| 1 | // Copyright (C) 2024 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QFFMPEGCODEC_P_H |
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| 5 | #define QFFMPEGCODEC_P_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include <QtFFmpegMediaPluginImpl/private/qffmpegdefs_p.h> // Important: Must be included first |
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| 19 | |
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| 20 | #include <QtCore/qlatin1stringview.h> |
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| 21 | #include <QtCore/qspan.h> |
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| 22 | |
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| 23 | #include <vector> |
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| 24 | |
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| 25 | extern "C" { |
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| 26 | #include <libavcodec/codec.h> |
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| 27 | } |
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| 28 | |
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| 29 | QT_BEGIN_NAMESPACE |
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| 30 | |
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| 31 | namespace QFFmpeg { |
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| 32 | |
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| 33 | class Codec |
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| 34 | { |
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| 35 | public: |
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| 36 | explicit Codec(const AVCodec *codec); |
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| 37 | |
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| 38 | [[nodiscard]] const AVCodec *get() const noexcept; |
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| 39 | [[nodiscard]] AVCodecID id() const noexcept; |
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| 40 | [[nodiscard]] QLatin1StringView name() const noexcept; |
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| 41 | [[nodiscard]] AVMediaType type() const noexcept; |
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| 42 | [[nodiscard]] int capabilities() const noexcept; |
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| 43 | [[nodiscard]] bool isEncoder() const noexcept; |
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| 44 | [[nodiscard]] bool isDecoder() const noexcept; |
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| 45 | [[nodiscard]] bool isExperimental() const noexcept; |
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| 46 | [[nodiscard]] QSpan<const AVPixelFormat> pixelFormats() const noexcept; |
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| 47 | [[nodiscard]] QSpan<const AVSampleFormat> sampleFormats() const noexcept; |
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| 48 | [[nodiscard]] QSpan<const int> sampleRates() const noexcept; |
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| 49 | [[nodiscard]] QSpan<const ChannelLayoutT> channelLayouts() const noexcept; |
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| 50 | [[nodiscard]] QSpan<const AVRational> frameRates() const noexcept; |
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| 51 | [[nodiscard]] std::vector<const AVCodecHWConfig *> hwConfigs() const noexcept; |
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| 52 | |
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| 53 | private: |
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| 54 | const AVCodec *m_codec = nullptr; |
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| 55 | }; |
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| 56 | |
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| 57 | // Minimal iterator to support range-based for-loop |
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| 58 | class CodecIterator |
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| 59 | { |
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| 60 | public: |
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| 61 | // named constructors |
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| 62 | static CodecIterator begin(); |
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| 63 | static CodecIterator end(); |
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| 64 | |
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| 65 | CodecIterator &operator++() noexcept; |
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| 66 | [[nodiscard]] Codec operator*() const noexcept; |
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| 67 | [[nodiscard]] bool operator!=(const CodecIterator &other) const noexcept; |
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| 68 | |
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| 69 | private: |
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| 70 | void *m_state = nullptr; |
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| 71 | const AVCodec *m_codec = nullptr; |
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| 72 | }; |
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| 73 | |
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| 74 | using CodecEnumerator = CodecIterator; |
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| 75 | |
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| 76 | // Helper function to wrap pixel formats inside a span |
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| 77 | QSpan<const AVPixelFormat> makeSpan(const AVPixelFormat *values); |
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| 78 | |
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| 79 | } // namespace QFFmpeg |
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| 80 | |
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| 81 | QT_END_NAMESPACE |
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| 82 | |
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| 83 | #endif |
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| 84 | |
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