const size_t kMaxBufferSize = 50 * 1024 * 1024; // Arbitrary maximum of 50MB.
+typedef base::Callback<void(const scoped_refptr<net::DrainableIOBuffer>&)>
+ GotImageCallback;
+
void FinishGetImageBytes(
- net::DrainableIOBuffer* buffer,
+ const scoped_refptr<net::DrainableIOBuffer>& buffer,
media::DataSource* source,
- const base::Callback<void(net::DrainableIOBuffer*)>& callback,
+ const GotImageCallback& callback,
int bytes_read) {
if (bytes_read == media::DataSource::kReadError) {
callback.Run(NULL);
buffer->DidConsume(bytes_read);
// Didn't get the whole file. Continue reading to get the rest.
if (buffer->BytesRemaining() > 0) {
- source->Read(0, buffer->BytesRemaining(),
- reinterpret_cast<uint8*>(buffer->data()),
- base::Bind(&FinishGetImageBytes, make_scoped_refptr(buffer),
- base::Unretained(source), callback));
+ source->Read(
+ 0,
+ buffer->BytesRemaining(),
+ reinterpret_cast<uint8*>(buffer->data()),
+ base::Bind(
+ &FinishGetImageBytes, buffer, base::Unretained(source), callback));
return;
}
buffer->SetOffset(0);
- callback.Run(make_scoped_refptr(buffer));
+ callback.Run(buffer);
}
void GetImageBytes(
media::DataSource* source,
- const base::Callback<void(net::DrainableIOBuffer*)>& callback) {
+ const GotImageCallback& callback) {
int64 size64 = 0;
if (!source->GetSize(&size64) ||
base::saturated_cast<size_t>(size64) > kMaxBufferSize) {
}
void ImageMetadataExtractor::FinishExtraction(
- const DoneCallback& callback, net::DrainableIOBuffer* buffer) {
- if (!buffer) {
+ const DoneCallback& callback,
+ const scoped_refptr<net::DrainableIOBuffer>& buffer) {
+ if (!buffer.get()) {
callback.Run(false);
return;
}