VideoLAN Wiki - User contributions [en]

Documentation:Modules/v4l

2009-04-02T01:48:06Z

Willtriv:

== Help Output ==

Each of these options can be used as commandline flags individually as shown below or as such:
v4l:///dev/video:norm=secam:frequency=543250:size=640x480:channel=0:adev=/dev/dsp:audio=0
where you can see that /dev/video refers to vdev, and the rest line up with the flags below less the prefix --v4l-.

Video4Linux input (v4l)
--v4l-caching <integer> Caching value in ms
Caching value for V4L captures. This value should be set in milliseconds.
--v4l-vdev <string> Video device name
Name of the video device to use. If you don't specify anything, no video device will be used.
--v4l-adev <string> Audio device name
Name of the audio device to use. If you don't specify anything, no audio device will be used.
--v4l-chroma <string> Video input chroma format
Force the Video4Linux video device to use a specific chroma format (eg. I420 (default), RV24, etc.)
--v4l-fps <float> Framerate
Framerate to capture, if applicable (-1 for autodetect).
--v4l-samplerate <integer> Samplerate
Samplerate of the captured audio stream, in Hz (eg: 11025, 22050, 44100)
--v4l-channel <integer> Channel
Channel of the card to use (Usually, 0 = tuner, 1 = composite, 2 = svideo).
--v4l-tuner <integer> Tuner
Tuner to use, if there are several ones.
--v4l-norm {3 (Automatic), 2 (SECAM), 0 (PAL), 1 (NTSC)}
Norm
Norm of the stream (Automatic, SECAM, PAL, or NTSC).
--v4l-frequency <integer> Frequency
Frequency to capture (in kHz), if applicable.
--v4l-audio <integer> Audio Channel
Audio Channel to use, if there are several audio inputs.
--v4l-stereo, --no-v4l-stereo
Stereo (default enabled)
Capture the audio stream in stereo. (default enabled)
--v4l-width <integer> Width
Width of the stream to capture (-1 for autodetect).
--v4l-height <integer> Height
Height of the stream to capture (-1 for autodetect).
--v4l-brightness <integer> Brightness
Brightness of the video input.
--v4l-colour <integer> Color
Color of the video input.
--v4l-hue <integer> Hue
Hue of the video input.
--v4l-contrast <integer> Contrast
Contrast of the video input.
--v4l-mjpeg, --no-v4l-mjpeg
MJPEG (default disabled)
Set this option if the capture device outputs MJPEG (default disabled)
--v4l-decimation <integer> Decimation
Decimation level for MJPEG streams
--v4l-quality <integer> Quality
Quality of the stream.

Documentation:Modules/v4l

2009-04-02T01:46:18Z

Willtriv:

== Help Output ==

Video4Linux input (v4l)
--v4l-caching <integer> Caching value in ms
Caching value for V4L captures. This value should be set in milliseconds.
--v4l-vdev <string> Video device name
Name of the video device to use. If you don't specify anything, no video device will be used.
--v4l-adev <string> Audio device name
Name of the audio device to use. If you don't specify anything, no audio device will be used.
--v4l-chroma <string> Video input chroma format
Force the Video4Linux video device to use a specific chroma format (eg. I420 (default), RV24, etc.)
--v4l-fps <float> Framerate
Framerate to capture, if applicable (-1 for autodetect).
--v4l-samplerate <integer> Samplerate
Samplerate of the captured audio stream, in Hz (eg: 11025, 22050, 44100)
--v4l-channel <integer> Channel
Channel of the card to use (Usually, 0 = tuner, 1 = composite, 2 = svideo).
--v4l-tuner <integer> Tuner
Tuner to use, if there are several ones.
--v4l-norm {3 (Automatic), 2 (SECAM), 0 (PAL), 1 (NTSC)}
Norm
Norm of the stream (Automatic, SECAM, PAL, or NTSC).
--v4l-frequency <integer> Frequency
Frequency to capture (in kHz), if applicable.
--v4l-audio <integer> Audio Channel
Audio Channel to use, if there are several audio inputs.
--v4l-stereo, --no-v4l-stereo
Stereo (default enabled)
Capture the audio stream in stereo. (default enabled)
--v4l-width <integer> Width
Width of the stream to capture (-1 for autodetect).
--v4l-height <integer> Height
Height of the stream to capture (-1 for autodetect).
--v4l-brightness <integer> Brightness
Brightness of the video input.
--v4l-colour <integer> Color
Color of the video input.
--v4l-hue <integer> Hue
Hue of the video input.
--v4l-contrast <integer> Contrast
Contrast of the video input.
--v4l-mjpeg, --no-v4l-mjpeg
MJPEG (default disabled)
Set this option if the capture device outputs MJPEG (default disabled)
--v4l-decimation <integer> Decimation
Decimation level for MJPEG streams
--v4l-quality <integer> Quality
Quality of the stream.

