[FFmpeg-cvslog] r23445 - trunk/doc/ffmpeg-doc.texi
stefano
subversion
Thu Jun 3 22:11:36 CEST 2010
Author: stefano
Date: Thu Jun 3 22:11:36 2010
New Revision: 23445
Log:
Move section EXAMPLES towards the end of the ffmpeg-doc.texi file.
This is consistent with the the rendered ordering of the ffmpeg man
page.
Modified:
trunk/doc/ffmpeg-doc.texi
Modified: trunk/doc/ffmpeg-doc.texi
==============================================================================
--- trunk/doc/ffmpeg-doc.texi Thu Jun 3 21:16:08 2010 (r23444)
+++ trunk/doc/ffmpeg-doc.texi Thu Jun 3 22:11:36 2010 (r23445)
@@ -50,166 +50,6 @@ specified for the inputs.
@c man end DESCRIPTION
- at chapter Examples
- at c man begin EXAMPLES
-
- at section Video and Audio grabbing
-
-FFmpeg can grab video and audio from devices given that you specify the input
-format and device.
-
- at example
-ffmpeg -f oss -i /dev/dsp -f video4linux2 -i /dev/video0 /tmp/out.mpg
- at end example
-
-Note that you must activate the right video source and channel before
-launching FFmpeg with any TV viewer such as xawtv
-(@url{http://linux.bytesex.org/xawtv/}) by Gerd Knorr. You also
-have to set the audio recording levels correctly with a
-standard mixer.
-
- at section X11 grabbing
-
-FFmpeg can grab the X11 display.
-
- at example
-ffmpeg -f x11grab -s cif -i :0.0 /tmp/out.mpg
- at end example
-
-0.0 is display.screen number of your X11 server, same as
-the DISPLAY environment variable.
-
- at example
-ffmpeg -f x11grab -s cif -i :0.0+10,20 /tmp/out.mpg
- at end example
-
-0.0 is display.screen number of your X11 server, same as the DISPLAY environment
-variable. 10 is the x-offset and 20 the y-offset for the grabbing.
-
- at section Video and Audio file format conversion
-
-* FFmpeg can use any supported file format and protocol as input:
-
-Examples:
-
-* You can use YUV files as input:
-
- at example
-ffmpeg -i /tmp/test%d.Y /tmp/out.mpg
- at end example
-
-It will use the files:
- at example
-/tmp/test0.Y, /tmp/test0.U, /tmp/test0.V,
-/tmp/test1.Y, /tmp/test1.U, /tmp/test1.V, etc...
- at end example
-
-The Y files use twice the resolution of the U and V files. They are
-raw files, without header. They can be generated by all decent video
-decoders. You must specify the size of the image with the @option{-s} option
-if FFmpeg cannot guess it.
-
-* You can input from a raw YUV420P file:
-
- at example
-ffmpeg -i /tmp/test.yuv /tmp/out.avi
- at end example
-
-test.yuv is a file containing raw YUV planar data. Each frame is composed
-of the Y plane followed by the U and V planes at half vertical and
-horizontal resolution.
-
-* You can output to a raw YUV420P file:
-
- at example
-ffmpeg -i mydivx.avi hugefile.yuv
- at end example
-
-* You can set several input files and output files:
-
- at example
-ffmpeg -i /tmp/a.wav -s 640x480 -i /tmp/a.yuv /tmp/a.mpg
- at end example
-
-Converts the audio file a.wav and the raw YUV video file a.yuv
-to MPEG file a.mpg.
-
-* You can also do audio and video conversions at the same time:
-
- at example
-ffmpeg -i /tmp/a.wav -ar 22050 /tmp/a.mp2
- at end example
-
-Converts a.wav to MPEG audio at 22050 Hz sample rate.
-
-* You can encode to several formats at the same time and define a
-mapping from input stream to output streams:
-
- at example
-ffmpeg -i /tmp/a.wav -ab 64k /tmp/a.mp2 -ab 128k /tmp/b.mp2 -map 0:0 -map 0:0
- at end example
-
-Converts a.wav to a.mp2 at 64 kbits and to b.mp2 at 128 kbits. '-map
-file:index' specifies which input stream is used for each output
-stream, in the order of the definition of output streams.
