| 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 | #include "qffmpegtextureconverter_p.h" |
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| 5 | #include "qffmpeghwaccel_p.h" |
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| 6 | #include <rhi/qrhi.h> |
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| 7 | |
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| 8 | #include <q20type_traits.h> |
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| 9 | |
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| 10 | #if QT_CONFIG(vaapi) |
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| 11 | # include "qffmpeghwaccel_vaapi_p.h" |
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| 12 | #endif |
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| 13 | |
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| 14 | #ifdef Q_OS_DARWIN |
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| 15 | # include "qffmpeghwaccel_videotoolbox_p.h" |
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| 16 | #endif |
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| 17 | |
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| 18 | #if QT_CONFIG(wmf) |
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| 19 | # include "qffmpeghwaccel_d3d11_p.h" |
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| 20 | #endif |
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| 21 | |
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| 22 | #ifdef Q_OS_ANDROID |
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| 23 | # include "qffmpeghwaccel_mediacodec_p.h" |
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| 24 | #endif |
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| 25 | |
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| 26 | QT_BEGIN_NAMESPACE |
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| 27 | |
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| 28 | using namespace QFFmpeg; |
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| 29 | |
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| 30 | namespace { |
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| 31 | |
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| 32 | template <typename Converter> |
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| 33 | using ConverterTypeIdentity = q20::type_identity<Converter>; |
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| 34 | |
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| 35 | template <typename ConverterTypeHandler> |
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| 36 | void applyConverterTypeByPixelFormat(AVPixelFormat fmt, ConverterTypeHandler &&handler) |
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| 37 | { |
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| 38 | if (!TextureConverter::hwTextureConversionEnabled()) |
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| 39 | return; |
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| 40 | |
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| 41 | switch (fmt) { |
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| 42 | #if QT_CONFIG(vaapi) |
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| 43 | case AV_PIX_FMT_VAAPI: |
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| 44 | handler(ConverterTypeIdentity<VAAPITextureConverter>{}); |
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| 45 | break; |
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| 46 | #endif |
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| 47 | #ifdef Q_OS_DARWIN |
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| 48 | case AV_PIX_FMT_VIDEOTOOLBOX: |
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| 49 | handler(ConverterTypeIdentity<VideoToolBoxTextureConverter>{}); |
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| 50 | break; |
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| 51 | #endif |
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| 52 | #if QT_CONFIG(wmf) |
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| 53 | case AV_PIX_FMT_D3D11: |
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| 54 | handler(ConverterTypeIdentity<D3D11TextureConverter>{}); |
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| 55 | break; |
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| 56 | #endif |
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| 57 | #ifdef Q_OS_ANDROID |
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| 58 | case AV_PIX_FMT_MEDIACODEC: |
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| 59 | handler(ConverterTypeIdentity<MediaCodecTextureConverter>{}); |
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| 60 | break; |
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| 61 | #endif |
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| 62 | default: |
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| 63 | Q_UNUSED(handler) |
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| 64 | break; |
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| 65 | } |
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| 66 | } |
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| 67 | |
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| 68 | } // namespace |
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| 69 | |
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| 70 | TextureConverterBackend::~TextureConverterBackend() = default; |
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| 71 | |
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| 72 | TextureConverter::TextureConverter(QRhi &rhi) : m_rhi(rhi) { } |
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| 73 | |
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| 74 | bool TextureConverter::init(AVFrame &hwFrame) |
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| 75 | { |
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| 76 | Q_ASSERT(hwFrame.hw_frames_ctx); |
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| 77 | AVPixelFormat fmt = AVPixelFormat(hwFrame.format); |
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| 78 | if (fmt != m_format) |
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| 79 | updateBackend(format: fmt); |
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| 80 | return !isNull(); |
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| 81 | } |
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| 82 | |
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| 83 | QVideoFrameTexturesUPtr TextureConverter::createTextures(AVFrame &hwFrame, |
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| 84 | QVideoFrameTexturesUPtr &oldTextures) |
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| 85 | { |
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| 86 | if (isNull()) |
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| 87 | return nullptr; |
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| 88 | |
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| 89 | Q_ASSERT(hwFrame.format == m_format); |
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| 90 | return m_backend->createTextures(&hwFrame, oldTextures); |
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| 91 | } |
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| 92 | |
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| 93 | QVideoFrameTexturesHandlesUPtr |
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| 94 | TextureConverter::createTextureHandles(AVFrame &hwFrame, QVideoFrameTexturesHandlesUPtr oldHandles) |
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| 95 | { |
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| 96 | if (isNull()) |
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| 97 | return nullptr; |
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| 98 | |
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| 99 | Q_ASSERT(hwFrame.format == m_format); |
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| 100 | return m_backend->createTextureHandles(&hwFrame, std::move(oldHandles)); |
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| 101 | } |
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| 102 | |
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| 103 | void TextureConverter::updateBackend(AVPixelFormat fmt) |
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| 104 | { |
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| 105 | m_backend = nullptr; |
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| 106 | m_format = fmt; // should be saved even if m_backend is not created |
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| 107 | |
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| 108 | applyConverterTypeByPixelFormat(fmt: m_format, handler: [this](auto converterTypeIdentity) { |
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| 109 | using ConverterType = typename decltype(converterTypeIdentity)::type; |
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| 110 | m_backend = std::make_shared<ConverterType>(&m_rhi); |
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| 111 | }); |
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| 112 | } |
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| 113 | |
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| 114 | bool TextureConverter::hwTextureConversionEnabled() |
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| 115 | { |
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| 116 | // HW texture conversions are not stable in specific cases, dependent on the hardware and OS. |
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| 117 | // We need the env var for testing with no texture conversion on the user's side. |
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| 118 | static const int disableHwConversion = |
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| 119 | qEnvironmentVariableIntValue(varName: "QT_DISABLE_HW_TEXTURES_CONVERSION" ); |
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| 120 | |
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| 121 | return !disableHwConversion; |
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| 122 | } |
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| 123 | |
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| 124 | void TextureConverter::applyDecoderPreset(const AVPixelFormat format, AVCodecContext &codecContext) |
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| 125 | { |
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| 126 | if (!hwTextureConversionEnabled()) |
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| 127 | return; |
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| 128 | |
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| 129 | Q_ASSERT(codecContext.codec && Codec(codecContext.codec).isDecoder()); |
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| 130 | |
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| 131 | #if QT_CONFIG(wmf) |
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| 132 | if (format == AV_PIX_FMT_D3D11) |
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| 133 | D3D11TextureConverter::SetupDecoderTextures(&codecContext); |
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| 134 | #elif defined Q_OS_ANDROID |
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| 135 | if (format == AV_PIX_FMT_MEDIACODEC) |
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| 136 | MediaCodecTextureConverter::setupDecoderSurface(&codecContext); |
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| 137 | #else |
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| 138 | Q_UNUSED(codecContext); |
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| 139 | Q_UNUSED(format); |
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| 140 | #endif |
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| 141 | } |
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| 142 | |
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| 143 | bool TextureConverter::isBackendAvailable(AVFrame &hwFrame) |
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| 144 | { |
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| 145 | bool result = false; |
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| 146 | applyConverterTypeByPixelFormat(fmt: AVPixelFormat(hwFrame.format), handler: [&result](auto) { |
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| 147 | result = true; |
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| 148 | }); |
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| 149 | return result; |
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| 150 | } |
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| 151 | |
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| 152 | QT_END_NAMESPACE |
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| 153 | |
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