hvirtual/cinelerra/device1394output.h

   1 #ifndef DEVICE1394OUTPUT_H
   2 #define DEVICE1394OUTPUT_H
   3
   4
   5
   6 #ifdef HAVE_FIREWIRE
   7
   8 #include "condition.inc"
   9 #include "libdv.h"
  10 #include "mutex.inc"
  11 #include "thread.h"
  12 #include "vframe.inc"
  13 #include "video1394.h"
  14 #include <libdv/dv1394.h>
  15
  16 // Common 1394 output for audio and video
  17
  18 // This runs continuously to keep the VTR warm.
  19 // Takes encoded DV frames and PCM audio.  Does the 1394 encryption on the fly.
  20 class Device1394Output : public Thread
  21 {
  22 public:
  23         Device1394Output();
  24         ~Device1394Output();
  25
  26         int open(char *path,
  27                 int port,
  28                 int channel,
  29                 int length,
  30                 int channels,
  31                 int bits,
  32                 int samplerate,
  33                 int syt,
  34                 int use_dv1394);
  35         void start();
  36         void run();
  37
  38
  39 // Write frame with timed blocking.
  40
  41         void write_frame(VFrame *input);
  42
  43
  44 // Write audio with timed blocking.
  45
  46         void write_samples(char *data, int samples);
  47         long get_audio_position();
  48         void interrupt();
  49         void flush();
  50
  51
  52         void encrypt(unsigned char *output,
  53                 unsigned char *data,
  54                 int data_size);
  55
  56
  57         void increment_counter(int *counter);
  58         void decrement_counter(int *counter);
  59
  60
  61         char **buffer;
  62         int *buffer_size;
  63         int *buffer_valid;
  64
  65         int total_buffers;
  66         int current_inbuffer;
  67         int current_outbuffer;
  68
  69         char *audio_buffer;
  70         int audio_samples;
  71 // Encoder for audio frames
  72         dv_t *encoder;
  73
  74         Mutex *buffer_lock;
  75 // Block while waiting for the first buffer to be allocated
  76         Condition *start_lock;
  77         Mutex *position_lock;
  78
  79 // Provide timed blocking for writing routines.
  80
  81         Condition *video_lock;
  82         Condition *audio_lock;
  83         int done;
  84
  85
  86 // Output
  87         int output_fd;
  88         struct dv1394_status status;
  89         struct video1394_mmap output_mmap;
  90         struct video1394_queue_variable output_queue;
  91 //      raw1394handle_t avc_handle;
  92         VFrame *temp_frame, *temp_frame2;
  93 // Encoder for making DV frames
  94         dv_t *audio_encoder;
  95         dv_t *video_encoder;
  96         unsigned int cip_n, cip_d;
  97     unsigned int cip_counter;
  98         unsigned char f50_60;
  99         Device1394Output *output_thread;
 100         unsigned char *output_buffer;
 101         int output_number;
 102     unsigned int packet_sizes[321];
 103     unsigned char  continuity_counter;
 104     int unused_buffers;
 105         int avc_id;
 106         int channels;
 107         int samplerate;
 108         int bits;
 109         int syt;
 110         long audio_position;
 111         int interrupted;
 112         int have_video;
 113         int use_dv1394;
 114 };
 115
 116
 117
 118
 119 #endif
 120
 121
 122
 123
 124
 125 #endif