adts_header.h

// Copyright 2014 Google Inc. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd

#ifndef MEDIA_FORMATS_MP2T_ADTS_HEADER_H_
#define MEDIA_FORMATS_MP2T_ADTS_HEADER_H_

#include <stdint.h>

#include <vector>

#include "packager/base/macros.h"

namespace edash_packager {
namespace media {
namespace mp2t {

class AdtsHeader {
 public:
  AdtsHeader();
  ~AdtsHeader() {}

  static size_t GetAdtsFrameSize(const uint8_t* data, size_t num_bytes);

  static size_t GetAdtsHeaderSize(const uint8_t* data, size_t num_bytes);

  bool Parse(const uint8_t* adts_frame, size_t adts_frame_size);

  bool GetAudioSpecificConfig(std::vector<uint8_t>* buffer) const;

  uint8_t GetObjectType() const;

  uint32_t GetSamplingFrequency() const;

  uint8_t GetNumChannels() const;

 private:
  bool valid_config_;
  uint8_t profile_;
  uint8_t sampling_frequency_index_;
  uint8_t channel_configuration_;

  DISALLOW_COPY_AND_ASSIGN(AdtsHeader);
};

}  // namespace mp2t
}  // namespace media
}  // namespace edash_packager

#endif  // MEDIA_FORMATS_MP2T_ADTS_HEADER_H_