rtpbasedepayload: provide chain_list function on sink pad
Implement a chain_list function, which avoids lots of locking compared to the default fallback implementation in GstPad. We may also want to do some more sophisticated timestamp tracking here at some point, but for now leave it up to the jitterbuffer and/or subclasses (in case buffers in the buffer list have no timestamp set on them, there may only be a timestamp for the whole list on the first buffer). This provides the exact same behaviour as the default fallback implementation.
Showing with 67 additions and 13 deletions