research.m1stereo.tv/gitweb/ - melted/blob - src/modules/jackrack/process.h

   1 /*
   2  * JACK Rack
   3  *
   4  * Original:
   5  * Copyright (C) Robert Ham 2002, 2003 (node@users.sourceforge.net)
   6  *
   7  * Modification for MLT:
   8  * Copyright (C) 2004 Ushodaya Enterprises Limited
   9  * Author: Dan Dennedy <dan@dennedy.org>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24  */
  25
  26 #ifndef __JLH_PROCESS_H__
  27 #define __JLH_PROCESS_H__
  28
  29 #include <glib.h>
  30 #include <jack/jack.h>
  31 #include <ladspa.h>
  32
  33 #include "lock_free_fifo.h"
  34
  35 typedef struct _process_info process_info_t;
  36
  37 /** this is what gets passed to the process() callback and contains all
  38     the data the process callback will need */
  39 struct _process_info {
  40
  41   /** the plugin instance chain */
  42   struct _plugin * chain;
  43   struct _plugin * chain_end;
  44
  45   jack_client_t * jack_client;
  46   unsigned long port_count;
  47   jack_port_t ** jack_input_ports;
  48   jack_port_t ** jack_output_ports;
  49
  50   unsigned long channels;
  51   LADSPA_Data ** jack_input_buffers;
  52   LADSPA_Data ** jack_output_buffers;
  53   LADSPA_Data *  silent_buffer;
  54
  55   char * jack_client_name;
  56   int quit;
  57 };
  58
  59 extern jack_nframes_t sample_rate;
  60 extern jack_nframes_t buffer_size;
  61
  62 process_info_t * process_info_new (const char * client_name,
  63         unsigned long rack_channels, gboolean connect_inputs, gboolean connect_outputs);
  64 void process_info_destroy (process_info_t * procinfo);
  65
  66 void process_info_set_channels (process_info_t * procinfo,
  67         unsigned long channels, gboolean connect_inputs, gboolean connect_outputs);
  68
  69 int process_ladspa (process_info_t * procinfo, jack_nframes_t frames,
  70                     LADSPA_Data ** inputs, LADSPA_Data ** outputs);
  71
  72 int process_jack (jack_nframes_t frames, void * data);
  73
  74 void process_quit (process_info_t * procinfo);
  75
  76 #endif /* __JLH_PROCESS_H__ */