Support HLS MPEG2 TS with SAMPLE-AES encryption.

media/formats/mp2t/ts_section_cets_pssh.h

Index: media/formats/mp2t/ts_section_cets_pssh.h
diff --git a/media/formats/mp2t/ts_section_cets_pssh.h b/media/formats/mp2t/ts_section_cets_pssh.h
new file mode 100644
index 0000000000000000000000000000000000000000..102f8cdbe28f9c50084913797efeb4589e1792c8
--- /dev/null
+++ b/media/formats/mp2t/ts_section_cets_pssh.h
@@ -0,0 +1,44 @@
+// 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_PSSH_H_
+#define MEDIA_FORMATS_MP2T_TS_SECTION_CETS_PSSH_H_
+
+#include <stdint.h>
+#include <vector>
+
+#include "base/callback.h"
+#include "base/macros.h"
+#include "media/base/byte_queue.h"
+#include "media/formats/mp2t/ts_section.h"
+
+namespace media {
+
+class BitReader;
+
+namespace mp2t {
+
+class TsSectionCetsPssh : public TsSection {
+ public:
+  using RegisterPsshBoxesCb = base::Callback<void(const std::vector<uint8_t>&)>;
+  explicit TsSectionCetsPssh(const RegisterPsshBoxesCb& register_pssh_boxes_cb);
+  ~TsSectionCetsPssh() override;
+
+  // TsSection implementation.
+  bool Parse(bool payload_unit_start_indicator,
+             const uint8_t* buf,
+             int size) override;
+  void Flush() override;
+  void Reset() override;
+
+ private:
+  RegisterPsshBoxesCb register_pssh_boxes_cb_;
+
+  DISALLOW_COPY_AND_ASSIGN(TsSectionCetsPssh);
+};
+
+}  // namespace mp2t
+}  // namespace media
+
+#endif