VideoFrame VideoFrameConverter::convert(const VideoFrame &frame, int fffmt) const
{
if (!frame.isValid() || fffmt == QTAV_PIX_FMT_C(NONE))
return VideoFrame();
if (!frame.constBits(0)) // hw surface
return frame.to(VideoFormat::pixelFormatFromFFmpeg(fffmt));
const VideoFormat format(frame.format());
//if (fffmt == format.pixelFormatFFmpeg())
// return *this;
if (!m_cvt) {
m_cvt = new ImageConverterSWS();
}
m_cvt->setBrightness(m_eq[0]);
m_cvt->setContrast(m_eq[1]);
m_cvt->setSaturation(m_eq[2]);
m_cvt->setInFormat(format.pixelFormatFFmpeg());
m_cvt->setOutFormat(fffmt);
m_cvt->setInSize(frame.width(), frame.height());
m_cvt->setOutSize(frame.width(), frame.height());
m_cvt->setInRange(frame.colorRange());
const int pal = format.hasPalette();
QVector<const uchar*> pitch(format.planeCount() + pal);
QVector<int> stride(format.planeCount() + pal);
for (int i = 0; i < format.planeCount(); ++i) {
pitch[i] = frame.constBits(i);
stride[i] = frame.bytesPerLine(i);
}
const QByteArray paldata(frame.metaData(QStringLiteral("pallete")).toByteArray());
if (pal > 0) {
pitch[1] = (const uchar*)paldata.constData();
stride[1] = paldata.size();
}
if (!m_cvt->convert(pitch.constData(), stride.constData())) {
return VideoFrame();
}
const VideoFormat fmt(fffmt);
VideoFrame f(frame.width(), frame.height(), fmt, m_cvt->outData());
f.setBits(m_cvt->outPlanes());
f.setBytesPerLine(m_cvt->outLineSizes());
f.setTimestamp(frame.timestamp());
f.setDisplayAspectRatio(frame.displayAspectRatio());
// metadata?
if (fmt.isRGB()) {
f.setColorSpace(fmt.isPlanar() ? ColorSpace_GBR : ColorSpace_RGB);
} else {
f.setColorSpace(ColorSpace_Unknown);
}
// TODO: color range
return f;
}
