diff options
Diffstat (limited to 'media/libstagefright/codecs/amrwbenc/inc/wb_vad.h')
| -rw-r--r-- | media/libstagefright/codecs/amrwbenc/inc/wb_vad.h | 156 |
1 files changed, 78 insertions, 78 deletions
diff --git a/media/libstagefright/codecs/amrwbenc/inc/wb_vad.h b/media/libstagefright/codecs/amrwbenc/inc/wb_vad.h index b733afe..6822f48 100644 --- a/media/libstagefright/codecs/amrwbenc/inc/wb_vad.h +++ b/media/libstagefright/codecs/amrwbenc/inc/wb_vad.h @@ -1,78 +1,78 @@ -/*
- ** Copyright 2003-2010, VisualOn, Inc.
- **
- ** Licensed under the Apache License, Version 2.0 (the "License");
- ** you may not use this file except in compliance with the License.
- ** You may obtain a copy of the License at
- **
- ** http://www.apache.org/licenses/LICENSE-2.0
- **
- ** Unless required by applicable law or agreed to in writing, software
- ** distributed under the License is distributed on an "AS IS" BASIS,
- ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ** See the License for the specific language governing permissions and
- ** limitations under the License.
- */
-
-
-/*-------------------------------------------------------------------*
- * WB_VAD.H *
- *-------------------------------------------------------------------*
- * Functions and static memory for Voice Activity Detection. *
- *-------------------------------------------------------------------*/
-
-#ifndef __WB_VAD_H__
-#define __WB_VAD_H__
-
-/******************************************************************************
- * INCLUDE FILES
- ******************************************************************************/
-#include "typedef.h"
-#include "wb_vad_c.h"
-#include "voMem.h"
-
-/******************************************************************************
- * DEFINITION OF DATA TYPES
- ******************************************************************************/
-
-typedef struct
-{
- Word16 bckr_est[COMPLEN]; /* background noise estimate */
- Word16 ave_level[COMPLEN]; /* averaged input components for stationary */
- /* estimation */
- Word16 old_level[COMPLEN]; /* input levels of the previous frame */
- Word16 sub_level[COMPLEN]; /* input levels calculated at the end of a frame (lookahead) */
- Word16 a_data5[F_5TH_CNT][2]; /* memory for the filter bank */
- Word16 a_data3[F_3TH_CNT]; /* memory for the filter bank */
-
- Word16 burst_count; /* counts length of a speech burst */
- Word16 hang_count; /* hangover counter */
- Word16 stat_count; /* stationary counter */
-
- /* Note that each of the following two variables holds 15 flags. Each flag reserves 1 bit of the
- * variable. The newest flag is in the bit 15 (assuming that LSB is bit 1 and MSB is bit 16). */
- Word16 vadreg; /* flags for intermediate VAD decisions */
- Word16 tone_flag; /* tone detection flags */
-
- Word16 sp_est_cnt; /* counter for speech level estimation */
- Word16 sp_max; /* maximum level */
- Word16 sp_max_cnt; /* counts frames that contains speech */
- Word16 speech_level; /* estimated speech level */
- Word32 prev_pow_sum; /* power of previous frame */
-
-} VadVars;
-
-/********************************************************************************
- *
- * DECLARATION OF PROTOTYPES
- ********************************************************************************/
-
-Word16 wb_vad_init(VadVars ** st, VO_MEM_OPERATOR *pMemOP);
-Word16 wb_vad_reset(VadVars * st);
-void wb_vad_exit(VadVars ** st, VO_MEM_OPERATOR *pMemOP);
-void wb_vad_tone_detection(VadVars * st, Word16 p_gain);
-Word16 wb_vad(VadVars * st, Word16 in_buf[]);
-
-#endif //__WB_VAD_H__
-
-
+/* + ** Copyright 2003-2010, VisualOn, Inc. + ** + ** Licensed under the Apache License, Version 2.0 (the "License"); + ** you may not use this file except in compliance with the License. + ** You may obtain a copy of the License at + ** + ** http://www.apache.org/licenses/LICENSE-2.0 + ** + ** Unless required by applicable law or agreed to in writing, software + ** distributed under the License is distributed on an "AS IS" BASIS, + ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + ** See the License for the specific language governing permissions and + ** limitations under the License. + */ + + +/*-------------------------------------------------------------------* + * WB_VAD.H * + *-------------------------------------------------------------------* + * Functions and static memory for Voice Activity Detection. * + *-------------------------------------------------------------------*/ + +#ifndef __WB_VAD_H__ +#define __WB_VAD_H__ + +/****************************************************************************** + * INCLUDE FILES + ******************************************************************************/ +#include "typedef.h" +#include "wb_vad_c.h" +#include "voMem.h" + +/****************************************************************************** + * DEFINITION OF DATA TYPES + ******************************************************************************/ + +typedef struct +{ + Word16 bckr_est[COMPLEN]; /* background noise estimate */ + Word16 ave_level[COMPLEN]; /* averaged input components for stationary */ + /* estimation */ + Word16 old_level[COMPLEN]; /* input levels of the previous frame */ + Word16 sub_level[COMPLEN]; /* input levels calculated at the end of a frame (lookahead) */ + Word16 a_data5[F_5TH_CNT][2]; /* memory for the filter bank */ + Word16 a_data3[F_3TH_CNT]; /* memory for the filter bank */ + + Word16 burst_count; /* counts length of a speech burst */ + Word16 hang_count; /* hangover counter */ + Word16 stat_count; /* stationary counter */ + + /* Note that each of the following two variables holds 15 flags. Each flag reserves 1 bit of the + * variable. The newest flag is in the bit 15 (assuming that LSB is bit 1 and MSB is bit 16). */ + Word16 vadreg; /* flags for intermediate VAD decisions */ + Word16 tone_flag; /* tone detection flags */ + + Word16 sp_est_cnt; /* counter for speech level estimation */ + Word16 sp_max; /* maximum level */ + Word16 sp_max_cnt; /* counts frames that contains speech */ + Word16 speech_level; /* estimated speech level */ + Word32 prev_pow_sum; /* power of previous frame */ + +} VadVars; + +/******************************************************************************** + * + * DECLARATION OF PROTOTYPES + ********************************************************************************/ + +Word16 wb_vad_init(VadVars ** st, VO_MEM_OPERATOR *pMemOP); +Word16 wb_vad_reset(VadVars * st); +void wb_vad_exit(VadVars ** st, VO_MEM_OPERATOR *pMemOP); +void wb_vad_tone_detection(VadVars * st, Word16 p_gain); +Word16 wb_vad(VadVars * st, Word16 in_buf[]); + +#endif //__WB_VAD_H__ + + |