hls_notifier.h

// Copyright 2016 Google LLC. 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 PACKAGER_HLS_BASE_HLS_NOTIFIER_H_
#define PACKAGER_HLS_BASE_HLS_NOTIFIER_H_
 
#include <cstdint>
#include <string>
#include <vector>
 
#include <packager/hls_params.h>
#include <packager/mpd/base/media_info.pb.h>
 
namespace shaka {
namespace hls {
 
// TODO(rkuroiwa): Consider merging this with MpdNotifier.
class HlsNotifier {
 public:
  explicit HlsNotifier(const HlsParams& hls_params) : hls_params_(hls_params) {}
  virtual ~HlsNotifier() {}
 
  virtual bool Init() = 0;
 
  virtual bool NotifyNewStream(const MediaInfo& media_info,
                               const std::string& playlist_name,
                               const std::string& stream_name,
                               const std::string& group_id,
                               uint32_t* stream_id) = 0;
 
  virtual bool NotifySampleDuration(uint32_t stream_id,
                                    int32_t sample_duration) = 0;
 
  virtual bool NotifyNewSegment(uint32_t stream_id,
                                const std::string& segment_name,
                                int64_t start_time,
                                int64_t duration,
                                uint64_t start_byte_offset,
                                uint64_t size) = 0;
 
  virtual bool NotifyKeyFrame(uint32_t stream_id,
                              int64_t timestamp,
                              uint64_t start_byte_offset,
                              uint64_t size) = 0;
 
  virtual bool NotifyCueEvent(uint32_t stream_id, int64_t timestamp) = 0;
 
  virtual bool NotifyEncryptionUpdate(
      uint32_t stream_id,
      const std::vector<uint8_t>& key_id,
      const std::vector<uint8_t>& system_id,
      const std::vector<uint8_t>& iv,
      const std::vector<uint8_t>& protection_system_specific_data) = 0;
 
  virtual bool Flush() = 0;
 
  const HlsParams& hls_params() const { return hls_params_; }
 
 private:
  const HlsParams hls_params_;
};
 
}  // namespace hls
}  // namespace shaka
 
#endif  // PACKAGER_HLS_BASE_HLS_NOTIFIER_H_