cinelerra-5.1/cinelerra/virtualanode.h

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #ifndef VIRTUALANODE_H
  23 #define VIRTUALANODE_H
  24
  25
  26 #include "arender.inc"
  27 #include "filethread.inc"  // RING_BUFFERS
  28 #include "maxchannels.h"
  29 #include "plugin.inc"
  30 #include "samples.inc"
  31 #include "units.h"
  32 #include "virtualnode.h"
  33
  34 class VirtualANode : public VirtualNode
  35 {
  36 public:
  37         VirtualANode(RenderEngine *renderengine,
  38                 VirtualConsole *vconsole,
  39                 Module *real_module,
  40                 Plugin *real_plugin,
  41                 Track *track,
  42                 VirtualNode *parent_module);
  43
  44         ~VirtualANode();
  45
  46         VirtualNode* create_module(Plugin *real_plugin,
  47                                                         Module *real_module,
  48                                                         Track *track);
  49         VirtualNode* create_plugin(Plugin *real_plugin);
  50
  51 // Called by VirtualAConsole::process_buffer to process exit_nodes.
  52 // read_data recurses down the tree.
  53         int render(Samples *output_temp,
  54                 int64_t size,
  55                 int64_t start_position,
  56                 int64_t sample_rate);
  57
  58 // Read data from whatever comes before this node.
  59 // Calls render in either the parent node or the module for the track.
  60         int read_data(Samples *output_temp,
  61                 int64_t size,
  62                 int64_t start_position,
  63                 int64_t sample_rate);
  64
  65 private:
  66 // need *arender for peak updating
  67         int render_as_module(Samples **audio_out,
  68                 Samples *output_temp,
  69                 int64_t size,
  70                 int64_t start_position,
  71                 int64_t sample_rate);
  72         void render_as_plugin(Samples *output_temp,
  73                 int64_t size,
  74                 int64_t start_position,
  75                 int64_t sample_rate);
  76
  77         int render_fade(double *buffer,
  78                                         int64_t len,
  79                                         int64_t input_position,
  80                                         int64_t sample_rate,
  81                                         Autos *autos,
  82                                         int direction,
  83                                         int use_nudge);
  84         int render_pan(double *input,        // start of input fragment
  85                                 double *output,        // start of output fragment
  86                                 int64_t fragment_len,      // fragment length in input scale
  87                                 int64_t input_position, // starting sample of input buffer in project
  88                                 int64_t sample_rate,
  89                                 Autos *autos,
  90                                 int channel,
  91                                 int direction,
  92                                 int use_nudge);
  93         void get_pan_automation(double &slope,
  94                 double &intercept,
  95                 int64_t input_position,
  96                 int64_t &slope_len,
  97                 Autos *autos,
  98                 int channel,
  99                 int direction);
 100
 101 /*
 102  *      double* get_module_input(int double_buffer, int64_t fragment_position);
 103  *      double* get_module_output(int double_buffer, int64_t fragment_position);
 104  */
 105
 106         DB db;
 107
 108         Auto *pan_before[MAXCHANNELS], *pan_after[MAXCHANNELS];
 109 };
 110
 111
 112 #endif