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Diffstat (limited to 'src/pcm/GlueResampler.hxx')
-rw-r--r-- | src/pcm/GlueResampler.hxx | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/pcm/GlueResampler.hxx b/src/pcm/GlueResampler.hxx new file mode 100644 index 000000000..aff07823e --- /dev/null +++ b/src/pcm/GlueResampler.hxx @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2003-2014 The Music Player Daemon Project + * http://www.musicpd.org + * + * This program 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. + * + * This program 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 this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef MPD_GLUE_RESAMPLER_HXX +#define MPD_GLUE_RESAMPLER_HXX + +#include "check.h" +#include "AudioFormat.hxx" +#include "FormatConverter.hxx" + +class Error; +class PcmResampler; +template<typename T> struct ConstBuffer; + +/** + * A glue class that integrates a #PcmResampler and automatically + * converts source data to the sample format required by the + * #PcmResampler instance. + */ +class GluePcmResampler { + PcmResampler *const resampler; + + SampleFormat src_sample_format, requested_sample_format; + SampleFormat output_sample_format; + + /** + * This object converts input data to the sample format + * requested by the #PcmResampler. + */ + PcmFormatConverter format_converter; + +public: + GluePcmResampler(); + ~GluePcmResampler(); + + bool Open(AudioFormat src_format, unsigned new_sample_rate, + Error &error); + void Close(); + + SampleFormat GetOutputSampleFormat() const { + return output_sample_format; + } + + ConstBuffer<void> Resample(ConstBuffer<void> src, Error &error); +}; + +#endif |