avifile: Fix playback of fixed sample size audio streams.

bfe9e6d7 · Maarten Lankhorst · Alexandre Julliard · 7f8ccf03 · bfe9e6d7
Commit bfe9e6d7 authored Jan 20, 2010 by Maarten Lankhorst Committed by Alexandre Julliard Jan 20, 2010
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avifile.c dlls/avifil32/avifile.c +9 -0

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--- a/dlls/avifil32/avifile.c
+++ b/dlls/avifil32/avifile.c
@@ -1087,6 +1087,15 @@ static HRESULT WINAPI IAVIStream_fnRead(IAVIStream *iface, LONG start,
    LONG block = start;
    LONG offset = 0;

+    if (!buffer)
+    {
+      if (bytesread)
+        *bytesread = samples*This->sInfo.dwSampleSize;
+      if (samplesread)
+        *samplesread = samples;
+      return AVIERR_OK;
+    }
+
    /* convert start sample to block,offset pair */
    AVIFILE_SamplesToBlock(This, &block, &offset);