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List of Encoder Switches
Here is a table describing the various other switches
available and the syntax for employing them.
Skip to a subsection
- A list of switches and variables
How to add a switch using the Encoder GUI:
- Changing or adding command switches in the GUI
- Adding switches to a Command Line Encode
How to add a switch the DOS Command line:
List of Encoder Switches
COMMON OR NECESSARY SWITCHES |
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| Function | Description | Syntax | |
| Frames per second | How many frames per second the output video will display | -f(xxx) Whereas (xxx) = frames per second (0.01-15) If the frames per second is not specified, it will default to 10fps. |
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| Target Data Rate | The target connection the output movie version is aiming for | -b(xxx) whereas (xxx)
= bits per second (56k:40000, CABLE:300000) If the Data Rate is limited only when this switch is set. The Audio Data Rate will be subtracted from this value to calculate the Video Data Rate. |
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| Video image quality | A quality minumum and maximum that the encode version must meet. If a frame does not meet this measurement, it will be dropped. | -q(##,##) Whereas (##) = minimum picture quality, maximum picture quality (15-99) If the quality is not specified, it will default to 40. If only one variable is entered, the Encoder will reduce quality as necessary but only to one third of that value. If more quality is asked for than the data rate can accommodate, the Encoder will be forced to skip frames. |
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| AUDIO SWITCHES |
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| Function | Description | Syntax | |
| Audio bitrate | overall audio quality | -a(xxxxx) Zero is silence, 8000 is generally the lowest acceptable, 128000 is a high end setting for high bitrate videos. If no audio bitrate is specified, it will default to 24000. Remember, the number selected here is swubtracted from the total bitrate so a high number could potentially affect video quality.. |
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| Optimize audio for voice or mono | Intended for high speed playback | -v | |
| Audio signal emphasis | -e(xxx) whereas (xxx) xxx=(0.0 - 0.99) |
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| Increase volume | Enter -l### 'l' stands for level and 100 is no change. Less than 100 will lower the volume and above 100 will increase it. Try -l200 and go from there until you find something acceptable. |
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OPTIONAL |
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| Function | Description | Syntax | |
| Crop (time) | Chop off time in the output movie from the beginning and/or end. | -c{####},{####} whereas
{##} = cropped value in milliseconds Cropped value is in milliseconds, based on the source file time. eg.-c4000,119000; crop 4 seconds off of the beginning of the video, 1 second off of the end of a 2 minute video. *Note possible implications if using -p at the same time. |
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| Crop pixels in encode | Crop a number of pixels from the edges in your output movie. | -t {##},{##},{##},{##}
whereas {##} = cropped value in pixels {left},{right},{top},{bottom} Cropped value is in pixels, based on the source file dimensions. eg.-t12,4,0,0 -> trim 12 pixels off of left, 4 off of right, prior to adjusting dimensions. |
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| Pop up a alert indicating that the encode is finished | -y | ||
| Set encoding priority to idle | This allows the encoding to run in the background, not affecting other tasks. | -i | |
| Export frame | Exports single or multiple .jpgs from source video. | -p{time},{filename},{time},filename} Extract frames from the source timeline [{ms},{*.jpg}[,{ms},{*.jpg}] Time = ms of the source file. The first frame after cropping is taken if the selected time is before the cropping, it is skipped if it's beyond the cropping Filename = filename of the output jpeg file. e.g.-p5000,5thSec.jpg,21000,21stSec.jpg |
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| Use Security ID for secure encoding | Encode your content with your individual security key so that it is playable only on your web server. | -s (###########) whereas
(##########) = Security ID. *Please do not confuse the Secure ID with your Clipstream™ Video code key. |
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| Adjust the brightness of a video | Adjust the gamma, contrast or brightness in the output. | amma, contrast, brightness
correction on RGB channels, skip G & B to use the value for all 3 RGB channels -ggR,G,B R/G/B=0.0~9.0 default 1.0 To increase brightness, something like -gb3 in your Extra Encoder Parameters field in Advanced Options->Settings should do it. |
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| Lock size, quality, frame-rate, etc. | -d will lock one of the encoding parameters (this works the same way as in the 2.5 GUI if you choose to lock any of the video options in the Main Window) | -ds size -df fps -dq quality -da audio bitrate -dm (the -gm value) |
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