You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
51 lines
1.2 KiB
51 lines
1.2 KiB
/*
|
|
* Copyright 2023 jacqueline <me@jacqueline.id.au>
|
|
*
|
|
* SPDX-License-Identifier: GPL-3.0-only
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <cstddef>
|
|
#include <cstdint>
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
#include "chunk.hpp"
|
|
#include "ff.h"
|
|
#include "span.hpp"
|
|
|
|
#include "audio_element.hpp"
|
|
#include "codec.hpp"
|
|
#include "stream_info.hpp"
|
|
|
|
namespace audio {
|
|
|
|
/*
|
|
* An audio element that accepts various kinds of encoded audio streams as
|
|
* input, and converts them to uncompressed PCM output.
|
|
*/
|
|
class AudioDecoder {
|
|
public:
|
|
AudioDecoder();
|
|
~AudioDecoder();
|
|
|
|
auto Process(const InputStream& input, OutputStream* output) -> void;
|
|
|
|
AudioDecoder(const AudioDecoder&) = delete;
|
|
AudioDecoder& operator=(const AudioDecoder&) = delete;
|
|
|
|
private:
|
|
std::unique_ptr<codecs::ICodec> current_codec_;
|
|
std::optional<StreamInfo::Encoded> current_input_format_;
|
|
std::optional<StreamInfo::Format> current_output_format_;
|
|
std::optional<std::size_t> duration_seconds_from_decoder_;
|
|
std::optional<std::size_t> seek_to_sample_;
|
|
bool has_prepared_output_;
|
|
bool has_samples_to_send_;
|
|
bool has_input_remaining_;
|
|
|
|
auto ProcessStreamInfo(const StreamInfo& info) -> bool;
|
|
};
|
|
|
|
} // namespace audio
|
|
|