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1 /* | 1 /* |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #include "webrtc/voice_engine/dtmf_inband.h" | 11 #include "webrtc/voice_engine/dtmf_inband.h" |
12 | 12 |
13 #include <assert.h> | 13 #include <assert.h> |
14 | 14 |
15 #include "webrtc/system_wrappers/interface/critical_section_wrapper.h" | 15 #include "webrtc/system_wrappers/include/critical_section_wrapper.h" |
16 #include "webrtc/system_wrappers/interface/trace.h" | 16 #include "webrtc/system_wrappers/include/trace.h" |
17 | 17 |
18 namespace webrtc { | 18 namespace webrtc { |
19 | 19 |
20 const int16_t Dtmf_a_times2Tab8Khz[8]= | 20 const int16_t Dtmf_a_times2Tab8Khz[8]= |
21 { | 21 { |
22 27978, 26956, 25701, 24219, | 22 27978, 26956, 25701, 24219, |
23 19073, 16325, 13085, 9314 | 23 19073, 16325, 13085, 9314 |
24 }; | 24 }; |
25 | 25 |
26 const int16_t Dtmf_a_times2Tab16Khz[8]= | 26 const int16_t Dtmf_a_times2Tab16Khz[8]= |
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381 tempVal=(tempVal+16384)>>15; | 381 tempVal=(tempVal+16384)>>15; |
382 | 382 |
383 /* Scale the signal to correct dbM0 value */ | 383 /* Scale the signal to correct dbM0 value */ |
384 signal[i]=(int16_t)((tempVal*Dtmf_dBm0kHz[volume]+8192)>>14); | 384 signal[i]=(int16_t)((tempVal*Dtmf_dBm0kHz[volume]+8192)>>14); |
385 } | 385 } |
386 | 386 |
387 return(0); | 387 return(0); |
388 } | 388 } |
389 | 389 |
390 } // namespace webrtc | 390 } // namespace webrtc |
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