Android TV中ExoPlayer播放SMIL格式视频抛出ParserException求助

Hey there! I’ve run into similar SMIL playback snags with ExoPlayer before, so let’s work through this together. The ParserException you’re hitting happens because ExoPlayer doesn’t support SMIL parsing out of the box—you need to enable its dedicated SMIL extension to handle that format properly.

Step 1: Add the ExoPlayer SMIL Extension Dependency #

First, include the SMIL extension in your module-level build.gradle file. Make sure its version matches your core ExoPlayer version to avoid compatibility issues:

dependencies {
    // Replace ${exoplayerVersion} with your actual ExoPlayer version (e.g., 2.19.1)
    implementation "com.google.android.exoplayer:exoplayer-core:${exoplayerVersion}"
    implementation "com.google.android.exoplayer:exoplayer-smil:${exoplayerVersion}"
}

Step 2: Use SMILMediaSource for SMIL Content #

Instead of using standard media sources like ProgressiveMediaSource, you’ll need to create a SMILMediaSource to wrap your SMIL URL. Here’s a practical code example (Kotlin, easily adaptable to Java):

// Initialize your ExoPlayer instance
val player = ExoPlayer.Builder(context).build()

// Set up a data source factory for network requests (customize the user agent as needed)
val dataSourceFactory = DefaultHttpDataSource.Factory()
    .setUserAgent("YourAndroidTVApp/1.0")

// Create the SMIL parser required to parse the SMIL XML structure
val smilParser = SMILParser()

// Build the SMIL-specific media source
val smilMediaSource = SMILMediaSource.Factory(dataSourceFactory)
    .setParser(smilParser)
    .createMediaSource(MediaItem.fromUri("your_smil_content_url_here"))

// Attach the source to the player and start playback
player.setMediaSource(smilMediaSource)
player.prepare()
player.play()

Step 3: Troubleshooting Common Issues #

If you still run into errors, check these common pitfalls:

• Valid SMIL File: Verify your backend returns a properly formatted SMIL XML. Open the SMIL URL in a browser—you should see a <smil> root tag with valid <video>/<audio> child elements.
• Version Match: Double-check that the SMIL extension version exactly matches your core ExoPlayer version. Mismatched versions often cause parsing failures.
• Network Permissions: Ensure your AndroidManifest.xml includes the INTERNET permission (required for loading remote content):

  <uses-permission android:name="android.permission.INTERNET" />
  

• CORS Restrictions: If your backend enforces CORS, add necessary headers to your data source factory using setDefaultRequestProperties.

Give these steps a try—this should resolve the ParserException and let ExoPlayer properly parse and play your SMIL content.

内容的提问来源于stack exchange，提问作者AabidMulani