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tweak agc

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This commit is contained in:
Anthony Minessale 2011-02-17 18:21:11 -06:00
parent 5e6123ef5f
commit b8531ea873
1 changed files with 69 additions and 71 deletions
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140
src/mod/applications/mod_conference/mod_conference.c
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@ -266,6 +266,7 @@ typedef struct conference_obj {
switch_thread_rwlock_t *rwlock;
uint32_t count;
int32_t energy_level;
int32_t agc_energy_level;
uint8_t min;
switch_speech_handle_t lsh;
switch_speech_handle_t *sh;
@ -326,6 +327,7 @@ struct conference_member {
uint32_t frame_size;
uint8_t *mux_frame;
uint32_t read;
uint32_t vol_period;
int32_t energy_level;
int32_t agc_volume_in_level;
int32_t volume_in_level;
@ -345,7 +347,7 @@ struct conference_member {
uint32_t verbose_events;
uint32_t avg_score;
uint32_t avg_itt;
uint32_t avg_tally;
uint32_t avg_tally;
struct conference_member *next;
switch_ivr_dmachine_t *dmachine;
};
@ -1940,6 +1942,17 @@ static void conference_loop_fn_hangup(conference_member_t *member, caller_contro
switch_clear_flag_locked(member, MFLAG_RUNNING);
}
static void clear_avg(conference_member_t *member)
{
member->agc_volume_in_level = 0;
member->avg_score = 0;
member->avg_itt = 0;
member->avg_tally = 0;
member->nt_tally = 0;
}
/* marshall frames from the call leg to the conference thread for muxing to other call legs */
static void *SWITCH_THREAD_FUNC conference_loop_input(switch_thread_t *thread, void *obj)
{
@ -1948,7 +1961,7 @@ static void *SWITCH_THREAD_FUNC conference_loop_input(switch_thread_t *thread, v
switch_channel_t *channel;
switch_status_t status;
switch_frame_t *read_frame = NULL;
uint32_t hangover = 40, hangunder = 15, hangover_hits = 0, hangunder_hits = 0, energy_level = 0, diff_level = 400;
uint32_t hangover = 40, hangunder = 5, hangover_hits = 0, hangunder_hits = 0, energy_level = 0, diff_level = 400;
switch_codec_implementation_t read_impl = { 0 };
switch_core_session_t *session = member->session;
int check_floor_change;
@ -1991,6 +2004,7 @@ static void *SWITCH_THREAD_FUNC conference_loop_input(switch_thread_t *thread, v
if (++hangover_hits >= hangover) {
hangover_hits = hangunder_hits = 0;
switch_clear_flag_locked(member, MFLAG_TALKING);
clear_avg(member);
if (test_eflag(member->conference, EFLAG_STOP_TALKING) &&
switch_event_create_subclass(&event, SWITCH_EVENT_CUSTOM, CONF_EVENT_MAINT) == SWITCH_STATUS_SUCCESS) {
@ -2006,19 +2020,9 @@ static void *SWITCH_THREAD_FUNC conference_loop_input(switch_thread_t *thread, v
/* Check for input volume adjustments */
if (!member->conference->agc_level) {
member->agc_volume_in_level = 0;
member->avg_score = 0;
member->avg_itt = 0;
member->avg_tally = 0;
}
if (member->conference->agc_level && member->agc_volume_in_level) {
switch_change_sln_volume(read_frame->data, read_frame->datalen / 2, member->agc_volume_in_level);
} else if (member->volume_in_level) {
switch_change_sln_volume(read_frame->data, read_frame->datalen / 2, member->volume_in_level);
clear_avg(member);
}
energy_level = member->energy_level;
/* if the member can speak, compute the audio energy level and */
@ -2027,7 +2031,8 @@ static void *SWITCH_THREAD_FUNC conference_loop_input(switch_thread_t *thread, v
uint32_t energy = 0, i = 0, samples = 0, j = 0;
int16_t *data;
int divisor = 0;
int one_sec = (read_impl.actual_samples_per_second / read_impl.samples_per_packet);
int agc_period = (read_impl.actual_samples_per_second / read_impl.samples_per_packet) / 2;
int combined_vol = 0;
data = read_frame->data;
@ -2037,77 +2042,62 @@ static void *SWITCH_THREAD_FUNC conference_loop_input(switch_thread_t *thread, v
member->score = 0;
combined_vol = member->agc_volume_in_level;
if (member->conference->agc_level) {
combined_vol += member->agc_volume_in_level;
}
if (combined_vol) {
switch_change_sln_volume(read_frame->data, read_frame->datalen / 2, combined_vol);
}
if ((samples = read_frame->datalen / sizeof(*data))) {
for (i = 0; i < samples; i++) {
energy += abs(data[j]);
j += read_impl.number_of_channels;
}
member->score = energy / (samples / divisor);
member->avg_tally += member->score;
member->avg_score = member->avg_tally / ++member->avg_itt;
if (!member->avg_itt) member->avg_tally = member->score;
}
if (member->vol_period) {
member->vol_period--;
}
if (member->conference->agc_level && member->score &&
