diff options
Diffstat (limited to 'media/libstagefright/codecs/aacenc/src/block_switch.c')
| -rw-r--r-- | media/libstagefright/codecs/aacenc/src/block_switch.c | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/media/libstagefright/codecs/aacenc/src/block_switch.c b/media/libstagefright/codecs/aacenc/src/block_switch.c index c80538f..2878ad3 100644 --- a/media/libstagefright/codecs/aacenc/src/block_switch.c +++ b/media/libstagefright/codecs/aacenc/src/block_switch.c @@ -30,9 +30,6 @@ #define ENERGY_SHIFT (8 - 1) /**************** internal function prototypes ***********/ -static Word16 -IIRFilter(const Word16 in, const Word32 coeff[], Word32 states[]); - static Word32 SrchMaxWithIndex(const Word32 *in, Word16 *index, Word16 n); @@ -329,30 +326,6 @@ Word32 CalcWindowEnergy(BLOCK_SWITCHING_CONTROL *blockSwitchingControl, } #endif -/***************************************************************************** -* -* function name: IIRFilter -* description: calculate the iir-filter for an array -* returns: the result after iir-filter -* -**********************************************************************************/ -static Word16 IIRFilter(const Word16 in, const Word32 coeff[], Word32 states[]) -{ - Word32 accu1, accu2, accu3; - Word32 out; - - accu1 = L_mpy_ls(coeff[1], in); - accu3 = accu1 - states[0]; - accu2 = fixmul( coeff[0], states[1] ); - out = accu3 - accu2; - - states[0] = accu1; - states[1] = out; - - return round16(out); -} - - static Word16 synchronizedBlockTypeTable[4][4] = { /* LONG_WINDOW START_WINDOW SHORT_WINDOW STOP_WINDOW */ /* LONG_WINDOW */{LONG_WINDOW, START_WINDOW, SHORT_WINDOW, STOP_WINDOW}, |