Create and initialize a bitstream filter context given a bitstream
filter name.
The returned context must be freed with av_bitstream_filter_close().
@param name the name of the bitstream filter
@return a bitstream filter context if a matching filter was found
and successfully initialized, NULL otherwise
Create and initialize a bitstream filter context given a bitstream filter name.
The returned context must be freed with av_bitstream_filter_close().
@param name the name of the bitstream filter @return a bitstream filter context if a matching filter was found and successfully initialized, NULL otherwise