SmoothStreaming
透過集合功能整理內容
你可以依據偏好儲存及分類內容。
ExoPlayer 支援 FMP4 容器格式的 SmoothStreaming。媒體串流必須經過解多工處理,也就是說,影片、音訊和文字必須在 SmoothStreaming 資訊清單中,以不同的 StreamIndex 元素定義。內含的音訊和影片樣本格式也必須支援 (詳情請參閱「樣本格式」一節)。
功能 |
支援 |
留言 |
容器 |
|
|
FMP4 |
是 |
僅限解多工串流 |
隱藏式輔助字幕/字幕 |
|
|
TTML |
是 |
嵌入 FMP4 |
內容保護 |
|
|
PlayReady SL2000 |
是 |
僅 Android TV |
即時播放 |
|
|
一般直播播放 |
是 |
|
通用媒體用戶端資料 (CMCD) |
是 |
整合指南 |
如要播放 SmoothStreaming 串流,您必須依附於 SmoothStreaming 模組。
Kotlin
implementation("androidx.media3:media3-exoplayer-smoothstreaming:1.8.0")
Groovy
implementation "androidx.media3:media3-exoplayer-smoothstreaming:1.8.0"
接著,您可以為 SmoothStreaming 資訊清單 URI 建立 MediaItem
,並傳遞至播放器。
Kotlin
// Create a player instance.
val player = ExoPlayer.Builder(context).build()
// Set the media item to be played.
player.setMediaItem(MediaItem.fromUri(ssUri))
// Prepare the player.
player.prepare()
Java
// Create a player instance.
ExoPlayer player = new ExoPlayer.Builder(context).build();
// Set the media item to be played.
player.setMediaItem(MediaItem.fromUri(ssUri));
// Prepare the player.
player.prepare();
如果 URI 並非以 .ism/Manifest
結尾,您可以將 MimeTypes.APPLICATION_SS
傳遞至 MediaItem.Builder
的 setMimeType
,明確指出內容類型。
ExoPlayer 會自動根據資訊清單中定義的表示法,並考量可用頻寬和裝置功能,調整播放內容。
如需更多自訂選項,您可以建立 SsMediaSource
,並直接傳遞至播放器,而非 MediaItem
。
Kotlin
// Create a data source factory.
val dataSourceFactory: DataSource.Factory = DefaultHttpDataSource.Factory()
// Create a SmoothStreaming media source pointing to a manifest uri.
val mediaSource: MediaSource =
SsMediaSource.Factory(dataSourceFactory).createMediaSource(MediaItem.fromUri(ssUri))
// Create a player instance.
val player = ExoPlayer.Builder(context).build()
// Set the media source to be played.
player.setMediaSource(mediaSource)
// Prepare the player.
player.prepare()
Java
// Create a data source factory.
DataSource.Factory dataSourceFactory = new DefaultHttpDataSource.Factory();
// Create a SmoothStreaming media source pointing to a manifest uri.
MediaSource mediaSource =
new SsMediaSource.Factory(dataSourceFactory).createMediaSource(MediaItem.fromUri(ssUri));
// Create a player instance.
ExoPlayer player = new ExoPlayer.Builder(context).build();
// Set the media source to be played.
player.setMediaSource(mediaSource);
// Prepare the player.
player.prepare();
存取資訊清單
您可以呼叫 Player.getCurrentManifest
擷取目前的資訊清單。
如果是 SmoothStreaming,您應將傳回的物件轉換為 SsManifest
。每當載入資訊清單時,系統也會呼叫 Player.Listener
的 onTimelineChanged
回呼。隨選內容只會發生一次,但直播內容可能會發生多次。下列程式碼片段說明應用程式如何在資訊清單載入時執行某些動作。
Kotlin
player.addListener(
object : Player.Listener {
override fun onTimelineChanged(timeline: Timeline, @TimelineChangeReason reason: Int) {
val manifest = player.currentManifest
if (manifest is SsManifest) {
// Do something with the manifest.
}
}
}
)
Java
player.addListener(
new Player.Listener() {
@Override
public void onTimelineChanged(
Timeline timeline, @Player.TimelineChangeReason int reason) {
Object manifest = player.getCurrentManifest();
if (manifest != null) {
SsManifest ssManifest = (SsManifest) manifest;
// Do something with the manifest.
