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114 lines
2.3 KiB
C++
114 lines
2.3 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Copyright The Music Player Daemon Project
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#include "AdPlugDecoderPlugin.h"
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#include "tag/Handler.hxx"
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#include "../DecoderAPI.hxx"
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#include "pcm/CheckAudioFormat.hxx"
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#include "fs/Path.hxx"
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#include "util/Domain.hxx"
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#include "Log.hxx"
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#include <adplug/adplug.h>
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#include <adplug/emuopl.h>
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#include <cassert>
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static constexpr Domain adplug_domain("adplug");
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static unsigned sample_rate;
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static bool
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adplug_init(const ConfigBlock &block)
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{
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FmtDebug(adplug_domain, "adplug {}",
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CAdPlug::get_version());
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sample_rate = block.GetPositiveValue("sample_rate", 48000U);
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CheckSampleRate(sample_rate);
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return true;
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}
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static void
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adplug_file_decode(DecoderClient &client, Path path_fs)
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{
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CEmuopl opl(sample_rate, true, true);
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opl.init();
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CPlayer *player = CAdPlug::factory(path_fs.c_str(), &opl);
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if (player == nullptr)
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return;
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const AudioFormat audio_format(sample_rate, SampleFormat::S16, 2);
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assert(audio_format.IsValid());
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client.Ready(audio_format, false,
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SongTime::FromMS(player->songlength()));
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DecoderCommand cmd;
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do {
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if (!player->update())
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break;
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int16_t buffer[2048];
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constexpr unsigned frames_per_buffer = std::size(buffer) / 2;
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opl.update(buffer, frames_per_buffer);
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cmd = client.SubmitAudio(nullptr,
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std::span{buffer},
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0);
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} while (cmd == DecoderCommand::NONE);
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delete player;
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}
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static void
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adplug_scan_tag(TagType type, const std::string_view value,
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TagHandler &handler) noexcept
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{
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if (!value.empty())
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handler.OnTag(type, value);
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}
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static bool
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adplug_scan_file(Path path_fs, TagHandler &handler) noexcept
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{
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CEmuopl opl(sample_rate, true, true);
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opl.init();
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CPlayer *player = CAdPlug::factory(path_fs.c_str(), &opl);
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if (player == nullptr)
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return false;
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handler.OnDuration(SongTime::FromMS(player->songlength()));
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if (handler.WantTag()) {
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adplug_scan_tag(TAG_TITLE, player->gettitle(),
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handler);
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adplug_scan_tag(TAG_ARTIST, player->getauthor(),
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handler);
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adplug_scan_tag(TAG_COMMENT, player->getdesc(),
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handler);
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}
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delete player;
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return true;
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}
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static const char *const adplug_suffixes[] = {
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"amd",
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"d00",
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"hsc",
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"laa",
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"rad",
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"raw",
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"sa2",
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nullptr
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};
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constexpr DecoderPlugin adplug_decoder_plugin =
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DecoderPlugin("adplug", adplug_file_decode, adplug_scan_file)
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.WithInit(adplug_init)
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.WithSuffixes(adplug_suffixes);
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