IEC61937_MPEG2_LAYER3_LSF 76 libavformat/spdifdec.c case IEC61937_MPEG2_LAYER3_LSF: IEC61937_MPEG2_LAYER3_LSF 322 libavformat/spdifenc.c { IEC61937_MPEG2_LAYER1_LSF, IEC61937_MPEG2_LAYER2_LSF, IEC61937_MPEG2_LAYER3_LSF },//MPEG2 LSF