Do not write empty track (with no samples) in a non fragmented MP4

PiperOrigin-RevId: 600453680
2024-01-22 07:42:26 -08:00 · 2024-01-22 07:42:26 -08:00 · 94bf9fa81d
commit 94bf9fa81d
parent 81615dd5b5
1 changed files with 3 additions and 0 deletions
--- a/libraries/muxer/src/main/java/androidx/media3/muxer/Mp4MoovStructure.java
+++ b/libraries/muxer/src/main/java/androidx/media3/muxer/Mp4MoovStructure.java
@ -67,6 +67,9 @@ import org.checkerframework.checker.nullness.qual.PolyNull;
    long videoDurationUs = 0L;
    for (int i = 0; i < tracks.size(); i++) {
      TrackMetadataProvider track = tracks.get(i);
+      if (!isFragmentedMp4 && track.writtenSamples().isEmpty()) {
+        continue;
+      }
      Format format = track.format();
      String languageCode = bcp47LanguageTagToIso3(format.language);