Merge master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb

* master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (180 commits)
  V4L/DVB (4641): Trivial: use lowercase letters in hex subsystem ids
  V4L/DVB (4639): Cx88: add autodetection for alternate revision of Leadtek PVR
  V4L/DVB (4638): Basic DVB-T and analog TV support for the HVR1300.
  V4L/DVB (4637): Add a default method for VIDIOC_G_PARM
  V4L/DVB (4635): Extend bttv and saa7134 to check for both AGP and PCI PCI failure case
  V4L/DVB (4634): Zr36120: implement pcipci checks
  V4L/DVB (4632): Zoran: Implement pcipci failure check
  V4L/DVB (4631): Av7110: remove V4L2_CAP_VBI_CAPTURE flag
  V4L/DVB (4630): Av7110: FW_LOADER depemdency fixed
  V4L/DVB (4629): Saa7134: add card support for Proteus Pro 2309
  V4L/DVB (4628): Fix VIDIOC_ENUMSTD ioctl in videodev.c
  V4L/DVB (4627): Vivi crashes with mplayer
  V4L/DVB (4626): On saa7111/7113, LUMA_CTRL need a different value
  V4L/DVB (4624): Tvaudio: Replaced kernel_thread() with kthread_run()
  V4L/DVB (4622): Copy-paste bug in videodev.c
  V4L/DVB (4620): Fix AGC configuration for MOD3000P-based boards
  V4L/DVB (4619): Fixes some I2C dependencies on V4L devices
  V4L/DVB (4617): Problem with dibusb-mb.c USB IDs
  V4L/DVB (4616): [PATCH] Nebula DigiTV USB RC support
  V4L/DVB (4614): Export symbol saa7134_tvaudio_setmute from saa7134 for saa7134-alsa
  ...

1 files changed, 22 insertions, 3 deletions

diff --git a/drivers/media/video/cx2341x.c b/drivers/media/video/cx2341x.c
index 65f00fc08fa9..657e0b969145 100644
--- a/drivers/media/video/cx2341x.c
+++ b/drivers/media/video/cx2341x.c
@@ -691,7 +691,7 @@ void cx2341x_fill_defaults(struct cx2341x_mpeg_params *p)
 	.video_luma_spatial_filter_type = V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_1D_HOR,
 	.video_chroma_spatial_filter_type = V4L2_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE_1D_HOR,
 	.video_temporal_filter_mode = V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_MANUAL,
-	.video_temporal_filter = 0,
+	.video_temporal_filter = 8,
 	.video_median_filter_type = V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_OFF,
 	.video_luma_median_filter_top = 255,
 	.video_luma_median_filter_bottom = 0,
@@ -731,6 +731,7 @@ int cx2341x_update(void *priv, cx2341x_mbox_func func,
 	};
 
 	int err = 0;
+	u16 temporal = new->video_temporal_filter;
 
 	cx2341x_api(priv, func, CX2341X_ENC_SET_OUTPUT_PORT, 2, new->port, 0);
 
@@ -741,6 +742,7 @@ int cx2341x_update(void *priv, cx2341x_mbox_func func,
 
 	if (old == NULL || old->width != new->width || old->height != new->height ||
 			old->video_encoding != new->video_encoding) {
+		int is_scaling;
 		u16 w = new->width;
 		u16 h = new->height;
 
@@ -750,6 +752,20 @@ int cx2341x_update(void *priv, cx2341x_mbox_func func,
 		}
 		err = cx2341x_api(priv, func, CX2341X_ENC_SET_FRAME_SIZE, 2, h, w);
 		if (err) return err;
+
+		/* Adjust temporal filter if necessary. The problem with the temporal
+		   filter is that it works well with full resolution capturing, but
+		   not when the capture window is scaled (the filter introduces
+		   a ghosting effect). So if the capture window changed, and there is
+		   no updated filter value, then the filter is set depending on whether
+		   the new window is full resolution or not.
+
+		   For full resolution a setting of 8 really improves the video
+		   quality, especially if the original video quality is suboptimal. */
+		is_scaling = new->width != 720 || new->height != (new->is_50hz ? 576 : 480);
+		if (old && old->video_temporal_filter == temporal) {
+			temporal = is_scaling ? 0 : 8;
+		}
 	}
 
 	if (old == NULL || old->stream_type != new->stream_type) {
@@ -815,9 +831,9 @@ int cx2341x_update(void *priv, cx2341x_mbox_func func,
 	}
 	if (old == NULL ||
 		old->video_spatial_filter != new->video_spatial_filter ||
-		old->video_temporal_filter != new->video_temporal_filter) {
+		old->video_temporal_filter != temporal) {
 		err = cx2341x_api(priv, func, CX2341X_ENC_SET_DNR_FILTER_PROPS, 2,
-			new->video_spatial_filter, new->video_temporal_filter);
+			new->video_spatial_filter, temporal);
 		if (err) return err;
 	}
 	if (old == NULL || old->video_temporal_decimation != new->video_temporal_decimation) {
@@ -855,6 +871,9 @@ void cx2341x_log_status(struct cx2341x_mpeg_params *p, const char *prefix)
 	printk(KERN_INFO "%s: Stream: %s\n",
 		prefix,
 		cx2341x_menu_item(p, V4L2_CID_MPEG_STREAM_TYPE));
+	printk(KERN_INFO "%s: VBI Format: %s\n",
+		prefix,
+		cx2341x_menu_item(p, V4L2_CID_MPEG_STREAM_VBI_FMT));
 
 	/* Video */
 	printk(KERN_INFO "%s: Video:  %dx%d, %d fps\n",