cinelerra/pluginaclient.h

   1 #ifndef PLUGINACLIENT_H
   2 #define PLUGINACLIENT_H
   3
   4
   5
   6 #include "maxbuffers.h"
   7 #include "pluginclient.h"
   8
   9 class PluginAClient : public PluginClient
  10 {
  11 public:
  12         PluginAClient(PluginServer *server);
  13         virtual ~PluginAClient();
  14
  15         int get_render_ptrs();
  16         int init_realtime_parameters();
  17
  18         int is_audio();
  19 // These should return 1 if error or 0 if success.
  20 // Multichannel buffer process for backwards compatibility
  21         virtual int process_realtime(int64_t size,
  22                 double **input_ptr,
  23                 double **output_ptr);
  24 // Single channel buffer process for backwards compatibility and transitions
  25         virtual int process_realtime(int64_t size,
  26                 double *input_ptr,
  27                 double *output_ptr);
  28
  29 // Process buffer using pull method.  By default this loads the input into the
  30 // buffer and calls process_realtime with input and output pointing to buffer.
  31 // start_position - requested position relative to sample_rate. Relative
  32 //     to start of EDL.  End of buffer if reverse.
  33 // sample_rate - scale of start_position.
  34         virtual int process_buffer(int64_t size,
  35                 double **buffer,
  36                 int64_t start_position,
  37                 int sample_rate);
  38         virtual int process_buffer(int64_t size,
  39                 double *buffer,
  40                 int64_t start_position,
  41                 int sample_rate);
  42
  43
  44         virtual int process_loop(double *buffer, int64_t &write_length) { return 1; };
  45         virtual int process_loop(double **buffers, int64_t &write_length) { return 1; };
  46         int plugin_process_loop(double **buffers, int64_t &write_length);
  47
  48         int plugin_start_loop(int64_t start,
  49                 int64_t end,
  50                 int64_t buffer_size,
  51                 int total_buffers);
  52
  53         int plugin_get_parameters();
  54
  55 // Called by non-realtime client to read audio for processing.
  56 // buffer - output wave
  57 // channel - channel of the plugin input for multichannel plugin
  58 // start_position - start of samples in forward.  End of samples in reverse.
  59 //     Relative to start of EDL.  Scaled to sample_rate.
  60 // len - number of samples to read
  61         int read_samples(double *buffer,
  62                 int channel,
  63                 int64_t start_position,
  64                 int64_t len);
  65         int read_samples(double *buffer,
  66                 int64_t start_position,
  67                 int64_t len);
  68
  69 // Called by realtime plugin to read audio from previous entity
  70 // sample_rate - scale of start_position.  Provided so the client can get data
  71 //     at a higher fidelity than provided by the EDL.
  72         int read_samples(double *buffer,
  73                 int channel,
  74                 int sample_rate,
  75                 int64_t start_position,
  76                 int64_t len);
  77
  78 // Get the sample rate of the EDL
  79         int get_project_samplerate();
  80 // Get the requested sample rate
  81         int get_samplerate();
  82
  83         int64_t local_to_edl(int64_t position);
  84         int64_t edl_to_local(int64_t position);
  85
  86         void send_render_gui(void *data, int size);
  87         void plugin_render_gui(void *data, int size);
  88         virtual void render_gui(void *data, int size) {};
  89
  90 // point to the start of the buffers
  91         ArrayList<float**> input_ptr_master;
  92         ArrayList<float**> output_ptr_master;
  93 // point to the regions for a single render
  94         float **input_ptr_render;
  95         float **output_ptr_render;
  96 // sample rate of EDL.  Used for normalizing keyframes
  97         int project_sample_rate;
  98 // Local parameters set by non realtime plugin about the file to be generated.
  99 // Retrieved by server to set output file format.
 100 // In realtime plugins, these are set before every process_buffer as the
 101 // requested rates.
 102         int sample_rate;
 103 };
 104
 105
 106
 107 #endif