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https://github.com/SerenityOS/serenity.git
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8af97d0ce7
This fixes all current code smells, bugs and issues reported by SonarCloud static analysis. Other issues are almost exclusively false positives. This makes much code clearer, and some minor benefits in performance or bug evasion may be gained.
79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, kleines Filmröllchen <malu.bertsch@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/ByteBuffer.h>
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#include <AK/MemoryStream.h>
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#include <AK/OwnPtr.h>
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#include <AK/RefPtr.h>
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#include <AK/Stream.h>
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#include <AK/String.h>
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#include <AK/StringView.h>
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#include <AK/WeakPtr.h>
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#include <LibAudio/Buffer.h>
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#include <LibAudio/Loader.h>
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#include <LibCore/File.h>
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#include <LibCore/FileStream.h>
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namespace Audio {
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class Buffer;
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// defines for handling the WAV header data
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#define WAVE_FORMAT_PCM 0x0001 // PCM
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#define WAVE_FORMAT_IEEE_FLOAT 0x0003 // IEEE float
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#define WAVE_FORMAT_ALAW 0x0006 // 8-bit ITU-T G.711 A-law
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#define WAVE_FORMAT_MULAW 0x0007 // 8-bit ITU-T G.711 µ-law
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#define WAVE_FORMAT_EXTENSIBLE 0xFFFE // Determined by SubFormat
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// Parses a WAV file and produces an Audio::Buffer.
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class WavLoaderPlugin : public LoaderPlugin {
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public:
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explicit WavLoaderPlugin(StringView path);
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explicit WavLoaderPlugin(const ByteBuffer& buffer);
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virtual bool sniff() override { return valid; }
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virtual bool has_error() override { return !m_error_string.is_null(); }
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virtual const String& error_string() override { return m_error_string; }
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// The Buffer returned contains input data resampled at the
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// destination audio device sample rate.
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virtual RefPtr<Buffer> get_more_samples(size_t max_bytes_to_read_from_input = 128 * KiB) override;
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virtual void reset() override { return seek(0); }
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// sample_index 0 is the start of the raw audio sample data
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// within the file/stream.
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virtual void seek(const int sample_index) override;
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virtual int loaded_samples() override { return m_loaded_samples; }
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virtual int total_samples() override { return m_total_samples; }
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virtual u32 sample_rate() override { return m_sample_rate; }
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virtual u16 num_channels() override { return m_num_channels; }
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virtual PcmSampleFormat pcm_format() override { return m_sample_format; }
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virtual RefPtr<Core::File> file() override { return m_file; }
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private:
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bool parse_header();
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bool valid { false };
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RefPtr<Core::File> m_file;
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OwnPtr<AK::InputStream> m_stream;
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AK::InputMemoryStream* m_memory_stream;
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String m_error_string;
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u32 m_sample_rate { 0 };
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u16 m_num_channels { 0 };
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PcmSampleFormat m_sample_format;
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size_t m_byte_offset_of_data_samples { 0 };
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int m_loaded_samples { 0 };
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int m_total_samples { 0 };
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};
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}
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