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Commit 0577344c authored by Josh Coalson's avatar Josh Coalson
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examples/cpp/Makefile.am 0 → 100644
View file @ 0577344c
# FLAC - Free Lossless Audio Codec
# Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
#
# This file is part the FLAC project. FLAC is comprised of several
# components distributed under difference licenses. The codec libraries
# are distributed under Xiph.Org's BSD-like license (see the file
# COPYING.Xiph in this distribution). All other programs, libraries, and
# plugins are distributed under the GPL (see COPYING.GPL). The documentation
# is distributed under the Gnu FDL (see COPYING.FDL). Each file in the
# FLAC distribution contains at the top the terms under which it may be
# distributed.
#
# Since this particular file is relevant to all components of FLAC,
# it may be distributed under the Xiph.Org license, which is the least
# restrictive of those mentioned above. See the file COPYING.Xiph in this
# distribution.
SUBDIRS = decode
examples/cpp/decode/Makefile.am 0 → 100644
View file @ 0577344c
# FLAC - Free Lossless Audio Codec
# Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson
#
# This file is part the FLAC project. FLAC is comprised of several
# components distributed under difference licenses. The codec libraries
# are distributed under Xiph.Org's BSD-like license (see the file
# COPYING.Xiph in this distribution). All other programs, libraries, and
# plugins are distributed under the GPL (see COPYING.GPL). The documentation
# is distributed under the Gnu FDL (see COPYING.FDL). Each file in the
# FLAC distribution contains at the top the terms under which it may be
# distributed.
#
# Since this particular file is relevant to all components of FLAC,
# it may be distributed under the Xiph.Org license, which is the least
# restrictive of those mentioned above. See the file COPYING.Xiph in this
# distribution.
SUBDIRS = file
examples/cpp/decode/file/Makefile.am 0 → 100644
View file @ 0577344c
# example_cpp_decode_file - Simple FLAC file decoder using libFLAC
# Copyright (C) 2007 Josh Coalson
#
# 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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@OGG_LIBS@ \
@MINGW_WINSOCK_LIBS@ \
-lm
example_cpp_decode_file_SOURCES = main.c
examples/cpp/decode/file/Makefile.lite 0 → 100644
View file @ 0577344c
# example_cpp_decode_file - Simple FLAC file decoder using libFLAC
# Copyright (C) 2007 Josh Coalson
#
# 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# GNU makefile
#
topdir = ../../../..
libdir = $(topdir)/obj/$(BUILD)/lib
PROGRAM_NAME = example_cpp_decode_file
INCLUDES = -I$(topdir)/include
ifeq ($(DARWIN_BUILD),yes)
EXPLICIT_LIBS = $(libdir)/libFLAC++.a $(libdir)/libFLAC.a $(OGG_LIB_DIR)/libogg.a -lm
else
LIBS = -lFLAC++ -lFLAC -L$(OGG_LIB_DIR) -logg -lm
endif
SRCS_CPP = main.cpp
include $(topdir)/build/exe.mk
LINK = $(CCC) $(LINKAGE)
# DO NOT DELETE THIS LINE -- make depend depends on it.
examples/cpp/decode/file/example_cpp_decode_file.dsp 0 → 100644
View file @ 0577344c
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examples/cpp/decode/file/example_cpp_decode_file.vcproj 0 → 100644
View file @ 0577344c
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Version="8.00"
Name="example_cpp_decode_file"
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Name="Win32"
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examples/cpp/decode/file/main.cpp 0 → 100644
View file @ 0577344c
/* example_cpp_decode_file - Simple FLAC file decoder using libFLAC
* Copyright (C) 2007 Josh Coalson
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* This example shows how to use libFLAC to decode a FLAC file to a WAVE
* file. It only supports 16-bit stereo files.
