Convert FLV with speex audio and avc video to mp4.

• convert_speex.bat - drag and drop FLV files with speex audio and avc video to convert audio and create mp4
• convert_mp4.bat - drag and drop FLV files that already have aac audio and avc video to create mp4

• ffmpeg https://ffmpeg.zeranoe.com/builds/

GPL-3.0+