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NAMEbugle-screenshot - takes screenshots and captures videoSYNOPSISfilterset screenshot { filename " screenshot.ppm" key_screenshot " C-A-S-S" } filterset screenshot C-V inactive { video "yes" filename " video.avi" codec " mpeg4" bitrate " 1000000" allframes " no" } DESCRIPTIONThe screenshot filter-set can be used in one of two modes, corresponding to the two examples above. In the first, a particular key-press causes a screenshot to be taken, which is written to file in ppm(5) format. In the second, a video stream is captured and encoded to one of a range of formats with ffmpeg(1).OPTIONSvideoThis option controls the mode: either screenshots on
request or a video stream. This filter-set supports activation and
deactivation, so it is possible to record video only on demand.
filename
The file to which the image/video is written. In the case
of an image, if the filename contains a % it is used as a format string for
sprintf(3) with the frame number passed as the parameter.
key_screenshot
The key combination used to capture a screenshot.
codec
The codec to use when capturing a video. Refer to the
documentation for ffmpeg(1) for a list of valid codecs. Some codecs
require special setup and may not work, but common codecs such as mpeg4 and
huffyuv should work.
bitrate
The approximate number of bits per second to use for
video encoding.
allframes
By default, a frame is captured 30 times per second. If
this option is set, every frame is captured. Note that the video file will
still play at 30fps, so the speed will vary unless the application has been
written to use a fixed time-step between frames for its internal animation
(this is a useful way to produce smooth video if the capturing overhead is
otherwise too high).
lag
Sets the latency between frame capture and encoding. If
GL_EXT_pixel_buffer_object is available, setting this option to a value
greater than 1 can help mask readback latency, at the expense of video
memory.
AUTHORbugle is written and maintained by Bruce Merry.SEE ALSObugle(3), ppm(5), ffmpeg(1)
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