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Side by Side Diff: silk/VAD.c

Issue 882843002: Update to opus-HEAD-66611f1. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/opus.git@master
Patch Set: Add the contents of Makefile.mips back. Created 5 years, 10 months ago
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1 /*********************************************************************** 1 /***********************************************************************
2 Copyright (c) 2006-2011, Skype Limited. All rights reserved. 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.
3 Redistribution and use in source and binary forms, with or without 3 Redistribution and use in source and binary forms, with or without
4 modification, are permitted provided that the following conditions 4 modification, are permitted provided that the following conditions
5 are met: 5 are met:
6 - Redistributions of source code must retain the above copyright notice, 6 - Redistributions of source code must retain the above copyright notice,
7 this list of conditions and the following disclaimer. 7 this list of conditions and the following disclaimer.
8 - Redistributions in binary form must reproduce the above copyright 8 - Redistributions in binary form must reproduce the above copyright
9 notice, this list of conditions and the following disclaimer in the 9 notice, this list of conditions and the following disclaimer in the
10 documentation and/or other materials provided with the distribution. 10 documentation and/or other materials provided with the distribution.
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26 ***********************************************************************/ 26 ***********************************************************************/
27 27
28 #ifdef HAVE_CONFIG_H 28 #ifdef HAVE_CONFIG_H
29 #include "config.h" 29 #include "config.h"
30 #endif 30 #endif
31 31
32 #include "main.h" 32 #include "main.h"
33 #include "stack_alloc.h" 33 #include "stack_alloc.h"
34 34
35 /* Silk VAD noise level estimation */ 35 /* Silk VAD noise level estimation */
36 # if !defined(OPUS_X86_MAY_HAVE_SSE4_1)
36 static OPUS_INLINE void silk_VAD_GetNoiseLevels( 37 static OPUS_INLINE void silk_VAD_GetNoiseLevels(
37 const opus_int32 pX[ VAD_N_BANDS ], /* I subband energies */ 38 const opus_int32 pX[ VAD_N_BANDS ], /* I subband energies */
38 silk_VAD_state *psSilk_VAD /* I/O Pointer to Silk VAD state */ 39 silk_VAD_state *psSilk_VAD /* I/O Pointer to Silk VAD state */
39 ); 40 );
41 #endif
40 42
41 /**********************************/ 43 /**********************************/
42 /* Initialization of the Silk VAD */ 44 /* Initialization of the Silk VAD */
43 /**********************************/ 45 /**********************************/
44 opus_int silk_VAD_Init( /* O Return v alue, 0 if success */ 46 opus_int silk_VAD_Init( /* O Return v alue, 0 if success */
45 silk_VAD_state *psSilk_VAD /* I/O Pointer to Silk VAD state */ 47 silk_VAD_state *psSilk_VAD /* I/O Pointer to Silk VAD state */
46 ) 48 )
47 { 49 {
48 opus_int b, ret = 0; 50 opus_int b, ret = 0;
49 51
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70 72
71 return( ret ); 73 return( ret );
72 } 74 }
73 75
74 /* Weighting factors for tilt measure */ 76 /* Weighting factors for tilt measure */
75 static const opus_int32 tiltWeights[ VAD_N_BANDS ] = { 30000, 6000, -12000, -120 00 }; 77 static const opus_int32 tiltWeights[ VAD_N_BANDS ] = { 30000, 6000, -12000, -120 00 };
76 78
77 /***************************************/ 79 /***************************************/
78 /* Get the speech activity level in Q8 */ 80 /* Get the speech activity level in Q8 */
79 /***************************************/ 81 /***************************************/
80 opus_int silk_VAD_GetSA_Q8( /* O Return v alue, 0 if success */ 82 opus_int silk_VAD_GetSA_Q8_c( /* O Return v alue, 0 if success */
81 silk_encoder_state *psEncC, /* I/O Encoder state */ 83 silk_encoder_state *psEncC, /* I/O Encoder state */
82 const opus_int16 pIn[] /* I PCM inpu t */ 84 const opus_int16 pIn[] /* I PCM inpu t */
83 ) 85 )
84 { 86 {
85 opus_int SA_Q15, pSNR_dB_Q7, input_tilt; 87 opus_int SA_Q15, pSNR_dB_Q7, input_tilt;
86 opus_int decimated_framelength1, decimated_framelength2; 88 opus_int decimated_framelength1, decimated_framelength2;
87 opus_int decimated_framelength; 89 opus_int decimated_framelength;
88 opus_int dec_subframe_length, dec_subframe_offset, SNR_Q7, i, b, s; 90 opus_int dec_subframe_length, dec_subframe_offset, SNR_Q7, i, b, s;
89 opus_int32 sumSquared, smooth_coef_Q16; 91 opus_int32 sumSquared, smooth_coef_Q16;
90 opus_int16 HPstateTmp; 92 opus_int16 HPstateTmp;
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289 psEncC->input_quality_bands_Q15[ b ] = silk_sigm_Q15( silk_RSHIFT( SNR_Q 7 - 16 * 128, 4 ) ); 291 psEncC->input_quality_bands_Q15[ b ] = silk_sigm_Q15( silk_RSHIFT( SNR_Q 7 - 16 * 128, 4 ) );
290 } 292 }
291 293
292 RESTORE_STACK; 294 RESTORE_STACK;
293 return( ret ); 295 return( ret );
294 } 296 }
295 297
296 /**************************/ 298 /**************************/
297 /* Noise level estimation */ 299 /* Noise level estimation */
298 /**************************/ 300 /**************************/
299 static OPUS_INLINE void silk_VAD_GetNoiseLevels( 301 # if !defined(OPUS_X86_MAY_HAVE_SSE4_1)
302 static OPUS_INLINE
303 #endif
304 void silk_VAD_GetNoiseLevels(
300 const opus_int32 pX[ VAD_N_BANDS ], /* I subband energies */ 305 const opus_int32 pX[ VAD_N_BANDS ], /* I subband energies */
301 silk_VAD_state *psSilk_VAD /* I/O Pointer to Silk VAD state */ 306 silk_VAD_state *psSilk_VAD /* I/O Pointer to Silk VAD state */
302 ) 307 )
303 { 308 {
304 opus_int k; 309 opus_int k;
305 opus_int32 nl, nrg, inv_nrg; 310 opus_int32 nl, nrg, inv_nrg;
306 opus_int coef, min_coef; 311 opus_int coef, min_coef;
307 312
308 /* Initially faster smoothing */ 313 /* Initially faster smoothing */
309 if( psSilk_VAD->counter < 1000 ) { /* 1000 = 20 sec */ 314 if( psSilk_VAD->counter < 1000 ) { /* 1000 = 20 sec */
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348 /* Limit noise levels (guarantee 7 bits of head room) */ 353 /* Limit noise levels (guarantee 7 bits of head room) */
349 nl = silk_min( nl, 0x00FFFFFF ); 354 nl = silk_min( nl, 0x00FFFFFF );
350 355
351 /* Store as part of state */ 356 /* Store as part of state */
352 psSilk_VAD->NL[ k ] = nl; 357 psSilk_VAD->NL[ k ] = nl;
353 } 358 }
354 359
355 /* Increment frame counter */ 360 /* Increment frame counter */
356 psSilk_VAD->counter++; 361 psSilk_VAD->counter++;
357 } 362 }
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