diff options
Diffstat (limited to 'media/libstagefright/codecs/amrwbenc/src/gpclip.c')
| -rw-r--r-- | media/libstagefright/codecs/amrwbenc/src/gpclip.c | 94 |
1 files changed, 47 insertions, 47 deletions
diff --git a/media/libstagefright/codecs/amrwbenc/src/gpclip.c b/media/libstagefright/codecs/amrwbenc/src/gpclip.c index 800b3f9..4ce3daa 100644 --- a/media/libstagefright/codecs/amrwbenc/src/gpclip.c +++ b/media/libstagefright/codecs/amrwbenc/src/gpclip.c @@ -35,75 +35,75 @@ void Init_gp_clip( - Word16 mem[] /* (o) : memory of gain of pitch clipping algorithm */ - ) + Word16 mem[] /* (o) : memory of gain of pitch clipping algorithm */ + ) { - mem[0] = DIST_ISF_MAX; - mem[1] = GAIN_PIT_MIN; + mem[0] = DIST_ISF_MAX; + mem[1] = GAIN_PIT_MIN; } Word16 Gp_clip( - Word16 mem[] /* (i/o) : memory of gain of pitch clipping algorithm */ - ) + Word16 mem[] /* (i/o) : memory of gain of pitch clipping algorithm */ + ) { - Word16 clip = 0; - if ((mem[0] < DIST_ISF_THRES) && (mem[1] > GAIN_PIT_THRES)) - clip = 1; + Word16 clip = 0; + if ((mem[0] < DIST_ISF_THRES) && (mem[1] > GAIN_PIT_THRES)) + clip = 1; - return (clip); + return (clip); } void Gp_clip_test_isf( - Word16 isf[], /* (i) : isf values (in frequency domain) */ - Word16 mem[] /* (i/o) : memory of gain of pitch clipping algorithm */ - ) + Word16 isf[], /* (i) : isf values (in frequency domain) */ + Word16 mem[] /* (i/o) : memory of gain of pitch clipping algorithm */ + ) { - Word16 dist, dist_min; - Word32 i; + Word16 dist, dist_min; + Word32 i; - dist_min = vo_sub(isf[1], isf[0]); + dist_min = vo_sub(isf[1], isf[0]); - for (i = 2; i < M - 1; i++) - { - dist = vo_sub(isf[i], isf[i - 1]); - if(dist < dist_min) - { - dist_min = dist; - } - } + for (i = 2; i < M - 1; i++) + { + dist = vo_sub(isf[i], isf[i - 1]); + if(dist < dist_min) + { + dist_min = dist; + } + } - dist = extract_h(L_mac(vo_L_mult(26214, mem[0]), 6554, dist_min)); + dist = extract_h(L_mac(vo_L_mult(26214, mem[0]), 6554, dist_min)); - if (dist > DIST_ISF_MAX) - { - dist = DIST_ISF_MAX; - } - mem[0] = dist; + if (dist > DIST_ISF_MAX) + { + dist = DIST_ISF_MAX; + } + mem[0] = dist; - return; + return; } void Gp_clip_test_gain_pit( - Word16 gain_pit, /* (i) Q14 : gain of quantized pitch */ - Word16 mem[] /* (i/o) : memory of gain of pitch clipping algorithm */ - ) + Word16 gain_pit, /* (i) Q14 : gain of quantized pitch */ + Word16 mem[] /* (i/o) : memory of gain of pitch clipping algorithm */ + ) { - Word16 gain; - Word32 L_tmp; - L_tmp = (29491 * mem[1])<<1; - L_tmp += (3277 * gain_pit)<<1; - - gain = extract_h(L_tmp); - - if(gain < GAIN_PIT_MIN) - { - gain = GAIN_PIT_MIN; - } - mem[1] = gain; - return; + Word16 gain; + Word32 L_tmp; + L_tmp = (29491 * mem[1])<<1; + L_tmp += (3277 * gain_pit)<<1; + + gain = extract_h(L_tmp); + + if(gain < GAIN_PIT_MIN) + { + gain = GAIN_PIT_MIN; + } + mem[1] = gain; + return; } |