cat test.wav | avconv -i pipe:
|
||||
@end example
|
||||
|
||||
For writing to stdout with @file{ffmpeg}:
|
||||
For writing to stdout with @command{avconv}:
|
||||
@example
|
||||
ffmpeg -i test.wav -f avi pipe:1 | cat > test.avi
|
||||
avconv -i test.wav -f avi pipe:1 | cat > test.avi
|
||||
# ...this is the same as...
|
||||
ffmpeg -i test.wav -f avi pipe: | cat > test.avi
|
||||
avconv -i test.wav -f avi pipe: | cat > test.avi
|
||||
@end example
|
||||
|
||||
Note that some formats (typically MOV), require the output protocol to
|
||||
@ -219,9 +219,9 @@ meaning as specified for the RTMP native protocol.
|
||||
See the librtmp manual page (man 3 librtmp) for more information.
|
||||
|
||||
For example, to stream a file in real-time to an RTMP server using
|
||||
@file{ffmpeg}:
|
||||
@command{avconv}:
|
||||
@example
|
||||
ffmpeg -re -i myfile -f flv rtmp://myserver/live/mystream
|
||||
avconv -re -i myfile -f flv rtmp://myserver/live/mystream
|
||||
@end example
|
||||
|
||||
To play the same stream using @file{avplay}:
|
||||
@ -249,7 +249,7 @@ The required syntax for a RTSP url is:
|
||||
rtsp://@var{hostname}[:@var{port}]/@var{path}
|
||||
@end example
|
||||
|
||||
The following options (set on the @file{avconv}/@file{avplay} command
|
||||
The following options (set on the @command{avconv}/@file{avplay} command
|
||||
line, or set in code via @code{AVOption}s or in @code{avformat_open_input}),
|
||||
are supported:
|
||||
|
||||
@ -310,7 +310,7 @@ avplay -rtsp_transport http rtsp://server/video.mp4
|
||||
To send a stream in realtime to a RTSP server, for others to watch:
|
||||
|
||||
@example
|
||||
ffmpeg -re -i @var{input} -f rtsp -muxdelay 0.1 rtsp://server/live.sdp
|
||||
avconv -re -i @var{input} -f rtsp -muxdelay 0.1 rtsp://server/live.sdp
|
||||
@end example
|
||||
|
||||
@section sap
|
||||
@ -362,19 +362,19 @@ Example command lines follow.
|
||||
To broadcast a stream on the local subnet, for watching in VLC:
|
||||
|
||||
@example
|
||||
ffmpeg -re -i @var{input} -f sap sap://224.0.0.255?same_port=1
|
||||
avconv -re -i @var{input} -f sap sap://224.0.0.255?same_port=1
|
||||
@end example
|
||||
|
||||
Similarly, for watching in avplay:
|
||||
|
||||
@example
|
||||
ffmpeg -re -i @var{input} -f sap sap://224.0.0.255
|
||||
avconv -re -i @var{input} -f sap sap://224.0.0.255
|
||||
@end example
|
||||
|
||||
And for watching in avplay, over IPv6:
|
||||
|
||||
@example
|
||||
ffmpeg -re -i @var{input} -f sap sap://[ff0e::1:2:3:4]
|
||||
avconv -re -i @var{input} -f sap sap://[ff0e::1:2:3:4]
|
||||
@end example
|
||||
|
||||
@subsection Demuxer
|
||||
@ -420,7 +420,7 @@ tcp://@var{hostname}:@var{port}[?@var{options}]
|
||||
Listen for an incoming connection
|
||||
|
||||
@example
|
||||
ffmpeg -i @var{input} -f @var{format} tcp://@var{hostname}:@var{port}?listen
|
||||
avconv -i @var{input} -f @var{format} tcp://@var{hostname}:@var{port}?listen
|
||||
avplay tcp://@var{hostname}:@var{port}
|
||||
@end example
|
||||
|
||||
@ -472,21 +472,21 @@ For receiving, this gives the benefit of only receiving packets from
|
||||
the specified peer address/port.
|
||||
@end table
|
||||
|
||||
Some usage examples of the udp protocol with @file{ffmpeg} follow.
|
||||
Some usage examples of the udp protocol with @command{avconv} follow.
|
||||
|
||||
To stream over UDP to a remote endpoint:
|
||||
@example
|
||||
ffmpeg -i @var{input} -f @var{format} udp://@var{hostname}:@var{port}
|
||||
avconv -i @var{input} -f @var{format} udp://@var{hostname}:@var{port}
|
||||
@end example
|
||||
|
||||
To stream in mpegts format over UDP using 188 sized UDP packets, using a large input buffer:
|
||||
@example
|
||||
ffmpeg -i @var{input} -f mpegts udp://@var{hostname}:@var{port}?pkt_size=188&buffer_size=65535
|
||||
avconv -i @var{input} -f mpegts udp://@var{hostname}:@var{port}?pkt_size=188&buffer_size=65535
|
||||
@end example
|
||||
|
||||
To receive over UDP from a remote endpoint:
|
||||
@example
|
||||
ffmpeg -i udp://[@var{multicast-address}]:@var{port}
|
||||
avconv -i udp://[@var{multicast-address}]:@var{port}
|
||||
@end example
|
||||
|
||||
@c man end PROTOCOLS
|
||||
|
||||
Loading…
Reference in New Issue
Block a user