128c1f1430
drivers: video: add basic Video Stream support basic video stream and capture implementation based on the spresense SDK code release Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com> Approved-by: Gregory Nutt <gnutt@nuttx.org>
91 lines
3.6 KiB
C
91 lines
3.6 KiB
C
/****************************************************************************
|
|
* drivers/video/video_framebuff.h
|
|
*
|
|
* Copyright 2018 Sony Semiconductor Solutions Corporation
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name of Sony Semiconductor Solutions Corporation nor
|
|
* the names of its contributors may be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __VIDEO_VIDEO_FRAMEBUFF_H__
|
|
#define __VIDEO_VIDEO_FRAMEBUFF_H__
|
|
|
|
#include <nuttx/video/video.h>
|
|
#include <semaphore.h>
|
|
|
|
struct vbuf_container_s
|
|
{
|
|
struct v4l2_buffer buf; /* Buffer information */
|
|
struct vbuf_container_s *next; /* pointer to next buffer */
|
|
};
|
|
|
|
typedef struct vbuf_container_s vbuf_container_t;
|
|
|
|
struct video_framebuff_s
|
|
{
|
|
enum v4l2_buf_mode mode;
|
|
sem_t lock_empty;
|
|
int container_size;
|
|
vbuf_container_t *vbuf_alloced;
|
|
vbuf_container_t *vbuf_empty;
|
|
vbuf_container_t *vbuf_top;
|
|
vbuf_container_t *vbuf_tail;
|
|
vbuf_container_t *vbuf_dma;
|
|
vbuf_container_t *vbuf_next_dma;
|
|
};
|
|
|
|
typedef struct video_framebuff_s video_framebuff_t;
|
|
|
|
/* Buffer access interface. */
|
|
|
|
void video_framebuff_init
|
|
(video_framebuff_t *fbuf);
|
|
void video_framebuff_uninit
|
|
(video_framebuff_t *fbuf);
|
|
int video_framebuff_realloc_container
|
|
(video_framebuff_t *fbuf, int sz);
|
|
vbuf_container_t *video_framebuff_get_container
|
|
(video_framebuff_t *fbuf);
|
|
void video_framebuff_free_container
|
|
(video_framebuff_t *fbuf, vbuf_container_t *cnt);
|
|
void video_framebuff_queue_container
|
|
(video_framebuff_t *fbuf, vbuf_container_t *tgt);
|
|
vbuf_container_t *video_framebuff_dq_valid_container
|
|
(video_framebuff_t *fbuf);
|
|
vbuf_container_t *video_framebuff_get_dma_container
|
|
(video_framebuff_t *fbuf);
|
|
vbuf_container_t *video_framebuff_pop_curr_container
|
|
(video_framebuff_t *fbuf);
|
|
void video_framebuff_dma_done
|
|
(video_framebuff_t *fbuf);
|
|
void video_framebuff_change_mode
|
|
(video_framebuff_t *fbuf, enum v4l2_buf_mode mode);
|
|
|
|
#endif // __VIDEO_VIDEO_FRAMEBUFF_H__
|