From 1303bfbc7c1b1a36dff8a1dc546f25c8824c0d52 Mon Sep 17 00:00:00 2001
From: sheenachhabra <sheenachhabra@google.com>
Date: Fri, 15 Dec 2023 10:03:36 -0800
Subject: [PATCH] Set language field when creating MediaFormat from a Format

Currently Transformer simply omits the language field from the input
media file when writing data to the output file.

PiperOrigin-RevId: 591287481
---
 .../main/java/androidx/media3/transformer/FrameworkMuxer.java    | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libraries/transformer/src/main/java/androidx/media3/transformer/FrameworkMuxer.java b/libraries/transformer/src/main/java/androidx/media3/transformer/FrameworkMuxer.java
index 1d9a060afe..638dbc74e9 100644
--- a/libraries/transformer/src/main/java/androidx/media3/transformer/FrameworkMuxer.java
+++ b/libraries/transformer/src/main/java/androidx/media3/transformer/FrameworkMuxer.java
@@ -123,6 +123,7 @@ import java.nio.ByteBuffer;
     } else {
       mediaFormat =
           MediaFormat.createAudioFormat(sampleMimeType, format.sampleRate, format.channelCount);
+      MediaFormatUtil.maybeSetString(mediaFormat, MediaFormat.KEY_LANGUAGE, format.language);
     }
     MediaFormatUtil.setCsdBuffers(mediaFormat, format.initializationData);
     int trackIndex;