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/*
* Copyright (C) 2009 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 ESDS_H_
#define ESDS_H_
#include <stdint.h>
#include <media/stagefright/MediaErrors.h>
namespace android {
class ESDS {
public:
ESDS(const void *data, size_t size);
~ESDS();
status_t InitCheck() const;
status_t getObjectTypeIndication(uint8_t *objectTypeIndication) const;
status_t getCodecSpecificInfo(const void **data, size_t *size) const;
status_t getCodecSpecificOffset(size_t *offset, size_t *size) const;
status_t getBitRate(uint32_t *brateMax, uint32_t *brateAvg) const;
status_t getStreamType(uint8_t *streamType) const;
private:
enum {
kTag_ESDescriptor = 0x03,
kTag_DecoderConfigDescriptor = 0x04,
kTag_DecoderSpecificInfo = 0x05
};
uint8_t *mData;
size_t mSize;
status_t mInitCheck;
size_t mDecoderSpecificOffset;
size_t mDecoderSpecificLength;
uint8_t mObjectTypeIndication;
uint8_t mStreamType;
uint32_t mBitRateMax;
uint32_t mBitRateAvg;
status_t skipDescriptorHeader(
size_t offset, size_t size,
uint8_t *tag, size_t *data_offset, size_t *data_size) const;
status_t parse();
status_t parseESDescriptor(size_t offset, size_t size);
status_t parseDecoderConfigDescriptor(size_t offset, size_t size);
ESDS(const ESDS &);
ESDS &operator=(const ESDS &);
};
} // namespace android
#endif // ESDS_H_
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