Raspivid Options; Raspiyuv Options - Raspberry Pi A User Manual

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Raspivid Options

Designed to capture moving images,
to

Raspiyuv Options

Raspiyuv
image—YUV or RGB. Most users will be better off using
image formats ready for use; those who plan to edit their images further after capture, how-
ever, may find
Most
. These options are listed below.
raspistill
-b or --bitrate (Encoding Bitrate)—Sets the bitrate of the captured video, in bits per
❍
second (BPS.) The higher the bitrate, the higher the quality of the finished video—but
the larger the file size. Unless you have a specific requirement from your video, this
should typically be left at the default setting.
-e or --penc (Encoding Preview)—Uses the preview window to show video frames after
❍
they have been passed through the encoder, rather than before. Provides an accurate pre-
view of the final video, and most commonly used when tweaking the Encoding Bitrate.
-fps or –-framerate (Video Framerate)—Sets the framerate of the captured video,
❍
in frames per second. Higher figures give smoother motion, while lower figures take up
less disk space. Recording at a rate above 30 frames per second, which can be turned
into slow-motion video with a video editing application, will likely only work at lower
resolutions (set with the
-g or --intra (Intra Refresh Period)—Sets how often a key frame, also known as an
❍
intra-coded picture or I frame, should be captured. A key frame is an entire image,
rather than the changes recorded since the last image. More frequent key frames can
result in higher quality video when recording rapidly changing scenes, but will result in
larger file sizes.
is an application designed to capture one of two specific formats of colour
raspiyuv
options are the same as found on
raspiyuv
-rgb or --rgb (Capture RGB)—Sets
❍
pixel data rather than the chrominance and luminance normally used.
P A R T V
A P P E N D I X E S
has some specific options that do not apply
raspivid
and
--width --height
a useful tool.
raspistill
raspiyuv
options).
, which outputs into
raspistill
with the following exception:
to capture red, green, blue (RGB)