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initial import, still more work to be done...

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This commit is contained in:
Josh Coalson 2002-08-06 05:31:17 +00:00
parent 546c95729b
commit 48d852cb08
15 changed files with 3280 additions and 0 deletions
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42
src/libOggFLAC/Makefile.am Normal file
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# libOggFLAC - Free Lossless Audio Codec + Ogg library
# Copyright (C) 2002 Josh Coalson
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
lib_LTLIBRARIES = libOggFLAC.la
if DEBUG
DEBUGCFLAGS =
endif
CFLAGS = @CFLAGS@ $(DEBUGCFLAGS)
SUBDIRS = $(ARCH_SUBDIRS) include .
m4datadir = $(datadir)/aclocal
m4data_DATA = libOggFLAC.m4
EXTRA_DIST = \
Makefile.lite \
Makefile.vc \
libOggFLAC.m4
# see 'http://www.gnu.org/software/libtool/manual.html#Versioning' for numbering convention
libOggFLAC_la_LDFLAGS = -version-info 0:0:0
libOggFLAC_la_SOURCES = \
file_decoder.c \
seekable_stream_decoder.c \
stream_decoder.c \
stream_encoder.c

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src/libOggFLAC/Makefile.lite Normal file
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# libOggFLAC - Free Lossless Audio Codec + Ogg library
# Copyright (C) 2002 Josh Coalson
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
#
# GNU makefile
#
LIB_NAME = libOggFLAC
ifeq ($(DARWIN_BUILD),yes)
DEFINES =
else
ifeq ($(SOLARIS_BUILD),yes)
DEFINES =
else
DEFINES =
endif
endif
INCLUDES = -I./include -I../../include
DEBUG_CFLAGS =
OBJS = \
file_decoder.o \
seekable_stream_decoder.o \
stream_decoder.o \
stream_encoder.o
include ../../build/lib.mk
# DO NOT DELETE THIS LINE -- make depend depends on it.

44
src/libOggFLAC/Makefile.vc Normal file
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# libOggFLAC - Free Lossless Audio Codec + Ogg library
# Copyright (C) 2002 Josh Coalson
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
!include <win32.mak>
!IFDEF DEBUG
.c.obj:
$(cc) /D "_LIB" /GX $(cdebug) $(cflags) /I ".\include" /I "..\..\include" -DSTRICT -YX /Od /D "_DEBUG" $<
!else
.c.obj:
$(cc) /D "_LIB" /O2 $(crelease) $(cflags) /I ".\include" /I "..\..\include" -DSTRICT -YX -DNODEBUG $<
!endif
C_FILES= \
file_decoder.c \
seekable_stream_decoder.c \
stream_decoder.c \
stream_encoder.c
OBJS= $(C_FILES:.c=.obj)
all: libOggFLAC.lib
libOggFLAC.lib: $(OBJS)
link.exe -lib /nodefaultlib -out:../../obj/lib/$*.lib $(OBJS)
clean:
-del *.obj ia32\*.obj *.pch
-del ..\..\obj\lib\libOggFLAC.lib ..\..\obj\lib\libOggFLAC.pdb

