summaryrefslogtreecommitdiff
path: root/test/dgreftest/wavfileoutputengine.cc
diff options
context:
space:
mode:
authorBent Bisballe Nyeng <deva@aasimon.org>2016-05-14 20:27:56 +0200
committerBent Bisballe Nyeng <deva@aasimon.org>2016-05-14 20:27:56 +0200
commit36a62ae3403f7cfb02bd8dde43b6b2fa96fe867b (patch)
treec4ea5f2f97e94688bd0ac96dbb198a8f1eb67491 /test/dgreftest/wavfileoutputengine.cc
parent7bbc7520ecb2ff4fc020189c1fdfebd7d3bb8e42 (diff)
Make all components use the same Random instance and add seed method on DrumGizmo class. Added dgreftest application for doing reference midifile rendering tests.
Diffstat (limited to 'test/dgreftest/wavfileoutputengine.cc')
-rw-r--r--test/dgreftest/wavfileoutputengine.cc125
1 files changed, 125 insertions, 0 deletions
diff --git a/test/dgreftest/wavfileoutputengine.cc b/test/dgreftest/wavfileoutputengine.cc
new file mode 100644
index 0000000..6f971ad
--- /dev/null
+++ b/test/dgreftest/wavfileoutputengine.cc
@@ -0,0 +1,125 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * wavfileoutputengine.cc
+ *
+ * Sat May 14 13:26:51 CEST 2016
+ * Copyright 2016 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 Lesser General Public License as published by
+ * the Free Software Foundation; either version 3 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser 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 "wavfileoutputengine.h"
+
+#include <iostream>
+
+WavfileOutputEngine::WavfileOutputEngine()
+ : AudioOutputEngine{}
+ , info{}
+ , file{"output"}
+{
+ info.samplerate = 44100;
+ info.channels = 1;
+ info.format = SF_FORMAT_WAV | SF_FORMAT_FLOAT;
+}
+
+WavfileOutputEngine::~WavfileOutputEngine()
+{
+ sf_close(handle);
+}
+
+bool WavfileOutputEngine::init(const Channels& data)
+{
+ info.channels = data.size();
+
+ handle = sf_open(file.c_str(), SFM_WRITE, &info);
+ if(handle == nullptr)
+ {
+ std::cerr << "[WavfileOutputEngine] Failed to open "
+ << file << " for writing.\n";
+ return false;
+ }
+
+ return true;
+}
+
+void WavfileOutputEngine::setParm(const std::string& parm, const std::string& value)
+{
+ if(parm == "file")
+ {
+ // apply output filename prefix
+ file = value;
+ }
+ else if(parm == "srate")
+ {
+ // try to apply samplerate
+ try
+ {
+ info.samplerate = std::stoi(value);
+ }
+ catch(...)
+ {
+ std::cerr << "[WavfileOutputEngine] Invalid samplerate " << value
+ << "\n";
+ }
+ }
+ else
+ {
+ std::cerr << "[WavfileOutputEngine] Unsupported parameter '" << parm
+ << "'\n";
+ }
+}
+
+bool WavfileOutputEngine::start()
+{
+ return true;
+}
+
+void WavfileOutputEngine::stop()
+{
+}
+
+void WavfileOutputEngine::pre(size_t nsamples)
+{
+}
+
+void WavfileOutputEngine::run(int ch, sample_t* samples, size_t nsamples)
+{
+ if(ch >= info.channels)
+ {
+ std::cerr << "[WavfileOutputEngine] cannot access channel #" << ch
+ << " (" << info.channels << " channels available)\n";
+ return;
+ }
+
+ for(std::size_t i = 0; i < nsamples; ++i)
+ {
+ buffer[i * info.channels + ch] = samples[i];
+ }
+}
+
+void WavfileOutputEngine::post(size_t nsamples)
+{
+
+ sf_writef_float(handle, buffer, nsamples);
+}
+
+size_t WavfileOutputEngine::getSamplerate() const
+{
+ return info.samplerate;
+}