switch_test_flag(member, MFLAG_TALKING) &&
switch_test_flag(member, MFLAG_CAN_SPEAK) &&
member->score > member->energy_level
member->score > member->conference->agc_energy_level
) {
int diff = member->conference->agc_level - member->score;
if (abs(diff) >= 200) {
member->agc_concur++;
} else {
member->agc_concur = 0;
}
#if 0
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG8,
"conf %s FOO %d %d %d %d %d\n",
member->conference->name,
member->id, diff, member->conference->agc_level,
member->score, member->agc_volume_in_level);
#endif
member->avg_tally += member->score;
member->avg_itt++;
if (!member->avg_itt) member->avg_itt++;
member->avg_score = member->avg_tally / member->avg_itt;
if (member->agc_concur >= one_sec) {
if (member->score < member->conference->agc_level) {
member->agc_volume_in_level++;
switch_normalize_volume(member->agc_volume_in_level);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG7,
"conf %s AGC +++ %d %d %d %d %d\n",
member->conference->name,
member->id, diff, member->conference->agc_level,
member->score, member->agc_volume_in_level);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG7,
"conf %s AGC %d %d %d %d %d %d\n",
member->conference->name,
member->id, member->conference->agc_level - member->avg_score, member->conference->agc_level,
member->score, member->avg_score, member->agc_volume_in_level);
} else {
member->agc_volume_in_level--;
switch_normalize_volume(member->agc_volume_in_level);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG7,
"conf %s AGC --- %d %d %d %d %d\n",
member->conference->name,
member->id, diff, member->conference->agc_level,
member->score, member->agc_volume_in_level);
if (++member->nt_tally >= agc_period) {
if (!member->vol_period) {
if (member->avg_score < member->conference->agc_level) {
member->agc_volume_in_level++;
switch_normalize_volume(member->agc_volume_in_level);
member->vol_period = (read_impl.actual_samples_per_second / read_impl.samples_per_packet) * 2;
}
if (member->avg_score > member->conference->agc_level) {
member->agc_volume_in_level--;
switch_normalize_volume(member->agc_volume_in_level);
member->vol_period = (read_impl.actual_samples_per_second / read_impl.samples_per_packet) * 2;
}
}
member->agc_concur = 0;
}
member->nt_tally = 0;
} else {
member->nt_tally++;
member->agc_concur = 0;
if (member->nt_tally > one_sec * 5) {
member->agc_volume_in_level = 0;
member->nt_tally = 0;
member->avg_itt = 0;
member->avg_tally = 0;
member->avg_score = member->score;
}
}
member->score_iir = (int) (((1.0 - SCORE_DECAY) * (float) member->score) + (SCORE_DECAY * (float) member->score_iir));
@ -2162,6 +2152,7 @@ static void *SWITCH_THREAD_FUNC conference_loop_input(switch_thread_t *thread, v
if (++hangover_hits >= hangover) {
hangover_hits = hangunder_hits = 0;
switch_clear_flag_locked(member, MFLAG_TALKING);
clear_avg(member);
if (test_eflag(member->conference, EFLAG_STOP_TALKING) &&
switch_event_create_subclass(&event, SWITCH_EVENT_CUSTOM, CONF_EVENT_MAINT) == SWITCH_STATUS_SUCCESS) {
@ -3421,7 +3412,7 @@ static switch_status_t conf_api_sub_mute(conference_member_t *member, switch_str
static switch_status_t conf_api_sub_agc(conference_obj_t *conference, switch_stream_handle_t *stream, int argc, char **argv)
{
int level;
int level, energy_level;
int on = 0;
if (argc == 2) {
@ -3439,7 +3430,13 @@ static switch_status_t conf_api_sub_agc(conference_obj_t *conference, switch_str
if (argc > 3) {
level = atoi(argv[3]);
} else {
level = 2000;
level = 650;
}
if (argc > 4) {
energy_level = atoi(argv[4]);
} else {
energy_level = 100;
}
if (level > conference->energy_level) {
@ -3447,9 +3444,10 @@ static switch_status_t conf_api_sub_agc(conference_obj_t *conference, switch_str
conference->avg_itt = 0;
conference->avg_tally = 0;
conference->agc_level = level;
conference->agc_energy_level = energy_level;
if (stream) {
stream->write_function(stream, "OK AGC ENABLED %d\n", conference->agc_level);
stream->write_function(stream, "OK AGC ENABLED %d %d\n", conference->agc_level, conference->agc_energy_level);
}
} else {
@ -3823,7 +3821,7 @@ static void conference_xlist(conference_obj_t *conference, switch_xml_t x_confer
if (conference->agc_level) {
char tmp[30] = "";
switch_snprintf(tmp, sizeof(tmp), "%d", conference->agc_level);
switch_snprintf(tmp, sizeof(tmp), "%d:%d", conference->agc_level, conference->agc_energy_level);
switch_xml_set_attr_d_buf(x_conference, "agc", tmp);
}