videoparsers: centralize user data parsing
This MR creates a common gstvideoparseutils.c
file to handle parsing of closed captions, AFD and Bar data for any parser.
- support SCTE 21 closed captions
- support DirecTV closed captions
- support AFD and Bar data parsing
mpegvideoparse
, h264parse
and h265parse
parsers use common code in this MR.
Some test files for various closed caption formats can be found here
Edited by Aaron Boxer