Fixing a bug with some of the .wav files not loading. All wave files are not guaranteed to have 16 bytes in the fmt section. There can be optional information in there. See http://www-mmsp.ece.mcgill.ca/documents/audioformats/wave/wave.html for example. Modified the code so that it accounts for those optional sections.

gameplay/src/AudioBuffer.cpp

@@ -179,6 +179,12 @@ bool AudioBuffer::loadWav(FILE* file, ALuint buffer)
     if (fread(stream, 1, 8, file) != 8 || memcmp(stream, "fmt ", 4) != 0 )
         return false;
     
+    unsigned int section_size;
+    section_size  = stream[7]<<24;
+    section_size |= stream[6]<<16;
+    section_size |= stream[5]<<8;
+    section_size |= stream[4];
+
     // Check for a valid pcm format.
     if (fread(stream, 1, 2, file) != 2 || stream[1] != 0 || stream[0] != 1)
     {
@@ -216,7 +222,6 @@ bool AudioBuffer::loadWav(FILE* file, ALuint buffer)
     bits  = stream[1]<<8;
     bits |= stream[0];
     
-
     // Now convert the given channel count and bit depth into an OpenAL format. 
     ALuint format = 0;
     if (bits == 8)
@@ -239,13 +244,45 @@ bool AudioBuffer::loadWav(FILE* file, ALuint buffer)
         return false;
     }
     
-    // Read the data chunk, which will hold the decoded sample data 
-    if (fread(stream, 1, 4, file) != 4 || memcmp(stream, "data", 4) != 0)
+    // Check against the size of the format header as there may be more data that we need to read
+    if (section_size > 16)
     {
-        LOG_ERROR("WAV file has no data.");
-        return false;
+    	unsigned int length = section_size - 16;
+
+    	// extension size is 2 bytes
+    	if (fread(stream, 1, length, file) != length)
+    		return false;
     }
-    
+
+    if (fread(stream, 1, 4, file) != 4)
+    	return false;
+
+    // read the next chunk, could be fact section or the data section
+    if (memcmp(stream, "fact", 4) == 0)
+    {
+    	if (fread(stream, 1, 4, file) != 4)
+    		return false;
+
+    	section_size  = stream[3]<<24;
+    	section_size |= stream[2]<<16;
+    	section_size |= stream[1]<<8;
+    	section_size |= stream[0];
+
+    	// read in the rest of the fact section
+    	if (fread(stream, 1, section_size, file) != section_size)
+    		return false;
+
+    	if (fread(stream, 1, 4, file) != 4)
+    		return false;
+    }
+
+    // should now be the data section which holds the decoded sample data
+    if (memcmp(stream, "data", 4) != 0)
+    {
+    	LOG_ERROR("WAV file has no data.");
+    	return false;
+    }
+
     // Read how much data is remaining and buffer it up.
     unsigned int dataSize;
     fread(&dataSize, sizeof(int), 1, file);