diff options
Diffstat (limited to 'src/pcm/FormatConverter.cxx')
-rw-r--r-- | src/pcm/FormatConverter.cxx | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/pcm/FormatConverter.cxx b/src/pcm/FormatConverter.cxx new file mode 100644 index 000000000..8ff8b8940 --- /dev/null +++ b/src/pcm/FormatConverter.cxx @@ -0,0 +1,89 @@ +/* + * Copyright (C) 2003-2013 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. + */ + +#include "config.h" +#include "FormatConverter.hxx" +#include "PcmFormat.hxx" +#include "Domain.hxx" +#include "util/ConstBuffer.hxx" +#include "util/Error.hxx" + +#include <assert.h> + +bool +PcmFormatConverter::Open(SampleFormat _src_format, SampleFormat _dest_format, + gcc_unused Error &error) +{ + assert(_src_format != SampleFormat::UNDEFINED); + assert(_dest_format != SampleFormat::UNDEFINED); + + src_format = _src_format; + dest_format = _dest_format; + return true; +} + +void +PcmFormatConverter::Close() +{ +#ifndef NDEBUG + src_format = SampleFormat::UNDEFINED; + dest_format = SampleFormat::UNDEFINED; +#endif +} + +ConstBuffer<void> +PcmFormatConverter::Convert(ConstBuffer<void> src, Error &error) +{ + switch (dest_format) { + case SampleFormat::UNDEFINED: + assert(false); + gcc_unreachable(); + + case SampleFormat::S8: + case SampleFormat::DSD: + error.Format(pcm_domain, + "PCM conversion from %s to %s is not implemented", + sample_format_to_string(src_format), + sample_format_to_string(dest_format)); + return nullptr; + + case SampleFormat::S16: + return pcm_convert_to_16(buffer, dither, + src_format, + src).ToVoid(); + + case SampleFormat::S24_P32: + return pcm_convert_to_24(buffer, + src_format, + src).ToVoid(); + + case SampleFormat::S32: + return pcm_convert_to_32(buffer, + src_format, + src).ToVoid(); + + case SampleFormat::FLOAT: + return pcm_convert_to_float(buffer, + src_format, + src).ToVoid(); + } + + assert(false); + gcc_unreachable(); +} |