get_sample_index

Gets the sample that is at the given index for the given tag in the given list and copies it into the variable pointed to by sample .

Free the sample with gst_sample_unref when it is no longer needed. You can retrieve the buffer from the sample using get_buffer and the associated caps (if any) with get_caps.

Free-function: gst_sample_unref

Parameters:

this	a TagList to get the tag from
tag	tag to read out
index	number of entry to read out
sample	address of a GstSample pointer variable to store the result into

Returns:

true, if a sample was copied, false if the tag didn't exist in the given list or if it was null.