提交 9e0df402 编写于 作者: I Ian Armstrong 提交者: Mauro Carvalho Chehab

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: NIan Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>
上级 59fc7f52
......@@ -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;
......
......@@ -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;
......
......@@ -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) ||
......
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