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Josh Coalson
2007-09-12 05:27:34 +00:00
parent 6d6afdce3e
commit 0577344cb3
7 changed files with 594 additions and 0 deletions
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28
examples/cpp/decode/file/Makefile.am Normal file
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# 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.
EXTRA_DIST = \
Makefile.lite \
example_cpp_decode_file.dsp \
example_cpp_decode_file.vcproj \
noinst_PROGRAMS = example_cpp_decode_file
example_cpp_decode_file_LDADD = \
@OGG_LIBS@ \
@MINGW_WINSOCK_LIBS@ \
-lm
example_cpp_decode_file_SOURCES = main.c

41
examples/cpp/decode/file/Makefile.lite Normal file
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# 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.

100
examples/cpp/decode/file/example_cpp_decode_file.dsp Normal file
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# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /Yu"stdafx.h" /FD /c
# ADD CPP /nologo /MD /W3 /GX /O2 /I "..\..\..\..\include" /D "NDEBUG" /D "FLAC__NO_DLL" /D "WIN32" /D "_CONSOLE" /D "_MBCS" /FD /c
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# ADD LINK32 ..\..\..\..\obj\release\lib\libFLAC++_static.lib ..\..\..\..\obj\release\lib\libFLAC_static.lib ..\..\..\..\obj\release\lib\ogg_static.lib /nologo /subsystem:console /machine:I386
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# ADD CPP /nologo /MDd /W3 /Gm /GX /ZI /Od /I "..\..\..\..\include" /D "_DEBUG" /D "DEBUG" /D "FLAC__NO_DLL" /D "WIN32" /D "_CONSOLE" /D "_MBCS" /FD /GZ /c
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# ADD RSC /l 0x409 /d "_DEBUG"
BSC32=bscmake.exe
# ADD BASE BSC32 /nologo
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LINK32=link.exe
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
# ADD LINK32 ..\..\..\..\obj\release\lib\libFLAC++_static.lib ..\..\..\..\obj\debug\lib\libFLAC_static.lib ..\..\..\..\obj\release\lib\ogg_static.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
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# Begin Source File
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# PROP Default_Filter "h;hpp;hxx;hm;inl"
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204
examples/cpp/decode/file/example_cpp_decode_file.vcproj Normal file
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<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="8.00"
Name="example_cpp_decode_file"
ProjectGUID="{4cefbe00-c215-11db-8314-0800200c9a66}"
RootNamespace="example_cpp_decode_file"
Keyword="Win32Proj"
>
<Platforms>
<Platform
Name="Win32"
/>
</Platforms>
<ToolFiles>
</ToolFiles>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory="..\..\..\..\obj\debug\bin"
IntermediateDirectory="Debug"
ConfigurationType="1"
>
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Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
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<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="..\..\..\..\include"
PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;FLAC__NO_DLL;DEBUG"
MinimalRebuild="true"
BasicRuntimeChecks="3"
RuntimeLibrary="1"
UsePrecompiledHeader="0"
WarningLevel="3"
Detect64BitPortabilityProblems="true"
DebugInformationFormat="4"
CompileAs="0"
DisableSpecificWarnings="4267;4996"
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AdditionalDependencies="..\..\..\..\obj\release\lib\ogg_static.lib"
LinkIncremental="2"
IgnoreDefaultLibraryNames="uuid.lib"
GenerateDebugInformation="true"
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FavorSizeOrSpeed="1"
OmitFramePointers="true"
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AdditionalIncludeDirectories="..\..\..\..\include"
PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;FLAC__NO_DLL"
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BufferSecurityCheck="false"
UsePrecompiledHeader="0"
WarningLevel="3"
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185
examples/cpp/decode/file/main.cpp Normal file
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/* 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]);
}