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Diffstat (limited to 'doc/muxers.texi')
| -rw-r--r-- | doc/muxers.texi | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/doc/muxers.texi b/doc/muxers.texi index 7059eaf401..60a72d6dbb 100644 --- a/doc/muxers.texi +++ b/doc/muxers.texi @@ -43,12 +43,12 @@ You can print the CRC to stdout with the command: ffmpeg -i INPUT -f crc - @end example -You can select the output format of each frame with @file{ffmpeg} by +You can select the output format of each frame with @command{ffmpeg} by specifying the audio and video codec and format. For example to compute the CRC of the input audio converted to PCM unsigned 8-bit and the input video converted to MPEG-2 video, use the command: @example -ffmpeg -i INPUT -acodec pcm_u8 -vcodec mpeg2video -f crc - +ffmpeg -i INPUT -c:a pcm_u8 -c:v mpeg2video -f crc - @end example See also the @ref{framecrc} muxer. @@ -79,13 +79,13 @@ You can print the CRC of each decoded frame to stdout with the command: ffmpeg -i INPUT -f framecrc - @end example -You can select the output format of each frame with @file{ffmpeg} by +You can select the output format of each frame with @command{ffmpeg} by specifying the audio and video codec and format. For example, to compute the CRC of each decoded input audio frame converted to PCM unsigned 8-bit and of each decoded input video frame converted to MPEG-2 video, use the command: @example -ffmpeg -i INPUT -acodec pcm_u8 -vcodec mpeg2video -f framecrc - +ffmpeg -i INPUT -c:a pcm_u8 -c:v mpeg2video -f framecrc - @end example See also the @ref{crc} muxer. @@ -119,26 +119,26 @@ The pattern "img%%-%d.jpg" will specify a sequence of filenames of the form @file{img%-1.jpg}, @file{img%-2.jpg}, ..., @file{img%-10.jpg}, etc. -The following example shows how to use @file{ffmpeg} for creating a +The following example shows how to use @command{ffmpeg} for creating a sequence of files @file{img-001.jpeg}, @file{img-002.jpeg}, ..., taking one image every second from the input video: @example -ffmpeg -i in.avi -r 1 -f image2 'img-%03d.jpeg' +ffmpeg -i in.avi -vsync 1 -r 1 -f image2 'img-%03d.jpeg' @end example -Note that with @file{ffmpeg}, if the format is not specified with the +Note that with @command{ffmpeg}, if the format is not specified with the @code{-f} option and the output filename specifies an image file format, the image2 muxer is automatically selected, so the previous command can be written as: @example -ffmpeg -i in.avi -r 1 'img-%03d.jpeg' +ffmpeg -i in.avi -vsync 1 -r 1 'img-%03d.jpeg' @end example Note also that the pattern must not necessarily contain "%d" or "%0@var{N}d", for example to create a single image file @file{img.jpeg} from the input video you can employ the command: @example -ffmpeg -i in.avi -f image2 -vframes 1 img.jpeg +ffmpeg -i in.avi -f image2 -frames:v 1 img.jpeg @end example The image muxer supports the .Y.U.V image file format. This format is @@ -189,7 +189,7 @@ and @code{service_name}. If they are not set the default for @code{service_name} is "Service01". @example -ffmpeg -i file.mpg -acodec copy -vcodec copy \ +ffmpeg -i file.mpg -c copy \ -mpegts_original_network_id 0x1122 \ -mpegts_transport_stream_id 0x3344 \ -mpegts_service_id 0x5566 \ @@ -207,14 +207,14 @@ Null muxer. This muxer does not generate any output file, it is mainly useful for testing or benchmarking purposes. -For example to benchmark decoding with @file{ffmpeg} you can use the +For example to benchmark decoding with @command{ffmpeg} you can use the command: @example ffmpeg -benchmark -i INPUT -f null out.null @end example Note that the above command does not read or write the @file{out.null} -file, but specifying the output file is required by the @file{ffmpeg} +file, but specifying the output file is required by the @command{ffmpeg} syntax. Alternatively you can write the command as: @@ -282,7 +282,7 @@ Both eyes laced in one Block, Right-eye view is first For example a 3D WebM clip can be created using the following command line: @example -ffmpeg -i sample_left_right_clip.mpg -an -vcodec libvpx -metadata stereo_mode=left_right -y stereo_clip.webm +ffmpeg -i sample_left_right_clip.mpg -an -c:v libvpx -metadata stereo_mode=left_right -y stereo_clip.webm @end example @c man end MUXERS |