-
-* You can transcode decrypted VOBs:
-
- at example
-ffmpeg -i snatch_1.vob -f avi -vcodec mpeg4 -b 800k -g 300 -bf 2 -acodec libmp3lame -ab 128k snatch.avi
- at end example
-
-This is a typical DVD ripping example; the input is a VOB file, the
-output an AVI file with MPEG-4 video and MP3 audio. Note that in this
-command we use B-frames so the MPEG-4 stream is DivX5 compatible, and
-GOP size is 300 which means one intra frame every 10 seconds for 29.97fps
-input video. Furthermore, the audio stream is MP3-encoded so you need
-to enable LAME support by passing @code{--enable-libmp3lame} to configure.
-The mapping is particularly useful for DVD transcoding
-to get the desired audio language.
-
-NOTE: To see the supported input formats, use @code{ffmpeg -formats}.
-
-* You can extract images from a video, or create a video from many images:
-
-For extracting images from a video:
- at example
-ffmpeg -i foo.avi -r 1 -s WxH -f image2 foo-%03d.jpeg
- at end example
-
-This will extract one video frame per second from the video and will
-output them in files named @file{foo-001.jpeg}, @file{foo-002.jpeg},
-etc. Images will be rescaled to fit the new WxH values.
-
-If you want to extract just a limited number of frames, you can use the
-above command in combination with the -vframes or -t option, or in
-combination with -ss to start extracting from a certain point in time.
-
-For creating a video from many images:
- at example
-ffmpeg -f image2 -i foo-%03d.jpeg -r 12 -s WxH foo.avi
- at end example
-
-The syntax @code{foo-%03d.jpeg} specifies to use a decimal number
-composed of three digits padded with zeroes to express the sequence
-number. It is the same syntax supported by the C printf function, but
-only formats accepting a normal integer are suitable.
-
-* You can put many streams of the same type in the output:
-
- at example
-ffmpeg -i test1.avi -i test2.avi -vcodec copy -acodec copy -vcodec copy -acodec copy test12.avi -newvideo -newaudio
- at end example
-
-In addition to the first video and audio streams, the resulting
-output file @file{test12.avi} will contain the second video
-and the second audio stream found in the input streams list.
-
-The @code{-newvideo}, @code{-newaudio} and @code{-newsubtitle}
-options have to be specified immediately after the name of the output
-file to which you want to add them.
- at c man end
-
@chapter Invocation
@section Syntax
@@ -947,6 +787,166 @@ It allows almost lossless encoding.
@end itemize
@c man end TIPS
+ at chapter Examples
+ at c man begin EXAMPLES
+
+ at section Video and Audio grabbing
+
+FFmpeg can grab video and audio from devices given that you specify the input
+format and device.
+
+ at example
+ffmpeg -f oss -i /dev/dsp -f video4linux2 -i /dev/video0 /tmp/out.mpg
+ at end example
+
+Note that you must activate the right video source and channel before
+launching FFmpeg with any TV viewer such as xawtv
+(@url{http://linux.bytesex.org/xawtv/}) by Gerd Knorr. You also
+have to set the audio recording levels correctly with a
+standard mixer.
+
+ at section X11 grabbing
+
+FFmpeg can grab the X11 display.
+
+ at example
+ffmpeg -f x11grab -s cif -i :0.0 /tmp/out.mpg
+ at end example
+
+0.0 is display.screen number of your X11 server, same as
+the DISPLAY environment variable.
+
+ at example
+ffmpeg -f x11grab -s cif -i :0.0+10,20 /tmp/out.mpg
+ at end example
+
+0.0 is display.screen number of your X11 server, same as the DISPLAY environment
+variable. 10 is the x-offset and 20 the y-offset for the grabbing.
+
+ at section Video and Audio file format conversion
+
+* FFmpeg can use any supported file format and protocol as input:
+
+Examples:
+
+* You can use YUV files as input:
+
+ at example
+ffmpeg -i /tmp/test%d.Y /tmp/out.mpg
+ at end example
+
+It will use the files:
+ at example
+/tmp/test0.Y, /tmp/test0.U, /tmp/test0.V,
+/tmp/test1.Y, /tmp/test1.U, /tmp/test1.V, etc...
