V4L/DVB (6086): ivtv: fix output mode processing: UDMA_YUV wasn't cleared

- Always clear when stopping the decoder
- Clear if the filehandle that is being close was used for UDMA_YUV output.
Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

drivers/media/video/ivtv/ivtv-driver.h

@@ -517,6 +517,7 @@ struct ivtv_stream {
 struct ivtv_open_id {
 	u32 open_id;
 	int type;
+	int yuv_frames;
 	enum v4l2_priority prio;
 	struct ivtv *itv;
 };

drivers/media/video/ivtv/ivtv-fileops.c

@@ -757,6 +757,7 @@ static void ivtv_stop_decoding(struct ivtv_open_id *id, int flags, u64 pts)
 		IVTV_DEBUG_INFO("close stopping decode\n");
 
 		ivtv_stop_v4l2_decode_stream(s, flags, pts);
+		itv->output_mode = OUT_NONE;
 	}
 	clear_bit(IVTV_F_S_APPL_IO, &s->s_flags);
 	clear_bit(IVTV_F_S_STREAMOFF, &s->s_flags);
@@ -764,11 +765,7 @@ static void ivtv_stop_decoding(struct ivtv_open_id *id, int flags, u64 pts)
 		/* Restore registers we've changed & clean up any mess we've made */
 		ivtv_yuv_close(itv);
 	}
-	if (s->type == IVTV_DEC_STREAM_TYPE_YUV && itv->output_mode == OUT_YUV)
-		itv->output_mode = OUT_NONE;
-	else if (s->type == IVTV_DEC_STREAM_TYPE_YUV && itv->output_mode == OUT_UDMA_YUV)
-		itv->output_mode = OUT_NONE;
-	else if (s->type == IVTV_DEC_STREAM_TYPE_MPG && itv->output_mode == OUT_MPG)
+	if (itv->output_mode == OUT_UDMA_YUV && id->yuv_frames)
 		itv->output_mode = OUT_NONE;
 
 	itv->speed = 0;

drivers/media/video/ivtv/ivtv-ioctl.c

@@ -1346,6 +1346,8 @@ static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
 			ivtv_release_stream(s);
 			return -EBUSY;
 		}
+		/* Mark that this file handle started the UDMA_YUV mode */
+		id->yuv_frames = 1;
 		if (args->y_source == NULL)
 			return 0;
 		return ivtv_yuv_prep_frame(itv, args);