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src/libOggFLAC/file_decoder.c Normal file
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/* libOggFLAC - Free Lossless Audio Codec + Ogg library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <stdlib.h> /* for malloc() */
#include <string.h> /* for strcmp() */
#include <sys/stat.h> /* for stat() */
#if defined _MSC_VER || defined __MINGW32__
#include <io.h> /* for _setmode() */
#include <fcntl.h> /* for _O_BINARY */
#elif defined __CYGWIN__
#include <io.h> /* for _setmode(), O_BINARY */
#endif
#include "FLAC/assert.h"
#include "protected/file_decoder.h"
#include "protected/seekable_stream_decoder.h"
#include "private/md5.h"
/***********************************************************************
*
* Private class method prototypes
*
***********************************************************************/
static void set_defaults_(FLAC__FileDecoder *decoder);
static FILE *get_binary_stdin_();
static FLAC__SeekableStreamDecoderReadStatus read_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data);
static FLAC__SeekableStreamDecoderSeekStatus seek_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data);
static FLAC__SeekableStreamDecoderTellStatus tell_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data);
static FLAC__SeekableStreamDecoderLengthStatus length_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data);
static FLAC__bool eof_callback_(const FLAC__SeekableStreamDecoder *decoder, void *client_data);
static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
static void metadata_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
static void error_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
/***********************************************************************
*
* Private class data
*
***********************************************************************/
typedef struct FLAC__FileDecoderPrivate {
FLAC__FileDecoderWriteCallback write_callback;
FLAC__FileDecoderMetadataCallback metadata_callback;
FLAC__FileDecoderErrorCallback error_callback;
void *client_data;
FILE *file;
char *filename; /* == NULL if stdin */
FLAC__SeekableStreamDecoder *seekable_stream_decoder;
} FLAC__FileDecoderPrivate;
/***********************************************************************
*
* Public static class data
*
***********************************************************************/
const char * const FLAC__FileDecoderStateString[] = {
"FLAC__FILE_DECODER_OK",
"FLAC__FILE_DECODER_END_OF_FILE",
"FLAC__FILE_DECODER_ERROR_OPENING_FILE",
"FLAC__FILE_DECODER_MEMORY_ALLOCATION_ERROR",
"FLAC__FILE_DECODER_SEEK_ERROR",
"FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_DECODER_ERROR",
"FLAC__FILE_DECODER_ALREADY_INITIALIZED",
"FLAC__FILE_DECODER_INVALID_CALLBACK",
"FLAC__FILE_DECODER_UNINITIALIZED"
};
/***********************************************************************
*
* Class constructor/destructor
*
***********************************************************************/
FLAC__FileDecoder *FLAC__file_decoder_new()
{
FLAC__FileDecoder *decoder;
FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
decoder = (FLAC__FileDecoder*)malloc(sizeof(FLAC__FileDecoder));
if(decoder == 0) {
return 0;
}
memset(decoder, 0, sizeof(FLAC__FileDecoder));
decoder->protected_ = (FLAC__FileDecoderProtected*)malloc(sizeof(FLAC__FileDecoderProtected));
if(decoder->protected_ == 0) {
free(decoder);
return 0;
}
memset(decoder->protected_, 0, sizeof(FLAC__FileDecoderProtected));
decoder->private_ = (FLAC__FileDecoderPrivate*)malloc(sizeof(FLAC__FileDecoderPrivate));
if(decoder->private_ == 0) {
free(decoder->protected_);
free(decoder);
return 0;
}
memset(decoder->private_, 0, sizeof(FLAC__FileDecoderPrivate));
decoder->private_->seekable_stream_decoder = FLAC__seekable_stream_decoder_new();
if(0 == decoder->private_->seekable_stream_decoder) {
free(decoder->private_);
free(decoder->protected_);
free(decoder);
return 0;
}
decoder->private_->file = 0;
set_defaults_(decoder);
decoder->protected_->state = FLAC__FILE_DECODER_UNINITIALIZED;
return decoder;
}
void FLAC__file_decoder_delete(FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
(void)FLAC__file_decoder_finish(decoder);
FLAC__seekable_stream_decoder_delete(decoder->private_->seekable_stream_decoder);
free(decoder->private_);
free(decoder->protected_);
free(decoder);
}
/***********************************************************************
*
* Public class methods
*
***********************************************************************/
FLAC__FileDecoderState FLAC__file_decoder_init(FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
return decoder->protected_->state = FLAC__FILE_DECODER_ALREADY_INITIALIZED;
if(0 == decoder->private_->write_callback || 0 == decoder->private_->metadata_callback || 0 == decoder->private_->error_callback)
return decoder->protected_->state = FLAC__FILE_DECODER_INVALID_CALLBACK;
if(0 == decoder->private_->filename)
decoder->private_->file = get_binary_stdin_();
else
decoder->private_->file = fopen(decoder->private_->filename, "rb");
if(decoder->private_->file == 0)
return decoder->protected_->state = FLAC__FILE_DECODER_ERROR_OPENING_FILE;
FLAC__seekable_stream_decoder_set_read_callback(decoder->private_->seekable_stream_decoder, read_callback_);
FLAC__seekable_stream_decoder_set_seek_callback(decoder->private_->seekable_stream_decoder, seek_callback_);
FLAC__seekable_stream_decoder_set_tell_callback(decoder->private_->seekable_stream_decoder, tell_callback_);
FLAC__seekable_stream_decoder_set_length_callback(decoder->private_->seekable_stream_decoder, length_callback_);
FLAC__seekable_stream_decoder_set_eof_callback(decoder->private_->seekable_stream_decoder, eof_callback_);
FLAC__seekable_stream_decoder_set_write_callback(decoder->private_->seekable_stream_decoder, write_callback_);
FLAC__seekable_stream_decoder_set_metadata_callback(decoder->private_->seekable_stream_decoder, metadata_callback_);
FLAC__seekable_stream_decoder_set_error_callback(decoder->private_->seekable_stream_decoder, error_callback_);
FLAC__seekable_stream_decoder_set_client_data(decoder->private_->seekable_stream_decoder, decoder);
if(FLAC__seekable_stream_decoder_init(decoder->private_->seekable_stream_decoder) != FLAC__SEEKABLE_STREAM_DECODER_OK)
return decoder->protected_->state = FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR;
return decoder->protected_->state = FLAC__FILE_DECODER_OK;
}
FLAC__bool FLAC__file_decoder_finish(FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
if(decoder->protected_->state == FLAC__FILE_DECODER_UNINITIALIZED)
return true;
FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
if(0 != decoder->private_->file && decoder->private_->file != stdin) {
fclose(decoder->private_->file);
decoder->private_->file = 0;
}
if(0 != decoder->private_->filename) {
free(decoder->private_->filename);
decoder->private_->filename = 0;
}
set_defaults_(decoder);
decoder->protected_->state = FLAC__FILE_DECODER_UNINITIALIZED;
return FLAC__seekable_stream_decoder_finish(decoder->private_->seekable_stream_decoder);
}
FLAC__bool FLAC__file_decoder_set_md5_checking(FLAC__FileDecoder *decoder, FLAC__bool value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_decoder_set_md5_checking(decoder->private_->seekable_stream_decoder, value);
}
FLAC__bool FLAC__file_decoder_set_filename(FLAC__FileDecoder *decoder, const char *value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != value);
if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
return false;
if(0 != decoder->private_->filename) {
free(decoder->private_->filename);
decoder->private_->filename = 0;
}
if(0 != strcmp(value, "-")) {
if(0 == (decoder->private_->filename = (char*)malloc(strlen(value)+1))) {
decoder->protected_->state = FLAC__FILE_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}
strcpy(decoder->private_->filename, value);
}
return true;
}
FLAC__bool FLAC__file_decoder_set_write_callback(FLAC__FileDecoder *decoder, FLAC__FileDecoderWriteCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
return false;
decoder->private_->write_callback = value;
return true;
}
FLAC__bool FLAC__file_decoder_set_metadata_callback(FLAC__FileDecoder *decoder, FLAC__FileDecoderMetadataCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
return false;
decoder->private_->metadata_callback = value;
return true;
}
FLAC__bool FLAC__file_decoder_set_error_callback(FLAC__FileDecoder *decoder, FLAC__FileDecoderErrorCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
return false;
decoder->private_->error_callback = value;
return true;
}
FLAC__bool FLAC__file_decoder_set_client_data(FLAC__FileDecoder *decoder, void *value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
return false;
decoder->private_->client_data = value;
return true;
}
FLAC__bool FLAC__file_decoder_set_metadata_respond(FLAC__FileDecoder *decoder, FLAC__MetadataType type)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_decoder_set_metadata_respond(decoder->private_->seekable_stream_decoder, type);
}
FLAC__bool FLAC__file_decoder_set_metadata_respond_application(FLAC__FileDecoder *decoder, const FLAC__byte id[4])
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_decoder_set_metadata_respond_application(decoder->private_->seekable_stream_decoder, id);
}
FLAC__bool FLAC__file_decoder_set_metadata_respond_all(FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_decoder_set_metadata_respond_all(decoder->private_->seekable_stream_decoder);
}
FLAC__bool FLAC__file_decoder_set_metadata_ignore(FLAC__FileDecoder *decoder, FLAC__MetadataType type)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_decoder_set_metadata_ignore(decoder->private_->seekable_stream_decoder, type);
}
FLAC__bool FLAC__file_decoder_set_metadata_ignore_application(FLAC__FileDecoder *decoder, const FLAC__byte id[4])
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_decoder_set_metadata_ignore_application(decoder->private_->seekable_stream_decoder, id);
}
FLAC__bool FLAC__file_decoder_set_metadata_ignore_all(FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_->seekable_stream_decoder);
if(decoder->protected_->state != FLAC__FILE_DECODER_UNINITIALIZED)
return false;
return FLAC__seekable_stream_decoder_set_metadata_ignore_all(decoder->private_->seekable_stream_decoder);
}
FLAC__FileDecoderState FLAC__file_decoder_get_state(const FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
return decoder->protected_->state;
}
FLAC__SeekableStreamDecoderState FLAC__file_decoder_get_seekable_stream_decoder_state(const FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__seekable_stream_decoder_get_state(decoder->private_->seekable_stream_decoder);
}
FLAC__StreamDecoderState FLAC__file_decoder_get_stream_decoder_state(const FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__seekable_stream_decoder_get_stream_decoder_state(decoder->private_->seekable_stream_decoder);
}
FLAC__bool FLAC__file_decoder_get_md5_checking(const FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__seekable_stream_decoder_get_md5_checking(decoder->private_->seekable_stream_decoder);
}
unsigned FLAC__file_decoder_get_channels(const FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__seekable_stream_decoder_get_channels(decoder->private_->seekable_stream_decoder);
}
FLAC__ChannelAssignment FLAC__file_decoder_get_channel_assignment(const FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__seekable_stream_decoder_get_channel_assignment(decoder->private_->seekable_stream_decoder);
}
unsigned FLAC__file_decoder_get_bits_per_sample(const FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__seekable_stream_decoder_get_bits_per_sample(decoder->private_->seekable_stream_decoder);
}
unsigned FLAC__file_decoder_get_sample_rate(const FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__seekable_stream_decoder_get_sample_rate(decoder->private_->seekable_stream_decoder);
}
unsigned FLAC__file_decoder_get_blocksize(const FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__seekable_stream_decoder_get_blocksize(decoder->private_->seekable_stream_decoder);
}
FLAC__bool FLAC__file_decoder_process_single(FLAC__FileDecoder *decoder)
{
FLAC__bool ret;
FLAC__ASSERT(0 != decoder);
if(decoder->private_->seekable_stream_decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
decoder->protected_->state = FLAC__FILE_DECODER_END_OF_FILE;
if(decoder->protected_->state == FLAC__FILE_DECODER_END_OF_FILE)
return true;
FLAC__ASSERT(decoder->protected_->state == FLAC__FILE_DECODER_OK);
ret = FLAC__seekable_stream_decoder_process_single(decoder->private_->seekable_stream_decoder);
if(!ret)
decoder->protected_->state = FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR;
return ret;
}
FLAC__bool FLAC__file_decoder_process_until_end_of_metadata(FLAC__FileDecoder *decoder)
{
FLAC__bool ret;
FLAC__ASSERT(0 != decoder);
if(decoder->private_->seekable_stream_decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
decoder->protected_->state = FLAC__FILE_DECODER_END_OF_FILE;
if(decoder->protected_->state == FLAC__FILE_DECODER_END_OF_FILE)
return true;
FLAC__ASSERT(decoder->protected_->state == FLAC__FILE_DECODER_OK);
ret = FLAC__seekable_stream_decoder_process_until_end_of_metadata(decoder->private_->seekable_stream_decoder);
if(!ret)
decoder->protected_->state = FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR;
return ret;
}
FLAC__bool FLAC__file_decoder_process_until_end_of_file(FLAC__FileDecoder *decoder)
{
FLAC__bool ret;
FLAC__ASSERT(0 != decoder);
if(decoder->private_->seekable_stream_decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
decoder->protected_->state = FLAC__FILE_DECODER_END_OF_FILE;
if(decoder->protected_->state == FLAC__FILE_DECODER_END_OF_FILE)
return true;
FLAC__ASSERT(decoder->protected_->state == FLAC__FILE_DECODER_OK);
ret = FLAC__seekable_stream_decoder_process_until_end_of_stream(decoder->private_->seekable_stream_decoder);
if(!ret)
decoder->protected_->state = FLAC__FILE_DECODER_SEEKABLE_STREAM_DECODER_ERROR;
return ret;
}
FLAC__bool FLAC__file_decoder_seek_absolute(FLAC__FileDecoder *decoder, FLAC__uint64 sample)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(decoder->protected_->state == FLAC__FILE_DECODER_OK || decoder->protected_->state == FLAC__FILE_DECODER_END_OF_FILE);
if(decoder->private_->filename == 0) { /* means the file is stdin... */
decoder->protected_->state = FLAC__FILE_DECODER_SEEK_ERROR;
return false;
}
if(!FLAC__seekable_stream_decoder_seek_absolute(decoder->private_->seekable_stream_decoder, sample)) {
decoder->protected_->state = FLAC__FILE_DECODER_SEEK_ERROR;
return false;
}
else {
decoder->protected_->state = FLAC__FILE_DECODER_OK;
return true;
}
}
/***********************************************************************
*
* Private class methods
*
***********************************************************************/
void set_defaults_(FLAC__FileDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
decoder->private_->filename = 0;
decoder->private_->write_callback = 0;
decoder->private_->metadata_callback = 0;
decoder->private_->error_callback = 0;
decoder->private_->client_data = 0;
}
/*
* This will forcibly set stdin to binary mode (for OSes that require it)
*/
FILE *get_binary_stdin_()
{
/* if something breaks here it is probably due to the presence or
* absence of an underscore before the identifiers 'setmode',
* 'fileno', and/or 'O_BINARY'; check your system header files.
*/
#if defined _MSC_VER || defined __MINGW32__
_setmode(_fileno(stdin), _O_BINARY);
#elif defined __CYGWIN__
/* almost certainly not needed for any modern Cygwin, but let's be safe... */
setmode(_fileno(stdin), _O_BINARY);
#endif
return stdin;
}
FLAC__SeekableStreamDecoderReadStatus read_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data)
{
FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
(void)decoder;
if(*bytes > 0) {
size_t bytes_read = fread(buffer, sizeof(FLAC__byte), *bytes, file_decoder->private_->file);
if(bytes_read == 0 && !feof(file_decoder->private_->file)) {
return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR;
}
else {
*bytes = (unsigned)bytes_read;
return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK;
}
}
else
return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR; /* abort to avoid a deadlock */
}
FLAC__SeekableStreamDecoderSeekStatus seek_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
{
FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
(void)decoder;
if(fseek(file_decoder->private_->file, (long)absolute_byte_offset, SEEK_SET) < 0)
return FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR;
else
return FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK;
}
FLAC__SeekableStreamDecoderTellStatus tell_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
{
FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
long pos;
(void)decoder;
if((pos = ftell(file_decoder->private_->file)) < 0)
return FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_ERROR;
else {
*absolute_byte_offset = (FLAC__uint64)pos;
return FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK;
}
}
FLAC__SeekableStreamDecoderLengthStatus length_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
{
FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
struct stat filestats;
(void)decoder;
if(0 == file_decoder->private_->filename || stat(file_decoder->private_->filename, &filestats) != 0)
return FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_ERROR;
else {
*stream_length = (FLAC__uint64)filestats.st_size;
return FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK;
}
}
FLAC__bool eof_callback_(const FLAC__SeekableStreamDecoder *decoder, void *client_data)
{
FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
(void)decoder;
return feof(file_decoder->private_->file);
}
FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
{
FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
(void)decoder;
return file_decoder->private_->write_callback(file_decoder, frame, buffer, file_decoder->private_->client_data);
}
void metadata_callback_(const FLAC__SeekableStreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
{
FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
(void)decoder;
file_decoder->private_->metadata_callback(file_decoder, metadata, file_decoder->private_->client_data);
}
void error_callback_(const FLAC__SeekableStreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
{
FLAC__FileDecoder *file_decoder = (FLAC__FileDecoder *)client_data;
(void)decoder;
file_decoder->private_->error_callback(file_decoder, status, file_decoder->private_->client_data);
}

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# libOggFLAC - Free Lossless Audio Codec + Ogg library
# Copyright (C) 2002 Josh Coalson
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
SUBDIRS = private

24
src/libOggFLAC/include/protected/Makefile.am Normal file
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# libOggFLAC - Free Lossless Audio Codec + Ogg library
# Copyright (C) 2002 Josh Coalson
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
noinst_HEADERS = \
all.h \
file_decoder.h \
seekable_stream_decoder.h \
stream_decoder.h \
stream_encoder.h

28
src/libOggFLAC/include/protected/all.h Normal file
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/* libOggFLAC - Free Lossless Audio Codec + Ogg library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef OggFLAC__PROTECTED__ALL_H
#define OggFLAC__PROTECTED__ALL_H
#include "file_decoder.h"
#include "seekable_stream_decoder.h"
#include "stream_decoder.h"
#include "stream_encoder.h"
#endif

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/* libOggFLAC - Free Lossless Audio Codec + Ogg library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef OggFLAC__PROTECTED__FILE_DECODER_H
#define OggFLAC__PROTECTED__FILE_DECODER_H
#include "OggFLAC/file_decoder.h"
typedef struct OggFLAC__FileDecoderProtected {
OggFLAC__FileDecoderState state;
} OggFLAC__FileDecoderProtected;
#endif

