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.
75 lines
1.6 KiB
75 lines
1.6 KiB
/*
|
|
* Copyright 2023 jacqueline <me@jacqueline.id.au>
|
|
*
|
|
* SPDX-License-Identifier: GPL-3.0-only
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <sys/_stdint.h>
|
|
#include <cstdint>
|
|
#include <memory>
|
|
#include "audio_decoder.hpp"
|
|
#include "audio_sink.hpp"
|
|
#include "audio_source.hpp"
|
|
#include "codec.hpp"
|
|
#include "pipeline.hpp"
|
|
#include "stream_info.hpp"
|
|
|
|
namespace audio {
|
|
|
|
class Timer {
|
|
public:
|
|
explicit Timer(StreamInfo::Pcm);
|
|
|
|
auto SetLengthSeconds(uint32_t) -> void;
|
|
auto SetLengthBytes(uint32_t) -> void;
|
|
|
|
auto AddBytes(std::size_t) -> void;
|
|
auto has_duration() const -> bool { return has_duration_; }
|
|
|
|
private:
|
|
auto bytes_to_samples(uint32_t) -> uint32_t;
|
|
|
|
StreamInfo::Pcm format_;
|
|
|
|
uint32_t current_seconds_;
|
|
uint32_t current_sample_in_second_;
|
|
|
|
bool has_duration_;
|
|
uint32_t total_duration_seconds_;
|
|
};
|
|
|
|
class AudioTask {
|
|
public:
|
|
static auto Start(IAudioSource* source, IAudioSink* sink) -> AudioTask*;
|
|
|
|
auto Main() -> void;
|
|
|
|
private:
|
|
AudioTask(IAudioSource* source, IAudioSink* sink);
|
|
|
|
auto HandleNewStream(const InputStream&) -> bool;
|
|
|
|
auto BeginDecoding(InputStream&) -> bool;
|
|
auto ContinueDecoding(InputStream&) -> bool;
|
|
auto FinishDecoding(InputStream&) -> void;
|
|
|
|
auto ForwardPcmStream(StreamInfo::Pcm&, cpp::span<const std::byte>) -> bool;
|
|
|
|
auto ConfigureSink(const StreamInfo::Pcm&) -> bool;
|
|
|
|
IAudioSource* source_;
|
|
IAudioSink* sink_;
|
|
std::unique_ptr<codecs::ICodec> codec_;
|
|
std::unique_ptr<Timer> timer_;
|
|
|
|
bool has_begun_decoding_;
|
|
std::optional<StreamInfo::Format> current_input_format_;
|
|
std::optional<StreamInfo::Pcm> current_output_format_;
|
|
|
|
std::byte* sample_buffer_;
|
|
std::size_t sample_buffer_len_;
|
|
};
|
|
|
|
} // namespace audio
|
|
|