VideoFrame VideoDecoderFFmpegHW::copyToFrame(const VideoFormat& fmt, int surface_h, quint8 *src[], int pitch[], bool swapUV)
{
DPTR_D(VideoDecoderFFmpegHW);
Q_ASSERT_X(src[0] && pitch[0] > 0, "VideoDecoderFFmpegHW::copyToFrame", "src[0] and pitch[0] must be set");
const int nb_planes = fmt.planeCount();
const int chroma_pitch = nb_planes > 1 ? fmt.bytesPerLine(pitch[0], 1) : 0;
const int chroma_h = fmt.chromaHeight(surface_h);
int h[] = { surface_h, 0, 0};
for (int i = 1; i < nb_planes; ++i) {
h[i] = chroma_h;
// set chroma address and pitch if not set
if (pitch[i] <= 0)
pitch[i] = chroma_pitch;
if (!src[i])
src[i] = src[i-1] + pitch[i-1]*h[i-1];
}
if (swapUV) {
std::swap(src[1], src[2]);
std::swap(pitch[1], pitch[2]);
}
VideoFrame frame;
if (copyMode() == VideoDecoderFFmpegHW::OptimizedCopy && d.gpu_mem.isReady()) {
int yuv_size = 0;
for (int i = 0; i < nb_planes; ++i) {
yuv_size += pitch[i]*h[i];
}
// additional 15 bytes to ensure 16 bytes aligned
QByteArray buf(15 + yuv_size, 0);
const int offset_16 = (16 - ((uintptr_t)buf.data() & 0x0f)) & 0x0f;
// plane 1, 2... is aligned?
uchar* plane_ptr = (uchar*)buf.data() + offset_16;
QVector<uchar*> dst(nb_planes, 0);
for (int i = 0; i < nb_planes; ++i) {
dst[i] = plane_ptr;
// TODO: add VideoFormat::planeWidth/Height() ?
// pitch instead of surface_width
plane_ptr += pitch[i] * h[i];
d.gpu_mem.copyFrame(src[i], dst[i], pitch[i], h[i], pitch[i]);
}
frame = VideoFrame(buf, width(), height(), fmt);
frame.setBits(dst);
frame.setBytesPerLine(pitch);
} else {
frame = VideoFrame(width(), height(), fmt);
frame.setBits(src);
frame.setBytesPerLine(pitch);
// TODO: why clone is faster()?
// TODO: buffer pool and create VideoFrame when needed to avoid copy? also for other va
frame = frame.clone();
}
frame.setTimestamp(double(d.frame->pkt_pts)/1000.0);
frame.setDisplayAspectRatio(d.getDAR(d.frame));
d.updateColorDetails(&frame);
return frame;
}
VideoFrame VideoFrame::to(const VideoFormat &fmt, const QSize& dstSize, const QRectF& roi) const
{
if (!isValid() || !constBits(0)) {// hw surface. map to host. only supports rgb packed formats now
Q_D(const VideoFrame);
const QVariant v = d->metadata.value(QStringLiteral("surface_interop"));
if (!v.isValid())
return VideoFrame();
VideoSurfaceInteropPtr si = v.value<VideoSurfaceInteropPtr>();
if (!si)
return VideoFrame();
VideoFrame f;
f.setDisplayAspectRatio(displayAspectRatio());
f.setTimestamp(timestamp());
if (si->map(HostMemorySurface, fmt, &f)) {
if ((!dstSize.isValid() ||dstSize == QSize(width(), height())) && (!roi.isValid() || roi == QRectF(0, 0, width(), height()))) //roi is not supported now
return f;
return f.to(fmt, dstSize, roi);
}
return VideoFrame();
}
const int w = dstSize.width() > 0 ? dstSize.width() : width();
const int h = dstSize.height() > 0 ? dstSize.height() : height();
if (fmt.pixelFormatFFmpeg() == pixelFormatFFmpeg()
&& w == width() && h == height()
// TODO: roi check.
)
return *this;
Q_D(const VideoFrame);
ImageConverterSWS conv;
conv.setInFormat(pixelFormatFFmpeg());
conv.setOutFormat(fmt.pixelFormatFFmpeg());
conv.setInSize(width(), height());
conv.setOutSize(w, h);
conv.setInRange(colorRange());
if (!conv.convert(d->planes.constData(), d->line_sizes.constData())) {
qWarning() << "VideoFrame::to error: " << format() << "=>" << fmt;
return VideoFrame();
}
VideoFrame f(w, h, fmt, conv.outData());
f.setBits(conv.outPlanes());
f.setBytesPerLine(conv.outLineSizes());
if (fmt.isRGB()) {
f.setColorSpace(fmt.isPlanar() ? ColorSpace_GBR : ColorSpace_RGB);
} else {
f.setColorSpace(ColorSpace_Unknown);
}
// TODO: color range
f.setTimestamp(timestamp());
f.setDisplayAspectRatio(displayAspectRatio());
f.d_ptr->metadata = d->metadata; // need metadata?
return f;
}
