When developing MP3 playing software with DirectShow, I found the MPEG Layer-3 Audio Decoder that the system comes with the system is not able to play the MP3 file.
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There is data into MPEG Layer-3 Audio Decoder but there is no data from MPEG Layer-3 Audio Decoder. Is there any MP3 file that has a speed high? Not too! I first locate the MPEG Layer-3 Audio Decoder decoder file, and then rename the file, and use Render to play the speed MP3 file in Graphedit. Found the ACM Wrapper Filter, click Play, and find it can be played.
Try other MP3 or play.
But look at the name of the ACM Wrapper Filter, this filter is a packaging filter for the system ACM, used to compress and decompress (audio format conversion), so if the data carried in MP3 is MPEG1AudiopayLoad or MPEG1PAYLOAD can't play.
