recsrc.h

   1 /*
   2 Calf Box, an open source musical instrument.
   3 Copyright (C) 2010-2011 Krzysztof Foltman
   4
   5 This program is free software: you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation, either version 3 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #ifndef CBOX_RECSRC_H
  20 #define CBOX_RECSRC_H
  21
  22 #include "cmd.h"
  23 #include "dom.h"
  24
  25 struct cbox_recording_source;
  26 struct cbox_rt;
  27 struct cbox_engine;
  28
  29 CBOX_EXTERN_CLASS(cbox_recorder)
  30
  31 struct cbox_recorder
  32 {
  33     CBOX_OBJECT_HEADER()
  34     void *user_data;
  35     struct cbox_command_target cmd_target;
  36
  37     gboolean (*attach)(struct cbox_recorder *handler, struct cbox_recording_source *src, GError **error);
  38     void (*record_block)(struct cbox_recorder *handler, const float **buffers, uint32_t numsamples);
  39     gboolean (*detach)(struct cbox_recorder *handler, GError **error);
  40     void (*destroy)(struct cbox_recorder *handler);
  41 };
  42
  43 struct cbox_recording_source
  44 {
  45     struct cbox_command_target cmd_target;
  46     struct cbox_scene *scene;
  47
  48     struct cbox_recorder **handlers;
  49     int handler_count;
  50     uint32_t max_numsamples;
  51     int channels;
  52 };
  53
  54 #define IS_RECORDING_SOURCE_CONNECTED(src) ((src).handler_count != 0)
  55
  56 extern void cbox_recording_source_init(struct cbox_recording_source *src, struct cbox_scene *scene, uint32_t max_numsamples, int channels);
  57 extern gboolean cbox_recording_source_attach(struct cbox_recording_source *src, struct cbox_recorder *rec, GError **error);
  58 extern int cbox_recording_source_detach(struct cbox_recording_source *src, struct cbox_recorder *rec, GError **error);
  59 extern void cbox_recording_source_push(struct cbox_recording_source *src, const float **buffers, uint32_t numsamples);
  60 extern void cbox_recording_source_uninit(struct cbox_recording_source *src);
  61
  62 extern struct cbox_recorder *cbox_recorder_new_stream(struct cbox_engine *engine, struct cbox_rt *rt, const char *filename);
  63
  64 #endif