本文整理汇总了C++中VideoFrame::copyFlattened方法的典型用法代码示例。如果您正苦于以下问题：C++ VideoFrame::copyFlattened方法的具体用法？C++ VideoFrame::copyFlattened怎么用？C++ VideoFrame::copyFlattened使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类VideoFrame的用法示例。
在下文中一共展示了VideoFrame::copyFlattened方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: lock
sp<IMemory> MetadataRetrieverClient::getFrameAtTime(
int64_t timeUs, int option, int colorFormat, bool metaOnly)
{
ALOGV("getFrameAtTime: time(%lld us) option(%d) colorFormat(%d), metaOnly(%d)",
(long long)timeUs, option, colorFormat, metaOnly);
Mutex::Autolock lock(mLock);
Mutex::Autolock glock(sLock);
mThumbnail.clear();
if (mRetriever == NULL) {
ALOGE("retriever is not initialized");
return NULL;
}
VideoFrame *frame = mRetriever->getFrameAtTime(
timeUs, option, colorFormat, metaOnly);
if (frame == NULL) {
ALOGE("failed to capture a video frame");
return NULL;
}
size_t size = frame->getFlattenedSize();
sp<MemoryHeapBase> heap = new MemoryHeapBase(size, 0, "MetadataRetrieverClient");
if (heap == NULL) {
ALOGE("failed to create MemoryDealer");
delete frame;
return NULL;
}
mThumbnail = new MemoryBase(heap, 0, size);
if (mThumbnail == NULL) {
ALOGE("not enough memory for VideoFrame size=%zu", size);
delete frame;
return NULL;
}
VideoFrame *frameCopy = static_cast<VideoFrame *>(mThumbnail->pointer());
frameCopy->copyFlattened(*frame);
delete frame; // Fix memory leakage
return mThumbnail;
}