cinelerra/iec61883output.h

   1 #ifndef IEC61883OUTPUT_H
   2 #define IEC61883OUTPUT_H
   3
   4
   5
   6 #ifdef HAVE_FIREWIRE
   7
   8 #include "audiodevice.inc"
   9 #include "condition.inc"
  10 #include <libiec61883/iec61883.h>
  11 #include "libdv.h"
  12 #include "mutex.inc"
  13 #include "thread.h"
  14 #include "vframe.inc"
  15 #include "videodevice.inc"
  16
  17 // Common 1394 output for audio and video
  18
  19 // This runs continuously to keep the VTR warm.
  20 // Takes encoded DV frames and PCM audio.
  21 class IEC61883Output : public Thread
  22 {
  23 public:
  24         IEC61883Output(VideoDevice *vdevice);
  25         IEC61883Output(AudioDevice *adevice);
  26         ~IEC61883Output();
  27
  28         void reset();
  29         int open(int port,
  30                 int channel,
  31                 int length,
  32                 int channels,
  33                 int bits,
  34                 int samplerate,
  35                 int syt);
  36         void start();
  37         void run();
  38
  39
  40 // Write frame with timed blocking.
  41
  42         void write_frame(VFrame *input);
  43
  44
  45 // Write audio with timed blocking.
  46
  47         void write_samples(char *data, int samples);
  48         long get_audio_position();
  49         void interrupt();
  50         void flush();
  51
  52
  53
  54         void increment_counter(int *counter);
  55         void decrement_counter(int *counter);
  56         int read_frame(unsigned char *data, int n, unsigned int dropped);
  57
  58
  59         char **buffer;
  60         int *buffer_size;
  61         int *buffer_valid;
  62
  63         int total_buffers;
  64         int current_inbuffer;
  65         int current_outbuffer;
  66
  67         char *audio_buffer;
  68         int audio_samples;
  69 // Encoder for audio frames
  70         dv_t *encoder;
  71
  72         Mutex *buffer_lock;
  73 // Block while waiting for the first buffer to be allocated
  74         Condition *start_lock;
  75         Mutex *position_lock;
  76
  77 // Provide timed blocking for writing routines.
  78
  79         Condition *video_lock;
  80         Condition *audio_lock;
  81         int done;
  82
  83
  84 // Output
  85         int fd;
  86         raw1394handle_t handle;
  87         iec61883_dv_t frame;
  88 // Must break up each frame into 480 byte chunks again.
  89         char *out_buffer;
  90         int out_size;
  91         int out_position;
  92
  93
  94
  95
  96
  97         VFrame *temp_frame, *temp_frame2;
  98 // Encoder for making DV frames
  99         dv_t *audio_encoder;
 100         dv_t *video_encoder;
 101         unsigned char *output_buffer;
 102         int output_number;
 103     unsigned int packet_sizes[321];
 104     unsigned char  continuity_counter;
 105     int unused_buffers;
 106         int avc_id;
 107         int channels;
 108         int samplerate;
 109         int bits;
 110         int syt;
 111         long audio_position;
 112         int interrupted;
 113         int have_video;
 114         int is_pal;
 115         VideoDevice *vdevice;
 116         AudioDevice *adevice;
 117
 118
 119
 120 };
 121
 122
 123
 124
 125 #endif
 126
 127
 128
 129
 130
 131 #endif