29
src/libOggFLAC/include/protected/seekable_stream_decoder.h Normal file
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/* libOggFLAC - Free Lossless Audio Codec + Ogg library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef OggFLAC__PROTECTED__SEEKABLE_STREAM_DECODER_H
#define OggFLAC__PROTECTED__SEEKABLE_STREAM_DECODER_H
#include "OggFLAC/seekable_stream_decoder.h"
typedef struct OggFLAC__SeekableStreamDecoderProtected {
OggFLAC__SeekableStreamDecoderState state;
} OggFLAC__SeekableStreamDecoderProtected;
#endif

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src/libOggFLAC/include/protected/stream_decoder.h Normal file
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/* libOggFLAC - Free Lossless Audio Codec + Ogg library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef OggFLAC__PROTECTED__STREAM_DECODER_H
#define OggFLAC__PROTECTED__STREAM_DECODER_H
#include "OggFLAC/stream_decoder.h"
typedef struct OggFLAC__StreamDecoderProtected {
OggFLAC__StreamDecoderState state;
} OggFLAC__StreamDecoderProtected;
#endif

29
src/libOggFLAC/include/protected/stream_encoder.h Normal file
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/* libOggFLAC - Free Lossless Audio Codec + Ogg library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef OggFLAC__PROTECTED__STREAM_ENCODER_H
#define OggFLAC__PROTECTED__STREAM_ENCODER_H
#include "OggFLAC/stream_encoder.h"
typedef struct OggFLAC__StreamEncoderProtected {
OggFLAC__StreamEncoderState state;
} OggFLAC__StreamEncoderProtected;
#endif

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src/libOggFLAC/libOggFLAC.m4 Normal file
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# Configure paths for libOggFLAC
# "Inspired" by ogg.m4
dnl AM_PATH_LIBOGGFLAC([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
dnl Test for libOggFLAC, and define LIBOGGFLAC_CFLAGS and LIBOGGFLAC_LIBS
dnl
AC_DEFUN(AM_PATH_LIBOGGFLAC,
[dnl
dnl Get the cflags and libraries
dnl
AC_ARG_WITH(libOggFLAC,[ --with-libOggFLAC=PFX Prefix where libOggFLAC is installed (optional)], libOggFLAC_prefix="$withval", libOggFLAC_prefix="")
AC_ARG_WITH(libOggFLAC-libraries,[ --with-libOggFLAC-libraries=DIR Directory where libOggFLAC library is installed (optional)], libOggFLAC_libraries="$withval", libOggFLAC_libraries="")
AC_ARG_WITH(libOggFLAC-includes,[ --with-libOggFLAC-includes=DIR Directory where libOggFLAC header files are installed (optional)], libOggFLAC_includes="$withval", libOggFLAC_includes="")
AC_ARG_ENABLE(libOggFLACtest, [ --disable-libOggFLACtest Do not try to compile and run a test libOggFLAC program],, enable_libOggFLACtest=yes)
if test "x$libOggFLAC_libraries" != "x" ; then
LIBOGGFLAC_LIBS="-L$libOggFLAC_libraries"
elif test "x$libOggFLAC_prefix" != "x" ; then
LIBOGGFLAC_LIBS="-L$libOggFLAC_prefix/lib"
elif test "x$prefix" != "xNONE" ; then
LIBOGGFLAC_LIBS="-L$prefix/lib"
fi
LIBOGGFLAC_LIBS="$LIBOGGFLAC_LIBS -lOggFLAC -lFLAC -lm"
if test "x$libOggFLAC_includes" != "x" ; then
LIBOGGFLAC_CFLAGS="-I$libOggFLAC_includes"
elif test "x$libOggFLAC_prefix" != "x" ; then
LIBOGGFLAC_CFLAGS="-I$libOggFLAC_prefix/include"
elif test "$prefix" != "xNONE"; then
LIBOGGFLAC_CFLAGS="-I$prefix/include"
fi
AC_MSG_CHECKING(for libOggFLAC)
no_libOggFLAC=""
if test "x$enable_libOggFLACtest" = "xyes" ; then
ac_save_CFLAGS="$CFLAGS"
ac_save_CXXFLAGS="$CXXFLAGS"
ac_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $LIBOGGFLAC_CFLAGS"
CXXFLAGS="$CXXFLAGS $LIBOGGFLAC_CFLAGS"
LIBS="$LIBS $LIBOGGFLAC_LIBS"
dnl
dnl Now check if the installed libOggFLAC is sufficiently new.
dnl
rm -f conf.libOggFLACtest
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <OggFLAC/stream_decoder.h>
int main ()
{
system("touch conf.libOggFLACtest");
return 0;
}
],, no_libOggFLAC=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
if test "x$no_libOggFLAC" = "x" ; then
AC_MSG_RESULT(yes)
ifelse([$1], , :, [$1])
else
AC_MSG_RESULT(no)
if test -f conf.libOggFLACtest ; then
:
else
echo "*** Could not run libOggFLAC test program, checking why..."
CFLAGS="$CFLAGS $LIBOGGFLAC_CFLAGS"
LIBS="$LIBS $LIBOGGFLAC_LIBS"
AC_TRY_LINK([
#include <stdio.h>
#include <OggFLAC/stream_decoder.h>
], [ return 0; ],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding libOggFLAC or finding the wrong"
echo "*** version of libOggFLAC. If it is not finding libOggFLAC, you'll need to set your"
echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
echo "*** to the installed location Also, make sure you have run ldconfig if that"
echo "*** is required on your system"
echo "***"
echo "*** If you have an old version installed, it is best to remove it, although"
echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
[ echo "*** The test program failed to compile or link. See the file config.log for the"
echo "*** exact error that occured. This usually means libOggFLAC was incorrectly installed"
echo "*** or that you have moved libOggFLAC since it was installed. In the latter case, you"
echo "*** may want to edit the libOggFLAC-config script: $LIBOGGFLAC_CONFIG" ])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
LIBOGGFLAC_CFLAGS=""
LIBOGGFLAC_LIBS=""
ifelse([$2], , :, [$2])
fi
AC_SUBST(LIBOGGFLAC_CFLAGS)
AC_SUBST(LIBOGGFLAC_LIBS)
rm -f conf.libOggFLACtest
])

