QByteArray Frame::data(int plane) const
{
if (plane < 0 || plane >= planeCount()) {
qWarning("Invalid plane! Valid range is [0, %d)", planeCount());
return QByteArray();
}
return QByteArray((char*)d_func()->planes[plane], bytesPerLine(plane));
}
const uchar* Frame::bits(int plane) const
{
if (plane < 0 || plane >= planeCount()) {
qWarning("Invalid plane! Valid range is [0, %d)", planeCount());
return 0;
}
return d_func()->planes[plane];
}
int Frame::bytesPerLine(int plane) const
{
if (plane < 0 || plane >= planeCount()) {
qWarning("Invalid plane! Valid range is [0, %d)", planeCount());
return 0;
}
return d_func()->line_sizes[plane];
}
void* VideoFrame::createInteropHandle(void* handle, SurfaceType type, int plane)
{
Q_D(VideoFrame);
const QVariant v = d->metadata.value(QStringLiteral("surface_interop"));
if (!v.isValid())
return 0;
d->surface_interop = v.value<VideoSurfaceInteropPtr>();
if (!d->surface_interop)
return 0;
if (plane > planeCount())
return 0;
return d->surface_interop->createHandle(handle, type, format(), plane, planeWidth(plane), planeHeight(plane));
}
void *VideoFrame::map(SurfaceType type, void *handle, int plane)
{
Q_D(VideoFrame);
const QVariant v = d->metadata.value(QStringLiteral("surface_interop"));
if (!v.isValid())
return 0;
d->surface_interop = v.value<VideoSurfaceInteropPtr>();
if (!d->surface_interop)
return 0;
if (plane > planeCount())
return 0;
return d->surface_interop->map(type, format(), handle, plane);
}
AudioFrame AudioFrame::clone() const
{
Q_D(const AudioFrame);
if (d->format.sampleFormatFFmpeg() == AV_SAMPLE_FMT_NONE
|| d->format.channels() <= 0)
return AudioFrame();
if (d->samples_per_ch <= 0 || bytesPerLine(0) <= 0)
return AudioFrame(format());
QByteArray buf(bytesPerLine()*planeCount(), 0);
AudioFrame f(buf, d->format);
f.setSamplesPerChannel(samplesPerChannel());
char *dst = buf.data(); //must before buf is shared, otherwise data will be detached.
for (int i = 0; i < f.planeCount(); ++i) {
const int plane_size = f.bytesPerLine(i);
memcpy(dst, f.constBits(i), plane_size);
dst += plane_size;
}
f.setTimestamp(timestamp());
// meta data?
return f;
}
void Frame::setBits(quint8 *slice[])
{
for (int i = 0; i < planeCount(); ++i ) {
setBits(slice[i], i);
}
}
void Frame::setBytesPerLine(int stride[])
{
for (int i = 0; i < planeCount(); ++i ) {
setBytesPerLine(stride[i], i);
}
}