Description

The Image Capture sample shows how to record a video from an NVIDIA^® CUDA^® image or directly from the rendering window. To differentiate the two sources, the sample renders different text on the screen.

Running the Sample

The command line for the sample is:

./sample_image_capture --capture-bitrate=[integer]
                       --capture-file=[path/to/output/h264/file]
                       --capture-framerate=[integer]
                       --capture-screen=[0|1]

where

--capture-bitrate=[integer]
    Defines the suggested bitrate for the output file. The actual bitrate might be different, depending on the input.
    For example, if the input is a black windows the output frame rate will be very close to 0.
    Default value: 10000000

--capture-file=[path/to/output/h264/file]
    Specifies the path to the captured video.
    Default value: capture.h264

--capture-framerate=[integer]
    Specifies the rate at which frames are captured.
    Default value: 30

--capture-screen=[0|1]
    Specifies whether to capture the current window on a synthetic CUDA image.
    Default value: 1

Example

To record with default parameters in a specific output file

./sample_image_capture --capture-file=path/to/captureOutput.h264

Output

The sample creates a window and renders a coloured pattern and a floating "DriveWorks" text.

When recording directly from screen, the text is also visible in the recording.
When recording from a synthetic CUDA image, there is no rendered text.

image screen capture

Additional information

For more information, see Image .