From 34ca7d3791c6a467ff6810a149bdf78be086c23a Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 12 Oct 2007 12:39:36 -0300 Subject: [PATCH] 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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/ivtv/ivtv-ioctl.c | 13 ++++++++----- 1 file 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); } -- 2.7.4