/* libFLAC++ - Free Lossless Audio Codec library
* Copyright (C) 2002-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Xiph.org Foundation nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "FLAC++/decoder.h"
#include "FLAC/assert.h"
#ifdef _MSC_VER
// warning C4800: 'int' : forcing to bool 'true' or 'false' (performance warning)
#pragma warning ( disable : 4800 )
#endif
namespace FLAC {
namespace Decoder {
// ------------------------------------------------------------
//
// Stream
//
// ------------------------------------------------------------
Stream::Stream():
decoder_(::FLAC__stream_decoder_new())
{ }
Stream::~Stream()
{
if(0 != decoder_) {
(void)::FLAC__stream_decoder_finish(decoder_);
::FLAC__stream_decoder_delete(decoder_);
}
}
bool Stream::is_valid() const
{
return 0 != decoder_;
}
bool Stream::set_ogg_serial_number(long value)
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_set_ogg_serial_number(decoder_, value);
}
bool Stream::set_md5_checking(bool value)
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_set_md5_checking(decoder_, value);
}
bool Stream::set_metadata_respond(::FLAC__MetadataType type)
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_set_metadata_respond(decoder_, type);
}
bool Stream::set_metadata_respond_application(const FLAC__byte id[4])
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_set_metadata_respond_application(decoder_, id);
}
bool Stream::set_metadata_respond_all()
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_set_metadata_respond_all(decoder_);
}
bool Stream::set_metadata_ignore(::FLAC__MetadataType type)
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_set_metadata_ignore(decoder_, type);
}
bool Stream::set_metadata_ignore_application(const FLAC__byte id[4])
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_set_metadata_ignore_application(decoder_, id);
}
bool Stream::set_metadata_ignore_all()
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_set_metadata_ignore_all(decoder_);
}
Stream::State Stream::get_state() const
{
FLAC__ASSERT(is_valid());
return State(::FLAC__stream_decoder_get_state(decoder_));
}
bool Stream::get_md5_checking() const
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_get_md5_checking(decoder_);
}
FLAC__uint64 Stream::get_total_samples() const
{
FLAC__ASSERT(is_valid());
return ::FLAC__stream_decoder_get_total_samples(decoder_);
}
unsigned Stream::get_channels() const
{
FLAC__ASSERT(is_valid());
return ::FLAC__stream_decoder_get_channels(decoder_);
}
::FLAC__ChannelAssignment Stream::get_channel_assignment() const
{
FLAC__ASSERT(is_valid());
return ::FLAC__stream_decoder_get_channel_assignment(decoder_);
}
unsigned Stream::get_bits_per_sample() const
{
FLAC__ASSERT(is_valid());
return ::FLAC__stream_decoder_get_bits_per_sample(decoder_);
}
unsigned Stream::get_sample_rate() const
{
FLAC__ASSERT(is_valid());
return ::FLAC__stream_decoder_get_sample_rate(decoder_);
}
unsigned Stream::get_blocksize() const
{
FLAC__ASSERT(is_valid());
return ::FLAC__stream_decoder_get_blocksize(decoder_);
}
bool Stream::get_decode_position(FLAC__uint64 *position) const
{
FLAC__ASSERT(is_valid());
return ::FLAC__stream_decoder_get_decode_position(decoder_, position);
}
::FLAC__StreamDecoderInitStatus Stream::init()
{
FLAC__ASSERT(is_valid());
return ::FLAC__stream_decoder_init_stream(decoder_, read_callback_, seek_callback_, tell_callback_, length_callback_, eof_callback_, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this);
}
::FLAC__StreamDecoderInitStatus Stream::init_ogg()
{
FLAC__ASSERT(is_valid());
return ::FLAC__stream_decoder_init_ogg_stream(decoder_, read_callback_, seek_callback_, tell_callback_, length_callback_, eof_callback_, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this);
}
bool Stream::finish()
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_finish(decoder_);
}
bool Stream::flush()
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_flush(decoder_);
}
bool Stream::reset()
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_reset(decoder_);
}
bool Stream::process_single()
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_process_single(decoder_);
}
bool Stream::process_until_end_of_metadata()
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_process_until_end_of_metadata(decoder_);
}
bool Stream::process_until_end_of_stream()
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_process_until_end_of_stream(decoder_);
}
bool Stream::skip_single_frame()
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_skip_single_frame(decoder_);
}
bool Stream::seek_absolute(FLAC__uint64 sample)
{
FLAC__ASSERT(is_valid());
return (bool)::FLAC__stream_decoder_seek_absolute(decoder_, sample);
}
::FLAC__StreamDecoderSeekStatus Stream::seek_callback(FLAC__uint64 absolute_byte_offset)
