ts_section_pes.h

// Copyright 2014 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 PACKAGER_MEDIA_FORMATS_MP2T_TS_SECTION_PES_H_
#define PACKAGER_MEDIA_FORMATS_MP2T_TS_SECTION_PES_H_
 
#include <cstdint>
#include <memory>
 
#include <packager/macros/classes.h>
#include <packager/media/base/byte_queue.h>
#include <packager/media/formats/mp2t/ts_section.h>
 
namespace shaka {
namespace media {
namespace mp2t {
 
class EsParser;
 
class TsSectionPes : public TsSection {
 public:
  explicit TsSectionPes(std::unique_ptr<EsParser> es_parser);
  ~TsSectionPes() override;
 
  // TsSection implementation.
  bool Parse(bool payload_unit_start_indicator,
             const uint8_t* buf,
             int size) override;
  bool Flush() override;
  void Reset() override;
 
 private:
  // Emit a reassembled PES packet.
  // Return true if successful.
  // |emit_for_unknown_size| is used to force emission for PES packets
  // whose size is unknown.
  bool Emit(bool emit_for_unknown_size);
 
  // Parse a PES packet, return true if successful.
  bool ParseInternal(const uint8_t* raw_pes, int raw_pes_size);
 
  void ResetPesState();
 
  // Bytes of the current PES.
  ByteQueue pes_byte_queue_;
 
  // ES parser.
  std::unique_ptr<EsParser> es_parser_;
 
  // Do not start parsing before getting a unit start indicator.
  bool wait_for_pusi_;
 
  // Used to unroll PTS and DTS.
  bool previous_pts_valid_;
  int64_t previous_pts_;
  bool previous_dts_valid_;
  int64_t previous_dts_;
 
  DISALLOW_COPY_AND_ASSIGN(TsSectionPes);
};
 
}  // namespace mp2t
}  // namespace media
}  // namespace shaka
 
#endif