+ at end example
+
+The Y files use twice the resolution of the U and V files. They are
+raw files, without header. They can be generated by all decent video
+decoders. You must specify the size of the image with the @option{-s} option
+if FFmpeg cannot guess it.
+
+* You can input from a raw YUV420P file:
+
+ at example
+ffmpeg -i /tmp/test.yuv /tmp/out.avi
+ at end example
+
+test.yuv is a file containing raw YUV planar data. Each frame is composed
+of the Y plane followed by the U and V planes at half vertical and
+horizontal resolution.
+
+* You can output to a raw YUV420P file:
+
+ at example
+ffmpeg -i mydivx.avi hugefile.yuv
+ at end example
+
+* You can set several input files and output files:
+
+ at example
+ffmpeg -i /tmp/a.wav -s 640x480 -i /tmp/a.yuv /tmp/a.mpg
+ at end example
+
+Converts the audio file a.wav and the raw YUV video file a.yuv
+to MPEG file a.mpg.
+
+* You can also do audio and video conversions at the same time:
+
+ at example
+ffmpeg -i /tmp/a.wav -ar 22050 /tmp/a.mp2
+ at end example
+
+Converts a.wav to MPEG audio at 22050 Hz sample rate.
+
+* You can encode to several formats at the same time and define a
+mapping from input stream to output streams:
+
+ at example
+ffmpeg -i /tmp/a.wav -ab 64k /tmp/a.mp2 -ab 128k /tmp/b.mp2 -map 0:0 -map 0:0
+ at end example
+
+Converts a.wav to a.mp2 at 64 kbits and to b.mp2 at 128 kbits. '-map
+file:index' specifies which input stream is used for each output
+stream, in the order of the definition of output streams.
+
+* You can transcode decrypted VOBs:
+
+ at example
+ffmpeg -i snatch_1.vob -f avi -vcodec mpeg4 -b 800k -g 300 -bf 2 -acodec libmp3lame -ab 128k snatch.avi
+ at end example
+
+This is a typical DVD ripping example; the input is a VOB file, the
+output an AVI file with MPEG-4 video and MP3 audio. Note that in this
+command we use B-frames so the MPEG-4 stream is DivX5 compatible, and
+GOP size is 300 which means one intra frame every 10 seconds for 29.97fps
+input video. Furthermore, the audio stream is MP3-encoded so you need
+to enable LAME support by passing @code{--enable-libmp3lame} to configure.
+The mapping is particularly useful for DVD transcoding
+to get the desired audio language.
+
+NOTE: To see the supported input formats, use @code{ffmpeg -formats}.
+
+* You can extract images from a video, or create a video from many images:
+
+For extracting images from a video:
+ at example
+ffmpeg -i foo.avi -r 1 -s WxH -f image2 foo-%03d.jpeg
+ at end example
+
+This will extract one video frame per second from the video and will
+output them in files named @file{foo-001.jpeg}, @file{foo-002.jpeg},
+etc. Images will be rescaled to fit the new WxH values.
+
+If you want to extract just a limited number of frames, you can use the
+above command in combination with the -vframes or -t option, or in
+combination with -ss to start extracting from a certain point in time.
+
+For creating a video from many images:
+ at example
+ffmpeg -f image2 -i foo-%03d.jpeg -r 12 -s WxH foo.avi
+ at end example
+
+The syntax @code{foo-%03d.jpeg} specifies to use a decimal number
+composed of three digits padded with zeroes to express the sequence
+number. It is the same syntax supported by the C printf function, but
+only formats accepting a normal integer are suitable.
+
+* You can put many streams of the same type in the output:
+
+ at example
+ffmpeg -i test1.avi -i test2.avi -vcodec copy -acodec copy -vcodec copy -acodec copy test12.avi -newvideo -newaudio
+ at end example
+
+In addition to the first video and audio streams, the resulting
+output file @file{test12.avi} will contain the second video
+and the second audio stream found in the input streams list.
+
+The @code{-newvideo}, @code{-newaudio} and @code{-newsubtitle}
+options have to be specified immediately after the name of the output
+file to which you want to add them.
+ at c man end EXAMPLES
+
@ignore
@setfilename ffmpeg
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