Commit graph

4 commits

Author SHA1 Message Date
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
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
Mathieu Duponchelle
fa1805d531 cccombiner: stop attaching caption buffers when caption pad has gone EOS
When schedule is true (as is the case by default), we insert padding
when no caption data is present in the schedule queue, and previously
weren't checking whether the caption pad had gone EOS, leading to
infinite scheduling of padding after EOS on the caption pad.

Rectify that by adding a "drain" parameter to dequeue_caption()

In addition, update the captions_and_eos test to push valid cc_data
in: without this cccombiner was attaching padding buffers it had
generated itself, and with that patch would now stop attaching
said padding to the second buffer. By pushing valid, non-padding
cc_data we ensure a caption buffer is indeed attached to the first
and second video buffers.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1252>
2021-10-26 14:48:13 +00:00
Thibault Saunier
019971a3c7 Move files from gst-plugins-bad into the "subprojects/gst-plugins-bad/" subdir 2021-09-24 16:14:36 -03:00
Renamed from tests/check/elements/cccombiner.c (Browse further)