990
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/* libOggFLAC - Free Lossless Audio Codec + Ogg library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <stdlib.h> /* for malloc() */
#include <string.h> /* for memcpy()/memcmp() */
#include "FLAC/assert.h"
#include "protected/seekable_stream_decoder.h"
#include "protected/stream_decoder.h"
#include "private/md5.h"
/***********************************************************************
*
* Private class method prototypes
*
***********************************************************************/
static void set_defaults_(FLAC__SeekableStreamDecoder *decoder);
static FLAC__StreamDecoderReadStatus read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data);
static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data);
static void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data);
static void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
static FLAC__bool seek_to_absolute_sample_(FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample);
/***********************************************************************
*
* Private class data
*
***********************************************************************/
typedef struct FLAC__SeekableStreamDecoderPrivate {
FLAC__SeekableStreamDecoderReadCallback read_callback;
FLAC__SeekableStreamDecoderSeekCallback seek_callback;
FLAC__SeekableStreamDecoderTellCallback tell_callback;
FLAC__SeekableStreamDecoderLengthCallback length_callback;
FLAC__SeekableStreamDecoderEofCallback eof_callback;
FLAC__SeekableStreamDecoderWriteCallback write_callback;
FLAC__SeekableStreamDecoderMetadataCallback metadata_callback;
FLAC__SeekableStreamDecoderErrorCallback error_callback;
void *client_data;
FLAC__StreamDecoder *stream_decoder;
FLAC__bool do_md5_checking; /* initially gets protected_->md5_checking but is turned off after a seek */
struct MD5Context md5context;
FLAC__byte stored_md5sum[16]; /* this is what is stored in the metadata */
FLAC__byte computed_md5sum[16]; /* this is the sum we computed from the decoded data */
/* the rest of these are only used for seeking: */
FLAC__StreamMetadata_StreamInfo stream_info; /* we keep this around so we can figure out how to seek quickly */
const FLAC__StreamMetadata_SeekTable *seek_table; /* we hold a pointer to the stream decoder's seek table for the same reason */
/* Since we always want to see the STREAMINFO and SEEK_TABLE blocks at this level, we need some extra flags to keep track of whether they should be passed on up through the metadata_callback */
FLAC__bool ignore_stream_info_block;
FLAC__bool ignore_seek_table_block;
FLAC__Frame last_frame; /* holds the info of the last frame we seeked to */
FLAC__uint64 target_sample;
} FLAC__SeekableStreamDecoderPrivate;
/***********************************************************************
*
* Public static class data
*
***********************************************************************/
const char * const FLAC__SeekableStreamDecoderStateString[] = {
"FLAC__SEEKABLE_STREAM_DECODER_OK",
"FLAC__SEEKABLE_STREAM_DECODER_SEEKING",
"FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM",
"FLAC__SEEKABLE_STREAM_DECODER_MEMORY_ALLOCATION_ERROR",
"FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR",
"FLAC__SEEKABLE_STREAM_DECODER_READ_ERROR",
"FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR",
"FLAC__SEEKABLE_STREAM_DECODER_ALREADY_INITIALIZED",
"FLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK",
"FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED"
};
const char * const FLAC__SeekableStreamDecoderReadStatusString[] = {
"FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK",
"FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR"
};
const char * const FLAC__SeekableStreamDecoderSeekStatusString[] = {
"FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK",
"FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR"
};
const char * const FLAC__SeekableStreamDecoderTellStatusString[] = {
"FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK",
"FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_ERROR"
};
const char * const FLAC__SeekableStreamDecoderLengthStatusString[] = {
"FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK",
"FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_ERROR"
};
/***********************************************************************
*
* Class constructor/destructor
*
***********************************************************************/
FLAC__SeekableStreamDecoder *FLAC__seekable_stream_decoder_new()
{
FLAC__SeekableStreamDecoder *decoder;
FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
decoder = (FLAC__SeekableStreamDecoder*)malloc(sizeof(FLAC__SeekableStreamDecoder));
if(decoder == 0) {
return 0;
}
memset(decoder, 0, sizeof(FLAC__SeekableStreamDecoder));
decoder->protected_ = (FLAC__SeekableStreamDecoderProtected*)malloc(sizeof(FLAC__SeekableStreamDecoderProtected));
if(decoder->protected_ == 0) {
free(decoder);
return 0;
}
memset(decoder->protected_, 0, sizeof(FLAC__SeekableStreamDecoderProtected));
decoder->private_ = (FLAC__SeekableStreamDecoderPrivate*)malloc(sizeof(FLAC__SeekableStreamDecoderPrivate));
if(decoder->private_ == 0) {
free(decoder->protected_);
free(decoder);
return 0;
}
memset(decoder->private_, 0, sizeof(FLAC__SeekableStreamDecoderPrivate));
decoder->private_->stream_decoder = FLAC__stream_decoder_new();
if(0 == decoder->private_->stream_decoder) {
free(decoder->private_);
free(decoder->protected_);
free(decoder);
return 0;
}
set_defaults_(decoder);
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED;
return decoder;
}
void FLAC__seekable_stream_decoder_delete(FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->private_->stream_decoder);
(void)FLAC__seekable_stream_decoder_finish(decoder);
FLAC__stream_decoder_delete(decoder->private_->stream_decoder);
free(decoder->private_);
free(decoder->protected_);
free(decoder);
}
/***********************************************************************
*
* Public class methods
*
***********************************************************************/
FLAC__SeekableStreamDecoderState FLAC__seekable_stream_decoder_init(FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_ALREADY_INITIALIZED;
if(0 == decoder->private_->read_callback || 0 == decoder->private_->seek_callback || 0 == decoder->private_->tell_callback || 0 == decoder->private_->length_callback || 0 == decoder->private_->eof_callback)
return decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK;
if(0 == decoder->private_->write_callback || 0 == decoder->private_->metadata_callback || 0 == decoder->private_->error_callback)
return decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK;
decoder->private_->seek_table = 0;
decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
/* We initialize the MD5Context even though we may never use it. This is
* because md5 checking may be turned on to start and then turned off if a
* seek occurs. So we always init the context here and finalize it in
* FLAC__seekable_stream_decoder_finish() to make sure things are always
* cleaned up properly.
*/
MD5Init(&decoder->private_->md5context);
FLAC__stream_decoder_set_read_callback(decoder->private_->stream_decoder, read_callback_);
FLAC__stream_decoder_set_write_callback(decoder->private_->stream_decoder, write_callback_);
FLAC__stream_decoder_set_metadata_callback(decoder->private_->stream_decoder, metadata_callback_);
FLAC__stream_decoder_set_error_callback(decoder->private_->stream_decoder, error_callback_);
FLAC__stream_decoder_set_client_data(decoder->private_->stream_decoder, decoder);
/* We always want to see these blocks. Whether or not we pass them up
* through the metadata callback will be determined by flags set in our
* implementation of ..._set_metadata_respond/ignore...()
*/
FLAC__stream_decoder_set_metadata_respond(decoder->private_->stream_decoder, FLAC__METADATA_TYPE_STREAMINFO);
FLAC__stream_decoder_set_metadata_respond(decoder->private_->stream_decoder, FLAC__METADATA_TYPE_SEEKTABLE);
if(FLAC__stream_decoder_init(decoder->private_->stream_decoder) != FLAC__STREAM_DECODER_SEARCH_FOR_METADATA)
return decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
return decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_OK;
}
FLAC__bool FLAC__seekable_stream_decoder_finish(FLAC__SeekableStreamDecoder *decoder)
{
FLAC__bool md5_failed = false;
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return true;
FLAC__ASSERT(0 != decoder->private_->stream_decoder);
/* see the comment in FLAC__seekable_stream_decoder_init() as to why we
* always call MD5Final()
*/
MD5Final(decoder->private_->computed_md5sum, &decoder->private_->md5context);
FLAC__stream_decoder_finish(decoder->private_->stream_decoder);
if(decoder->private_->do_md5_checking) {
if(memcmp(decoder->private_->stored_md5sum, decoder->private_->computed_md5sum, 16))
md5_failed = true;
}
set_defaults_(decoder);
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED;
return !md5_failed;
}
FLAC__bool FLAC__seekable_stream_decoder_set_md5_checking(FLAC__SeekableStreamDecoder *decoder, FLAC__bool value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
decoder->protected_->md5_checking = value;
return true;
}
FLAC__bool FLAC__seekable_stream_decoder_set_read_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderReadCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->read_callback = value;
return true;
}
FLAC__bool FLAC__seekable_stream_decoder_set_seek_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderSeekCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->seek_callback = value;
return true;
}
FLAC__bool FLAC__seekable_stream_decoder_set_tell_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderTellCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->tell_callback = value;
return true;
}
FLAC__bool FLAC__seekable_stream_decoder_set_length_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderLengthCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->length_callback = value;
return true;
}
FLAC__bool FLAC__seekable_stream_decoder_set_eof_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderEofCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->eof_callback = value;
return true;
}
FLAC__bool FLAC__seekable_stream_decoder_set_write_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderWriteCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->write_callback = value;
return true;
}
FLAC__bool FLAC__seekable_stream_decoder_set_metadata_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderMetadataCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->metadata_callback = value;
return true;
}
FLAC__bool FLAC__seekable_stream_decoder_set_error_callback(FLAC__SeekableStreamDecoder *decoder, FLAC__SeekableStreamDecoderErrorCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->error_callback = value;
return true;
}
FLAC__bool FLAC__seekable_stream_decoder_set_client_data(FLAC__SeekableStreamDecoder *decoder, void *value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->client_data = value;
return true;
}
FLAC__bool FLAC__seekable_stream_decoder_set_metadata_respond(FLAC__SeekableStreamDecoder *decoder, FLAC__MetadataType type)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_->stream_decoder);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
