本文整理汇总了C++中NotNull::Iterator方法的典型用法代码示例。如果您正苦于以下问题：C++ NotNull::Iterator方法的具体用法？C++ NotNull::Iterator怎么用？C++ NotNull::Iterator使用的例子？那么, 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NotNull的用法示例。
在下文中一共展示了NotNull::Iterator方法的2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: GetDecoder
/* static */ already_AddRefed<IDecodingTask>
DecoderFactory::CreateMetadataDecoder(DecoderType aType,
NotNull<RasterImage*> aImage,
NotNull<SourceBuffer*> aSourceBuffer,
int aSampleSize)
{
if (aType == DecoderType::UNKNOWN) {
return nullptr;
}
RefPtr<Decoder> decoder =
GetDecoder(aType, aImage, /* aIsRedecode = */ false);
MOZ_ASSERT(decoder, "Should have a decoder now");
// Initialize the decoder.
decoder->SetMetadataDecode(true);
decoder->SetIterator(aSourceBuffer->Iterator());
decoder->SetSampleSize(aSampleSize);
decoder->Init();
if (NS_FAILED(decoder->GetDecoderError())) {
return nullptr;
}
RefPtr<IDecodingTask> task = new MetadataDecodingTask(WrapNotNull(decoder));
return task.forget();
}示例2: GetDecoder
/* static */ already_AddRefed<IDecodingTask>
DecoderFactory::CreateDecoder(DecoderType aType,
NotNull<RasterImage*> aImage,
NotNull<SourceBuffer*> aSourceBuffer,
const IntSize& aIntrinsicSize,
const IntSize& aOutputSize,
DecoderFlags aDecoderFlags,
SurfaceFlags aSurfaceFlags)
{
if (aType == DecoderType::UNKNOWN) {
return nullptr;
}
// Create an anonymous decoder. Interaction with the SurfaceCache and the
// owning RasterImage will be mediated by DecodedSurfaceProvider.
RefPtr<Decoder> decoder =
GetDecoder(aType, nullptr, bool(aDecoderFlags & DecoderFlags::IS_REDECODE));
MOZ_ASSERT(decoder, "Should have a decoder now");
// Initialize the decoder.
decoder->SetMetadataDecode(false);
decoder->SetIterator(aSourceBuffer->Iterator());
decoder->SetOutputSize(aOutputSize);
decoder->SetDecoderFlags(aDecoderFlags | DecoderFlags::FIRST_FRAME_ONLY);
decoder->SetSurfaceFlags(aSurfaceFlags);
if (NS_FAILED(decoder->Init())) {
return nullptr;
}
// Create a DecodedSurfaceProvider which will manage the decoding process and
// make this decoder's output available in the surface cache.
SurfaceKey surfaceKey =
RasterSurfaceKey(aOutputSize, aSurfaceFlags, PlaybackType::eStatic);
auto provider = MakeNotNull<RefPtr<DecodedSurfaceProvider>>(
aImage, surfaceKey, WrapNotNull(decoder));
if (aDecoderFlags & DecoderFlags::CANNOT_SUBSTITUTE) {
provider->Availability().SetCannotSubstitute();
}
// Attempt to insert the surface provider into the surface cache right away so
// we won't trigger any more decoders with the same parameters.
if (SurfaceCache::Insert(provider) != InsertOutcome::SUCCESS) {
return nullptr;
}
// Return the surface provider in its IDecodingTask guise.
RefPtr<IDecodingTask> task = provider.get();
return task.forget();
}