diff options
| author | Koen Vos <koen.vos@skype.net> | 2011-10-29 03:44:26 +0400 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2011-10-29 03:44:26 +0400 |
| commit | acc7a6c78b266e3ef0e1f91ee405af92a0989dec (patch) | |
| tree | d3e32cc66cf96fecdaffc924ff0d051028b72f31 /silk/resampler_private_down_FIR.c | |
| parent | 2d4f61409186c7efa831387bf14e2164607a805a (diff) | |
Reformatting changes with an update to the MSVC project files
Diffstat (limited to 'silk/resampler_private_down_FIR.c')
| -rw-r--r-- | silk/resampler_private_down_FIR.c | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/silk/resampler_private_down_FIR.c b/silk/resampler_private_down_FIR.c index 028a200e..b9c2519b 100644 --- a/silk/resampler_private_down_FIR.c +++ b/silk/resampler_private_down_FIR.c @@ -33,10 +33,16 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #include "resampler_private.h" static inline opus_int16 *silk_resampler_private_down_FIR_INTERPOL0( - opus_int16 *out, opus_int32 *buf2, const opus_int16 *FIR_Coefs, opus_int32 max_index_Q16, opus_int32 index_increment_Q16){ - + opus_int16 *out, + opus_int32 *buf2, + const opus_int16 *FIR_Coefs, + opus_int32 max_index_Q16, + opus_int32 index_increment_Q16 +) +{ opus_int32 index_Q16, res_Q6; opus_int32 *buf_ptr; + for( index_Q16 = 0; index_Q16 < max_index_Q16; index_Q16 += index_increment_Q16 ) { /* Integer part gives pointer to buffered input */ buf_ptr = buf2 + silk_RSHIFT( index_Q16, 16 ); @@ -51,19 +57,26 @@ static inline opus_int16 *silk_resampler_private_down_FIR_INTERPOL0( res_Q6 = silk_SMLAWB( res_Q6, silk_ADD32( buf_ptr[ 6 ], buf_ptr[ 9 ] ), FIR_Coefs[ 6 ] ); res_Q6 = silk_SMLAWB( res_Q6, silk_ADD32( buf_ptr[ 7 ], buf_ptr[ 8 ] ), FIR_Coefs[ 7 ] ); - /* Scale down, saturate and store in output array */ + /* Scale down, saturate and store in output array */ *out++ = (opus_int16)silk_SAT16( silk_RSHIFT_ROUND( res_Q6, 6 ) ); } return out; } static inline opus_int16 *silk_resampler_private_down_FIR_INTERPOL1( - opus_int16 *out, opus_int32 *buf2, const opus_int16 *FIR_Coefs, opus_int32 max_index_Q16, opus_int32 index_increment_Q16, opus_int32 FIR_Fracs){ - + opus_int16 *out, + opus_int32 *buf2, + const opus_int16 *FIR_Coefs, + opus_int32 max_index_Q16, + opus_int32 index_increment_Q16, + opus_int32 FIR_Fracs +) +{ opus_int32 index_Q16, res_Q6; opus_int32 *buf_ptr; opus_int32 interpol_ind; const opus_int16 *interpol_ptr; + for( index_Q16 = 0; index_Q16 < max_index_Q16; index_Q16 += index_increment_Q16 ) { /* Integer part gives pointer to buffered input */ buf_ptr = buf2 + silk_RSHIFT( index_Q16, 16 ); @@ -100,10 +113,10 @@ static inline opus_int16 *silk_resampler_private_down_FIR_INTERPOL1( /* Resample with a 2x downsampler (optional), a 2nd order AR filter followed by FIR interpolation */ void silk_resampler_private_down_FIR( - void *SS, /* I/O: Resampler state */ - opus_int16 out[], /* O: Output signal */ - const opus_int16 in[], /* I: Input signal */ - opus_int32 inLen /* I: Number of input samples */ + void *SS, /* I/O Resampler state */ + opus_int16 out[], /* O Output signal */ + const opus_int16 in[], /* I Input signal */ + opus_int32 inLen /* I Number of input samples */ ) { silk_resampler_state_struct *S = (silk_resampler_state_struct *)SS; |