if(type == FLAC__METADATA_TYPE_STREAMINFO)
decoder->private_->ignore_stream_info_block = false;
else if(type == FLAC__METADATA_TYPE_SEEKTABLE)
decoder->private_->ignore_seek_table_block = false;
return FLAC__stream_decoder_set_metadata_respond(decoder->private_->stream_decoder, type);
}
FLAC__bool FLAC__seekable_stream_decoder_set_metadata_respond_application(FLAC__SeekableStreamDecoder *decoder, const FLAC__byte id[4])
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_->stream_decoder);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
return FLAC__stream_decoder_set_metadata_respond_application(decoder->private_->stream_decoder, id);
}
FLAC__bool FLAC__seekable_stream_decoder_set_metadata_respond_all(FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_->stream_decoder);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->ignore_stream_info_block = false;
decoder->private_->ignore_seek_table_block = false;
return FLAC__stream_decoder_set_metadata_respond_all(decoder->private_->stream_decoder);
}
FLAC__bool FLAC__seekable_stream_decoder_set_metadata_ignore(FLAC__SeekableStreamDecoder *decoder, FLAC__MetadataType type)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_->stream_decoder);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
if(type == FLAC__METADATA_TYPE_STREAMINFO)
decoder->private_->ignore_stream_info_block = true;
else if(type == FLAC__METADATA_TYPE_SEEKTABLE)
decoder->private_->ignore_seek_table_block = true;
return FLAC__stream_decoder_set_metadata_ignore(decoder->private_->stream_decoder, type);
}
FLAC__bool FLAC__seekable_stream_decoder_set_metadata_ignore_application(FLAC__SeekableStreamDecoder *decoder, const FLAC__byte id[4])
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_->stream_decoder);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
return FLAC__stream_decoder_set_metadata_ignore_application(decoder->private_->stream_decoder, id);
}
FLAC__bool FLAC__seekable_stream_decoder_set_metadata_ignore_all(FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_->stream_decoder);
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->ignore_stream_info_block = true;
decoder->private_->ignore_seek_table_block = true;
return FLAC__stream_decoder_set_metadata_ignore_all(decoder->private_->stream_decoder);
}
FLAC__SeekableStreamDecoderState FLAC__seekable_stream_decoder_get_state(const FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
return decoder->protected_->state;
}
FLAC__SeekableStreamDecoderState FLAC__seekable_stream_decoder_get_stream_decoder_state(const FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__stream_decoder_get_state(decoder->private_->stream_decoder);
}
FLAC__bool FLAC__seekable_stream_decoder_get_md5_checking(const FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
return decoder->protected_->md5_checking;
}
unsigned FLAC__seekable_stream_decoder_get_channels(const FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__stream_decoder_get_channels(decoder->private_->stream_decoder);
}
FLAC__ChannelAssignment FLAC__seekable_stream_decoder_get_channel_assignment(const FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__stream_decoder_get_channel_assignment(decoder->private_->stream_decoder);
}
unsigned FLAC__seekable_stream_decoder_get_bits_per_sample(const FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__stream_decoder_get_bits_per_sample(decoder->private_->stream_decoder);
}
unsigned FLAC__seekable_stream_decoder_get_sample_rate(const FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__stream_decoder_get_sample_rate(decoder->private_->stream_decoder);
}
unsigned FLAC__seekable_stream_decoder_get_blocksize(const FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
return FLAC__stream_decoder_get_blocksize(decoder->private_->stream_decoder);
}
FLAC__bool FLAC__seekable_stream_decoder_flush(FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
decoder->private_->do_md5_checking = false;
if(!FLAC__stream_decoder_flush(decoder->private_->stream_decoder)) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
return false;
}
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_OK;
return true;
}
FLAC__bool FLAC__seekable_stream_decoder_reset(FLAC__SeekableStreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(!FLAC__seekable_stream_decoder_flush(decoder)) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
return false;
}
if(!FLAC__stream_decoder_reset(decoder->private_->stream_decoder)) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
return false;
}
decoder->private_->seek_table = 0;
decoder->private_->do_md5_checking = decoder->protected_->md5_checking;
/* We initialize the MD5Context even though we may never use it. This is
* because md5 checking may be turned on to start and then turned off if a
* seek occurs. So we always init the context here and finalize it in
* FLAC__seekable_stream_decoder_finish() to make sure things are always
* cleaned up properly.
*/
MD5Init(&decoder->private_->md5context);
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_OK;
return true;
}
FLAC__bool FLAC__seekable_stream_decoder_process_single(FLAC__SeekableStreamDecoder *decoder)
{
FLAC__bool ret;
FLAC__ASSERT(0 != decoder);
if(decoder->private_->stream_decoder->protected_->state == FLAC__STREAM_DECODER_END_OF_STREAM)
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM;
if(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
return true;
FLAC__ASSERT(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_OK);
ret = FLAC__stream_decoder_process_single(decoder->private_->stream_decoder);
if(!ret)
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
return ret;
}
FLAC__bool FLAC__seekable_stream_decoder_process_until_end_of_metadata(FLAC__SeekableStreamDecoder *decoder)
{
FLAC__bool ret;
FLAC__ASSERT(0 != decoder);
if(decoder->private_->stream_decoder->protected_->state == FLAC__STREAM_DECODER_END_OF_STREAM)
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM;
if(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
return true;
FLAC__ASSERT(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_OK);
ret = FLAC__stream_decoder_process_until_end_of_metadata(decoder->private_->stream_decoder);
if(!ret)
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
return ret;
}
FLAC__bool FLAC__seekable_stream_decoder_process_until_end_of_stream(FLAC__SeekableStreamDecoder *decoder)
{
FLAC__bool ret;
FLAC__ASSERT(0 != decoder);
if(decoder->private_->stream_decoder->protected_->state == FLAC__STREAM_DECODER_END_OF_STREAM)
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM;
if(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM)
return true;
FLAC__ASSERT(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_OK);
ret = FLAC__stream_decoder_process_until_end_of_stream(decoder->private_->stream_decoder);
if(!ret)
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
return ret;
}
FLAC__bool FLAC__seekable_stream_decoder_seek_absolute(FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 sample)
{
FLAC__uint64 length;
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_OK || decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM);
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEKING;
/* turn off md5 checking if a seek is attempted */
decoder->private_->do_md5_checking = false;
if(!FLAC__stream_decoder_reset(decoder->private_->stream_decoder)) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
return false;
}
/* get the file length */
if(decoder->private_->length_callback(decoder, &length, decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
return false;
}
/* rewind */
if(decoder->private_->seek_callback(decoder, 0, decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
return false;
}
if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder->private_->stream_decoder)) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
return false;
}
if(decoder->private_->stream_info.total_samples > 0 && sample > decoder->private_->stream_info.total_samples) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
return false;
}
return seek_to_absolute_sample_(decoder, length, sample);
}
/***********************************************************************
*
* Private class methods
*
***********************************************************************/
void set_defaults_(FLAC__SeekableStreamDecoder *decoder)
{
decoder->private_->read_callback = 0;
decoder->private_->seek_callback = 0;
decoder->private_->tell_callback = 0;
decoder->private_->length_callback = 0;
decoder->private_->eof_callback = 0;
decoder->private_->write_callback = 0;
decoder->private_->metadata_callback = 0;
decoder->private_->error_callback = 0;
decoder->private_->client_data = 0;
/* WATCHOUT: these should match the default behavior of FLAC__StreamDecoder */
decoder->private_->ignore_stream_info_block = false;
decoder->private_->ignore_seek_table_block = true;
decoder->protected_->md5_checking = false;
}
FLAC__StreamDecoderReadStatus read_callback_(const FLAC__StreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data)
{
FLAC__SeekableStreamDecoder *seekable_stream_decoder = (FLAC__SeekableStreamDecoder *)client_data;
(void)decoder;
if(seekable_stream_decoder->private_->eof_callback(seekable_stream_decoder, seekable_stream_decoder->private_->client_data)) {
seekable_stream_decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM;
return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
}
else if(*bytes > 0) {
unsigned bytes_read = *bytes;
if(seekable_stream_decoder->private_->read_callback(seekable_stream_decoder, buffer, &bytes_read, seekable_stream_decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK) {
seekable_stream_decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_READ_ERROR;
return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
}
if(bytes_read == 0) {
if(seekable_stream_decoder->private_->eof_callback(seekable_stream_decoder, seekable_stream_decoder->private_->client_data)) {
seekable_stream_decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM;
return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
}
else
return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
}
else {
*bytes = bytes_read;
return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
}
}
else
return FLAC__STREAM_DECODER_READ_STATUS_ABORT; /* abort to avoid a deadlock */
}
FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
{
FLAC__SeekableStreamDecoder *seekable_stream_decoder = (FLAC__SeekableStreamDecoder *)client_data;
(void)decoder;
if(seekable_stream_decoder->protected_->state == FLAC__SEEKABLE_STREAM_DECODER_SEEKING) {
FLAC__uint64 this_frame_sample = frame->header.number.sample_number;
FLAC__uint64 next_frame_sample = this_frame_sample + (FLAC__uint64)frame->header.blocksize;
FLAC__uint64 target_sample = seekable_stream_decoder->private_->target_sample;
FLAC__ASSERT(frame->header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
seekable_stream_decoder->private_->last_frame = *frame; /* save the frame */
if(this_frame_sample <= target_sample && target_sample < next_frame_sample) { /* we hit our target frame */
unsigned delta = (unsigned)(target_sample - this_frame_sample);
/* kick out of seek mode */
seekable_stream_decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_OK;
/* shift out the samples before target_sample */
