diff options
Diffstat (limited to 'drivers/media/video/ivtv/ivtv-ioctl.c')
| -rw-r--r-- | drivers/media/video/ivtv/ivtv-ioctl.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c index c13bd2aa0be..e8621da26d8 100644 --- a/drivers/media/video/ivtv/ivtv-ioctl.c +++ b/drivers/media/video/ivtv/ivtv-ioctl.c @@ -345,10 +345,8 @@ static int ivtv_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f pixfmt->priv = 0; if (id->type == IVTV_ENC_STREAM_TYPE_YUV) { pixfmt->pixelformat = V4L2_PIX_FMT_HM12; - /* YUV size is (Y=(h*w) + UV=(h*(w/2))) */ - pixfmt->sizeimage = - pixfmt->height * pixfmt->width + - pixfmt->height * (pixfmt->width / 2); + /* YUV size is (Y=(h*720) + UV=(h*(720/2))) */ + pixfmt->sizeimage = pixfmt->height * 720 * 3 / 2; pixfmt->bytesperline = 720; } else { pixfmt->pixelformat = V4L2_PIX_FMT_MPEG; @@ -469,11 +467,17 @@ static int ivtv_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format struct ivtv *itv = id->itv; int w = fmt->fmt.pix.width; int h = fmt->fmt.pix.height; + int min_h = 2; w = min(w, 720); w = max(w, 2); + if (id->type == IVTV_ENC_STREAM_TYPE_YUV) { + /* YUV height must be a multiple of 32 */ + h &= ~0x1f; + min_h = 32; + } h = min(h, itv->is_50hz ? 576 : 480); - h = max(h, 2); + h = max(h, min_h); ivtv_g_fmt_vid_cap(file, fh, fmt); fmt->fmt.pix.width = w; fmt->fmt.pix.height = h; |