void SnapshotAnimated::processFrames() {
uint32_t width = SnapshotAnimated::snapshotAnimatedFrameVector[0].width();
uint32_t height = SnapshotAnimated::snapshotAnimatedFrameVector[0].height();
// Create the GIF from the temporary files
// Write out the header and beginning of the GIF file
GifBegin(
&(SnapshotAnimated::snapshotAnimatedGifWriter),
qPrintable(SnapshotAnimated::snapshotAnimatedPath),
width,
height,
1); // "1" means "yes there is a delay" with this GifCreator library.
for (int itr = 0; itr < SnapshotAnimated::snapshotAnimatedFrameVector.size(); itr++) {
// Write each frame to the GIF
GifWriteFrame(&(SnapshotAnimated::snapshotAnimatedGifWriter),
(uint8_t*)SnapshotAnimated::snapshotAnimatedFrameVector[itr].convertToFormat(QImage::Format_RGBA8888).bits(),
width,
height,
SnapshotAnimated::snapshotAnimatedFrameDelayVector[itr]);
}
// Write out the end of the GIF
GifEnd(&(SnapshotAnimated::snapshotAnimatedGifWriter));
// Clear out the frame and frame delay vectors.
// Also release the memory not required to store the items.
SnapshotAnimated::snapshotAnimatedFrameVector.clear();
SnapshotAnimated::snapshotAnimatedFrameVector.squeeze();
SnapshotAnimated::snapshotAnimatedFrameDelayVector.clear();
SnapshotAnimated::snapshotAnimatedFrameDelayVector.squeeze();
// Let the dependency manager know that the snapshots have been taken.
emit SnapshotAnimated::snapshotAnimatedDM->snapshotTaken(SnapshotAnimated::snapshotStillPath, SnapshotAnimated::snapshotAnimatedPath, false);
}
bool gif_stop_recording(void) {
std::lock_guard<std::mutex> lock(gif_mutex);
bool wasRecording = recording;
recording = false;
return wasRecording && GifEnd(&writer);
}
bool
GIFOutput::close()
{
if (m_pending_write) {
finish_subimage();
GifEnd(&m_gifwriter);
}
init();
return true;
}
void gif_new_frame() {
std::lock_guard<std::mutex> lock(gif_mutex);
if (!recording || (++frame % (frameskip + 1))) {
return;
}
int lastGifTime = gifTime;
gifTime = (frame * 100 + 32) / 64;
if (!gif_write_frame(&writer, gifTime - lastGifTime)) {
recording = false;
GifEnd(&writer);
}
}
void GifSaver::save()
{
std::vector< uint8_t* > bufferVector;
GifWriter gifWriter;
GifBegin( &gifWriter, _outputFilePath.toStdString().c_str(),
_inputAnimatedGif[ 0 ]->getWidth() * _scaleFactor,
_inputAnimatedGif[ 0 ]->getHeight() * _scaleFactor,
10 );
int i = 0;
for( const auto& frame : _inputAnimatedGif )
{
_filter->setNewInputImage( frame );
_filter->apply();
Image* outputFrame = new Image( new QImage( *( _filter->getOutputImage()->getQImage() ) ) );
const int rgbaSize = 4;
uint8_t* outputFrameBuffer = new uint8_t[ outputFrame->getWidth() * outputFrame->getHeight() * rgbaSize ];
outputFrame->getBufferRGBA8( outputFrameBuffer );
bufferVector.push_back( outputFrameBuffer );
GifWriteFrame( &gifWriter,
outputFrameBuffer,
outputFrame->getWidth(),
outputFrame->getHeight(), 10 );
delete outputFrame;
delete[] outputFrameBuffer;
emit setProgress( ( float ) i++ * 100 / _inputAnimatedGif.size() );
}
GifEnd( &gifWriter );
}
bool gif_single_frame(const char *filename) {
GifWriter frameWriter;
return GifBegin(&frameWriter, filename, 320, 240, 0) && gif_write_frame(&frameWriter, 0) && GifEnd(&frameWriter);
}