Support of 7.1wide WAV ChannelMask

Author: JeromeMartinez

Project/GNU/CLI/test/test1.txt

@@ -267,6 +267,7 @@ Formats/WAV/Features/4ExtraNullBytesInFmtChunk/4ExtraNullBytesInFmtChunk.wav pas
 Formats/WAV/Features/ChannelMask/48000_24_1_LE_0x00000000.wav pass
 Formats/WAV/Features/ChannelMask/48000_24_2_LE_0x00000000.wav pass
 Formats/WAV/Features/ChannelMask/48000_24_6_LE_0x00000000.wav pass
+Formats/WAV/Features/ChannelMask/48000_24_8_LE_0x000000FF.wav pass
 Formats/WAV/Features/RF64/rf64_data_size.wav pass
 Formats/WAV/Features/RF64/rf64_extra_after_RIFF.wav pass
 Formats/WAV/Features/RF64/rf64_normal.wav pass

Source/Lib/Uncompressed/WAV/WAV.cpp

@@ -517,7 +517,7 @@ void wav::WAVE_fmt_()
          && (Channels != 2 || (ChannelMask != 0x00000000 && ChannelMask != 0x00000003))
          && (Channels != 4 || (ChannelMask != 0x00000000 && ChannelMask != 0x00000107))
          && (Channels != 6 || (ChannelMask != 0x00000000 && ChannelMask != 0x0000003F && ChannelMask != 0x0000060F))
-         && (Channels != 8 || (ChannelMask != 0x00000000 && ChannelMask != 0x0000063F)))
+         && (Channels != 8 || (ChannelMask != 0x00000000 && ChannelMask != 0x0000063F && ChannelMask != 0x000000FF)))
             Unsupported(unsupported::fmt__ChannelMask);
         FormatTag = Get_L4();
         uint32_t SubFormat2 = Get_L4();