If f is NULL, return the first registered bitstream filter, if f is non-NULL, return the next registered bitstream filter after f, or NULL if f is the last one.
This function can be used to iterate over all registered bitstream filters.
See Implementation
If f is NULL, return the first registered bitstream filter, if f is non-NULL, return the next registered bitstream filter after f, or NULL if f is the last one.
This function can be used to iterate over all registered bitstream filters.