diff options
| author | Hans Verkuil <hverkuil@xs4all.nl> | 2007-10-12 12:39:36 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-10-22 12:01:46 -0200 |
| commit | 34ca7d3791c6a467ff6810a149bdf78be086c23a (patch) | |
| tree | 60021022df00a9e1639659ac81a01ff0e2dbe943 /drivers/media | |
| parent | 6659e3ed559db2e730947268f9d57869b7a9016c (diff) | |
| download | linux-34ca7d3791c6a467ff6810a149bdf78be086c23a.tar.bz2 | |
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 <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | 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 206eee7542db..fd6826f472e3 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); } |