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authorIan Armstrong <ian@iarmst.demon.co.uk>2008-04-22 14:42:14 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-04-24 14:07:44 -0300
commit88ab075aee974f70b7b0273a964810698c8a5b95 (patch)
tree7ef505be831d742b59fb8ed6f5d84a2894dc5ce9 /drivers/media/video/ivtv
parent520ebe5f72ff450d7a73e8f669190254a5836093 (diff)
V4L/DVB (7243): ivtv: yuv framebuffer tracking
The existing yuv code limits output to the display area occupied by the framebuffer. This patch allows the yuv output to be 'detached' via V4L2_FBUF_FLAG_OVERLAY. By default, the yuv output window will be restricted to the framebuffer dimensions and the output position is relative to the top left corner of the framebuffer. This matches the behaviour of previous versions. If V4L2_FBUF_FLAG_OVERLAY is cleared, the yuv output will no longer be linked to the framebuffer. The maximum dimensions are either 720x576 or 720x480 depending on the current broadcast standard, with the output position relative to the top left corner of the display. The framebuffer itself can be resized, moved and panned without affecting the yuv output. 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/media/video/ivtv')
-rw-r--r--drivers/media/video/ivtv/ivtv-driver.c1
-rw-r--r--drivers/media/video/ivtv/ivtv-driver.h2
-rw-r--r--drivers/media/video/ivtv/ivtv-ioctl.c25
-rw-r--r--drivers/media/video/ivtv/ivtv-yuv.c32
4 files changed, 38 insertions, 22 deletions
diff --git a/drivers/media/video/ivtv/ivtv-driver.c b/drivers/media/video/ivtv/ivtv-driver.c
index b533188c943..d0bb5b18797 100644
--- a/drivers/media/video/ivtv/ivtv-driver.c
+++ b/drivers/media/video/ivtv/ivtv-driver.c
@@ -711,6 +711,7 @@ static int __devinit ivtv_init_struct1(struct ivtv *itv)
itv->yuv_info.lace_mode = ivtv_yuv_mode;
itv->yuv_info.lace_threshold = ivtv_yuv_threshold;
itv->yuv_info.max_frames_buffered = 3;
+ itv->yuv_info.track_osd = 1;
return 0;
}
diff --git a/drivers/media/video/ivtv/ivtv-driver.h b/drivers/media/video/ivtv/ivtv-driver.h
index 536140f0c19..ba06e813c58 100644
--- a/drivers/media/video/ivtv/ivtv-driver.h
+++ b/drivers/media/video/ivtv/ivtv-driver.h
@@ -456,6 +456,8 @@ struct yuv_playback_info
int v_filter_2;
int h_filter;
+ u8 track_osd; /* Should yuv output track the OSD size & position */
+
u32 osd_x_offset;
u32 osd_y_offset;
diff --git a/drivers/media/video/ivtv/ivtv-ioctl.c b/drivers/media/video/ivtv/ivtv-ioctl.c
index edef2a57961..f562cbbadc1 100644
--- a/drivers/media/video/ivtv/ivtv-ioctl.c
+++ b/drivers/media/video/ivtv/ivtv-ioctl.c
@@ -712,6 +712,7 @@ static int ivtv_debug_ioctls(struct file *filp, unsigned int cmd, void *arg)
int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void *arg)
{
struct ivtv_open_id *id = NULL;
+ struct yuv_playback_info *yi = &itv->yuv_info;
u32 data[CX2341X_MBOX_MAX_DATA];
int streamtype = 0;
@@ -837,8 +838,14 @@ int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void
cropcap->pixelaspect.numerator = itv->is_50hz ? 59 : 10;
cropcap->pixelaspect.denominator = itv->is_50hz ? 54 : 11;
} else if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) {
- cropcap->bounds.width = itv->yuv_info.osd_full_w;
- cropcap->bounds.height = itv->yuv_info.osd_full_h;
+ if (yi->track_osd) {
+ cropcap->bounds.width = yi->osd_full_w;
+ cropcap->bounds.height = yi->osd_full_h;
+ } else {
+ cropcap->bounds.width = 720;
+ cropcap->bounds.height =
+ itv->is_out_50hz ? 576 : 480;
+ }
cropcap->pixelaspect.numerator = itv->is_out_50hz ? 59 : 10;
cropcap->pixelaspect.denominator = itv->is_out_50hz ? 54 : 11;
