fluidsynth: implement channel aftertouch event

(cherry picked from commit f749d30ba2541702a1b601d85a714a6fc1d085e6)
(cherry picked from commit dc07f6a00abff488c9e8a9eaefcd26c6569ca2a2)

modules/codec/fluidsynth.c

@@ -198,12 +198,16 @@ static aout_buffer_t *DecodeBlock (decoder_t *p_dec, block_t **pp_block)
         case 0x90:
             fluid_synth_noteon (p_sys->synth, channel, p1, p2);
             break;
+        /*case 0xA0: note aftertouch not implemented */
         case 0xB0:
             fluid_synth_cc (p_sys->synth, channel, p1, p2);
             break;
         case 0xC0:
             fluid_synth_program_change (p_sys->synth, channel, p1);
             break;
+        case 0xD0:
+            fluid_synth_channel_pressure (p_sys->synth, channel, p1);
+            break;
         case 0xE0:
             fluid_synth_pitch_bend (p_sys->synth, channel, (p2 << 7) | p1);
             break;