liboverlay/v4l2_utils.h

// Copyright 2009 Google Inc. All Rights Reserved.
// Author: rschultz@google.com (Rebecca Schultz Zavin)

#ifndef ANDROID_ZOOM_REPO_HARDWARE_TI_OMAP3_LIBOVERLAY_V4L2_UTILS_H_
#define ANDROID_ZOOM_REPO_HARDWARE_TI_OMAP3_LIBOVERLAY_V4L2_UTILS_H_

int v4l2_overlay_open(int id);
int v4l2_overlay_get_caps(int fd, struct v4l2_capability *caps);
int v4l2_overlay_req_buf(int fd, uint32_t *num_bufs, int cacheable_buffers);
int v4l2_overlay_query_buffer(int fd, int index, struct v4l2_buffer *buf);
int v4l2_overlay_map_buf(int fd, int index, void **start, size_t *len);
int v4l2_overlay_unmap_buf(void *start, size_t len);
int v4l2_overlay_stream_on(int fd);
int v4l2_overlay_stream_off(int fd);
int v4l2_overlay_q_buf(int fd, int index);
int v4l2_overlay_dq_buf(int fd, int *index);
int v4l2_overlay_init(int fd, uint32_t w, uint32_t h, uint32_t fmt);
int v4l2_overlay_get_input_size(int fd, uint32_t *w, uint32_t *h, uint32_t *fmt);
int v4l2_overlay_set_position(int fd, int32_t x, int32_t y, int32_t w,
                              int32_t h);
int v4l2_overlay_get_position(int fd, int32_t *x, int32_t *y, int32_t *w,
                              int32_t *h);
int v4l2_overlay_set_crop(int fd, uint32_t x, uint32_t y, uint32_t w,
                              uint32_t h);
int v4l2_overlay_get_crop(int fd, uint32_t *x, uint32_t *y, uint32_t *w,
                              uint32_t *h);
int v4l2_overlay_set_rotation(int fd, int degree, int step);
int v4l2_overlay_set_colorkey(int fd, int enable, int colorkey);
int v4l2_overlay_set_global_alpha(int fd, int enable, int alpha);
int v4l2_overlay_set_local_alpha(int fd, int enable);

enum {
  V4L2_OVERLAY_PLANE_GRAPHICS,
  V4L2_OVERLAY_PLANE_VIDEO1,
  V4L2_OVERLAY_PLANE_VIDEO2,
};

typedef struct
{
  int fd;
  size_t length;
  uint32_t offset;
  void *ptr;
} mapping_data_t;

#define ALL_BUFFERS_FLUSHED -66

#endif  // ANDROID_ZOOM_REPO_HARDWARE_TI_OMAP3_LIBOVERLAY_V4L2_UTILS_H_