if(delta > 0) {
unsigned channel;
const FLAC__int32 *newbuffer[FLAC__MAX_CHANNELS];
for(channel = 0; channel < frame->header.channels; channel++)
newbuffer[channel] = buffer[channel] + delta;
seekable_stream_decoder->private_->last_frame.header.blocksize -= delta;
seekable_stream_decoder->private_->last_frame.header.number.sample_number += (FLAC__uint64)delta;
/* write the relevant samples */
return seekable_stream_decoder->private_->write_callback(seekable_stream_decoder, &seekable_stream_decoder->private_->last_frame, newbuffer, seekable_stream_decoder->private_->client_data);
}
else {
/* write the relevant samples */
return seekable_stream_decoder->private_->write_callback(seekable_stream_decoder, frame, buffer, seekable_stream_decoder->private_->client_data);
}
}
else {
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
}
else {
if(seekable_stream_decoder->private_->do_md5_checking) {
if(!FLAC__MD5Accumulate(&seekable_stream_decoder->private_->md5context, buffer, frame->header.channels, frame->header.blocksize, (frame->header.bits_per_sample+7) / 8))
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
return seekable_stream_decoder->private_->write_callback(seekable_stream_decoder, frame, buffer, seekable_stream_decoder->private_->client_data);
}
}
void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
{
FLAC__SeekableStreamDecoder *seekable_stream_decoder = (FLAC__SeekableStreamDecoder *)client_data;
(void)decoder;
if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
seekable_stream_decoder->private_->stream_info = metadata->data.stream_info;
/* save the MD5 signature for comparison later */
memcpy(seekable_stream_decoder->private_->stored_md5sum, metadata->data.stream_info.md5sum, 16);
if(0 == memcmp(seekable_stream_decoder->private_->stored_md5sum, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16))
seekable_stream_decoder->private_->do_md5_checking = false;
}
else if(metadata->type == FLAC__METADATA_TYPE_SEEKTABLE) {
seekable_stream_decoder->private_->seek_table = &metadata->data.seek_table;
}
if(seekable_stream_decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_SEEKING) {
FLAC__bool ignore_block = false;
if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO && seekable_stream_decoder->private_->ignore_stream_info_block)
ignore_block = true;
else if(metadata->type == FLAC__METADATA_TYPE_SEEKTABLE && seekable_stream_decoder->private_->ignore_seek_table_block)
ignore_block = true;
if(!ignore_block)
seekable_stream_decoder->private_->metadata_callback(seekable_stream_decoder, metadata, seekable_stream_decoder->private_->client_data);
}
}
void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
{
FLAC__SeekableStreamDecoder *seekable_stream_decoder = (FLAC__SeekableStreamDecoder *)client_data;
(void)decoder;
if(seekable_stream_decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_SEEKING)
seekable_stream_decoder->private_->error_callback(seekable_stream_decoder, status, seekable_stream_decoder->private_->client_data);
}
FLAC__bool seek_to_absolute_sample_(FLAC__SeekableStreamDecoder *decoder, FLAC__uint64 stream_length, FLAC__uint64 target_sample)
{
FLAC__uint64 first_frame_offset, lower_bound, upper_bound;
FLAC__int64 pos = -1, last_pos = -1;
int i, lower_seek_point = -1, upper_seek_point = -1;
unsigned approx_bytes_per_frame;
FLAC__uint64 last_frame_sample = 0xffffffffffffffff;
FLAC__bool needs_seek;
const FLAC__uint64 total_samples = decoder->private_->stream_info.total_samples;
const unsigned min_blocksize = decoder->private_->stream_info.min_blocksize;
const unsigned max_blocksize = decoder->private_->stream_info.max_blocksize;
const unsigned max_framesize = decoder->private_->stream_info.max_framesize;
const unsigned channels = FLAC__seekable_stream_decoder_get_channels(decoder);
const unsigned bps = FLAC__seekable_stream_decoder_get_bits_per_sample(decoder);
/* we are just guessing here, but we want to guess high, not low */
if(max_framesize > 0) {
approx_bytes_per_frame = max_framesize;
}
/*
* Check if it's a known fixed-blocksize stream. Note that though
* the spec doesn't allow zeroes in the STREAMINFO block, we may
* never get a STREAMINFO block when decoding so the value of
* min_blocksize might be zero.
*/
else if(min_blocksize == max_blocksize && min_blocksize > 0) {
/* note there are no () around 'bps/8' to keep precision up since it's an integer calulation */
approx_bytes_per_frame = min_blocksize * channels * bps/8 + 64;
}
else
approx_bytes_per_frame = 4608 * channels * bps/8 + 64;
/*
* The stream position is currently at the first frame plus any read
* ahead data, so first we get the stream position, then subtract
* uncomsumed bytes to get the position of the first frame in the
* stream.
*/
if(decoder->private_->tell_callback(decoder, &first_frame_offset, decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
return false;
}
FLAC__ASSERT(first_frame_offset >= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder->private_->stream_decoder));
first_frame_offset -= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder->private_->stream_decoder);
/*
* First, we set an upper and lower bound on where in the
* stream we will search. For now we assume the worst case
* scenario, which is our best guess at the beginning of
* the first and last frames.
*/
lower_bound = first_frame_offset;
/* calc the upper_bound, beyond which we never want to seek */
if(max_framesize > 0)
upper_bound = stream_length - (max_framesize + 128 + 2); /* 128 for a possible ID3V1 tag, 2 for indexing differences */
else
upper_bound = stream_length - ((channels * bps * FLAC__MAX_BLOCK_SIZE) / 8 + 128 + 2);
/*
* Now we refine the bounds if we have a seektable with
* suitable points. Note that according to the spec they
* must be ordered by ascending sample number.
*/
if(0 != decoder->private_->seek_table) {
/* find the closest seek point <= target_sample, if it exists */
for(i = (int)decoder->private_->seek_table->num_points - 1; i >= 0; i--) {
if(decoder->private_->seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER && decoder->private_->seek_table->points[i].sample_number <= target_sample)
break;
}
if(i >= 0) { /* i.e. we found a suitable seek point... */
lower_bound = first_frame_offset + decoder->private_->seek_table->points[i].stream_offset;
lower_seek_point = i;
}
/* find the closest seek point > target_sample, if it exists */
for(i = 0; i < (int)decoder->private_->seek_table->num_points; i++) {
if(decoder->private_->seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER && decoder->private_->seek_table->points[i].sample_number > target_sample)
break;
}
if(i < (int)decoder->private_->seek_table->num_points) { /* i.e. we found a suitable seek point... */
upper_bound = first_frame_offset + decoder->private_->seek_table->points[i].stream_offset;
upper_seek_point = i;
}
}
/*
* Now guess at where within those bounds our target
* sample will be.
*/
if(lower_seek_point >= 0) {
/* first see if our sample is within a few frames of the lower seekpoint */
if(decoder->private_->seek_table->points[lower_seek_point].sample_number <= target_sample && target_sample < decoder->private_->seek_table->points[lower_seek_point].sample_number + (decoder->private_->seek_table->points[lower_seek_point].frame_samples * 4)) {
pos = (FLAC__int64)lower_bound;
}
else if(upper_seek_point >= 0) {
const FLAC__uint64 target_offset = target_sample - decoder->private_->seek_table->points[lower_seek_point].sample_number;
const FLAC__uint64 range_samples = decoder->private_->seek_table->points[upper_seek_point].sample_number - decoder->private_->seek_table->points[lower_seek_point].sample_number;
const FLAC__uint64 range_bytes = upper_bound - lower_bound;
#if defined _MSC_VER || defined __MINGW32__
/* with VC++ you have to spoon feed it the casting */
pos = (FLAC__int64)lower_bound + (FLAC__int64)((double)(FLAC__int64)target_offset / (double)(FLAC__int64)range_samples * (double)(FLAC__int64)(range_bytes-1)) - approx_bytes_per_frame;
#else
pos = (FLAC__int64)lower_bound + (FLAC__int64)((double)target_offset / (double)range_samples * (double)(range_bytes-1)) - approx_bytes_per_frame;
#endif
}
}
/*
* If there's no seek table, we need to use the metadata (if we
* have it) and the filelength to estimate the position of the
* frame with the correct sample.
*/
if(pos < 0 && total_samples > 0) {
#if defined _MSC_VER || defined __MINGW32__
/* with VC++ you have to spoon feed it the casting */
pos = (FLAC__int64)first_frame_offset + (FLAC__int64)((double)(FLAC__int64)target_sample / (double)(FLAC__int64)total_samples * (double)(FLAC__int64)(stream_length-first_frame_offset-1)) - approx_bytes_per_frame;
#else
pos = (FLAC__int64)first_frame_offset + (FLAC__int64)((double)target_sample / (double)total_samples * (double)(stream_length-first_frame_offset-1)) - approx_bytes_per_frame;
#endif
}
/*
* If there's no seek table and total_samples is unknown, we
* don't even bother trying to figure out a target, we just use
* our current position.
*/
if(pos < 0) {
FLAC__uint64 upos;
if(decoder->private_->tell_callback(decoder, &upos, decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
return false;
}
pos = (FLAC__int32)upos;
needs_seek = false;
}
else
needs_seek = true;
/* clip the position to the bounds, lower bound takes precedence */
if(pos >= (FLAC__int64)upper_bound) {
pos = (FLAC__int64)upper_bound-1;
needs_seek = true;
}
if(pos < (FLAC__int64)lower_bound) {
pos = (FLAC__int64)lower_bound;
needs_seek = true;
}
decoder->private_->target_sample = target_sample;
while(1) {
if(needs_seek) {
if(decoder->private_->seek_callback(decoder, (FLAC__uint64)pos, decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
return false;
}
if(!FLAC__stream_decoder_flush(decoder->private_->stream_decoder)) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR;
return false;
}
}
if(!FLAC__stream_decoder_process_single(decoder->private_->stream_decoder)) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
return false;
}
/* our write callback will change the state when it gets to the target frame */
if(decoder->protected_->state != FLAC__SEEKABLE_STREAM_DECODER_SEEKING) {
break;
}
else { /* we need to narrow the search */
FLAC__uint64 this_frame_sample = decoder->private_->last_frame.header.number.sample_number;
FLAC__ASSERT(decoder->private_->last_frame.header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER);
if(this_frame_sample == last_frame_sample) {
/* our last move backwards wasn't big enough */
pos -= (last_pos - pos);
needs_seek = true;
}
else {
if(target_sample < this_frame_sample) {
last_pos = pos;
approx_bytes_per_frame = decoder->private_->last_frame.header.blocksize * channels * bps/8 + 64;
pos -= approx_bytes_per_frame;
needs_seek = true;
}
else { /* target_sample >= this_frame_sample + this frame's blocksize */
FLAC__uint64 upos;
if(decoder->private_->tell_callback(decoder, &upos, decoder->private_->client_data) != FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK) {
decoder->protected_->state = FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR;
return false;
}
last_pos = pos;
pos = (FLAC__int32)upos;
pos -= FLAC__stream_decoder_get_input_bytes_unconsumed(decoder->private_->stream_decoder);
needs_seek = false;
}
}
if(pos < (FLAC__int64)lower_bound)
pos = (FLAC__int64)lower_bound;
last_frame_sample = this_frame_sample;
}
}
return true;
}

