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Introduce useDecibel bool to GetVolume and SetVolume to give a better, built-in option for people to use decibels of attenuation instead of amplitude.

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This commit is contained in:
tt2468
2020-05-10 18:39:24 -07:00
parent b1df0dca97
commit 728ea16701
1 changed files with 38 additions and 15 deletions
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53
src/WSRequestHandler_Sources.cpp
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@ -156,12 +156,13 @@ RpcResponse WSRequestHandler::GetSourceTypesList(const RpcRequest& request)
}
/**
* Get the volume of the specified source.
* Get the volume of the specified source. Default response uses mul format, NOT SLIDER PERCENTAGE.
*
* @param {String} `source` Source name.
* @param {boolean (optional)} `useDecibel` Output volume in decibels of attenuation instead of amplitude/mul.
*
* @return {String} `name` Source name.
* @return {double} `volume` Volume of the source. Between `0.0` and `1.0`.
* @return {double} `volume` Volume of the source. Between `0.0` and `1.0` if using mul, under `0.0` if using dB (since it is attenuating).
* @return {boolean} `muted` Indicates whether the source is muted.
*
* @api requests
@ -175,6 +176,11 @@ RpcResponse WSRequestHandler::GetVolume(const RpcRequest& request)
return request.failed("missing request parameters");
}
bool useDecibel = false;
if (request.hasField("useDecibel")) {
useDecibel = obs_data_get_bool(request.parameters(), "useDecibel");
}
QString sourceName = obs_data_get_string(request.parameters(), "source");
if (sourceName.isEmpty()) {
return request.failed("invalid request parameters");
@ -187,33 +193,45 @@ RpcResponse WSRequestHandler::GetVolume(const RpcRequest& request)
OBSDataAutoRelease response = obs_data_create();
obs_data_set_string(response, "name", obs_source_get_name(source));
obs_data_set_double(response, "volume", obs_source_get_volume(source));
if (!useDecibel) {
obs_data_set_double(response, "volume", obs_source_get_volume(source));
} else {
float volume = obs_source_get_volume(source);
obs_data_set_double(response, "volume", obs_mul_to_db(volume));
}
obs_data_set_bool(response, "muted", obs_source_muted(source));
return request.success(response);
}
/**
* Set the volume of the specified source.
*
* @param {String} `source` Source name.
* @param {double} `volume` Desired volume. Must be between `0.0` and `1.0`.
*
* @api requests
* @name SetVolume
* @category sources
* @since 4.0.0
*/
* Set the volume of the specified source. Default request format uses mul, NOT SLIDER PERCENTAGE.
*
* @param {String} `source` Source name.
* @param {double} `volume` Desired volume. Must be between `0.0` and `1.0` for mul, and under 0.0 for dB. Note: OBS will interpret dB values under -100.0 as Inf.
* @param {boolean (optional)} `useDecibel` Interperet `volume` data as decibels instead of amplitude/mul.
*
* @api requests
* @name SetVolume
* @category sources
* @since 4.0.0
*/
RpcResponse WSRequestHandler::SetVolume(const RpcRequest& request)
{
if (!request.hasField("source") || !request.hasField("volume")) {
return request.failed("missing request parameters");
}
bool useDecibel = false;
if (request.hasField("useDecibel")) {
useDecibel = obs_data_get_bool(request.parameters(), "useDecibel");
}
QString sourceName = obs_data_get_string(request.parameters(), "source");
float sourceVolume = obs_data_get_double(request.parameters(), "volume");
if (sourceName.isEmpty() || sourceVolume < 0.0 || sourceVolume > 1.0) {
if ((useDecibel && sourceVolume > 0.0) ||
(!useDecibel && (sourceVolume < 0.0 || sourceVolume > 1.0)) || (sourceName.isEmpty())) {
return request.failed("invalid request parameters");
}
@ -222,7 +240,12 @@ RpcResponse WSRequestHandler::SetVolume(const RpcRequest& request)
return request.failed("specified source doesn't exist");
}
obs_source_set_volume(source, sourceVolume);
if (!useDecibel) {
obs_source_set_volume(source, sourceVolume);
} else {
float mul = obs_db_to_mul(sourceVolume);
obs_source_set_volume(source, mul);
}
return request.success();
}