Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=34ca7d3791c6a467ff6810a149bdf78be086c23a
Commit: 34ca7d3791c6a467ff6810a149bdf78be086c23a
Parent: 6659e3ed559db2e730947268f9d57869b7a9016c
Author: Hans Verkuil <[EMAIL PROTECTED]>
AuthorDate: Fri Oct 12 12:39:36 2007 -0300
Committer: Mauro Carvalho Chehab <[EMAIL PROTECTED]>
CommitDate: Mon Oct 22 12:01:46 2007 -0200
V4L/DVB (6341): ivtv: fix resizing MPEG1 streams
Resizing an MPEG 1 stream would cut off the right half of the
image due to a missing divide by 2 in VIDIOC_S_FMT.
Also did some minor cleanup in this part of the code.
Signed-off-by: Hans Verkuil <[EMAIL PROTECTED]>
Signed-off-by: Mauro Carvalho Chehab <[EMAIL PROTECTED]>
---
drivers/media/video/ivtv/ivtv-ioctl.c | 13 ++++++++-----
1 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c
b/drivers/media/video/ivtv/ivtv-ioctl.c
index 206eee7..fd6826f 100644
--- a/drivers/media/video/ivtv/ivtv-ioctl.c
+++ b/drivers/media/video/ivtv/ivtv-ioctl.c
@@ -555,6 +555,7 @@ static int ivtv_try_or_set_fmt(struct ivtv *itv, int
streamtype,
/* set window size */
if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ struct cx2341x_mpeg_params *p = &itv->params;
int w = fmt->fmt.pix.width;
int h = fmt->fmt.pix.height;
@@ -566,17 +567,19 @@ static int ivtv_try_or_set_fmt(struct ivtv *itv, int
streamtype,
fmt->fmt.pix.width = w;
fmt->fmt.pix.height = h;
- if (!set_fmt || (itv->params.width == w && itv->params.height
== h))
+ if (!set_fmt || (p->width == w && p->height == h))
return 0;
if (atomic_read(&itv->capturing) > 0)
return -EBUSY;
- itv->params.width = w;
- itv->params.height = h;
+ p->width = w;
+ p->height = h;
if (w != 720 || h != (itv->is_50hz ? 576 : 480))
- itv->params.video_temporal_filter = 0;
+ p->video_temporal_filter = 0;
else
- itv->params.video_temporal_filter = 8;
+ p->video_temporal_filter = 8;
+ if (p->video_encoding == V4L2_MPEG_VIDEO_ENCODING_MPEG_1)
+ fmt->fmt.pix.width /= 2;
itv->video_dec_func(itv, VIDIOC_S_FMT, fmt);
return ivtv_get_fmt(itv, streamtype, fmt);
}
-
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