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initial import
This commit is contained in:
Josh Coalson
205
src/libFLAC++/stream_decoder.cc
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205
src/libFLAC++/stream_decoder.cc
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/* libFLAC++ - Free Lossless Audio Codec library
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* Copyright (C) 2002 Josh Coalson
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "FLAC++/decoder.h"
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#include "FLAC/assert.h"
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namespace FLAC {
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namespace Decoder {
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Stream::Stream():
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decoder_(::FLAC__stream_decoder_new())
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{ }
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Stream::~Stream()
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{
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if(0 != decoder_) {
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::FLAC__stream_decoder_finish(decoder_);
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::FLAC__stream_decoder_delete(decoder_);
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}
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}
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bool Stream::is_valid() const
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{
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return 0 != decoder_;
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}
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bool Stream::set_metadata_respond(::FLAC__MetaDataType type)
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_set_metadata_respond(decoder_, type);
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}
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bool Stream::set_metadata_respond_application(const FLAC__byte id[4])
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_set_metadata_respond_application(decoder_, id);
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}
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bool Stream::set_metadata_respond_all()
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_set_metadata_respond_all(decoder_);
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}
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bool Stream::set_metadata_ignore(::FLAC__MetaDataType type)
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_set_metadata_ignore(decoder_, type);
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}
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bool Stream::set_metadata_ignore_application(const FLAC__byte id[4])
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_set_metadata_ignore_application(decoder_, id);
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}
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bool Stream::set_metadata_ignore_all()
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_set_metadata_ignore_all(decoder_);
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}
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Stream::State Stream::get_state() const
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{
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FLAC__ASSERT(is_valid());
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return State(::FLAC__stream_decoder_get_state(decoder_));
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}
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unsigned Stream::get_channels() const
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_get_channels(decoder_);
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}
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::FLAC__ChannelAssignment Stream::get_channel_assignment() const
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_get_channel_assignment(decoder_);
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}
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unsigned Stream::get_bits_per_sample() const
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_get_bits_per_sample(decoder_);
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}
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unsigned Stream::get_sample_rate() const
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_get_sample_rate(decoder_);
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}
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unsigned Stream::get_blocksize() const
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_get_blocksize(decoder_);
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}
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Stream::State Stream::init()
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{
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FLAC__ASSERT(is_valid());
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::FLAC__stream_decoder_set_read_callback(decoder_, read_callback_);
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::FLAC__stream_decoder_set_write_callback(decoder_, write_callback_);
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::FLAC__stream_decoder_set_metadata_callback(decoder_, metadata_callback_);
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::FLAC__stream_decoder_set_error_callback(decoder_, error_callback_);
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::FLAC__stream_decoder_set_client_data(decoder_, (void*)this);
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return State(::FLAC__stream_decoder_init(decoder_));
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}
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void Stream::finish()
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{
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FLAC__ASSERT(is_valid());
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::FLAC__stream_decoder_finish(decoder_);
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}
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bool Stream::flush()
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_flush(decoder_);
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}
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bool Stream::reset()
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_reset(decoder_);
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}
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bool Stream::process_whole_stream()
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_process_whole_stream(decoder_);
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}
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bool Stream::process_metadata()
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_process_metadata(decoder_);
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}
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bool Stream::process_one_frame()
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_process_one_frame(decoder_);
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}
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bool Stream::process_remaining_frames()
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{
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FLAC__ASSERT(is_valid());
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return ::FLAC__stream_decoder_process_remaining_frames(decoder_);
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}
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::FLAC__StreamDecoderReadStatus Stream::read_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__byte buffer[], unsigned *bytes, void *client_data)
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{
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(void)decoder;
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FLAC__ASSERT(0 != client_data);
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Stream *instance = reinterpret_cast<Stream *>(client_data);
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FLAC__ASSERT(0 != instance);
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return instance->read_callback(buffer, bytes);
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}
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::FLAC__StreamDecoderWriteStatus Stream::write_callback_(const ::FLAC__StreamDecoder *decoder, const ::FLAC__Frame *frame, const FLAC__int32 *buffer[], void *client_data)
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{
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(void)decoder;
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FLAC__ASSERT(0 != client_data);
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Stream *instance = reinterpret_cast<Stream *>(client_data);
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FLAC__ASSERT(0 != instance);
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return instance->write_callback(frame, buffer);
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}
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void Stream::metadata_callback_(const ::FLAC__StreamDecoder *decoder, const ::FLAC__StreamMetaData *metadata, void *client_data)
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{
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(void)decoder;
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FLAC__ASSERT(0 != client_data);
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Stream *instance = reinterpret_cast<Stream *>(client_data);
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FLAC__ASSERT(0 != instance);
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instance->metadata_callback(metadata);
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}
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void Stream::error_callback_(const ::FLAC__StreamDecoder *decoder, ::FLAC__StreamDecoderErrorStatus status, void *client_data)
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{
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(void)decoder;
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FLAC__ASSERT(0 != client_data);
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Stream *instance = reinterpret_cast<Stream *>(client_data);
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FLAC__ASSERT(0 != instance);
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instance->error_callback(status);
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}
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};
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};
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