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/*
* Copyright 2003-2021 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef CHROMAPRINT_DECODER_CLIENT_HXX
#define CHROMAPRINT_DECODER_CLIENT_HXX
#include "Context.hxx"
#include "decoder/Client.hxx"
#include "thread/Mutex.hxx"
#include <cstdint>
#include <exception>
#include <memory>
class PcmConvert;
class ChromaprintDecoderClient : public DecoderClient {
bool ready = false;
std::unique_ptr<PcmConvert> convert;
Chromaprint::Context chromaprint;
uint64_t remaining_bytes;
protected:
/**
* This is set when an I/O error occurs while decoding; it
* will be rethrown by Finish().
*/
std::exception_ptr error;
public:
Mutex mutex;
ChromaprintDecoderClient();
~ChromaprintDecoderClient() noexcept;
bool IsReady() const noexcept {
return ready;
}
void Reset() noexcept {
}
void Finish();
std::string GetFingerprint() const {
return chromaprint.GetFingerprint();
}
/* virtual methods from DecoderClient */
void Ready(AudioFormat audio_format,
bool seekable, SignedSongTime duration) noexcept override;
DecoderCommand GetCommand() noexcept override {
return !error && (!ready || remaining_bytes > 0)
? DecoderCommand::NONE
: DecoderCommand::STOP;
}
void CommandFinished() noexcept override {}
SongTime GetSeekTime() noexcept override {
return SongTime::zero();
}
uint64_t GetSeekFrame() noexcept override {
return 0;
}
void SeekError() noexcept override {}
//InputStreamPtr OpenUri(const char *) override;
size_t Read(InputStream &is,
void *buffer, size_t length) noexcept override;
void SubmitTimestamp(FloatDuration) noexcept override {}
DecoderCommand SubmitData(InputStream *is,
const void *data, size_t length,
uint16_t kbit_rate) noexcept override;
DecoderCommand SubmitTag(InputStream *, Tag &&) noexcept override {
return GetCommand();
}
void SubmitReplayGain(const ReplayGainInfo *) noexcept override {}
void SubmitMixRamp(MixRampInfo &&) noexcept override {}
};
#endif