Compute a function on frames of multiple videos:

If one video is longer than the other, use the VideoPadding option to control how the shorter one is padded:

The function f receives an Association holding data for each partition:

Check the keys of the provided association:

Process individual video frames:

Plot the result:

The function f can operate on the audio data, provided as an Audio object:

Compute time-synchronous measurements on both image and audio data:

Plot the result:

Process partitions corresponding to four frames:

Specify a partition size using a time Quantity:

By default, the offset of one frame is used:

Use an offset of four frames:

Specify an offset using a time Quantity:

Specify an offset proportional to the partition size by a Scaled amount:

By default, the time stamps are aligned with the center of each partition and correspond to the value of the "Time" key:

Use AlignmentRight to return the computed property at the end of each partition:

Use a custom alignment ranging from –1 (left) to 1 (right):

The boundaries of each partition are the start time for the first frame and the end time for the last frame of the partition. They can be queried using the "TimeInterval" key:

When a video track is shorter than other tracks, black frames are used beyond its duration:

Use VideoPadding to specify a different color padding:

Use "Fixed" padding to repeat the last frame:

When using a partition size larger than 1, black frames are used for the last partitions:

Use no padding, resulting in partitions of different lengths: