shaka-packager/packager/hls/public/hls_params.h

54 lines
2.0 KiB
C++

// Copyright 2017 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 PACKAGER_HLS_PUBLIC_HLS_PARAMS_H_
#define PACKAGER_HLS_PUBLIC_HLS_PARAMS_H_
#include <string>
namespace shaka {
/// Defines the EXT-X-PLAYLIST-TYPE in the HLS specification. For
/// HlsPlaylistType of kLive, EXT-X-PLAYLIST-TYPE tag is omitted.
enum class HlsPlaylistType {
kVod,
kEvent,
kLive,
};
/// HLS related parameters.
struct HlsParams {
/// HLS playlist type. See HLS specification for details.
HlsPlaylistType playlist_type = HlsPlaylistType::kVod;
/// HLS master playlist output path.
std::string master_playlist_output;
/// The base URL for the Media Playlists and media files listed in the
/// playlists. This is the prefix for the files.
std::string base_url;
/// Defines the live window, or the guaranteed duration of the time shifting
/// buffer for 'live' playlists.
double time_shift_buffer_depth = 0;
/// Segments outside the live window (defined by 'time_shift_buffer_depth'
/// above) are automatically removed except for the most recent X segments
/// defined by this parameter. This is needed to accommodate latencies in
/// various stages of content serving pipeline, so that the segments stay
/// accessible as they may still be accessed by the player. The segments are
/// not removed if the value is zero.
size_t preserved_segments_outside_live_window = 0;
/// Defines the key uri for "identity" and "com.apple.streamingkeydelivery"
/// key formats. Ignored if the playlist is not encrypted or not using the
/// above key formats.
std::string key_uri;
/// The renditions tagged with this language will have 'DEFAULT' set to 'YES'
/// in 'EXT-X-MEDIA' tag. This allows the player to choose the correct default
/// language for the content.
std::string default_language;
};
} // namespace shaka
#endif // PACKAGER_HLS_PUBLIC_HLS_PARAMS_H_