From 82539ae3f03459db3069c9c3ef552098d42fe41e Mon Sep 17 00:00:00 2001
From: manongjohn <dancel@ptd.net>
Date: Mar 30 2023 23:09:48 +0000
Subject: Fix mixing multiple audio + rendering 32bit float


---

diff --git a/toonz/sources/common/tsound/tsound.cpp b/toonz/sources/common/tsound/tsound.cpp
index 92eefea..1bb7c48 100644
--- a/toonz/sources/common/tsound/tsound.cpp
+++ b/toonz/sources/common/tsound/tsound.cpp
@@ -37,7 +37,8 @@ TSoundTrack::TSoundTrack(TUINT32 sampleRate, int bitPerSample, int channelCount,
     , m_sampleCount(sampleCount)
     , m_channelCount(channelCount)
     , m_parent(0)
-    , m_bufferOwner(true) {
+    , m_bufferOwner(true)
+    , m_sampleType(sampleType) {
   m_buffer = (UCHAR *)malloc(sampleCount * m_sampleSize);
   if (!m_buffer) return;
 
diff --git a/toonz/sources/image/ffmpeg/tiio_ffmpeg.cpp b/toonz/sources/image/ffmpeg/tiio_ffmpeg.cpp
index 34beb18..b4f6f05 100644
--- a/toonz/sources/image/ffmpeg/tiio_ffmpeg.cpp
+++ b/toonz/sources/image/ffmpeg/tiio_ffmpeg.cpp
@@ -191,7 +191,8 @@ void Ffmpeg::saveSoundTrack(TSoundTrack *st) {
 
   m_audioPath = getFfmpegCache().getQString() + "//" +
                 QString::fromStdString(m_path.getName()) + "tempOut.raw";
-  m_audioFormat = "s" + QString::number(m_bitsPerSample);
+  m_audioFormat = ((st->getSampleType() == TSound::FLOAT) ? "f" : "s") +
+                  QString::number(m_bitsPerSample);
   if (m_bitsPerSample > 8) m_audioFormat = m_audioFormat + "le";
   std::string strPath = m_audioPath.toStdString();
 
diff --git a/toonz/sources/toonzlib/txshsoundcolumn.cpp b/toonz/sources/toonzlib/txshsoundcolumn.cpp
index 900145f..34b2c73 100644
--- a/toonz/sources/toonzlib/txshsoundcolumn.cpp
+++ b/toonz/sources/toonzlib/txshsoundcolumn.cpp
@@ -1079,12 +1079,8 @@ TSoundTrackP TXshSoundColumn::getOverallSoundTrack(int fromFrame, int toFrame,
 
     if (s1 > 0 && s1 >= s0) {
       soundTrack = soundTrack->extract(s0, s1);
-      if (format.m_sampleType != TSound::FLOAT)							 
-        overallSoundTrack->copy(
-            soundTrack, int((levelStartFrame - fromFrame) * samplePerFrame));
-      else
-        overallSoundTrack->copy(
-            soundTrack, double((levelStartFrame - fromFrame) * samplePerFrame));
+      overallSoundTrack->copy(
+          soundTrack, int((levelStartFrame - fromFrame) * samplePerFrame));
     }
   }
   return overallSoundTrack;