有循序追蹤的即時主要內容

情境

此情境中，一個沒有廣告的即時資產在加入即時資料流後播放了 40 秒。

此情境與沒有廣告的 VOD 播放情境相同，只是一部分內容遭到擦除，而且從主要內容中的某個時間點到另一個時間點期間，已完成搜尋作業。

參數

心率內容開始

心率內容播放

這應該看起來大多與心率內容開始呼叫完全相同，但主要的差異在於「s:event:type」參數。所有參數應該依然不受影響。

內容心率

在媒體播放期間，對於主要內容，計時器將每隔 10 秒傳送一或多個心率；對於廣告，則為每隔一秒。這些心率將包含播放、廣告、緩衝和其他部分項目的相關資訊。每個心率的確切內容不在本文件的討論範圍，這裡要確認的重點在於，繼續播放能否會一致觸發心率。

在內容心率中，尋找幾個特定項目：

心率內容完成

任何集數播放完成時 (播放點越過各集之間的界限)，就會傳送「心率內容完成」呼叫。這類似其他 Heartbeat 呼叫，但將包含某些特定項目：

程式碼範例

Android

以下是預期的 API 呼叫順序：

// Set up mediaObject
MediaObject mediaInfo = MediaHeartbeat.createMediaObject(
  Configuration.MEDIA_NAME,
  Configuration.MEDIA_ID,
  Configuration.MEDIA_LENGTH,
  MediaHeartbeat.StreamType.LIVE
);

HashMap<String, String> mediaMetadata = new HashMap<String, String>();
mediaMetadata.put(CUSTOM_VAL_1, CUSTOM_KEY_1);
mediaMetadata.put(CUSTOM_VAL_2, CUSTOM_KEY_2);

// 1. Call trackSessionStart() when the user clicks Play or if autoplay is used,
//    i.e., when there is an intent to start playback.
_mediaHeartbeat.trackSessionStart(mediaInfo, mediaMetadata);

......
......

// 2. Call trackPlay() when the playback actually starts, i.e., when the first
//    frame of main content is rendered on the screen.
_mediaHeartbeat.trackPlay();

.......
.......

// 3. Call trackComplete() when the playback reaches the end of session,
//    i.e., when the media completes and finishes playing 1st episode/session.
_mediaHeartbeat.trackComplete();

........
........

// 4. Call trackSessionEnd() to end session 1
_mediaHeartbeat.trackSessionEnd();

........
........

// Start tracking session 2 /episode 2 of the same live stream.
// There is no need to reinstantiate a mediaHeartbeat instance for tracking sesison 2.
// Set up mediaObject
MediaObject mediaInfo = MediaHeartbeat.createMediaObject(
  Configuration.MEDIA_NAME,
  Configuration.MEDIA_ID,
  Configuration.MEDIA_LENGTH,
  MediaHeartbeat.StreamType.LIVE
);

HashMap<String, String> mediaMetadata = new HashMap<String, String>();
mediaMetadata.put(CUSTOM_VAL_1, CUSTOM_KEY_1);
mediaMetadata.put(CUSTOM_VAL_2, CUSTOM_KEY_2);

// 5. Call trackSessionStart() when the playhead reaches a point that denotes the
//    start of session 2
_mediaHeartbeat.trackSessionStart(mediaInfo, mediaMetadata);

......
......

// 6. Call trackPlay() to start tracking session 2 playback
_mediaHeartbeat.trackPlay();

.......
.......

// 7. Call trackComplete() when the playback reaches the end of session 2,
//    i.e., the media completes and finishes playing.
_mediaHeartbeat.trackComplete();

........
........

// 8. Call trackSessionEnd() to end session 2
_mediaHeartbeat.trackSessionEnd();

........
........

// Continue similarly tracking further sessions in the live stream if required

iOS

以下是預期的 API 呼叫順序：

// Set up mediaObject
ADBMediaObject *mediaObject =
[ADBMediaHeartbeat createMediaObjectWithName:MEDIA_NAME
                   length:MEDIA_LENGTH
                   streamType:ADBMediaHeartbeatStreamTypeLIVE];

NSMutableDictionary *mediaContextData = [[NSMutableDictionary alloc] init];
[mediaContextData setObject:CUSTOM_VAL_1 forKey:CUSTOM_KEY_1];
[mediaContextData setObject:CUSTOM_VAL_2 forKey:CUSTOM_KEY_2];

// 1. Call trackSessionStart when the user clicks Play or if autoplay is used,
//    i.e., there is an intent to start playback.
[_mediaHeartbeat trackSessionStart:mediaObject data:mediaContextData];
......
......

