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
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 |
|