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authorIan Armstrong <ian@iarmst.demon.co.uk>2007-03-16 07:44:42 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2007-04-27 15:44:48 -0300
commit9e0df402e695e638dfee94a6e05fca48b15404e6 (patch)
treeb4f91692f6c13fdf2b6a788cecc59aa05393730b /drivers
parent59fc7f52898fb35eb053bc7b54430d81629b5966 (diff)
V4L/DVB (5438): Fix ivtv yuv threshold handling
Modifies automatic mode selection for yuv playback. Behaviour is now that source video with a vertical resolution below that of the currently set broadcast mode will be treated as progressive. Video with a vertical resolution greater or equal to the current broadcast mode (up to 576 lines) will be treated as interlaced. Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/video/ivtv/ivtv-driver.c2
-rw-r--r--drivers/media/video/ivtv/ivtv-driver.h1
-rw-r--r--drivers/media/video/ivtv/ivtv-yuv.c9
3 files changed, 7 insertions, 5 deletions
diff --git a/drivers/media/video/ivtv/ivtv-driver.c b/drivers/media/video/ivtv/ivtv-driver.c
index 8b5597ff3cd..45b9328a538 100644
--- a/drivers/media/video/ivtv/ivtv-driver.c
+++ b/drivers/media/video/ivtv/ivtv-driver.c
@@ -116,7 +116,7 @@ static int dec_yuv_buffers = IVTV_DEFAULT_DEC_YUV_BUFFERS;
static int dec_vbi_buffers = IVTV_DEFAULT_DEC_VBI_BUFFERS;
static int ivtv_yuv_mode = 0;
-static int ivtv_yuv_threshold=480;
+static int ivtv_yuv_threshold=-1;
static int ivtv_pci_latency = 1;
int ivtv_debug = 0;
diff --git a/drivers/media/video/ivtv/ivtv-driver.h b/drivers/media/video/ivtv/ivtv-driver.h
index ce28923a5c9..9a412d6c6d0 100644
--- a/drivers/media/video/ivtv/ivtv-driver.h
+++ b/drivers/media/video/ivtv/ivtv-driver.h
@@ -606,7 +606,6 @@ struct yuv_playback_info
int lace_mode;
int lace_threshold;
- int lace_threshold_last;
int lace_sync_field;
atomic_t next_dma_frame;
diff --git a/drivers/media/video/ivtv/ivtv-yuv.c b/drivers/media/video/ivtv/ivtv-yuv.c
index 286a0d7e720..bcea09542e5 100644
--- a/drivers/media/video/ivtv/ivtv-yuv.c
+++ b/drivers/media/video/ivtv/ivtv-yuv.c
@@ -613,16 +613,19 @@ static void ivtv_yuv_handle_vertical(struct ivtv *itv, struct yuv_frame_info *wi
}
itv->yuv_info.frame_interlaced_last = itv->yuv_info.frame_interlaced;
- itv->yuv_info.lace_threshold_last = itv->yuv_info.lace_threshold;
}
/* Modify the supplied coordinate information to fit the visible osd area */
static u32 ivtv_yuv_window_setup (struct ivtv *itv, struct yuv_frame_info *window)
{
- int osd_crop;
+ int osd_crop, lace_threshold;
u32 osd_scale;
u32 yuv_update = 0;
+ lace_threshold = itv->yuv_info.lace_threshold;
+ if (lace_threshold < 0)
+ lace_threshold = itv->yuv_info.decode_height - 1;
+
/* Work out the lace settings */
switch (itv->yuv_info.lace_mode) {
case IVTV_YUV_MODE_PROGRESSIVE: /* Progressive mode */
@@ -639,7 +642,7 @@ static u32 ivtv_yuv_window_setup (struct ivtv *itv, struct yuv_frame_info *windo
break;
case IVTV_YUV_MODE_AUTO:
- if (window->tru_h <= itv->yuv_info.lace_threshold || window->tru_h > 576 || window->tru_w > 720){
+ if (window->tru_h <= lace_threshold || window->tru_h > 576 || window->tru_w > 720){
itv->yuv_info.frame_interlaced = 0;
if ((window->tru_h < 512) ||
(window->tru_h > 576 && window->tru_h < 1021) ||