player wrapper: properly apply playback speed

Apply the playback speed to all players and set it when loading as well.
This ensures correct timing calculations between "file load" and "start",
which is required by in_vgm.

player/playera.cpp

@@ -192,8 +192,8 @@ double PlayerA::GetPlaybackSpeed(void) const
 void PlayerA::SetPlaybackSpeed(double speed)
 {
 	_config.pbSpeed = speed;
-	if (_player != NULL)
-		_player->SetPlaybackSpeed(_config.pbSpeed);
+	for (size_t curPlr = 0; curPlr < _avbPlrs.size(); curPlr++)
+		_avbPlrs[curPlr]->SetSampleRate(_smplRate);
 	return;
 }
 
@@ -257,8 +257,9 @@ void PlayerA::SetConfiguration(const PlayerA::Config& config)
 	double oldPbSpeed = _config.pbSpeed;
 
 	_config = config;
-	if (_player != NULL && oldPbSpeed != _config.pbSpeed)
-		_player->SetPlaybackSpeed(_config.pbSpeed);
+	SetMasterVolume(_config.masterVol);
+	if (oldPbSpeed != _config.pbSpeed)
+		SetPlaybackSpeed(_config.pbSpeed);	// refresh in all players
 	return;
 }
 
@@ -389,6 +390,10 @@ UINT8 PlayerA::LoadFile(DATA_LOADER* dLoad)
 	if (_player == NULL)
 		return 0xFF;
 
+	// set the configuration so that the configuration is loaded properly
+	_player->SetSampleRate(_smplRate);
+	_player->SetPlaybackSpeed(_config.pbSpeed);
+
 	UINT8 retVal = _player->LoadFile(dLoad);
 	if (retVal >= 0x80)
 		return retVal;