From 01b860fdc44755bcc524cee5f5e7a12947aa65f8 Mon Sep 17 00:00:00 2001
From: samrobinson <samrobinson@google.com>
Date: Wed, 5 Jun 2024 08:27:35 -0700
Subject: [PATCH] Fix invalid state transitions for trim optimization
 getProgress.

Ensures valid progress state is returned. Should not return NOT_STARTED
once transformer.start has been called, until export ends.

PiperOrigin-RevId: 640533805
---
 .../src/main/java/androidx/media3/transformer/Transformer.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libraries/transformer/src/main/java/androidx/media3/transformer/Transformer.java b/libraries/transformer/src/main/java/androidx/media3/transformer/Transformer.java
index de4667715c..3182a77114 100644
--- a/libraries/transformer/src/main/java/androidx/media3/transformer/Transformer.java
+++ b/libraries/transformer/src/main/java/androidx/media3/transformer/Transformer.java
@@ -1196,6 +1196,9 @@ public final class Transformer {
       }
       @ProgressState
       int processMediaStartProgressState = transformerInternal.getProgress(progressHolder);
+      if (processMediaStartProgressState == PROGRESS_STATE_NOT_STARTED) {
+        return PROGRESS_STATE_WAITING_FOR_AVAILABILITY;
+      }
       if (processMediaStartProgressState == PROGRESS_STATE_AVAILABLE) {
         progressHolder.progress = round(progressHolder.progress * transcodeWeighting);
       }