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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_FORMATS_MP2T_TS_SECTION_CETS_ECM_H_
#define MEDIA_FORMATS_MP2T_TS_SECTION_CETS_ECM_H_
#include <stdint.h>
#include <string>
#include "base/callback.h"
#include "base/macros.h"
#include "media/formats/mp2t/ts_section.h"
namespace media {
namespace mp2t {
class TsSectionCetsEcm : public TsSection {
public:
// RegisterNewKeyIdAndIvCB() may be called multiple times. From
// ISO/IEC 23001-9:2016, section 7.2: "Key/IV information for every
// encrypted PID should be carried in a separate ECM PID." So there may be
// ECM's for each audio and video stream (and more if key rotation is used).
using RegisterNewKeyIdAndIvCB =
base::RepeatingCallback<void(const std::string& key_id,
const std::string& iv)>;
explicit TsSectionCetsEcm(
const RegisterNewKeyIdAndIvCB& register_new_key_id_and_iv_cb);
TsSectionCetsEcm(const TsSectionCetsEcm&) = delete;
TsSectionCetsEcm& operator=(const TsSectionCetsEcm&) = delete;
~TsSectionCetsEcm() override;
// TsSection implementation.
bool Parse(bool payload_unit_start_indicator,
const uint8_t* buf,
int size) override;
void Flush() override;
void Reset() override;
private:
RegisterNewKeyIdAndIvCB register_new_key_id_and_iv_cb_;
};
} // namespace mp2t
} // namespace media
#endif // MEDIA_FORMATS_MP2T_TS_SECTION_CETS_ECM_H_
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