cinelerra/device1394input.h

   1 #ifndef DEVICE1394INPUT_H
   2 #define DEVICE1394INPUT_H
   3
   4
   5
   6 #ifdef HAVE_FIREWIRE
   7
   8 #include "condition.inc"
   9 #include "libdv.h"
  10 #include "dv1394.h"
  11 #include "mutex.inc"
  12 #include <libraw1394/raw1394.h>
  13 #include "thread.h"
  14 #include "vframe.inc"
  15
  16 // Common 1394 input for audio and video
  17
  18 // Extracts video and audio from the single DV stream
  19 class Device1394Input : public Thread
  20 {
  21 public:
  22         Device1394Input();
  23         ~Device1394Input();
  24
  25         int open(const char *path,
  26                 int port,
  27                 int channel,
  28                 int length,
  29                 int channels,
  30                 int samplerate,
  31                 int bits,
  32                 int w,
  33                 int h);
  34         void run();
  35         void increment_counter(int *counter);
  36         void decrement_counter(int *counter);
  37
  38 // Read a video frame with timed blocking
  39
  40         int read_video(VFrame *data);
  41
  42
  43 // Read audio with timed blocking
  44
  45         int read_audio(char *data, int samples);
  46
  47 // Storage of all frames
  48         char **buffer;
  49         int *buffer_valid;
  50         int buffer_size;
  51         int total_buffers;
  52         int current_inbuffer;
  53
  54 // For extracting audio
  55         dv_t *decoder;
  56
  57 // Storage of audio data
  58         char *audio_buffer;
  59         int audio_samples;
  60
  61 // number of next video buffer to read
  62         int current_outbuffer;
  63         unsigned char *input_buffer;
  64
  65         Mutex *buffer_lock;
  66         Condition *video_lock;
  67         Condition *audio_lock;
  68         int done;
  69
  70         int fd;
  71         int channel;
  72         int length;
  73         int channels;
  74         int samplerate;
  75         int bits;
  76         int w;
  77         int h;
  78         int is_pal;
  79 };
  80
  81
  82
  83
  84
  85 #endif
  86
  87
  88
  89 #endif