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include "FLAC++/decoder.h"
FLAC__uint64 total_samples = 0;
unsigned sample_rate = 0;
unsigned channels = 0;
unsigned bps = 0;
static bool write_little_endian_uint16(FILE *f, FLAC__uint16 x)
{
return
fputc(x, f) != EOF &&
fputc(x >> 8, f) != EOF
;
}
static bool write_little_endian_int16(FILE *f, FLAC__int16 x)
{
return write_little_endian_uint16(f, (FLAC__uint16)x);
}
static bool write_little_endian_uint32(FILE *f, FLAC__uint32 x)
{
return
fputc(x, f) != EOF &&
fputc(x >> 8, f) != EOF &&
fputc(x >> 16, f) != EOF &&
fputc(x >> 24, f) != EOF
;
}
class OurDecoder: public FLAC::Decoder::File {
public:
OurDecoder(FILE *f_): FLAC::Decoder::File(), f(f_) { }
protected:
FILE *f;
virtual ::FLAC__StreamDecoderWriteStatus write_callback(const ::FLAC__Frame *frame, const FLAC__int32 * const buffer[]);
virtual void metadata_callback(const ::FLAC__StreamMetadata *metadata);
virtual void error_callback(::FLAC__StreamDecoderErrorStatus status);
};
int main(int argc, char *argv[])
{
bool ok = true;
FILE *fout;
if(argc != 3) {
fprintf(stderr, "usage: %s infile.flac outfile.wav\n", argv[0]);
return 1;
}
if((fout = fopen(argv[2], "wb")) == NULL) {
fprintf(stderr, "ERROR: opening %s for output\n", argv[2]);
return 1;
}
OurDecoder decoder(fout);
if(!decoder) {
fprintf(stderr, "ERROR: allocating decoder\n");
return 1;
}
(void)decoder.set_md5_checking(true);
FLAC__StreamDecoderInitStatus init_status = decoder.init(argv[1]);
if(init_status != FLAC__STREAM_DECODER_INIT_STATUS_OK) {
fprintf(stderr, "ERROR: initializing decoder: %s\n", FLAC__StreamDecoderInitStatusString[init_status]);
ok = false;
}
if(ok) {
ok = decoder.process_until_end_of_stream();
fprintf(stderr, "decoding: %s\n", ok? "succeeded" : "FAILED");
fprintf(stderr, " state: %s\n", decoder.get_state().resolved_as_cstring(decoder));
}
fclose(fout);
return 0;
}
::FLAC__StreamDecoderWriteStatus OurDecoder::write_callback(const ::FLAC__Frame *frame, const FLAC__int32 * const buffer[])
{
const FLAC__uint32 total_size = (FLAC__uint32)(total_samples * channels * (bps/8));
size_t i;
if(total_samples == 0) {
fprintf(stderr, "ERROR: this example only works for FLAC files that have a total_samples count in STREAMINFO\n");
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
if(channels != 2 || bps != 16) {
fprintf(stderr, "ERROR: this example only supports 16bit stereo streams\n");
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
/* write WAVE header before we write the first frame */
if(frame->header.number.sample_number == 0) {
if(
fwrite("RIFF", 1, 4, f) < 4 ||
!write_little_endian_uint32(f, total_size + 36) ||
fwrite("WAVEfmt ", 1, 8, f) < 8 ||
!write_little_endian_uint32(f, 16) ||
!write_little_endian_uint16(f, 1) ||
!write_little_endian_uint16(f, (FLAC__uint16)channels) ||
!write_little_endian_uint32(f, sample_rate) ||
!write_little_endian_uint32(f, sample_rate * channels * (bps/8)) ||
!write_little_endian_uint16(f, (FLAC__uint16)(channels * (bps/8))) || /* block align */
!write_little_endian_uint16(f, (FLAC__uint16)bps) ||
fwrite("data", 1, 4, f) < 4 ||
!write_little_endian_uint32(f, total_size)
) {
fprintf(stderr, "ERROR: write error\n");
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
}
/* write decoded PCM samples */
for(i = 0; i < frame->header.blocksize; i++) {
if(
!write_little_endian_int16(f, (FLAC__int16)buffer[0][i]) || /* left channel */
!write_little_endian_int16(f, (FLAC__int16)buffer[1][i]) /* right channel */
) {
fprintf(stderr, "ERROR: write error\n");
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
}
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
void OurDecoder::metadata_callback(const ::FLAC__StreamMetadata *metadata)
{
/* print some stats */
if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
/* save for later */
total_samples = metadata->data.stream_info.total_samples;
sample_rate = metadata->data.stream_info.sample_rate;
channels = metadata->data.stream_info.channels;
bps = metadata->data.stream_info.bits_per_sample;
fprintf(stderr, "sample rate : %u Hz\n", sample_rate);
fprintf(stderr, "channels : %u\n", channels);
fprintf(stderr, "bits per sample: %u\n", bps);
#ifdef _MSC_VER
fprintf(stderr, "total samples : %I64u\n", total_samples);
#else
fprintf(stderr, "total samples : %llu\n", total_samples);
#endif
}
}
void OurDecoder::error_callback(::FLAC__StreamDecoderErrorStatus status)
{
fprintf(stderr, "Got error callback: %s\n", FLAC__StreamDecoderErrorStatusString[status]);
}
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