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omx_mediaprocessorelement.cpp
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omx_mediaprocessorelement.cpp
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/*
* Project: PiOmxTextures
* Author: Luca Carlon
* Date: 11.01.2012
*
* Copyright (c) 2012, 2013 Luca Carlon. All rights reserved.
*
* This file is part of PiOmxTextures.
*
* PiOmxTextures is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* PiOmxTextures is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with PiOmxTextures. If not, see <http://www.gnu.org/licenses/>.
*/
#include "omx_mediaprocessorelement.h"
#include "omx_textureproviderqquickitem.h"
#include "lgl_logging.h"
#define CHECK_MEDIA_PROCESSOR \
if (!m_mediaProc) { \
LOG_WARNING(LOG_TAG, "The media processor is not available yet."); \
return false; \
}
OMX_MediaProcessorElement::OMX_MediaProcessorElement(QQuickItem *parent) :
QQuickItem(parent),
m_mediaProc(NULL),
m_texProvider(NULL),
m_textureId(0)
{
// I need to set this as a "has-conent" item because I need the updatePaintNode
// to be invoked.
setFlag(QQuickItem::ItemHasContents, true);
}
OMX_MediaProcessorElement::~OMX_MediaProcessorElement()
{
delete m_mediaProc;
delete m_texProvider;
}
QString OMX_MediaProcessorElement::source()
{
return m_source;
}
void OMX_MediaProcessorElement::setSource(QString source)
{
LOG_VERBOSE(LOG_TAG, "Setting source.");
// TODO: Handle errors.
m_source = source;
if (m_mediaProc) {
if (openMedia(source))
m_mediaProc->play();
else {
LOG_WARNING(LOG_TAG, "Failed to open media.");
}
}
else {
LOG_VERBOSE(LOG_TAG, "Play delayed.");
}
}
QSGNode* OMX_MediaProcessorElement::updatePaintNode(QSGNode*, UpdatePaintNodeData*)
{
if (!m_texProvider) {
m_texProvider = new OMX_TextureProviderQQuickItem(this);
m_mediaProc = new OMX_MediaProcessor(m_texProvider);
connect(m_mediaProc, SIGNAL(playbackCompleted()), this, SIGNAL(playbackCompleted()));
connect(m_mediaProc, SIGNAL(playbackStarted()), this, SIGNAL(playbackStarted()));
// Open if filepath is set.
// TODO: Handle errors.
if (!m_source.isNull()) {
//if (QFile(m_source).exists()) {
if (openMedia(m_source))
m_mediaProc->play();
//}
//else {
LOG_WARNING(LOG_TAG, "File does not exist.");
//}
}
}
return NULL;
#if 0
QSGGeometryNode* node = 0;
QSGGeometry* geometry = 0;
if (!oldNode) {
// Create the node.
node = new QSGGeometryNode;
geometry = new QSGGeometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 4);
geometry->setDrawingMode(GL_TRIANGLE_STRIP);
node->setGeometry(geometry);
node->setFlag(QSGNode::OwnsGeometry);
// TODO: Who is freeing this?
// TODO: I cannot know the texture size here.
QSGOpaqueTextureMaterial* material = new QSGOpaqueTextureMaterial;
m_sgtexture = new OMX_SGTexture(m_texture, QSize(1920, 1080));
material->setTexture(m_sgtexture);
node->setMaterial(material);
node->setFlag(QSGNode::OwnsMaterial);
#ifdef ENABLE_VIDEO_PROCESSOR
QPlatformNativeInterface* nativeInterface =
QGuiApplicationPrivate::platformIntegration()->nativeInterface();
Q_ASSERT(nativeInterface);
EGLDisplay eglDisplay = nativeInterface->nativeResourceForIntegration("egldisplay");
EGLContext eglContext = nativeInterface->nativeResourceForContext(
"eglcontext",
QOpenGLContext::currentContext()
);
#endif
// Provider MUST be built in this thread.
m_provider = new OMX_TextureProviderQQuickItem(this);
#ifdef ENABLE_VIDEO_PROCESSOR
m_videoProc = new OMX_VideoProcessor(eglDisplay, eglContext, m_provider);
connect(m_videoProc, SIGNAL(textureReady(uint)), this, SLOT(onTextureChanged(uint)));
if (!m_source.isNull())
m_videoProc->setVideoPath(m_source);
if (m_playScheduled) {
m_timer->start(30);
m_videoProc->play();
}
#elif ENABLE_MEDIA_PROCESSOR
LOG_VERBOSE(LOG_TAG, "Starting video using media processor...");
m_mediaProc = new OMX_MediaProcessor(m_provider);
m_mediaProc->setFilename("/home/pi/usb/Cars2.mkv", m_texture);
//if (m_playScheduled) {
m_timer->start(40);
m_mediaProc->play();
//}
#else
LOG_VERBOSE(LOG_TAG, "Starting video...");
QtConcurrent::run(&startVideo, m_provider, this);
m_timer->start(30);
#endif
}
else {
node = static_cast<QSGGeometryNode*>(oldNode);
geometry = node->geometry();
geometry->allocate(4);
// Update texture in the node if needed.
QSGOpaqueTextureMaterial* material = (QSGOpaqueTextureMaterial*)node->material();
if (m_texture != (GLuint)material->texture()->textureId()) {
// TODO: Does setTextureId frees the prev texture?
// TODO: I should the given the texture size.
LOG_ERROR(LOG_TAG, "Updating texture to %u!", m_texture);
material = new QSGOpaqueTextureMaterial;
m_sgtexture->setTexture(m_texture, QSize(1920, 1080));
}
}
// Create the vertices and map to texture.
QRectF bounds = boundingRect();
QSGGeometry::TexturedPoint2D* vertices = geometry->vertexDataAsTexturedPoint2D();
vertices[0].set(bounds.x(), bounds.y() + bounds.height(), 0.0f, 0.0f);
vertices[1].set(bounds.x() + bounds.width(), bounds.y() + bounds.height(), 1.0f, 0.0f);
vertices[2].set(bounds.x(), bounds.y(), 0.0f, 1.0f);
vertices[3].set(bounds.x() + bounds.width(), bounds.y(), 1.0f, 1.0f);
return node;
#endif
}
bool OMX_MediaProcessorElement::play()
{
CHECK_MEDIA_PROCESSOR;
return m_mediaProc->play();
}
bool OMX_MediaProcessorElement::stop()
{
CHECK_MEDIA_PROCESSOR;
return m_mediaProc->stop();
}
bool OMX_MediaProcessorElement::pause()
{
CHECK_MEDIA_PROCESSOR;
return m_mediaProc->pause();
}
bool OMX_MediaProcessorElement::seek(long millis)
{
CHECK_MEDIA_PROCESSOR;
return m_mediaProc->seek(millis);
}
long OMX_MediaProcessorElement::currentPosition()
{
CHECK_MEDIA_PROCESSOR;
return m_mediaProc->currentPosition();
}
bool OMX_MediaProcessorElement::openMedia(QString filepath)
{
if (!m_mediaProc || !m_texProvider)
return false;
if (!m_mediaProc->setFilename(filepath, m_textureId))
return false;
emit textureReady(m_textureId);
return true;
}