{
(void)absolute_byte_offset;
return ::FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
}
::FLAC__StreamDecoderTellStatus Stream::tell_callback(FLAC__uint64 *absolute_byte_offset)
{
(void)absolute_byte_offset;
return ::FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
}
::FLAC__StreamDecoderLengthStatus Stream::length_callback(FLAC__uint64 *stream_length)
{
(void)stream_length;
return ::FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED;
}
bool Stream::eof_callback()
{
return false;
}
void Stream::metadata_callback(const ::FLAC__StreamMetadata *metadata)
{
(void)metadata;
}
::FLAC__StreamDecoderReadStatus Stream::read_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
{
(void)decoder;
FLAC__ASSERT(0 != client_data);
Stream *instance = reinterpret_cast<Stream *>(client_data);
FLAC__ASSERT(0 != instance);
return instance->read_callback(buffer, bytes);
}
::FLAC__StreamDecoderSeekStatus Stream::seek_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
{
(void) decoder;
FLAC__ASSERT(0 != client_data);
Stream *instance = reinterpret_cast<Stream *>(client_data);
FLAC__ASSERT(0 != instance);
return instance->seek_callback(absolute_byte_offset);
}
::FLAC__StreamDecoderTellStatus Stream::tell_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
{
(void) decoder;
FLAC__ASSERT(0 != client_data);
Stream *instance = reinterpret_cast<Stream *>(client_data);
FLAC__ASSERT(0 != instance);
return instance->tell_callback(absolute_byte_offset);
}
::FLAC__StreamDecoderLengthStatus Stream::length_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
{
(void) decoder;
FLAC__ASSERT(0 != client_data);
Stream *instance = reinterpret_cast<Stream *>(client_data);
FLAC__ASSERT(0 != instance);
return instance->length_callback(stream_length);
}
FLAC__bool Stream::eof_callback_(const ::FLAC__StreamDecoder *decoder, void *client_data)
{
(void) decoder;
FLAC__ASSERT(0 != client_data);
Stream *instance = reinterpret_cast<Stream *>(client_data);
FLAC__ASSERT(0 != instance);
return instance->eof_callback();
}
::FLAC__StreamDecoderWriteStatus Stream::write_callback_(const ::FLAC__StreamDecoder *decoder, const ::FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
{
(void)decoder;
FLAC__ASSERT(0 != client_data);
Stream *instance = reinterpret_cast<Stream *>(client_data);
FLAC__ASSERT(0 != instance);
return instance->write_callback(frame, buffer);
}
void Stream::metadata_callback_(const ::FLAC__StreamDecoder *decoder, const ::FLAC__StreamMetadata *metadata, void *client_data)
{
(void)decoder;
FLAC__ASSERT(0 != client_data);
Stream *instance = reinterpret_cast<Stream *>(client_data);
FLAC__ASSERT(0 != instance);
instance->metadata_callback(metadata);
}
void Stream::error_callback_(const ::FLAC__StreamDecoder *decoder, ::FLAC__StreamDecoderErrorStatus status, void *client_data)
{
(void)decoder;
FLAC__ASSERT(0 != client_data);
Stream *instance = reinterpret_cast<Stream *>(client_data);
FLAC__ASSERT(0 != instance);
instance->error_callback(status);
}
// ------------------------------------------------------------
//
// File
//
// ------------------------------------------------------------
File::File():
Stream()
{ }
File::~File()
{
}
::FLAC__StreamDecoderInitStatus File::init(FILE *file)
{
FLAC__ASSERT(0 != decoder_);
return ::FLAC__stream_decoder_init_FILE(decoder_, file, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this);
}
::FLAC__StreamDecoderInitStatus File::init(const char *filename)
{
FLAC__ASSERT(0 != decoder_);
return ::FLAC__stream_decoder_init_file(decoder_, filename, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this);
}
::FLAC__StreamDecoderInitStatus File::init(const std::string &filename)
{
return init(filename.c_str());
}
::FLAC__StreamDecoderInitStatus File::init_ogg(FILE *file)
{
FLAC__ASSERT(0 != decoder_);
return ::FLAC__stream_decoder_init_ogg_FILE(decoder_, file, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this);
}
::FLAC__StreamDecoderInitStatus File::init_ogg(const char *filename)
{
FLAC__ASSERT(0 != decoder_);
return ::FLAC__stream_decoder_init_ogg_file(decoder_, filename, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this);
}
::FLAC__StreamDecoderInitStatus File::init_ogg(const std::string &filename)
{
return init_ogg(filename.c_str());
}
// This is a dummy to satisfy the pure virtual from Stream; the
// read callback will never be called since we are initializing
// with FLAC__stream_decoder_init_FILE() or
// FLAC__stream_decoder_init_file() and those supply the read
// callback internally.
::FLAC__StreamDecoderReadStatus File::read_callback(FLAC__byte buffer[], size_t *bytes)
{
(void)buffer, (void)bytes;
FLAC__ASSERT(false);
return ::FLAC__STREAM_DECODER_READ_STATUS_ABORT; // double protection
}
}
}