cinelerra/vdevicev4l.h

   1 #ifndef VDEVICEV4L_H
   2 #define VDEVICEV4L_H
   3
   4 #include "vdevicebase.h"
   5 #include <linux/videodev.h>
   6 #include "videodevice.inc"
   7
   8 class VDeviceV4L : public VDeviceBase
   9 {
  10 public:
  11         VDeviceV4L(VideoDevice *device);
  12         ~VDeviceV4L();
  13
  14         int initialize();
  15         int open_input();
  16         int close_all();
  17         int read_buffer(VFrame *frame);
  18         int get_best_colormodel(Asset *asset);
  19         int set_channel(Channel *channel);
  20         int set_picture(PictureConfig *picture);
  21
  22 private:
  23         int set_cloexec_flag(int desc, int value);
  24         int set_mute(int muted);
  25         int v4l1_get_inputs();
  26         int v4l1_set_mute(int muted);
  27         unsigned long translate_colormodel(int colormodel);
  28         int v4l1_set_channel(Channel *channel);
  29         int v4l1_get_norm(int norm);
  30         int v4l1_set_picture(PictureConfig *picture);
  31         void v4l1_start_capture();
  32         int capture_frame(int capture_frame_number);
  33         int wait_v4l_frame();
  34         int read_v4l_frame(VFrame *frame);
  35         int frame_to_vframe(VFrame *frame, unsigned char *input);
  36         int next_frame(int previous_frame);
  37         int close_v4l();
  38         int unmap_v4l_shmem();
  39         int v4l_init();
  40
  41         int input_fd, output_fd;
  42 // FourCC Colormodel for device
  43         unsigned long device_colormodel;
  44 // BC colormodel for device
  45         int colormodel;
  46
  47 // Video4Linux
  48         struct video_capability cap1;
  49         struct video_window window_params;
  50         struct video_picture picture_params;
  51         struct video_mbuf capture_params;  // Capture for Video4Linux
  52
  53 // Common
  54         char *capture_buffer;      // sequentual capture buffers for v4l1 or read buffer for v4l2
  55         int capture_frame_number;    // number of frame to capture into
  56         int read_frame_number;       // number of the captured frame to read
  57         int shared_memory;   // Capturing directly to memory
  58         int initialization_complete;
  59         int got_first_frame;
  60 };
  61
  62 #endif