diff options
| -rw-r--r-- | drivers/media/video/ivtv/ivtv-yuv.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/media/video/ivtv/ivtv-yuv.c b/drivers/media/video/ivtv/ivtv-yuv.c index bcea09542e5a..70ddf4060d37 100644 --- a/drivers/media/video/ivtv/ivtv-yuv.c +++ b/drivers/media/video/ivtv/ivtv-yuv.c @@ -898,8 +898,21 @@ static void ivtv_yuv_init (struct ivtv *itv) itv->yuv_info.decode_height = 480; /* If no visible size set, assume full size */ - if (!itv->yuv_info.osd_vis_w) itv->yuv_info.osd_vis_w = 720 - itv->yuv_info.osd_x_offset; - if (!itv->yuv_info.osd_vis_h) itv->yuv_info.osd_vis_h = itv->yuv_info.decode_height - itv->yuv_info.osd_y_offset; + if (!itv->yuv_info.osd_vis_w) + itv->yuv_info.osd_vis_w = 720 - itv->yuv_info.osd_x_offset; + + if (!itv->yuv_info.osd_vis_h) { + itv->yuv_info.osd_vis_h = itv->yuv_info.decode_height - itv->yuv_info.osd_y_offset; + } else { + /* If output video standard has changed, requested height may + not be legal */ + if (itv->yuv_info.osd_vis_h + itv->yuv_info.osd_y_offset > itv->yuv_info.decode_height) { + IVTV_DEBUG_WARN("Clipping yuv output - fb size (%d) exceeds video standard limit (%d)\n", + itv->yuv_info.osd_vis_h + itv->yuv_info.osd_y_offset, + itv->yuv_info.decode_height); + itv->yuv_info.osd_vis_h = itv->yuv_info.decode_height - itv->yuv_info.osd_y_offset; + } + } /* We need a buffer for blanking when Y plane is offset - non-fatal if we can't get one */ itv->yuv_info.blanking_ptr = kzalloc(720*16,GFP_KERNEL); |