FLV_SAMPLERATE_SPECIAL 169 libavformat/flvenc.c flags |= FLV_SAMPLERATE_SPECIAL; FLV_SAMPLERATE_SPECIAL 209 libavformat/flvenc.c flags = FLV_CODECID_PCM_MULAW | FLV_SAMPLERATE_SPECIAL | FLV_SAMPLESSIZE_16BIT; FLV_SAMPLERATE_SPECIAL 212 libavformat/flvenc.c flags = FLV_CODECID_PCM_ALAW | FLV_SAMPLERATE_SPECIAL | FLV_SAMPLESSIZE_16BIT;