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Diffstat (limited to 'media/libstagefright/include/ThrottledSource.h')
-rw-r--r-- | media/libstagefright/include/ThrottledSource.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/media/libstagefright/include/ThrottledSource.h b/media/libstagefright/include/ThrottledSource.h new file mode 100644 index 0000000..88164b3 --- /dev/null +++ b/media/libstagefright/include/ThrottledSource.h @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2010 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef THROTTLED_SOURCE_H_ + +#define THROTTLED_SOURCE_H_ + +#include <media/stagefright/DataSource.h> +#include <utils/threads.h> + +namespace android { + +struct ThrottledSource : public DataSource { + ThrottledSource( + const sp<DataSource> &source, + int32_t bandwidthLimitBytesPerSecond); + + virtual status_t initCheck() const; + + virtual ssize_t readAt(off_t offset, void *data, size_t size); + + virtual status_t getSize(off_t *size); + virtual uint32_t flags(); + +private: + Mutex mLock; + + sp<DataSource> mSource; + int32_t mBandwidthLimitBytesPerSecond; + int64_t mStartTimeUs; + size_t mTotalTransferred; + + ThrottledSource(const ThrottledSource &); + ThrottledSource &operator=(const ThrottledSource &); +}; + +} // namespace android + +#endif // THROTTLED_SOURCE_H_ |