hvirtual/cinelerra/arender.h

   1 #ifndef ARENDER_H
   2 #define ARENDER_H
   3
   4 #include "atrack.inc"
   5 #include "commonrender.h"
   6 #include "maxchannels.h"
   7 #include "mutex.h"
   8
   9 class ARender : public CommonRender
  10 {
  11 public:
  12         ARender(RenderEngine *renderengine);
  13         ~ARender();
  14
  15         void arm_command();
  16         void init_output_buffers();
  17         VirtualConsole* new_vconsole_object();
  18         int get_total_tracks();
  19         Module* new_module(Track *track);
  20
  21 // set up and start thread
  22         int arm_playback(int64_t current_position,
  23                                 int64_t input_length,
  24                                 int64_t module_render_fragment,
  25                                 int64_t playback_buffer,
  26                                 int64_t output_length);
  27         int wait_for_startup();
  28         int64_t tounits(double position, int round);
  29         double fromunits(int64_t position);
  30
  31         void run();
  32 // Calculate number of samples
  33         int history_size();
  34 // Get subscript of history entry corresponding to sample
  35         int get_history_number(int64_t *table, int64_t position);
  36
  37 // output buffers for audio device
  38         double *audio_out[MAXCHANNELS];
  39 // information for meters
  40         int get_next_peak(int current_peak);
  41 // samples to use for one meter update
  42         int64_t meter_render_fragment;
  43 // Level history of output buffers
  44         double *level_history[MAXCHANNELS];
  45 // sample position of each level
  46         int64_t *level_samples;
  47 // total entries in level_history
  48         int total_peaks;
  49 // Next level to store value in
  50         int current_level[MAXCHANNELS];
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60 // get the data type for certain commonrender routines
  61         int get_datatype();
  62
  63 // handle playback autos and transitions
  64         int restart_playback();
  65         int send_reconfigure_buffer();
  66
  67 // process a buffer
  68 // renders into buffer_out argument when no audio device
  69 // handles playback autos
  70         int process_buffer(double **buffer_out, int64_t input_len, int64_t input_position, int last_buffer);
  71 // renders to a device when there's a device
  72         int process_buffer(int64_t input_len, int64_t input_position);
  73
  74         int wait_device_completion();
  75
  76 // reverse the data in a buffer
  77         int reverse_buffer(double *buffer, int64_t len);
  78 // advance the buffer count
  79         int swap_current_buffer();
  80         int64_t get_render_length(int64_t current_render_length);
  81
  82 //      int64_t playback_buffer;            // maximum length to send to audio device
  83 //      int64_t output_length;              // maximum length to send to audio device after speed
  84
  85
  86         int64_t source_length;  // Total number of frames to render for transitions
  87
  88 private:
  89 // initialize buffer_out
  90         int init_meters();
  91 // Samples since start of playback
  92         int64_t session_position;
  93         Mutex startup_lock;
  94 };
  95
  96
  97
  98 #endif