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233b4f2ca8
We had numerous NiH-based implementations of audio formats and metadata that we now no longer need because we either don't make use of the code, or we replaced its implementation by FFmpeg.
62 lines
2 KiB
C++
62 lines
2 KiB
C++
/*
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* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Time.h>
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#include <LibMedia/Audio/Loader.h>
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#include <LibMedia/Audio/Sample.h>
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#include <LibWeb/Platform/AudioCodecPlugin.h>
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namespace Web::Platform {
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static AudioCodecPlugin::AudioCodecPluginCreator s_creation_hook;
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AudioCodecPlugin::AudioCodecPlugin() = default;
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AudioCodecPlugin::~AudioCodecPlugin() = default;
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void AudioCodecPlugin::install_creation_hook(AudioCodecPluginCreator creation_hook)
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{
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VERIFY(!s_creation_hook);
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s_creation_hook = move(creation_hook);
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}
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ErrorOr<NonnullOwnPtr<AudioCodecPlugin>> AudioCodecPlugin::create(NonnullRefPtr<Audio::Loader> loader)
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{
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VERIFY(s_creation_hook);
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return s_creation_hook(move(loader));
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}
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ErrorOr<FixedArray<Audio::Sample>> AudioCodecPlugin::read_samples_from_loader(Audio::Loader& loader, size_t samples_to_load)
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{
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auto buffer_or_error = loader.get_more_samples(samples_to_load);
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if (buffer_or_error.is_error()) {
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dbgln("Error while loading samples: {}", buffer_or_error.error().description);
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return Error::from_string_literal("Error while loading samples");
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}
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return buffer_or_error.release_value();
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}
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AK::Duration AudioCodecPlugin::set_loader_position(Audio::Loader& loader, double position, AK::Duration duration)
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{
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if (loader.total_samples() == 0)
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return current_loader_position(loader);
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auto duration_value = static_cast<double>(duration.to_milliseconds()) / 1000.0;
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position = position / duration_value * static_cast<double>(loader.total_samples() - 1);
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loader.seek(static_cast<int>(position)).release_value_but_fixme_should_propagate_errors();
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return current_loader_position(loader);
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}
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AK::Duration AudioCodecPlugin::current_loader_position(Audio::Loader const& loader)
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{
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auto samples_played = static_cast<double>(loader.loaded_samples());
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auto sample_rate = static_cast<double>(loader.sample_rate());
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return AK::Duration::from_milliseconds(static_cast<i64>(samples_played / sample_rate * 1000.0));
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}
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}
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