Documentation:Modules/v4l

2009-04-02T01:45:43Z

Willtriv:

/*Help Output*/

Video4Linux input (v4l)
--v4l-caching <integer> Caching value in ms
Caching value for V4L captures. This value should be set in milliseconds.
--v4l-vdev <string> Video device name
Name of the video device to use. If you don't specify anything, no video device will be used.
--v4l-adev <string> Audio device name
Name of the audio device to use. If you don't specify anything, no audio device will be used.
--v4l-chroma <string> Video input chroma format
Force the Video4Linux video device to use a specific chroma format (eg. I420 (default), RV24, etc.)
--v4l-fps <float> Framerate
Framerate to capture, if applicable (-1 for autodetect).
--v4l-samplerate <integer> Samplerate
Samplerate of the captured audio stream, in Hz (eg: 11025, 22050, 44100)
--v4l-channel <integer> Channel
Channel of the card to use (Usually, 0 = tuner, 1 = composite, 2 = svideo).
--v4l-tuner <integer> Tuner
Tuner to use, if there are several ones.
--v4l-norm {3 (Automatic), 2 (SECAM), 0 (PAL), 1 (NTSC)}
Norm
Norm of the stream (Automatic, SECAM, PAL, or NTSC).
--v4l-frequency <integer> Frequency
Frequency to capture (in kHz), if applicable.
--v4l-audio <integer> Audio Channel
Audio Channel to use, if there are several audio inputs.
--v4l-stereo, --no-v4l-stereo
Stereo (default enabled)
Capture the audio stream in stereo. (default enabled)
--v4l-width <integer> Width
Width of the stream to capture (-1 for autodetect).
--v4l-height <integer> Height
Height of the stream to capture (-1 for autodetect).
--v4l-brightness <integer> Brightness
Brightness of the video input.
--v4l-colour <integer> Color
Color of the video input.
--v4l-hue <integer> Hue
Hue of the video input.
--v4l-contrast <integer> Contrast
Contrast of the video input.
--v4l-mjpeg, --no-v4l-mjpeg
MJPEG (default disabled)
Set this option if the capture device outputs MJPEG (default disabled)
--v4l-decimation <integer> Decimation
Decimation level for MJPEG streams
--v4l-quality <integer> Quality
Quality of the stream.

Documentation:Modules/v4l

2009-04-02T01:44:43Z

Willtriv: New page: Video4Linux input (v4l) --v4l-caching <integer> Caching value in ms Caching value for V4L captures. This value should be set in milliseconds. --v4l-vdev <string> ...

Video4Linux input (v4l)
--v4l-caching <integer> Caching value in ms
Caching value for V4L captures. This value should be set in milliseconds.
--v4l-vdev <string> Video device name
Name of the video device to use. If you don't specify anything, no video device will be used.
--v4l-adev <string> Audio device name
Name of the audio device to use. If you don't specify anything, no audio device will be used.
--v4l-chroma <string> Video input chroma format
Force the Video4Linux video device to use a specific chroma format (eg. I420 (default), RV24, etc.)
--v4l-fps <float> Framerate
Framerate to capture, if applicable (-1 for autodetect).
--v4l-samplerate <integer> Samplerate
Samplerate of the captured audio stream, in Hz (eg: 11025, 22050, 44100)
--v4l-channel <integer> Channel
Channel of the card to use (Usually, 0 = tuner, 1 = composite, 2 = svideo).
--v4l-tuner <integer> Tuner
Tuner to use, if there are several ones.
--v4l-norm {3 (Automatic), 2 (SECAM), 0 (PAL), 1 (NTSC)}
Norm
Norm of the stream (Automatic, SECAM, PAL, or NTSC).
--v4l-frequency <integer> Frequency
Frequency to capture (in kHz), if applicable.
--v4l-audio <integer> Audio Channel
Audio Channel to use, if there are several audio inputs.
--v4l-stereo, --no-v4l-stereo
Stereo (default enabled)
Capture the audio stream in stereo. (default enabled)
--v4l-width <integer> Width
Width of the stream to capture (-1 for autodetect).
--v4l-height <integer> Height
Height of the stream to capture (-1 for autodetect).
--v4l-brightness <integer> Brightness
Brightness of the video input.
--v4l-colour <integer> Color
Color of the video input.
--v4l-hue <integer> Hue
Hue of the video input.
--v4l-contrast <integer> Contrast
Contrast of the video input.
--v4l-mjpeg, --no-v4l-mjpeg
MJPEG (default disabled)
Set this option if the capture device outputs MJPEG (default disabled)
--v4l-decimation <integer> Decimation
Decimation level for MJPEG streams
--v4l-quality <integer> Quality
Quality of the stream.