597
src/libOggFLAC/stream_decoder.c Normal file
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@ -0,0 +1,597 @@
/* libOggFLAC - Free Lossless Audio Codec + Ogg library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <stdlib.h>
#include "FLAC/assert.h"
#include "protected/stream_decoder.h"
/***********************************************************************
*
* Private class method prototypes
*
***********************************************************************/
static void set_defaults_(FLAC__StreamDecoder *decoder);
/***********************************************************************
*
* Private class data
*
***********************************************************************/
typedef struct FLAC__StreamDecoderPrivate {
FLAC__StreamDecoderReadCallback read_callback;
FLAC__StreamDecoderWriteCallback write_callback;
FLAC__StreamDecoderMetadataCallback metadata_callback;
FLAC__StreamDecoderErrorCallback error_callback;
void *client_data;
} FLAC__StreamDecoderPrivate;
/***********************************************************************
*
* Public static class data
*
***********************************************************************/
const char * const FLAC__StreamDecoderStateString[] = {
"OggFLAC__STREAM_DECODER_OK",
"OggFLAC__STREAM_DECODER_FLAC_STREAM_DECODER_ERROR",
"OggFLAC__STREAM_DECODER_INVALID_CALLBACK",
"OggFLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR",
"OggFLAC__STREAM_DECODER_ALREADY_INITIALIZED",
"OggFLAC__STREAM_DECODER_UNINITIALIZED"
};
/***********************************************************************
*
* Class constructor/destructor
*
***********************************************************************/
FLAC__StreamDecoder *FLAC__stream_decoder_new()
{
FLAC__StreamDecoder *decoder;
unsigned i;
FLAC__ASSERT(sizeof(int) >= 4); /* we want to die right away if this is not true */
decoder = (FLAC__StreamDecoder*)malloc(sizeof(FLAC__StreamDecoder));
if(decoder == 0) {
return 0;
}
memset(decoder, 0, sizeof(FLAC__StreamDecoder));
decoder->protected_ = (FLAC__StreamDecoderProtected*)malloc(sizeof(FLAC__StreamDecoderProtected));
if(decoder->protected_ == 0) {
free(decoder);
return 0;
}
memset(decoder->protected_, 0, sizeof(FLAC__StreamDecoderProtected));
decoder->private_ = (FLAC__StreamDecoderPrivate*)malloc(sizeof(FLAC__StreamDecoderPrivate));
if(decoder->private_ == 0) {
free(decoder->protected_);
free(decoder);
return 0;
}
memset(decoder->private_, 0, sizeof(FLAC__StreamDecoderPrivate));
decoder->private_->input = FLAC__bitbuffer_new();
if(decoder->private_->input == 0) {
free(decoder->private_);
free(decoder->protected_);
free(decoder);
return 0;
}
decoder->private_->metadata_filter_ids_capacity = 16;
if(0 == (decoder->private_->metadata_filter_ids = malloc((FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8) * decoder->private_->metadata_filter_ids_capacity))) {
FLAC__bitbuffer_delete(decoder->private_->input);
free(decoder->private_);
free(decoder->protected_);
free(decoder);
return 0;
}
for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
decoder->private_->output[i] = 0;
decoder->private_->residual[i] = 0;
}
decoder->private_->output_capacity = 0;
decoder->private_->output_channels = 0;
decoder->private_->has_seek_table = false;
set_defaults_(decoder);
decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;
return decoder;
}
void FLAC__stream_decoder_delete(FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->private_->input);
FLAC__stream_decoder_finish(decoder);
if(0 != decoder->private_->metadata_filter_ids)
free(decoder->private_->metadata_filter_ids);
FLAC__bitbuffer_delete(decoder->private_->input);
free(decoder->private_);
free(decoder->protected_);
free(decoder);
}
/***********************************************************************
*
* Public class methods
*
***********************************************************************/
FLAC__StreamDecoderState FLAC__stream_decoder_init(FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
return decoder->protected_->state = FLAC__STREAM_DECODER_ALREADY_INITIALIZED;
if(0 == decoder->private_->read_callback || 0 == decoder->private_->write_callback || 0 == decoder->private_->metadata_callback || 0 == decoder->private_->error_callback)
return decoder->protected_->state = FLAC__STREAM_DECODER_INVALID_CALLBACK;
if(!FLAC__bitbuffer_init(decoder->private_->input))
return decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
decoder->private_->last_frame_number = 0;
decoder->private_->samples_decoded = 0;
decoder->private_->has_stream_info = false;
decoder->private_->cached = false;
/*
* get the CPU info and set the function pointers
*/
FLAC__cpu_info(&decoder->private_->cpuinfo);
/* first default to the non-asm routines */
decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal;
decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal;
/* now override with asm where appropriate */
#ifndef FLAC__NO_ASM
if(decoder->private_->cpuinfo.use_asm) {
#ifdef FLAC__CPU_IA32
FLAC__ASSERT(decoder->private_->cpuinfo.type == FLAC__CPUINFO_TYPE_IA32);
#ifdef FLAC__HAS_NASM
if(decoder->private_->cpuinfo.data.ia32.mmx) {
decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal_asm_ia32;
decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ia32_mmx;
}
else {
decoder->private_->local_lpc_restore_signal = FLAC__lpc_restore_signal_asm_ia32;
decoder->private_->local_lpc_restore_signal_16bit = FLAC__lpc_restore_signal_asm_ia32;
}
#endif
#endif
}
#endif
if(!FLAC__stream_decoder_reset(decoder))
return decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return decoder->protected_->state;
}
void FLAC__stream_decoder_finish(FLAC__StreamDecoder *decoder)
{
unsigned i;
FLAC__ASSERT(0 != decoder);
if(decoder->protected_->state == FLAC__STREAM_DECODER_UNINITIALIZED)
return;
if(decoder->private_->has_seek_table) {
FLAC__ASSERT(0 != decoder->private_->seek_table.data.seek_table.points);
free(decoder->private_->seek_table.data.seek_table.points);
decoder->private_->seek_table.data.seek_table.points = 0;
decoder->private_->has_seek_table = false;
}
FLAC__bitbuffer_free(decoder->private_->input);
for(i = 0; i < FLAC__MAX_CHANNELS; i++) {
/* WATCHOUT: FLAC__lpc_restore_signal_asm_ia32_mmx() requires that the output arrays have a buffer of up to 3 zeroes in front (at negative indices) for alignment purposes; we use 4 to keep the data well-aligned. */
if(0 != decoder->private_->output[i]) {
free(decoder->private_->output[i]-4);
decoder->private_->output[i] = 0;
}
if(0 != decoder->private_->residual[i]) {
free(decoder->private_->residual[i]);
decoder->private_->residual[i] = 0;
}
}
decoder->private_->output_capacity = 0;
decoder->private_->output_channels = 0;
set_defaults_(decoder);
decoder->protected_->state = FLAC__STREAM_DECODER_UNINITIALIZED;
}
FLAC__bool FLAC__stream_decoder_set_read_callback(FLAC__StreamDecoder *decoder, FLAC__StreamDecoderReadCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->read_callback = value;
return true;
}
FLAC__bool FLAC__stream_decoder_set_write_callback(FLAC__StreamDecoder *decoder, FLAC__StreamDecoderWriteCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->write_callback = value;
return true;
}
FLAC__bool FLAC__stream_decoder_set_metadata_callback(FLAC__StreamDecoder *decoder, FLAC__StreamDecoderMetadataCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->metadata_callback = value;
return true;
}
FLAC__bool FLAC__stream_decoder_set_error_callback(FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorCallback value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->error_callback = value;
return true;
}
FLAC__bool FLAC__stream_decoder_set_client_data(FLAC__StreamDecoder *decoder, void *value)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->client_data = value;
return true;
}
FLAC__bool FLAC__stream_decoder_set_metadata_respond(FLAC__StreamDecoder *decoder, FLAC__MetadataType type)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(type <= FLAC__METADATA_TYPE_VORBIS_COMMENT);
if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->metadata_filter[type] = true;
if(type == FLAC__METADATA_TYPE_APPLICATION)
decoder->private_->metadata_filter_ids_count = 0;
return true;
}
FLAC__bool FLAC__stream_decoder_set_metadata_respond_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != id);
if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
return false;
if(decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
return true;
FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
if(0 == (decoder->private_->metadata_filter_ids = realloc(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity * 2)))
return decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
decoder->private_->metadata_filter_ids_capacity *= 2;
}
memcpy(decoder->private_->metadata_filter_ids + decoder->private_->metadata_filter_ids_count * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8));
decoder->private_->metadata_filter_ids_count++;
return true;
}
FLAC__bool FLAC__stream_decoder_set_metadata_respond_all(FLAC__StreamDecoder *decoder)
{
unsigned i;
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
return false;
for(i = 0; i < sizeof(decoder->private_->metadata_filter) / sizeof(decoder->private_->metadata_filter[0]); i++)
decoder->private_->metadata_filter[i] = true;
decoder->private_->metadata_filter_ids_count = 0;
return true;
}
FLAC__bool FLAC__stream_decoder_set_metadata_ignore(FLAC__StreamDecoder *decoder, FLAC__MetadataType type)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(type <= FLAC__METADATA_TYPE_VORBIS_COMMENT);
if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
return false;
decoder->private_->metadata_filter[type] = false;
if(type == FLAC__METADATA_TYPE_APPLICATION)
decoder->private_->metadata_filter_ids_count = 0;
return true;
}
FLAC__bool FLAC__stream_decoder_set_metadata_ignore_application(FLAC__StreamDecoder *decoder, const FLAC__byte id[4])
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
FLAC__ASSERT(0 != id);
if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
return false;
if(!decoder->private_->metadata_filter[FLAC__METADATA_TYPE_APPLICATION])
return true;
FLAC__ASSERT(0 != decoder->private_->metadata_filter_ids);
if(decoder->private_->metadata_filter_ids_count == decoder->private_->metadata_filter_ids_capacity) {
if(0 == (decoder->private_->metadata_filter_ids = realloc(decoder->private_->metadata_filter_ids, decoder->private_->metadata_filter_ids_capacity * 2)))
return decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
decoder->private_->metadata_filter_ids_capacity *= 2;
}
memcpy(decoder->private_->metadata_filter_ids + decoder->private_->metadata_filter_ids_count * (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8), id, (FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8));
decoder->private_->metadata_filter_ids_count++;
return true;
}
FLAC__bool FLAC__stream_decoder_set_metadata_ignore_all(FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(decoder->protected_->state != FLAC__STREAM_DECODER_UNINITIALIZED)
return false;
memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
decoder->private_->metadata_filter_ids_count = 0;
return true;
}
FLAC__StreamDecoderState FLAC__stream_decoder_get_state(const FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
return decoder->protected_->state;
}
unsigned FLAC__stream_decoder_get_channels(const FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
return decoder->protected_->channels;
}
FLAC__ChannelAssignment FLAC__stream_decoder_get_channel_assignment(const FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
return decoder->protected_->channel_assignment;
}
unsigned FLAC__stream_decoder_get_bits_per_sample(const FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
return decoder->protected_->bits_per_sample;
}
unsigned FLAC__stream_decoder_get_sample_rate(const FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
return decoder->protected_->sample_rate;
}
unsigned FLAC__stream_decoder_get_blocksize(const FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
return decoder->protected_->blocksize;
}
FLAC__bool FLAC__stream_decoder_flush(FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(!FLAC__bitbuffer_clear(decoder->private_->input)) {
decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}
decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC;
return true;
}
FLAC__bool FLAC__stream_decoder_reset(FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->private_);
FLAC__ASSERT(0 != decoder->protected_);
if(!FLAC__stream_decoder_flush(decoder)) {
decoder->protected_->state = FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR;
return false;
}
decoder->protected_->state = FLAC__STREAM_DECODER_SEARCH_FOR_METADATA;
decoder->private_->samples_decoded = 0;
return true;
}
FLAC__bool FLAC__stream_decoder_process_single(FLAC__StreamDecoder *decoder)
{
FLAC__bool got_a_frame;
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
while(1) {
switch(decoder->protected_->state) {
case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
if(!find_metadata_(decoder))
return false; /* above function sets the status for us */
break;
case FLAC__STREAM_DECODER_READ_METADATA:
if(!read_metadata_(decoder))
return false; /* above function sets the status for us */
else
return true;
case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
if(!frame_sync_(decoder))
return true; /* above function sets the status for us */
break;
case FLAC__STREAM_DECODER_READ_FRAME:
if(!read_frame_(decoder, &got_a_frame))
return false; /* above function sets the status for us */
if(got_a_frame)
return true; /* above function sets the status for us */
break;
case FLAC__STREAM_DECODER_END_OF_STREAM:
case FLAC__STREAM_DECODER_ABORTED:
return true;
default:
FLAC__ASSERT(0);
return false;
}
}
}
FLAC__bool FLAC__stream_decoder_process_until_end_of_metadata(FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
while(1) {
switch(decoder->protected_->state) {
case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
if(!find_metadata_(decoder))
return false; /* above function sets the status for us */
break;
case FLAC__STREAM_DECODER_READ_METADATA:
if(!read_metadata_(decoder))
return false; /* above function sets the status for us */
break;
case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
case FLAC__STREAM_DECODER_READ_FRAME:
case FLAC__STREAM_DECODER_END_OF_STREAM:
case FLAC__STREAM_DECODER_ABORTED:
return true;
default:
FLAC__ASSERT(0);
return false;
}
}
}
FLAC__bool FLAC__stream_decoder_process_until_end_of_stream(FLAC__StreamDecoder *decoder)
{
FLAC__bool dummy;
FLAC__ASSERT(0 != decoder);
FLAC__ASSERT(0 != decoder->protected_);
while(1) {
switch(decoder->protected_->state) {
case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA:
if(!find_metadata_(decoder))
return false; /* above function sets the status for us */
break;
case FLAC__STREAM_DECODER_READ_METADATA:
if(!read_metadata_(decoder))
return false; /* above function sets the status for us */
break;
case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC:
if(!frame_sync_(decoder))
return true; /* above function sets the status for us */
break;
case FLAC__STREAM_DECODER_READ_FRAME:
if(!read_frame_(decoder, &dummy))
return false; /* above function sets the status for us */
break;
case FLAC__STREAM_DECODER_END_OF_STREAM:
case FLAC__STREAM_DECODER_ABORTED:
return true;
default:
FLAC__ASSERT(0);
return false;
}
}
}
/***********************************************************************
*
* Protected class methods
*
***********************************************************************/
unsigned FLAC__stream_decoder_get_input_bytes_unconsumed(const FLAC__StreamDecoder *decoder)
{
FLAC__ASSERT(0 != decoder);
return FLAC__bitbuffer_get_input_bytes_unconsumed(decoder->private_->input);
}
/***********************************************************************
*
* Private class methods
*
***********************************************************************/
void set_defaults_(FLAC__StreamDecoder *decoder)
{
decoder->private_->read_callback = 0;
decoder->private_->write_callback = 0;
decoder->private_->metadata_callback = 0;
decoder->private_->error_callback = 0;
decoder->private_->client_data = 0;
memset(decoder->private_->metadata_filter, 0, sizeof(decoder->private_->metadata_filter));
decoder->private_->metadata_filter[FLAC__METADATA_TYPE_STREAMINFO] = true;
decoder->private_->metadata_filter_ids_count = 0;
}

