Matthew Waters
21b232ce30
closedcaption: write 0x00 padding instead of 0x80 in cc_data/cdp
...
Depending on the exact output format, 0x00 may be a better default for
padding than 0x80. 0x00 is the recommended padding value when used in
CDP (and cc_data) but is not when used in s334-1a. See CTA-708-E 4.3.5
amd SMPTE 334-1-2007 5.3.2.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4578 >
2023-05-10 00:52:01 +00:00
Matthew Waters
262be30b6f
ccutils: generate valid padding in field 1 when needing to generate field 2
...
Fixes CC in Field 2 but not in Field 1 errors.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4490 >
2023-04-26 20:43:13 +00:00
Matthew Waters
be72fbc334
cccombiner: fix output-padding=false for a cea608 field 1 only stream
...
If we have data that needs outputting but we have to output padding to
meet the alternating field requirements of cea608, then output that
padding anyway.
Also includes a test
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4124 >
2023-03-08 11:11:05 +00:00
Matthew Waters
e2ff6b61ce
cccombiner: initial implementation of using CCBuffer helper
...
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3211 >
2022-11-10 00:52:14 +00:00
Matthew Waters
088597b430
closedcaption: move CC buffering to helper object
...
Move most of the interesting code from ccconverter to this new helper
object.
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3211 >
2022-11-10 00:52:14 +00:00
Matthew Waters
06a20f9243
closedcaption: move cdp->cc_data into shared location
...
So it can be used by both ccconverter and cccombiner
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3211 >
2022-11-10 00:52:14 +00:00
Matthew Waters
fde92ec43f
closedcaption: move cc_data->cdp to shared file
...
Used by both ccconverter and cccombiner
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3211 >
2022-11-10 00:52:14 +00:00
Matthew Waters
067185e7da
closedcaption: move cdp framerate table to common file
...
shared by both cccombiner and ccconverter
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3211 >
2022-11-10 00:52:14 +00:00
