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Merge pull request #761 in FS/freeswitch from ~PIOTRGREGOR/freeswitch:bugfix/FS-8960-avmd-set-buffer-position-to-beginning to master 

* commit 'fce7cfee35468decc8246c410cfd100dc6df7d5a':
  FS-8960 Set buffer position to beginning on reset
This commit is contained in:
Mike Jerris 2016-03-21 15:35:42 -05:00
parent 5b4ff6f9f9 fce7cfee35
commit 4ff1a6d2cc
3 changed files with 14 additions and 24 deletions
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7
src/mod/applications/mod_avmd/buffer.h
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@ -92,13 +92,14 @@ extern size_t next_power_of_2(size_t v);
//#define DESTROY_CIRC_BUFFER(b) free((b)->buf)
#define GET_BACKLOG_POS(b) ((b)->lpos - (b)->backlog)
#define GET_CURRENT_POS(b) ((b)->lpos)
#define GET_CURRENT_SAMPLE(b) GET_SAMPLE((b), GET_CURRENT_POS((b)))
#define GET_CURRENT_POS(b) ((b)->pos)
#define GET_CURRENT_LPOS(b) ((b)->lpos)
#define GET_CURRENT_SAMPLE(b) GET_SAMPLE((b), GET_CURRENT_LPOS((b)))
#define ADD_SAMPLE(b, s) \
do { \
INC_POS((b)); \
SET_SAMPLE((b), GET_CURRENT_POS((b)), (s)); \
SET_SAMPLE((b), GET_CURRENT_LPOS((b)), (s)); \
} while (0)
#endif

26
src/mod/applications/mod_avmd/mod_avmd.c
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@ -25,22 +25,9 @@
*
* This module detects voicemail beeps using a generalized approach.
*
* Mofdifications:
*
* Piotr Gregor <piotrek.gregor@gmail.com>
* FS-8808 : code refactor
* FS-8809 : fix MAP_POPULATE undeclared
* FS-8810 : fix float-int-float fast arc cosine
* mapping construction (reuse)
* FS-8852 : use predefined table length instead
* of hardcoded computation
* FS-8853 : enable change of resolution (and size)
* of fast arc cos table
* FS-8854 : initialize circular buffer
* FS-8855 : fix APPEND_SMA_VAL macro and avmd_process
* callback so that the variance of tone's
* frequency estimation is correctly
* calculated
* Modifications:
* Piotr Gregor <piotrek.gregor@gmail.com>:
* FS-8808, FS-8809, FS-8810, FS-8852, FS-8853, FS-8854, FS-8855
*/
#include <switch.h>
@ -91,7 +78,7 @@
/*! Maximum frequency as digital normalized frequency */
#define MAX_FREQUENCY_R(r) ((2.0 * M_PI * MAX_FREQUENCY) / (r))
/* decrease this value to eliminate false positives */
#define VARIANCE_THRESHOLD (0.001)
#define VARIANCE_THRESHOLD (0.0001)
#include "amplitude.h"
#include "buffer.h"
@ -233,7 +220,7 @@ static switch_bool_t avmd_callback(switch_media_bug_t * bug, void *user_data, sw
/*! \brief FreeSWITCH module loading function.
*
* @author Eric des Courtis
* @par Changes: Piotr Gregor, 07 Feb 2016 (FS-8809, FS-8810)
* @par Modifications: Piotr Gregor
* @return On success SWITCH_STATUS_SUCCES,
* on failure SWITCH_STATUS_TERM.
*/
@ -587,8 +574,7 @@ end:
/*! \brief Process one frame of data with avmd algorithm.
* @author Eric des Courtis
* @par Modifications: Piotr Gregor (FS-8852, FS-8853, FS-8854, FS-8855)
* (improved variance estimation calculation)
* @par Modifications: Piotr Gregor
* @param session An avmd session.
* @param frame An audio frame.
*/

5
src/mod/applications/mod_avmd/sma_buf.h
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@ -31,7 +31,8 @@ typedef struct {
#define GET_SMA_SAMPLE(b, p) ((b)->data[(p) % (b)->len])
#define SET_SMA_SAMPLE(b, p, v) ((b)->data[(p) % (b)->len] = (v))
#define GET_CURRENT_SMA_POS(b) ((b)->lpos)
#define GET_CURRENT_SMA_POS(b) ((b)->pos)
#define GET_CURRENT_SMA_LPOS(b) ((b)->lpos)
#define INC_SMA_POS(b) \
{ \
@ -52,6 +53,8 @@ typedef struct {
{ \
(b)->sma = 0.0; \
(void)memset((b)->data, 0, sizeof(BUFF_TYPE) * (b)->len); \
(b)->pos = 0; \
(b)->lpos = 0; \
}
/*