641
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@ -0,0 +1,641 @@
/* libOggFLAC - Free Lossless Audio Codec + Ogg library
* Copyright (C) 2002 Josh Coalson
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <stdlib.h> /* for malloc() */
#include <string.h> /* for memcpy() */
#include "ogg/ogg.h"
#include "FLAC/assert.h"
#include "OggFLAC/stream_decoder.h"
#include "protected/stream_encoder.h"
/***********************************************************************
*
* Private class method prototypes
*
***********************************************************************/
static void set_defaults_(FLAC__StreamEncoder *encoder);
static FLAC__StreamEncoderWriteStatus write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data);
static void metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data);
/***********************************************************************
*
* Private class data
*
***********************************************************************/
typedef struct FLAC__StreamEncoderPrivate {
OggFLAC__StreamEncoderWriteCallback write_callback;
void *client_data;
FLAC__StreamEncoder *stream_encoder;
/* internal vars (all the above are class settings) */
FLAC__bool is_first_packet;
FLAC__uint64 samples_written;
struct {
ogg_stream_state stream_state;
ogg_page page;
} ogg;
} FLAC__StreamEncoderPrivate;
/***********************************************************************
*
* Public static class data
*
***********************************************************************/
const char * const OggFLAC__StreamEncoderStateString[] = {
"OggFLAC__STREAM_ENCODER_OK",
"OggFLAC__STREAM_ENCODER_FLAC_STREAM_ENCODER_ERROR",
"OggFLAC__STREAM_ENCODER_INVALID_CALLBACK",
"OggFLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR",
"OggFLAC__STREAM_ENCODER_ALREADY_INITIALIZED",
"OggFLAC__STREAM_ENCODER_UNINITIALIZED"
};
/***********************************************************************
*
* Class constructor/destructor
*
*/
OggFLAC__StreamEncoder *OggFLAC__stream_encoder_new()
{
OggFLAC__StreamEncoder *encoder;
encoder = (OggFLAC__StreamEncoder*)malloc(sizeof(OggFLAC__StreamEncoder));
if(encoder == 0) {
return 0;
}
memset(encoder, 0, sizeof(OggFLAC__StreamEncoder));
encoder->protected_ = (OggFLAC__StreamEncoderProtected*)malloc(sizeof(OggFLAC__StreamEncoderProtected));
if(encoder->protected_ == 0) {
free(encoder);
return 0;
}
memset(encoder->protected_, 0, sizeof(OggFLAC__StreamEncoderProtected));
encoder->private_ = (OggFLAC__StreamEncoderPrivate*)malloc(sizeof(OggFLAC__StreamEncoderPrivate));
if(encoder->private_ == 0) {
free(encoder->protected_);
free(encoder);
return 0;
}
memset(encoder->private_, 0, sizeof(OggFLAC__StreamEncoderPrivate));
encoder->private_->stream_encoder = FLAC__stream_encoder_new();
if(0 == encoder->private_->stream_encoder) {
free(encoder->private_);
free(encoder->protected_);
free(encoder);
return 0;
}
set_defaults_(encoder);
encoder->protected_->state = OggFLAC__STREAM_ENCODER_UNINITIALIZED;
return encoder;
}
void OggFLAC__stream_encoder_delete(OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
(void)OggFLAC__stream_encoder_finish(encoder);
FLAC__stream_encoder_delete(encoder->private_->stream_encoder);
free(encoder->private_);
free(encoder->protected_);
free(encoder);
}
/***********************************************************************
*
* Public class methods
*
***********************************************************************/
OggFLAC__StreamEncoderState OggFLAC__stream_encoder_init(FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
return encoder->protected_->state = OggFLAC__STREAM_ENCODER_ALREADY_INITIALIZED;
if(0 == encoder->private_->write_callback)
return encoder->protected_->state = OggFLAC__STREAM_ENCODER_INVALID_CALLBACK;
FLAC__stream_encoder_set_write_callback(encoder->private_->stream_encoder, write_callback_);
FLAC__stream_encoder_set_metadata_callback(encoder->private_->stream_encoder, metadata_callback_);
FLAC__stream_encoder_set_client_data(encoder->private_->stream_encoder, encoder);
if(FLAC__stream_encoder_init(encoder->private_->stream_encoder) != FLAC__STREAM_ENCODER_OK)
return encoder->protected_->state = OggFLAC__STREAM_ENCODER_FLAC_STREAM_ENCODER_ERROR;
encoder->private_->is_first_packet = true;
encoder->private_->samples_written = 0;
return encoder->protected_->state = OggFLAC__STREAM_ENCODER_OK;
}
void OggFLAC__stream_encoder_finish(OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state == OggFLAC__STREAM_ENCODER_UNINITIALIZED)
return;
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
FLAC__stream_encoder_finish(encoder->private_->stream_encoder);
set_defaults_(encoder);
encoder->protected_->state = OggFLAC__STREAM_ENCODER_UNINITIALIZED;
}
FLAC__bool FLAC__stream_encoder_set_verify(FLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_verify(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_streamable_subset(OggFLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_streamable_subset(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_do_mid_side_stereo(OggFLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_do_mid_side_stereo(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_loose_mid_side_stereo(OggFLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_loose_mid_side_stereo(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_channels(OggFLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_channels(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_bits_per_sample(OggFLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_bits_per_sample(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_sample_rate(OggFLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_sample_rate(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_blocksize(OggFLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_blocksize(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_max_lpc_order(OggFLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_max_lpc_order(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_qlp_coeff_precision(OggFLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_qlp_coeff_precision(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_do_qlp_coeff_prec_search(OggFLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_do_qlp_coeff_prec_search(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_do_escape_coding(OggFLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_do_escape_coding(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_do_exhaustive_model_search(OggFLAC__StreamEncoder *encoder, FLAC__bool value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_do_exhaustive_model_search(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_min_residual_partition_order(OggFLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_min_residual_partition_order(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_max_residual_partition_order(OggFLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_max_residual_partition_order(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_rice_parameter_search_dist(OggFLAC__StreamEncoder *encoder, unsigned value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_rice_parameter_search_dist(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_total_samples_estimate(OggFLAC__StreamEncoder *encoder, FLAC__uint64 value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_total_samples_estimate(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_metadata(OggFLAC__StreamEncoder *encoder, FLAC__StreamMetadata **metadata, unsigned num_blocks)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != encoder->private_->stream_encoder);
if(encoder->protected_->state != OggFLAC__SEEKABLE_STREAM_ENCODER_UNINITIALIZED)
return false;
return FLAC__stream_encoder_set_metadata(encoder->private_->stream_encoder, value);
}
FLAC__bool OggFLAC__stream_encoder_set_write_callback(OggFLAC__StreamEncoder *encoder, OggFLAC__StreamEncoderWriteCallback value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
FLAC__ASSERT(0 != value);
if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->private_->write_callback = value;
return true;
}
FLAC__bool OggFLAC__stream_encoder_set_client_data(OggFLAC__StreamEncoder *encoder, void *value)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
if(encoder->protected_->state != OggFLAC__STREAM_ENCODER_UNINITIALIZED)
return false;
encoder->private_->client_data = value;
return true;
}
OggFLAC__StreamEncoderState OggFLAC__stream_encoder_get_state(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return encoder->protected_->state;
}
FLAC__StreamEncoderState OggFLAC__stream_encoder_get_FLAC_stream_encoder_state(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_state(encoder->private_->encoder);
}
FLAC__StreamDecoderState OggFLAC__stream_encoder_get_verify_decoder_state(const OggFLAC__StreamEncoder *encoder);
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_verify_decoder_state(encoder->private_->encoder);
}
FLAC__bool OggFLAC__stream_encoder_get_verify(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_verify(encoder->private_->encoder);
}
FLAC__bool OggFLAC__stream_encoder_get_streamable_subset(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_streamable_subset(encoder->private_->encoder);
}
FLAC__bool OggFLAC__stream_encoder_get_do_mid_side_stereo(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_do_mid_side_stereo(encoder->private_->encoder);
}
FLAC__bool OggFLAC__stream_encoder_get_loose_mid_side_stereo(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_loose_mid_side_stereo(encoder->private_->encoder);
}
unsigned OggFLAC__stream_encoder_get_channels(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_channels(encoder->private_->encoder);
}
unsigned OggFLAC__stream_encoder_get_bits_per_sample(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_bits_per_sample(encoder->private_->encoder);
}
unsigned OggFLAC__stream_encoder_get_sample_rate(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_sample_rate(encoder->private_->encoder);
}
unsigned OggFLAC__stream_encoder_get_blocksize(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_blocksize(encoder->private_->encoder);
}
unsigned OggFLAC__stream_encoder_get_max_lpc_order(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_max_lpc_order(encoder->private_->encoder);
}
unsigned OggFLAC__stream_encoder_get_qlp_coeff_precision(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_qlp_coeff_precision(encoder->private_->encoder);
}
FLAC__bool OggFLAC__stream_encoder_get_do_qlp_coeff_prec_search(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_do_qlp_coeff_prec_search(encoder->private_->encoder);
}
FLAC__bool OggFLAC__stream_encoder_get_do_escape_coding(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_do_escape_coding(encoder->private_->encoder);
}
FLAC__bool OggFLAC__stream_encoder_get_do_exhaustive_model_search(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_do_exhaustive_model_search(encoder->private_->encoder);
}
unsigned OggFLAC__stream_encoder_get_min_residual_partition_order(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_min_residual_partition_order(encoder->private_->encoder);
}
unsigned OggFLAC__stream_encoder_get_max_residual_partition_order(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_max_residual_partition_order(encoder->private_->encoder);
}
unsigned OggFLAC__stream_encoder_get_rice_parameter_search_dist(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_rice_parameter_search_dist(encoder->private_->encoder);
}
FLAC__uint64 OggFLAC__stream_encoder_get_total_samples_estimate(const OggFLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_get_total_samples_estimate(encoder->private_->encoder);
}
FLAC__bool FLAC__stream_encoder_process(FLAC__StreamEncoder *encoder, const FLAC__int32 * const buffer[], unsigned samples)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_process(encoder->private_->encoder, buffer, samples);
}
FLAC__bool FLAC__stream_encoder_process_interleaved(FLAC__StreamEncoder *encoder, const FLAC__int32 buffer[], unsigned samples)
{
FLAC__ASSERT(0 != encoder);
FLAC__ASSERT(0 != encoder->private_);
FLAC__ASSERT(0 != encoder->protected_);
return FLAC__stream_encoder_process_interleaved(encoder->private_->encoder, buffer, samples);
}
/***********************************************************************
*
* Private class methods
*
***********************************************************************/
void set_defaults_(FLAC__StreamEncoder *encoder)
{
FLAC__ASSERT(0 != encoder);
encoder->private_->write_callback = 0;
encoder->private_->client_data = 0;
}
FLAC__StreamEncoderWriteStatus write_callback_(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], unsigned bytes, unsigned samples, unsigned current_frame, void *client_data)
{
ogg_packet packet;
encoder->private_->samples_written += samples;
memset(&packet, 0, sizeof(packet));
packet.packet = (unsigned char *)buffer;
packet.granulepos = encoder->private_->samples_written - 1;
/*@@@ WATCHOUT:
* This depends on the behavior of FLAC__StreamEncoder that 'samples'
* will be 0 for metadata writes.
*/
packet.packetno = (samples == 0? -1 : (int)current_frame);
packet.bytes = bytes;
if(encoder->private_->is_first_packet) {
packet.b_o_s = 1;
encoder->private_->is_first_packet = false;
}
if(encoder->private_->total_samples_to_encode > 0 && encoder->private_->total_samples_to_encode == encoder->private_->samples_written)
packet.e_o_s = 1;
ogg_stream_packetin(&encoder->private_->ogg.stream_state, &packet);
while(ogg_stream_pageout(&encoder->private_->ogg.stream_state, &encoder->private_->ogg.page) != 0) {
if(encoder->private_->write_callback(encoder, encoder->private_->ogg.page.header, encoder->private_->ogg.page.header_len) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
if(encoder->private_->write_callback(encoder, encoder->private_->ogg.page.body, encoder->private_->ogg.page.body_len) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
}
return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
}
void metadata_callback_(const FLAC__StreamEncoder *encoder, const FLAC__StreamMetadata *metadata, void *client_data)
{
/*
* We don't try to go back an update metadata blocks by mucking
* around inside the Ogg layer. Maybe someday we will care to
* and an OggFLAC__SeekableStreamEncoder and OggFLAC__FileEncoder
* will be possible but it may just never be useful.
*/
(void)encoder, (void)metadata, (void)client_data;
}