} else {
@@ -856,7 +863,7 @@ int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void
if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) {
if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) {
- itv->yuv_info.main_rect = crop->c;
+ yi->main_rect = crop->c;
return 0;
} else {
if (!ivtv_vapi(itv, CX2341X_OSD_SET_FRAMEBUFFER_WINDOW, 4,
@@ -878,7 +885,7 @@ int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void
if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) {
if (streamtype == IVTV_DEC_STREAM_TYPE_YUV)
- crop->c = itv->yuv_info.main_rect;
+ crop->c = yi->main_rect;
else
crop->c = itv->main_rect;
return 0;
@@ -1070,11 +1077,10 @@ int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void
itv->main_rect.height = itv->params.height;
ivtv_vapi(itv, CX2341X_OSD_SET_FRAMEBUFFER_WINDOW, 4,
720, itv->main_rect.height, 0, 0);
- itv->yuv_info.main_rect = itv->main_rect;
+ yi->main_rect = itv->main_rect;
if (!itv->osd_info) {
- itv->yuv_info.osd_full_w = 720;
- itv->yuv_info.osd_full_h =
- itv->is_out_50hz ? 576 : 480;
+ yi->osd_full_w = 720;
+ yi->osd_full_h = itv->is_out_50hz ? 576 : 480;
}
}
break;
@@ -1272,6 +1278,8 @@ int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void
else
fb->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
}
+ if (yi->track_osd)
+ fb->flags |= V4L2_FBUF_FLAG_OVERLAY;
break;
}
@@ -1285,6 +1293,7 @@ int ivtv_v4l2_ioctls(struct ivtv *itv, struct file *filp, unsigned int cmd, void
(fb->flags & (V4L2_FBUF_FLAG_LOCAL_ALPHA|V4L2_FBUF_FLAG_LOCAL_INV_ALPHA)) != 0;
itv->osd_chroma_key_state = (fb->flags & V4L2_FBUF_FLAG_CHROMAKEY) != 0;
ivtv_set_osd_alpha(itv);
+ yi->track_osd = (fb->flags & V4L2_FBUF_FLAG_OVERLAY) != 0;
break;
}
diff --git a/drivers/media/video/ivtv/ivtv-yuv.c b/drivers/media/video/ivtv/ivtv-yuv.c
index 8fdd67cef74..393d917cd67 100644
--- a/drivers/media/video/ivtv/ivtv-yuv.c
+++ b/drivers/media/video/ivtv/ivtv-yuv.c
@@ -718,9 +718,11 @@ static u32 ivtv_yuv_window_setup(struct ivtv *itv, struct yuv_frame_info *f)
f->src_w -= (osd_scale * osd_crop) >> 16;
}
- /* The OSD can be moved. Track to it */
- f->dst_x += itv->yuv_info.osd_x_offset;
- f->dst_y += itv->yuv_info.osd_y_offset;
+ if (itv->yuv_info.track_osd) {
+ /* The OSD can be moved. Track to it */
+ f->dst_x += itv->yuv_info.osd_x_offset;
+ f->dst_y += itv->yuv_info.osd_y_offset;
+ }
/* Width & height for both src & dst must be even.
Same for coordinates. */
@@ -792,11 +794,19 @@ void ivtv_yuv_work_handler(struct ivtv *itv)
IVTV_DEBUG_YUV("Update yuv registers for frame %d\n", frame);
f = yi->new_frame_info[frame];
- /* Update the osd pan info */
- f.pan_x = yi->osd_x_pan;
- f.pan_y = yi->osd_y_pan;
- f.vis_w = yi->osd_vis_w;
- f.vis_h = yi->osd_vis_h;
+ if (yi->track_osd) {
+ /* Snapshot the osd pan info */
+ f.pan_x = yi->osd_x_pan;
+ f.pan_y = yi->osd_y_pan;
+ f.vis_w = yi->osd_vis_w;
+ f.vis_h = yi->osd_vis_h;
+ } else {
+ /* Not tracking the osd, so assume full screen */
+ f.pan_x = 0;
+ f.pan_y = 0;
+ f.vis_w = 720;
+ f.vis_h = yi->decode_height;
+ }
/* Calculate the display window coordinates. Exit if nothing left */
if (!(yuv_update = ivtv_yuv_window_setup(itv, &f)))
@@ -965,12 +975,6 @@ static void ivtv_yuv_setup_frame(struct ivtv *itv, struct ivtv_dma_frame *args)
/* Are we going to offset the Y plane */
nf->offset_y = (nf->tru_h + nf->src_x < 512 - 16) ? 1 : 0;
- /* Snapshot the osd pan info */
- nf->pan_x = yi->osd_x_pan;
- nf->pan_y = yi->osd_y_pan;
- nf->vis_w = yi->osd_vis_w;
- nf->vis_h = yi->osd_vis_h;
-
nf->update = 0;
nf->interlaced_y = 0;
nf->interlaced_uv = 0;