Shooting Video for Streaming
13
Shooting Video for Streaming
Carefully shooting and editing video for streaming can substantially improve the final quality
of the video. The general tips that follow are aimed at creating video that encodes and streams
well. For details on choosing encoding parameters and using video and audio processing to
improve encoding, see “Encoding” on page 141 and “Pre-processing” on page 61.
The overall goal in producing video that encodes well is to create the highest-quality video
signal with the least amount of noise, camera movement and fine detail. This helps the source
encode as efficiently as possible and look good at smaller image sizes. In order to create a good
video source, you should use a high-quality camera, light the subjects well, and stabilize the
camera with a tripod when possible. When editing material for streaming, you can improve
encoding by avoiding certain types of transitions and keeping scene changes to a minimum.
For the best results, shoot tests of the source material and run it through the entire production
process before you shoot the whole project. It is important to view the final results on the
desktop as they will appear in the final project. Your image may look great when filmed and
edited, but might look less optimal after resizing and encoding. Early and thorough testing can
help spare you painful and expensive reshoots.
Shooting Techniques
Just as the camera makes a difference to the quality of the final stream, so does the way in which
you shoot the source material. Below are some of the more important things you can do to
produce higher-quality material.
Reduce Movement
Using a tripod makes a dramatic impact in the quality of the final movie. Tripods keep the
camera steady, which reduces the differences between frames and therefore improves the
compression of the video.
Be sure to use a sufficiently heavy tripod for the camera. If you plan to pan the camera during
filming, use a high-quality fluid-head tripod and keep the pan smooth and slow. Irregular or
jerky camera motion is hard to encode. Avoid zooms whenever possible — these are hard to
encode because they introduce a high level of change over the entire image.
Avoid hand-held shooting if possible. If you need to film a hand-held shot, a motion stabilizer,
such as a Steadicam® or gyro, can improve the results. If the camera has an image-stabilization
option (either optical or electronic), you should generally use this feature to reduce subtle
changes between frames from camera motion.
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