// 2. Call trackPlay when the playback actually starts, i.e., when the first
//    frame of main content is rendered on the screen.
[_mediaHeartbeat trackPlay];
.......
.......

// 3. Call trackComplete when the playback reaches the end of session,
//    i.e., when the media completes and finishes playing the first
//    episode/session.
[_mediaHeartbeat trackComplete];
.......
.......

// 4. Call trackSessionEnd to end session 1
[_mediaHeartbeat trackSessionEnd];
........
........

// Start tracking session 2 / episode 2 of the same live stream, No need to
// reinstantiate mediaHeartbeat instance for tracking sesison 2.

// Set up mediaObject
ADBMediaObject *mediaObject =
[ADBMediaHeartbeat createMediaObjectWithName:MEDIA_NAME
                   length:MEDIA_LENGTH
                   streamType:ADBMediaHeartbeatStreamTypeLIVE];

NSMutableDictionary *mediaContextData = [[NSMutableDictionary alloc] init];
[mediaContextData setObject:CUSTOM_VAL_1 forKey:CUSTOM_KEY_1];
[mediaContextData setObject:CUSTOM_VAL_2 forKey:CUSTOM_KEY_2];

// 5. Call trackSessionStart when the playhead reaches a point that denotes
//    start of session 2
[_mediaHeartbeat trackSessionStart:mediaObject data:mediaContextData];
......
......

// 6. Call trackPlay to start tracking session 2 playback
[_mediaHeartbeat trackPlay];
.......
.......

// 7. Call trackComplete when the playback reaches the end of session 2,
//    i.e., when the media completes and finishes playing.
[_mediaHeartbeat trackComplete];
........
........

// 8. Call trackSessionEnd to end the session 2
[_mediaHeartbeat trackSessionEnd];
........
........

// Continue tracking further sessions in live stream similarly if required

JavaScript

以下是預期的 API 呼叫順序：

// Set up mediaObject

var mediaInfo = MediaHeartbeat.createMediaObject(
  Configuration.MEDIA_NAME,
  Configuration.MEDIA_ID,
  Configuration.MEDIA_LENGTH,
  MediaHeartbeat.StreamType.VOD
);

var mediaMetadata = {
  CUSTOM_KEY_1 : CUSTOM_VAL_1,
  CUSTOM_KEY_2 : CUSTOM_VAL_2,
  CUSTOM_KEY_3 : CUSTOM_VAL_3
};

// 1. Call trackSessionStart() when Play is clicked or if autoplay is used,
//    i.e., there's an intent to start playback.
this._mediaHeartbeat.trackSessionStart(mediaInfo, mediaMetadata);

......
......

// 2. Call trackPlay() when the playback actually starts, i.e., when the
//    first frame of media is rendered on the screen.
this._mediaHeartbeat.trackPlay();

.......
.......

// 3. Call trackComplete() when the playback reaches the end of a session,
//    i.e., whn playback completes and finishes playing the 1st episode/session.
this._mediaHeartbeat.trackComplete();

........
........

// 4. Call trackSessionEnd() to end session 1
this._mediaHeartbeat.trackSessionEnd();

........
........

// Start tracking session 2/episode 2 of the same live stream. There is no need
// to reinstantiate a mediaHeartbeat instance for tracking sesison 2.

// Set up mediaObject
var mediaInfo2 = MediaHeartbeat.createMediaObject(
  Configuration.MEDIA_NAME,
  Configuration.MEDIA_ID,
  Configuration.MEDIA_LENGTH,
  MediaHeartbeat.StreamType.LIVE
);

var mediaMetadata2 = {
  CUSTOM_KEY_1 : CUSTOM_VAL_1,
  CUSTOM_KEY_2 : CUSTOM_VAL_2,
  CUSTOM_KEY_3 : CUSTOM_VAL_3
};

// 5. Call trackSessionStart() when the playhead reaches a point that denotes
//    the start of session 2
this._mediaHeartbeat.trackSessionStart(mediaInfo2, mediaMetadata2);

......
......

// 6. Call trackPlay() to start tracking session 2 playback
this._mediaHeartbeat.trackPlay();

.......
.......

// 7. Call trackComplete() when the playback reaches the end of session 2,
//    i.e., playback completes and finishes playing.
this._mediaHeartbeat.trackComplete();

........
........

// 8. Call trackSessionEnd() to end session 2
this._mediaHeartbeat.trackSessionEnd();

........
........

// Continue tracking further sessions in live stream similarly if required