linux/drivers/media/test-drivers/vivid/vivid-kthread-cap.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * vivid-kthread-cap.h - video/vbi capture thread support functions.
 *
 * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
 */

#ifndef _VIVID_KTHREAD_CAP_H_
#define _VIVID_KTHREAD_CAP_H_

int vivid_start_generating_vid_cap(struct vivid_dev *dev, bool *pstreaming);
void vivid_stop_generating_vid_cap(struct vivid_dev *dev, bool *pstreaming);

#endif
media: vivid: add SPDX license info Replace the old license information with the corresponding SPDX license. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> 2018-02-07 14:12:45 +00:00			`/* SPDX-License-Identifier: GPL-2.0-only */`
[media] vivid: add the kthread code that controls the video rate Add the kthread handlers for video/vbi capture and video/vbi output. These carefully control the rate at which frames are generated (video capture) and accepted (video output). While the short-term jitter is around the order of a jiffie, in the long term the rate matches the configured framerate exactly. The capture thread handler also takes care of the video looping and of capture and overlay support. This is probably the most complex part of this driver due to the many combinations of crop, compose and scaling on the input and output, and the blending that has to be done if overlay support is enabled as well. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com> 2014-08-25 11:00:20 +00:00			`/*`
			`* vivid-kthread-cap.h - video/vbi capture thread support functions.`
			`*`
			`* Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.`
			`*/`

			`#ifndef _VIVID_KTHREAD_CAP_H_`
			`#define _VIVID_KTHREAD_CAP_H_`

			`int vivid_start_generating_vid_cap(struct vivid_dev dev, bool pstreaming);`
			`void vivid_stop_generating_vid_cap(struct vivid_dev dev, bool pstreaming);`

			`#endif`