[PATCH] V4L: Bttv bytes per line fix

bttv bytes per line fix.

Signed-off-by: Michael H. Schimek <mschimek@gmx.at>
Signed-off-by: Nickolay V. Shmyrev <nshmyrev@yandex.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 23 insertions, 11 deletions

diff --git a/drivers/media/video/bttv-driver.c b/drivers/media/video/bttv-driver.c
index f9d581cd31db..fdaff5bd6331 100644
--- a/drivers/media/video/bttv-driver.c
+++ b/drivers/media/video/bttv-driver.c
@@ -2029,19 +2029,33 @@ static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
         return 0;
 }
 
+static void
+pix_format_set_size     (struct v4l2_pix_format *       f,
+                         const struct bttv_format *     fmt,
+                         unsigned int                   width,
+                         unsigned int                   height)
+{
+        f->width = width;
+        f->height = height;
+
+        if (fmt->flags & FORMAT_FLAGS_PLANAR) {
+                f->bytesperline = width; /* Y plane */
+                f->sizeimage = (width * height * fmt->depth) >> 3;
+        } else {
+                f->bytesperline = (width * fmt->depth) >> 3;
+                f->sizeimage = height * f->bytesperline;
+        }
+}
+
 static int bttv_g_fmt(struct bttv_fh *fh, struct v4l2_format *f)
 {
         switch (f->type) {
         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
                 memset(&f->fmt.pix,0,sizeof(struct v4l2_pix_format));
-                f->fmt.pix.width        = fh->width;
-                f->fmt.pix.height       = fh->height;
+                pix_format_set_size (&f->fmt.pix, fh->fmt,
+                                     fh->width, fh->height);
                 f->fmt.pix.field        = fh->cap.field;
                 f->fmt.pix.pixelformat  = fh->fmt->fourcc;
-                f->fmt.pix.bytesperline =
-                        (f->fmt.pix.width * fh->fmt->depth) >> 3;
-                f->fmt.pix.sizeimage =
-                        f->fmt.pix.height * f->fmt.pix.bytesperline;
                 return 0;
         case V4L2_BUF_TYPE_VIDEO_OVERLAY:
                 memset(&f->fmt.win,0,sizeof(struct v4l2_window));
@@ -2106,11 +2120,9 @@ static int bttv_try_fmt(struct bttv_fh *fh, struct bttv *btv,
                         f->fmt.pix.width = maxw;
                 if (f->fmt.pix.height > maxh)
                         f->fmt.pix.height = maxh;
-                f->fmt.pix.width &= ~0x03;
-                f->fmt.pix.bytesperline =
-                        (f->fmt.pix.width * fmt->depth) >> 3;
-                f->fmt.pix.sizeimage =
-                        f->fmt.pix.height * f->fmt.pix.bytesperline;
+                pix_format_set_size (&f->fmt.pix, fmt,
+                                     f->fmt.pix.width & ~3,
+                                     f->fmt.pix.height);
 
                 return 0;
         }