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echo-cancel: Make webrtc AGC start volume a modarg

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Allows for tuning based on the target hardware.
This commit is contained in:
Arun Raghavan 2016-02-17 19:47:07 +05:30
parent 8de7dfec14
commit 08afc36ae4
1 changed files with 16 additions and 3 deletions
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19
src/modules/echo-cancel/webrtc.cc
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@ -51,10 +51,10 @@ PA_C_DECL_END
#define DEFAULT_EXTENDED_FILTER false
#define DEFAULT_INTELLIGIBILITY_ENHANCER false
#define DEFAULT_EXPERIMENTAL_AGC false
#define DEFAULT_AGC_START_VOLUME 85
#define DEFAULT_TRACE false
#define WEBRTC_AGC_MAX_VOLUME 255
#define WEBRTC_AGC_START_VOLUME 85
static const char* const valid_modargs[] = {
"high_pass_filter",
@ -69,6 +69,7 @@ static const char* const valid_modargs[] = {
"extended_filter",
"intelligibility_enhancer",
"experimental_agc",
"agc_start_volume",
"trace",
NULL
};
@ -147,6 +148,7 @@ bool pa_webrtc_ec_init(pa_core *c, pa_echo_canceller *ec,
webrtc::Config config;
bool hpf, ns, agc, dgc, mobile, cn, vad, ext_filter, intelligibility, experimental_agc;
int rm = -1;
uint32_t agc_start_volume;
pa_modargs *ma;
bool trace = false;
@ -243,12 +245,23 @@ bool pa_webrtc_ec_init(pa_core *c, pa_echo_canceller *ec,
goto fail;
}
agc_start_volume = DEFAULT_AGC_START_VOLUME;
if (pa_modargs_get_value_u32(ma, "agc_start_volume", &agc_start_volume) < 0) {
pa_log("Failed to parse agc_start_volume value");
goto fail;
}
if (agc_start_volume > WEBRTC_AGC_MAX_VOLUME) {
pa_log("AGC start volume must not exceed %u", WEBRTC_AGC_MAX_VOLUME);
goto fail;
}
ec->params.webrtc.agc_start_volume = agc_start_volume;
if (ext_filter)
config.Set<webrtc::ExtendedFilter>(new webrtc::ExtendedFilter(true));
if (intelligibility)
pa_log_warn("The intelligibility enhancer is not currently supported");
if (experimental_agc)
config.Set<webrtc::ExperimentalAgc>(new webrtc::ExperimentalAgc(true, WEBRTC_AGC_START_VOLUME));
config.Set<webrtc::ExperimentalAgc>(new webrtc::ExperimentalAgc(true, ec->params.webrtc.agc_start_volume));
trace = DEFAULT_TRACE;
if (pa_modargs_get_value_boolean(ma, "trace", &trace) < 0) {
@ -390,7 +403,7 @@ void pa_webrtc_ec_record(pa_echo_canceller *ec, const uint8_t *rec, uint8_t *out
* needed to make sure that there's enough energy in the capture
* signal for the AGC to work */
ec->params.webrtc.first = false;
new_volume = WEBRTC_AGC_START_VOLUME;
new_volume = ec->params.webrtc.agc_start_volume;
} else {
new_volume = apm->gain_control()->stream_analog_level();
}