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authordeva <deva>2011-07-15 13:02:33 +0000
committerdeva <deva>2011-07-15 13:02:33 +0000
commitcd0e36773992e26985bdec1f7a5341f83fa3e521 (patch)
tree4710fb3f2465f4b464f5f6176261a67cfde2e46e /drumgizmo/output/wavfile/wavfile.cc
parente190d38057892b69246391841b234a368bc2b4ad (diff)
New input/output plugin architecture. New LV2 plugin.
Diffstat (limited to 'drumgizmo/output/wavfile/wavfile.cc')
-rw-r--r--drumgizmo/output/wavfile/wavfile.cc199
1 files changed, 199 insertions, 0 deletions
diff --git a/drumgizmo/output/wavfile/wavfile.cc b/drumgizmo/output/wavfile/wavfile.cc
new file mode 100644
index 0000000..03d8a7c
--- /dev/null
+++ b/drumgizmo/output/wavfile/wavfile.cc
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * wavfile.cc
+ *
+ * Sat Apr 30 21:12:02 CEST 2011
+ * Copyright 2011 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include <stdlib.h>
+
+#include <audiotypes.h>
+#include <string>
+
+#include <sndfile.h>
+
+#define T(x, msg) if(x < 0) { printf("%s failed: %s\n", msg, snd_strerror(x)); fflush(stdout); return false; }
+
+class WavFile {
+public:
+ WavFile();
+ ~WavFile();
+ bool init(int channels, char *cnames[]);
+ void setParm(std::string parm, std::string value);
+ bool start();
+ void stop();
+ void pre(size_t size);
+ void run(int channel, sample_t* data, size_t size);
+ void post(size_t size);
+
+private:
+ SF_INFO sf_info;
+ SNDFILE **fh;
+ size_t channels;
+
+ // Parameters
+ std::string filename;
+};
+
+WavFile::WavFile()
+{
+ fh = NULL;
+ filename = "output";
+}
+
+WavFile::~WavFile()
+{
+ if(fh == NULL) return;
+
+ for(size_t i = 0; i < channels; i++) {
+ if(fh[i]) sf_close(fh[i]);
+ }
+
+ if(fh) free(fh);
+}
+
+bool WavFile::init(int channels, char *cnames[])
+{
+ this->channels = channels;
+
+ sf_info.channels = 1;//channels;
+ sf_info.format = SF_FORMAT_WAV | SF_FORMAT_FLOAT;
+ sf_info.samplerate = 44100;
+
+ fh = (SNDFILE **)malloc(sizeof(SNDFILE *)*channels);
+
+ for(size_t i = 0; i < this->channels; i++) fh[i] = NULL;
+
+ for(size_t i = 0; i < this->channels; i++) {
+ char fname[512];
+
+ sprintf(fname, "%s%s-%d.wav", filename.c_str(), cnames[i], i);
+ // printf("[%s]\n", fname);
+
+ fh[i] = sf_open(fname, SFM_WRITE, &sf_info);
+ if(!fh[i]) {
+ printf("Write error...\n");
+ return false;
+ }
+ }
+
+ return true;
+}
+
+void WavFile::setParm(std::string parm, std::string value)
+{
+ if(parm == "file") filename = value;
+}
+
+bool WavFile::start()
+{
+ return true;
+}
+
+void WavFile::stop()
+{
+}
+
+void WavFile::pre(size_t size)
+{
+}
+
+void WavFile::run(int channel, sample_t* cdata, size_t csize)
+{
+ if(channel < (int)channels) sf_writef_float(fh[channel], cdata, csize);
+}
+
+void WavFile::post(size_t size)
+{
+}
+
+extern "C" {
+ void *create()
+ {
+ return new WavFile();
+ }
+
+ void destroy(void *h)
+ {
+ WavFile *sndfile = (WavFile*)h;
+ delete sndfile;
+ }
+
+ bool init(void *h, int cs, char *cnames[])
+ {
+ WavFile *sndfile = (WavFile*)h;
+ return sndfile->init(cs, cnames);
+ }
+
+ void setparm(void *h, const char *parm, const char *value)
+ {
+ WavFile *sndfile = (WavFile*)h;
+ sndfile->setParm(parm, value);
+ }
+
+ bool start(void *h)
+ {
+ WavFile *sndfile = (WavFile*)h;
+ return sndfile->start();
+ }
+
+ void stop(void *h)
+ {
+ WavFile *sndfile = (WavFile*)h;
+ sndfile->stop();
+ }
+
+ void pre(void *h, size_t s)
+ {
+ WavFile *sndfile = (WavFile*)h;
+ sndfile->pre(s);
+ }
+
+ void run(void *h, int ch, sample_t *data, size_t size)
+ {
+ WavFile *sndfile = (WavFile*)h;
+ sndfile->run(ch, data, size);
+ }
+
+ void post(void *h, size_t s)
+ {
+ WavFile *sndfile = (WavFile*)h;
+ sndfile->post(s);
+ }
+}
+
+#ifdef TEST_AUDIOOUTPUTENGINESNDFILE
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_AUDIOOUTPUTENGINESNDFILE*/