}
}
});
自訂播放設定
ExoPlayer 提供多種方式,讓您根據應用程式需求調整播放體驗。如需範例,請參閱自訂頁面。
這個頁面中的內容和程式碼範例均受《內容授權》中的授權所規範。Java 與 OpenJDK 是 Oracle 和/或其關係企業的商標或註冊商標。
上次更新時間:2025-08-27 (世界標準時間)。
[null,null,["上次更新時間:2025-08-27 (世界標準時間)。"],[],[],null,["# SmoothStreaming\n\nExoPlayer supports SmoothStreaming with the FMP4 container format. Media streams\nmust be demuxed, meaning that video, audio, and text must be defined in distinct\nStreamIndex elements in the SmoothStreaming manifest. The contained audio and\nvideo sample formats must also be supported (see the\n[sample formats](/media/media3/exoplayer/supported-formats#sample-formats) section for details).\n\n| Feature | Supported | Comments |\n|-------------------------------------|-----------|---------------------------------------------------------|\n| **Containers** | | |\n| FMP4 | YES | Demuxed streams only |\n| **Closed captions/subtitles** | | |\n| TTML | YES | Embedded in FMP4 |\n| **Content protection** | | |\n| PlayReady SL2000 | YES | Android TV only |\n| **Live playback** | | |\n| Regular live playback | YES | |\n| **Common Media Client Data (CMCD)** | YES | [Integration Guide](/guide/topics/media/exoplayer/cmcd) |\n\nUsing MediaItem\n---------------\n\nTo play a SmoothStreaming stream, you need to depend on the SmoothStreaming\nmodule. \n\n### Kotlin\n\n```kotlin\nimplementation(\"androidx.media3:media3-exoplayer-smoothstreaming:1.8.0\")\n```\n\n### Groovy\n\n```groovy\nimplementation \"androidx.media3:media3-exoplayer-smoothstreaming:1.8.0\"\n```\n\nYou can then create a `MediaItem` for a SmoothStreaming manifest URI and pass it\nto the player. \n\n### Kotlin\n\n```kotlin\n// Create a player instance.\nval player = ExoPlayer.Builder(context).build()\n// Set the media item to be played.\nplayer.setMediaItem(MediaItem.fromUri(ssUri))\n// Prepare the player.\nplayer.prepare()\n```\n\n### Java\n\n```java\n// Create a player instance.\nExoPlayer player = new ExoPlayer.Builder(context).build();\n// Set the media item to be played.\nplayer.setMediaItem(MediaItem.fromUri(ssUri));\n// Prepare the player.\nplayer.prepare();\n```\n\n\u003cbr /\u003e\n\nIf your URI doesn't end with `.ism/Manifest`, you can pass\n`MimeTypes.APPLICATION_SS` to `setMimeType` of `MediaItem.Builder` to explicitly\nindicate the type of the content.\n\nExoPlayer will automatically adapt between representations defined in the\nmanifest, taking into account both available bandwidth and device capabilities.\n\nUsing SsMediaSource\n-------------------\n\nFor more customization options, you can create a `SsMediaSource` and pass it\ndirectly to the player instead of a `MediaItem`. \n\n### Kotlin\n\n```kotlin\n// Create a data source factory.\nval dataSourceFactory: DataSource.Factory = DefaultHttpDataSource.Factory()\n// Create a SmoothStreaming media source pointing to a manifest uri.\nval mediaSource: MediaSource =\n SsMediaSource.Factory(dataSourceFactory).createMediaSource(MediaItem.fromUri(ssUri))\n// Create a player instance.\nval player = ExoPlayer.Builder(context).build()\n// Set the media source to be played.\nplayer.setMediaSource(mediaSource)\n// Prepare the player.\nplayer.prepare()\n```\n\n### Java\n\n```java\n// Create a data source factory.\nDataSource.Factory dataSourceFactory = new DefaultHttpDataSource.Factory();\n// Create a SmoothStreaming media source pointing to a manifest uri.\nMediaSource mediaSource =\n new SsMediaSource.Factory(dataSourceFactory).createMediaSource(MediaItem.fromUri(ssUri));\n// Create a player instance.\nExoPlayer player = new ExoPlayer.Builder(context).build();\n// Set the media source to be played.\nplayer.setMediaSource(mediaSource);\n// Prepare the player.\nplayer.prepare();\n```\n\n\u003cbr /\u003e\n\nAccessing the manifest\n----------------------\n\nYou can retrieve the current manifest by calling `Player.getCurrentManifest`.\nFor SmoothStreaming, you should cast the returned object to `SsManifest`. The\n`onTimelineChanged` callback of `Player.Listener` is also called whenever\nthe manifest is loaded. This will happen once for on-demand content and\npossibly many times for live content. The following code snippet shows how an app\ncan do something whenever the manifest is loaded. \n\n### Kotlin\n\n```kotlin\nplayer.addListener(\n object : Player.Listener {\n override fun onTimelineChanged(timeline: Timeline, @TimelineChangeReason reason: Int) {\n val manifest = player.currentManifest\n if (manifest is SsManifest) {\n // Do something with the manifest.\n }\n }\n }\n)\n```\n\n### Java\n\n```java\nplayer.addListener(\n new Player.Listener() {\n @Override\n public void onTimelineChanged(\n Timeline timeline, @Player.TimelineChangeReason int reason) {\n Object manifest = player.getCurrentManifest();\n if (manifest != null) {\n SsManifest ssManifest = (SsManifest) manifest;\n // Do something with the manifest.\n }\n }\n });\n```\n\n\u003cbr /\u003e\n\nCustomizing playback\n--------------------\n\nExoPlayer provides multiple ways for you to tailor playback experience to your\napp's needs. See the [Customization page](/guide/topics/media/exoplayer/customization) for examples."]]