Opened 18 years ago
Closed 18 years ago
#1399 closed defect (fixed)
NTSC closed captioning on saa7134
Reported by: | Owned by: | danielk | |
---|---|---|---|
Priority: | minor | Milestone: | 0.20 |
Component: | mythtv | Version: | head |
Severity: | medium | Keywords: | |
Cc: | Ticket locked: | no |
Description
Please include a patch like this in MythTV. It replaces some hardcoded NTSC closed caption decoder timings with timings calculated from the card's actual VBI sampling rate, much like zvbi does. The rounding I added should make sure the calculations on a bttv card yields the exact same values as were previously used. So it shouldn't have any effect on bttv - but for saa7134, it makes a world of difference. (A world of understanding of what people are saying on TV...)
bttv:
- sampling rate: 28636363
- samples per line: 2048
- sample format: 12
- start: 10, 273
- count: 16, 16
- flags: 0x0
saa7134:
- sampling rate: 27000000
- samples per line: 2048
- sample format: 12
- start: 10, 273
- count: 12, 12
- flags: 0x0
(Put the above data into the related comment in NuppelVideoRecorder?.cpp if you wish.)
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Change History (3)
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Patch to libmythtv