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60 lines
1.8 KiB
Text
60 lines
1.8 KiB
Text
/*!
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\page FileRenderer Fast file renderer for non-realtime MIDI file rendering
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Instead of creating an audio driver as described in section \ref MIDIPlayer
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one may chose to use the file renderer, which is the fastest way to
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synthesize MIDI files.
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\code
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fluid_settings_t* settings;
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fluid_synth_t* synth;
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fluid_player_t* player;
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fluid_file_renderer_t* renderer;
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settings = new_fluid_settings();
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// specify the file to store the audio to
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// make sure you compiled fluidsynth with libsndfile to get a real wave file
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// otherwise this file will only contain raw s16 stereo PCM
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fluid_settings_setstr(settings, "audio.file.name", "/path/to/output.wav");
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// use number of samples processed as timing source, rather than the system timer
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fluid_settings_setstr(settings, "player.timing-source", "sample");
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// since this is a non-realtime scenario, there is no need to pin the sample data
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fluid_settings_setint(settings, "synth.lock-memory", 0);
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synth = new_fluid_synth(settings);
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// *** loading of a soundfont omitted ***
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player = new_fluid_player(synth);
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fluid_player_add(player, "/path/to/midifile.mid");
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fluid_player_play(player);
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renderer = new_fluid_file_renderer (synth);
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while (fluid_player_get_status(player) == FLUID_PLAYER_PLAYING)
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{
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if (fluid_file_renderer_process_block(renderer) != FLUID_OK)
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{
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break;
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}
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}
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// just for sure: stop the playback explicitly and wait until finished
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fluid_player_stop(player);
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fluid_player_join(player);
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delete_fluid_file_renderer(renderer);
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delete_fluid_player(player);
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delete_fluid_synth(synth);
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delete_fluid_settings(settings);
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\endcode
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Various output files types are supported, if compiled with libsndfile. Those
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can be specified via the \c settings object as well. Refer to the
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\setting{audio} documentation for more \c audio.file\.\* options.
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*/
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