mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-15 16:06:41 +03:00
Joey Parrish
38ce45dce5
Cleanup imported from an internal Google migration process, courtesy of Laura Harker. Change-Id: I11de518eafe6008938589e5250bdcaf8151267e9
52 lines
1.4 KiB
JavaScript
52 lines
1.4 KiB
JavaScript
/*! @license
|
|
* Shaka Player
|
|
* Copyright 2016 Google LLC
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
goog.provide('shaka.cea.ICaptionDecoder');
|
|
|
|
goog.require('shaka.text.Cue');
|
|
|
|
|
|
/**
|
|
* Interface for decoding inband closed captions from packets.
|
|
* @interface
|
|
*/
|
|
shaka.cea.ICaptionDecoder = class {
|
|
/**
|
|
* Extracts packets and prepares them for decoding. In a given media fragment,
|
|
* all the caption packets found in its SEI messages should be extracted by
|
|
* successive calls to extract(), followed by a single call to decode().
|
|
*
|
|
* @param {!Uint8Array} userDataSeiMessage
|
|
* This is a User Data registered by Rec.ITU-T T.35 SEI message.
|
|
* It is described in sections D.1.6 and D.2.6 of Rec. ITU-T H.264 (06/2019).
|
|
* @param {number} pts PTS when this packet was received, in seconds.
|
|
*/
|
|
extract(userDataSeiMessage, pts) {}
|
|
|
|
/**
|
|
* Decodes all currently extracted packets and then clears them.
|
|
* This should be called once for a set of extracts (see comment on extract).
|
|
* @return {!Array.<!shaka.cea.ICaptionDecoder.ClosedCaption>}
|
|
*/
|
|
decode() {}
|
|
|
|
/**
|
|
* Clears the decoder state completely.
|
|
* Should be used when an action renders the decoder state invalid,
|
|
* e.g. unbuffered seeks.
|
|
*/
|
|
clear() {}
|
|
};
|
|
|
|
/**
|
|
* Parsed Cue.
|
|
* @typedef {{
|
|
* cue: !shaka.text.Cue,
|
|
* stream: string
|
|
* }}
|
|
*/
|
|
shaka.cea.ICaptionDecoder.ClosedCaption;
|