cinelerra/iec61883input.h

   1 #ifndef IEC61883INPUT_H
   2 #define IEC61883INPUT_H
   3
   4
   5
   6 #ifdef HAVE_FIREWIRE
   7
   8 #include "condition.inc"
   9 #include <libiec61883/iec61883.h>
  10 #include "libdv.h"
  11 #include "mutex.inc"
  12 #include "thread.h"
  13 #include "vframe.inc"
  14
  15 // Common 1394 input for audio and video
  16
  17 // Extracts video and audio from the single DV stream
  18 class IEC61883Input : public Thread
  19 {
  20 public:
  21         IEC61883Input();
  22         ~IEC61883Input();
  23
  24         int open(int port,
  25                 int channel,
  26                 int length,
  27                 int channels,
  28                 int samplerate,
  29                 int bits,
  30                 int w,
  31                 int h);
  32         void run();
  33         void increment_counter(int *counter);
  34         void decrement_counter(int *counter);
  35
  36 // Read a video frame with timed blocking
  37
  38         int read_video(VFrame *data);
  39
  40
  41 // Read audio with timed blocking
  42
  43         int read_audio(char *data, int samples);
  44
  45
  46         int write_frame(unsigned char *data, int len, int complete);
  47
  48         raw1394handle_t handle;
  49         iec61883_dv_fb_t frame;
  50         int fd;
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60 // Storage of all frames
  61         char **buffer;
  62         int *buffer_valid;
  63         int buffer_size;
  64         int total_buffers;
  65         int current_inbuffer;
  66
  67 // For extracting audio
  68         dv_t *decoder;
  69
  70 // Storage of audio data
  71         char *audio_buffer;
  72         int audio_samples;
  73
  74 // number of next video buffer to read
  75         int current_outbuffer;
  76         unsigned char *input_buffer;
  77
  78         Mutex *buffer_lock;
  79         Condition *video_lock;
  80         Condition *audio_lock;
  81         int done;
  82
  83         int port;
  84         int channel;
  85         int length;
  86         int channels;
  87         int samplerate;
  88         int bits;
  89         int w;
  90         int h;
  91         int is_pal;
  92 };
  93
  94
  95
  96
  97
  98 #endif
  99
 100
 101
 102 #endif