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//
// SampleSource.c - MrsWatson
// Created by Nik Reiman on 1/2/12.
// Copyright (c) 2012 Teragon Audio. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "base/File.h"
#include "io/SampleSource.h"
#include "logging/EventLogger.h"
void sampleSourcePrintSupportedTypes(void)
{
logInfo("Supported audio file types:");
// We can theoretically support more formats, pretty much anything audiofile supports
// would work here. However, most of those file types are rather uncommon, and require
// special setup when writing, so we only choose the most common ones.
#if USE_AUDIOFILE
logInfo("- AIFF (via libaudiofile)");
#endif
#if USE_FLAC
logInfo("- FLAC (via libaudiofile)");
#endif
// Always supported
logInfo("- PCM");
#if USE_AUDIOFILE
logInfo("- WAV (via libaudiofile)");
#else
logInfo("- WAV (internal)");
#endif
}
static SampleSourceType _sampleSourceGuess(const CharString sampleSourceName)
{
File sourceFile = NULL;
CharString sourceFileExtension = NULL;
SampleSourceType result = SAMPLE_SOURCE_TYPE_PCM;
if (sampleSourceName == NULL || charStringIsEmpty(sampleSourceName)) {
result = SAMPLE_SOURCE_TYPE_SILENCE;
} else {
// Look for stdin/stdout
if (strlen(sampleSourceName->data) == 1 && sampleSourceName->data[0] == '-') {
result = SAMPLE_SOURCE_TYPE_PCM;
} else {
sourceFile = newFileWithPath(sampleSourceName);
sourceFileExtension = fileGetExtension(sourceFile);
freeFile(sourceFile);
// If there is no file extension, then automatically assume raw PCM data. Deal with it!
if (charStringIsEmpty(sourceFileExtension)) {
result = SAMPLE_SOURCE_TYPE_PCM;
}
// Possible file extensions for raw PCM data
else if (charStringIsEqualToCString(sourceFileExtension, "pcm", true) ||
charStringIsEqualToCString(sourceFileExtension, "raw", true) ||
charStringIsEqualToCString(sourceFileExtension, "dat", true)) {
result = SAMPLE_SOURCE_TYPE_PCM;
}
#if USE_AUDIOFILE
else if (charStringIsEqualToCString(sourceFileExtension, "aif", true) ||
charStringIsEqualToCString(sourceFileExtension, "aiff", true)) {
result = SAMPLE_SOURCE_TYPE_AIFF;
}
#endif
#if USE_FLAC
else if (charStringIsEqualToCString(sourceFileExtension, "flac", true)) {
result = SAMPLE_SOURCE_TYPE_FLAC;
}
#endif
else if (charStringIsEqualToCString(sourceFileExtension, "wav", true) ||
charStringIsEqualToCString(sourceFileExtension, "wave", true)) {
result = SAMPLE_SOURCE_TYPE_WAVE;
} else {
logCritical("Sample source '%s' does not match any supported type", sampleSourceName->data);
result = SAMPLE_SOURCE_TYPE_INVALID;
}
}
}
freeCharString(sourceFileExtension);
return result;
}
extern SampleSource _newSampleSourceAudiofile(const CharString sampleSourceName,
const SampleSourceType sampleSourceType);
extern SampleSource _newSampleSourcePcm(const CharString sampleSourceName);
extern SampleSource _newSampleSourceSilence();
extern SampleSource _newSampleSourceWave(const CharString sampleSourceName);
SampleSource sampleSourceFactory(const CharString sampleSourceName)
{
SampleSourceType sampleSourceType = _sampleSourceGuess(sampleSourceName);
switch (sampleSourceType) {
case SAMPLE_SOURCE_TYPE_SILENCE:
return _newSampleSourceSilence();
case SAMPLE_SOURCE_TYPE_PCM:
return _newSampleSourcePcm(sampleSourceName);
#if USE_AUDIOFILE
case SAMPLE_SOURCE_TYPE_AIFF:
return _newSampleSourceAudiofile(sampleSourceName, sampleSourceType);
#endif
#if USE_FLAC
case SAMPLE_SOURCE_TYPE_FLAC:
return _newSampleSourceAudiofile(sampleSourceName, sampleSourceType);
#endif
#if USE_AUDIOFILE
case SAMPLE_SOURCE_TYPE_WAVE:
return _newSampleSourceAudiofile(sampleSourceName, sampleSourceType);
#else
case SAMPLE_SOURCE_TYPE_WAVE:
return _newSampleSourceWave(sampleSourceName);
#endif
default:
return NULL;
}
}
void freeSampleSource(SampleSource self)
{
self->freeSampleSourceData(self->extraData);
freeCharString(self->sourceName);
free(self);
}
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