hvirtual/cinelerra/device1394output.h

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#ifndef DEVICE1394OUTPUT_H
#define DEVICE1394OUTPUT_H



#ifdef HAVE_FIREWIRE

#include "audiodevice.inc"
#include "condition.inc"
#include "libdv.h"
#include "dv1394.h"
#include "ieee1394-ioctl.h"
#include "mutex.inc"
#include "thread.h"
#include "vframe.inc"
#include "video1394.h"
#include "videodevice.inc"

// Common 1394 output for audio and video

// This runs continuously to keep the VTR warm.
// Takes encoded DV frames and PCM audio.  Does the 1394 encryption on the fly.
class Device1394Output : public Thread
{
public:
        Device1394Output(VideoDevice *vdevice);
        Device1394Output(AudioDevice *adevice);
        ~Device1394Output();

        void reset();
        int open(char *path,
                int port,
                int channel,
                int length,
                int channels, 
                int bits, 
                int samplerate,
                int syt);
        void start();
        void run();


// Write frame with timed blocking.

        void write_frame(VFrame *input);


// Write audio with timed blocking.

        void write_samples(char *data, int samples);
        long get_audio_position();
        void interrupt();
        void flush();

// This object is shared between audio and video.  Return what the driver is
// based on whether vdevice or adevice exists.
        int get_dv1394();

// Set IOCTL numbers based on kernel version
        void set_ioctls();

        void encrypt(unsigned char *output, 
                unsigned char *data, 
                int data_size);


        void increment_counter(int *counter);
        void decrement_counter(int *counter);


        char **buffer;
        int *buffer_size;
        int *buffer_valid;

        int total_buffers;
        int current_inbuffer;
        int current_outbuffer;

        char *audio_buffer;
        int audio_samples;
// Encoder for audio frames
        dv_t *encoder;

        Mutex *buffer_lock;
// Block while waiting for the first buffer to be allocated
        Condition *start_lock;
        Mutex *position_lock;

// Provide timed blocking for writing routines.

        Condition *video_lock;
        Condition *audio_lock;
        int done;
        struct dv1394_status status;


// Output
        int output_fd;
        struct video1394_mmap output_mmap;
        struct video1394_queue_variable output_queue;
//      raw1394handle_t avc_handle;
        VFrame *temp_frame, *temp_frame2;
// Encoder for making DV frames
        dv_t *audio_encoder;
        dv_t *video_encoder;
        unsigned int cip_n, cip_d;
    unsigned int cip_counter;
        unsigned char f50_60;
        unsigned char *output_buffer;
        int output_number;
    unsigned int packet_sizes[321];
    unsigned char  continuity_counter;
    int unused_buffers;
        int avc_id;
        int channels;
        int samplerate;
        int bits;
        int syt;
        long audio_position;
        int interrupted;
        int have_video;
        int is_pal;
        VideoDevice *vdevice;
        AudioDevice *adevice;

        // IOCTL # variables
   // video1394
   int video1394_listen_channel;
   int video1394_unlisten_channel;
   int video1394_listen_queue_buffer;
   int video1394_listen_wait_buffer;
   int video1394_talk_channel;
   int video1394_untalk_channel;
   int video1394_talk_queue_buffer;
   int video1394_talk_wait_buffer;
   int video1394_listen_poll_buffer;

// To keep track of the delay between putting the audio in the buffer
// and when it is actually presented on the DV device
        long *position_presented;

};




#endif





#endif

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