Mixer: Allow Mono Pan module to be added a stereo chain. This converts the signal to mono and then pans the result. Useful for auditioning a mix in mono.
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@ -66,8 +66,22 @@ Mono_Pan_Module::handle_sample_rate_change ( nframes_t n )
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}
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bool
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Mono_Pan_Module::configure_inputs ( int )
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Mono_Pan_Module::configure_inputs ( int n )
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{
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THREAD_ASSERT( UI );
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int on = audio_input.size();
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if ( n > on )
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{
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add_port( Port( this, Port::INPUT, Port::AUDIO ) );
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}
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else if ( n < on )
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{
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audio_input.back().disconnect();
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audio_input.pop_back();
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}
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return true;
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}
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@ -82,7 +96,10 @@ Mono_Pan_Module::process ( nframes_t nframes )
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{
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if ( unlikely( bypass() ) )
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{
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buffer_copy( (sample_t*)audio_output[1].buffer(), (sample_t*)audio_input[0].buffer(), nframes );
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if ( audio_input.size() == 1 )
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{
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buffer_copy( (sample_t*)audio_output[1].buffer(), (sample_t*)audio_input[0].buffer(), nframes );
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}
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}
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else
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{
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@ -90,11 +107,18 @@ Mono_Pan_Module::process ( nframes_t nframes )
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sample_t gainbuf[nframes];
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bool use_gainbuf = smoothing.apply( gainbuf, nframes, gt );
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if ( audio_input.size() == 2 )
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{
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/* convert stereo to mono */
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buffer_mix( (sample_t*)audio_input[0].buffer(),
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(sample_t*)audio_input[1].buffer(),
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nframes );
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}
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if ( unlikely( use_gainbuf ) )
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{
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/* right channel */
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/* right channel */
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buffer_copy_and_apply_gain_buffer( (sample_t*)audio_output[1].buffer(),
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(sample_t*)audio_input[0].buffer(),
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gainbuf,
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@ -33,7 +33,7 @@ public:
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const char *name ( void ) const { return "Mono Pan"; }
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int can_support_inputs ( int n ) { return ( n == 1 ) ? 2 : -1; }
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int can_support_inputs ( int n ) { return ( n == 1 || n == 2 ) ? 2 : -1; }
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bool configure_inputs ( int n );
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LOG_CREATE_FUNC( Mono_Pan_Module );
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