diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-core.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c index a41cc556677..258041d0be9 100644 --- a/drivers/media/video/em28xx/em28xx-core.c +++ b/drivers/media/video/em28xx/em28xx-core.c @@ -782,11 +782,15 @@ int em28xx_resolution_set(struct em28xx *dev) em28xx_accumulator_set(dev, 1, (width - 4) >> 2, 1, (height - 4) >> 2); - /* If we don't set the start position to 4 in VBI mode, we end up - with line 21 being YUYV encoded instead of being in 8-bit - greyscale */ + /* If we don't set the start position to 2 in VBI mode, we end up + with line 20/21 being YUYV encoded instead of being in 8-bit + greyscale. The core of the issue is that line 21 (and line 23 for + PAL WSS) are inside of active video region, and as a result they + get the pixelformatting associated with that area. So by cropping + it out, we end up with the same format as the rest of the VBI + region */ if (em28xx_vbi_supported(dev) == 1) - em28xx_capture_area_set(dev, 0, 4, width >> 2, height >> 2); + em28xx_capture_area_set(dev, 0, 2, width >> 2, height >> 2); else em28xx_capture_area_set(dev, 0, 0, width >> 2, height >> 2); |