From d605329f833ac323a41ca34ee4428d6bef69b1b1 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Wed, 11 Nov 2009 07:59:22 +0100 Subject: decoder/flac: moved code to flac_pcm.c --- src/decoder/_flac_common.c | 82 +----------------------------------- src/decoder/flac_pcm.c | 101 +++++++++++++++++++++++++++++++++++++++++++++ src/decoder/flac_pcm.h | 31 ++++++++++++++ 3 files changed, 133 insertions(+), 81 deletions(-) create mode 100644 src/decoder/flac_pcm.c create mode 100644 src/decoder/flac_pcm.h (limited to 'src/decoder') diff --git a/src/decoder/_flac_common.c b/src/decoder/_flac_common.c index ec326762b..2ccd2e536 100644 --- a/src/decoder/_flac_common.c +++ b/src/decoder/_flac_common.c @@ -23,6 +23,7 @@ #include "_flac_common.h" #include "flac_metadata.h" +#include "flac_pcm.h" #include @@ -102,87 +103,6 @@ void flac_error_common_cb(const char *plugin, } } -static void flac_convert_stereo16(int16_t *dest, - const FLAC__int32 * const buf[], - unsigned int position, unsigned int end) -{ - for (; position < end; ++position) { - *dest++ = buf[0][position]; - *dest++ = buf[1][position]; - } -} - -static void -flac_convert_16(int16_t *dest, - unsigned int num_channels, - const FLAC__int32 * const buf[], - unsigned int position, unsigned int end) -{ - unsigned int c_chan; - - for (; position < end; ++position) - for (c_chan = 0; c_chan < num_channels; c_chan++) - *dest++ = buf[c_chan][position]; -} - -/** - * Note: this function also handles 24 bit files! - */ -static void -flac_convert_32(int32_t *dest, - unsigned int num_channels, - const FLAC__int32 * const buf[], - unsigned int position, unsigned int end) -{ - unsigned int c_chan; - - for (; position < end; ++position) - for (c_chan = 0; c_chan < num_channels; c_chan++) - *dest++ = buf[c_chan][position]; -} - -static void -flac_convert_8(int8_t *dest, - unsigned int num_channels, - const FLAC__int32 * const buf[], - unsigned int position, unsigned int end) -{ - unsigned int c_chan; - - for (; position < end; ++position) - for (c_chan = 0; c_chan < num_channels; c_chan++) - *dest++ = buf[c_chan][position]; -} - -static void -flac_convert(void *dest, - unsigned int num_channels, unsigned sample_format, - const FLAC__int32 *const buf[], - unsigned int position, unsigned int end) -{ - switch (sample_format) { - case 16: - if (num_channels == 2) - flac_convert_stereo16((int16_t*)dest, buf, - position, end); - else - flac_convert_16((int16_t*)dest, num_channels, buf, - position, end); - break; - - case 24: - case 32: - flac_convert_32((int32_t*)dest, num_channels, buf, - position, end); - break; - - case 8: - flac_convert_8((int8_t*)dest, num_channels, buf, - position, end); - break; - } -} - FLAC__StreamDecoderWriteStatus flac_common_write(struct flac_data *data, const FLAC__Frame * frame, const FLAC__int32 *const buf[]) diff --git a/src/decoder/flac_pcm.c b/src/decoder/flac_pcm.c new file mode 100644 index 000000000..d37ef54e2 --- /dev/null +++ b/src/decoder/flac_pcm.c @@ -0,0 +1,101 @@ +/* + * Copyright (C) 2003-2009 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 "flac_pcm.h" + +static void flac_convert_stereo16(int16_t *dest, + const FLAC__int32 * const buf[], + unsigned int position, unsigned int end) +{ + for (; position < end; ++position) { + *dest++ = buf[0][position]; + *dest++ = buf[1][position]; + } +} + +static void +flac_convert_16(int16_t *dest, + unsigned int num_channels, + const FLAC__int32 * const buf[], + unsigned int position, unsigned int end) +{ + unsigned int c_chan; + + for (; position < end; ++position) + for (c_chan = 0; c_chan < num_channels; c_chan++) + *dest++ = buf[c_chan][position]; +} + +/** + * Note: this function also handles 24 bit files! + */ +static void +flac_convert_32(int32_t *dest, + unsigned int num_channels, + const FLAC__int32 * const buf[], + unsigned int position, unsigned int end) +{ + unsigned int c_chan; + + for (; position < end; ++position) + for (c_chan = 0; c_chan < num_channels; c_chan++) + *dest++ = buf[c_chan][position]; +} + +static void +flac_convert_8(int8_t *dest, + unsigned int num_channels, + const FLAC__int32 * const buf[], + unsigned int position, unsigned int end) +{ + unsigned int c_chan; + + for (; position < end; ++position) + for (c_chan = 0; c_chan < num_channels; c_chan++) + *dest++ = buf[c_chan][position]; +} + +void +flac_convert(void *dest, + unsigned int num_channels, unsigned sample_format, + const FLAC__int32 *const buf[], + unsigned int position, unsigned int end) +{ + switch (sample_format) { + case 16: + if (num_channels == 2) + flac_convert_stereo16((int16_t*)dest, buf, + position, end); + else + flac_convert_16((int16_t*)dest, num_channels, buf, + position, end); + break; + + case 24: + case 32: + flac_convert_32((int32_t*)dest, num_channels, buf, + position, end); + break; + + case 8: + flac_convert_8((int8_t*)dest, num_channels, buf, + position, end); + break; + } +} diff --git a/src/decoder/flac_pcm.h b/src/decoder/flac_pcm.h new file mode 100644 index 000000000..dca9d6824 --- /dev/null +++ b/src/decoder/flac_pcm.h @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2003-2009 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_FLAC_PCM_H +#define MPD_FLAC_PCM_H + +#include + +void +flac_convert(void *dest, + unsigned int num_channels, unsigned sample_format, + const FLAC__int32 *const buf[], + unsigned int position, unsigned int end); + +#endif -- cgit v1.2.3