[Lame-dev] [ lame-Feature Requests-1811483 ] WAVE_FORMAT_EXTENSIBLE support

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Feature Requests item #1811483, was opened at 2007-10-11 04:47
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Category: None
Group: None
Status: Open
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: WAVE_FORMAT_EXTENSIBLE support

Initial Comment:
Is easy add WAVE_FORMAT_EXTENSIBLE wav headers support.

We only need insert the lines 1084 to 1094 in get_audio.c:

     bits_per_sample = Read16BitsLowHigh(sf);
     subSize -= 2;

+    /* WAVE_FORMAT_EXTENSIBLE support */
+
+    if ( (subSize > 9) && (format_tag == -2) ) {
+        format_tag = Read16BitsLowHigh(sf);    // cbSize
+        format_tag = Read16BitsLowHigh(sf);    // ValidBitsPerSample
+        format_tag = Read16BitsLowHigh(sf);    // ChannelMask 1
+        format_tag = Read16BitsLowHigh(sf);    // ChannelMask 2
+        format_tag = Read16BitsLowHigh(sf);    // SubType coincident with format_tag for PCM int or float
+        subSize -= 10;
+    }
+
     /* DEBUGF("   skipping %d bytes\n", subSize); */


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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=350290&aid=1811483&group_id=290