From 866f9d21fc6b9d857328b5c2e416a514b467c83f Mon Sep 17 00:00:00 2001
From: Niels Martin Hansen <nielsm@aegisub.org>
Date: Wed, 29 Apr 2009 19:30:02 +0000
Subject: [PATCH] Let AudioProvider::GetAudioWithVolume() catch exceptions in
 AudioProvider::GetAudio() and return blank audio when that happens. Errors
 are not logged or otherwise handled. This fixes #800 for most cases, even if
 poorly.

Originally committed to SVN as r2883.
---
 aegisub/src/audio_provider.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/aegisub/src/audio_provider.cpp b/aegisub/src/audio_provider.cpp
index 2758f2019..aadf4324e 100644
--- a/aegisub/src/audio_provider.cpp
+++ b/aegisub/src/audio_provider.cpp
@@ -175,7 +175,16 @@ void AudioProvider::GetWaveForm(int *min,int *peak,int64_t start,int w,int h,int
 /////////////////////////
 // Get audio with volume
 void AudioProvider::GetAudioWithVolume(void *buf, int64_t start, int64_t count, double volume) {
-	GetAudio(buf,start,count);
+	try {
+		GetAudio(buf,start,count);
+	}
+	catch (...) {
+		// FIXME: Poor error handling though better than none, to patch issue #800.
+		// Just return blank audio if real provider fails.
+		memset(buf, 0, count*bytes_per_sample);
+		return;
+	}
+
 	if (volume == 1.0) return;
 
 	if (bytes_per_sample == 2) {