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 output 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 Device1394Input::open(int port,
  26                 int channel,
  27                 int length,
  28                 int channels,
  29                 int samplerate,
  30                 int bits,
  31                 int w,
  32                 int h);
  33         void run();
  34         void increment_counter(int *counter);
  35         void decrement_counter(int *counter);
  36
  37         static int dv_iso_handler(raw1394handle_t handle,
  38                 int channel,
  39                 size_t length,
  40                 quadlet_t *data);
  41         static bus_reset_handler_t dv_reset_handler(raw1394handle_t handle,
  42                 unsigned int generation);
  43
  44 // Read a video frame with timed blocking
  45
  46         int read_video(VFrame *data);
  47
  48
  49 // Read audio with timed blocking
  50
  51         int read_audio(char *data, int samples);
  52
  53 // Storage of all frames
  54         char **buffer;
  55         int *buffer_valid;
  56         int buffer_size;
  57         int total_buffers;
  58         int current_inbuffer;
  59
  60 // For extracting audio
  61         dv_t *decoder;
  62
  63 // Storage of audio data
  64         char *audio_buffer;
  65         int audio_samples;
  66
  67 // number of next video buffer to read
  68         int current_outbuffer;
  69         unsigned char *input_buffer;
  70
  71         Mutex *buffer_lock;
  72         Condition *video_lock;
  73         Condition *audio_lock;
  74         int done;
  75
  76         int fd;
  77         int channel;
  78         int length;
  79         int channels;
  80         int samplerate;
  81         int bits;
  82         int w;
  83         int h;
  84         int is_pal;
  85 };
  86
  87
  88
  89
  90
  91 #endif
  92
  93
  94
  95 #endif