QMFAnalysis        88 libavcodec/aptx.h     QMFAnalysis qmf;
QMFAnalysis        55 libavcodec/aptxdec.c static void aptx_qmf_tree_synthesis(QMFAnalysis *qmf,
QMFAnalysis        57 libavcodec/aptxenc.c static void aptx_qmf_tree_analysis(QMFAnalysis *qmf,