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Diffstat (limited to 'tests/manual/sharedtexture/videoplayer.cpp')
| -rw-r--r-- | tests/manual/sharedtexture/videoplayer.cpp | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/tests/manual/sharedtexture/videoplayer.cpp b/tests/manual/sharedtexture/videoplayer.cpp new file mode 100644 index 000000000..f970116b5 --- /dev/null +++ b/tests/manual/sharedtexture/videoplayer.cpp @@ -0,0 +1,233 @@ +/**************************************************************************** +** +** Copyright (C) 2018 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the Qt3D module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QMutexLocker> +#include <QtMultimedia/QVideoFrame> + +#include "videoplayer.h" + +TextureWidget::TextureWidget(QWidget *parent) + : QOpenGLWidget(parent) + , m_texture(QOpenGLTexture::Target2D) +{ + // Lock mutex so that we never process a frame until we have been initialized + m_mutex.lock(); +} + +// Main thread +void TextureWidget::initializeGL() +{ + initializeOpenGLFunctions(); + glClearColor(0.0f, 0.0f, 0.0f, 1.0f); + + if (!m_shader.addShaderFromSourceCode(QOpenGLShader::Vertex, + "#version 330\n" + "out vec2 coords;\n" + "const vec2 positions[6] = vec2[] (" + " vec2(-1.0, 1.0)," + " vec2(-1.0, -1.0)," + " vec2(1.0, 1.0)," + " vec2(1.0, 1.0)," + " vec2(-1.0, -1.0)," + " vec2(1.0, -1.0));\n" + "const vec2 texCoords[6] = vec2[] (" + " vec2(0.0, 0.0)," + " vec2(0.0, 1.0)," + " vec2(1.0, 0.0)," + " vec2(1.0, 0.0)," + " vec2(0.0, 1.0)," + " vec2(1.0, 1.0));\n" + "void main() {\n" + " coords = texCoords[gl_VertexID];\n" + " gl_Position = vec4(positions[gl_VertexID], 0.0, 1.0);\n" + "}")) + qDebug() << "Failed to load vertex shader" << m_shader.log(); + if (!m_shader.addShaderFromSourceCode(QOpenGLShader::Fragment, + "#version 330\n" + "in vec2 coords;\n" + "uniform sampler2D video_texture;\n" + "out vec4 fragColor;\n" + "void main() {\n" + " fragColor = texture(video_texture, coords);\n" + "}")) + qDebug() << "Failed to load fragment shader" << m_shader.log(); + if (!m_shader.link()) + qDebug() << "Failed to link shaders" << m_shader.log(); + + qDebug() << Q_FUNC_INFO << context()->shareContext(); + + m_vao.create(); + // Allow rendering/frame acquisition to go on + m_mutex.unlock(); +} + +// Main thread +void TextureWidget::paintGL() +{ + QMutexLocker lock(&m_mutex); + glViewport(0, 0, width(), height()); + + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + + if (!m_texture.isCreated()) + return; + + m_shader.bind(); + + m_texture.bind(0); + m_shader.setUniformValue("video_texture", 0); + + m_vao.bind(); + glDrawArrays(GL_TRIANGLES, 0, 6); + + m_vao.release(); + m_shader.release(); +} + +// Video Player thread +void TextureWidget::setVideoFrame(const QVideoFrame &frame) +{ + // Ensure we won't be rendering while we are processing the frame + QMutexLocker lock(&m_mutex); + + QVideoFrame f = frame; + + // Map frame + if (!f.map(QAbstractVideoBuffer::ReadOnly)) + return; + + makeCurrent(); + + // Create or recreate texture + if (m_texture.width() != f.width() || m_texture.height() != f.height()) { + if (m_texture.isCreated()) + m_texture.destroy(); + + m_texture.setSize(f.width(), f.height()); + m_texture.setFormat(QOpenGLTexture::RGBA32F); + m_texture.setWrapMode(QOpenGLTexture::ClampToBorder); + m_texture.setMinificationFilter(QOpenGLTexture::Nearest); + m_texture.setMagnificationFilter(QOpenGLTexture::Nearest); + m_texture.allocateStorage(); + + m_texture.create(); + emit textureIdChanged(m_texture.textureId()); + } + + const QVideoFrame::PixelFormat pFormat = f.pixelFormat(); + if (pFormat == QVideoFrame::Format_RGB32) { + m_texture.setData(QOpenGLTexture::RGBA, QOpenGLTexture::UInt8, f.bits()); + } + + doneCurrent(); + + // Request display udpate + QOpenGLWidget::update(); + + // Unmap + f.unmap(); +} + +QList<QVideoFrame::PixelFormat> GLVideoSurface::supportedPixelFormats(QAbstractVideoBuffer::HandleType type) const +{ + if (type == QAbstractVideoBuffer::NoHandle) + return { + QVideoFrame::Format_RGB32, + QVideoFrame::Format_ARGB32, + QVideoFrame::Format_BGR32, + QVideoFrame::Format_BGRA32 + }; + return {}; +} + +// Video player thread +bool GLVideoSurface::present(const QVideoFrame &frame) +{ + emit onNewFrame(frame); + return true; +} + +VideoPlayerThread::VideoPlayerThread(TextureWidget *textureWidget) + : QThread(textureWidget) + , m_player(new QMediaPlayer(nullptr, QMediaPlayer::VideoSurface)) + , m_surface(new GLVideoSurface()) +{ + m_player->moveToThread(this); + m_player->setMedia(QUrl("https://www.sample-videos.com/video/mp4/720/big_buck_bunny_720p_1mb.mp4")); + + // Tell player to render on GLVideoSurface + m_surface->moveToThread(this); + m_player->setVideoOutput(m_surface.get()); + + // Display errors + QObject::connect(m_player.get(), QOverload<QMediaPlayer::Error>::of(&QMediaPlayer::error), + m_player.get(), [this] (QMediaPlayer::Error e) { + qDebug() << Q_FUNC_INFO << e << m_player->errorString(); + }); + + // Repeat video indefinitely + QObject::connect(m_player.get(), &QMediaPlayer::stateChanged, m_player.get(), [this] (QMediaPlayer::State state) { + if (state == QMediaPlayer::StoppedState) + m_player->play(); + }); + + // Start playing when thread starts + QObject::connect(this, &QThread::started, this, [this] { m_player->play(); }); + + // Direct connection between 2 objects living in different threads + QObject::connect(m_surface.get(), &GLVideoSurface::onNewFrame, + textureWidget, &TextureWidget::setVideoFrame, Qt::DirectConnection); +} + +VideoPlayerThread::~VideoPlayerThread() +{ + exit(0); + wait(); +} |