/*!

\page FileRenderer Fast file renderer for non-realtime MIDI file rendering

Instead of creating an audio driver as described in section \ref MIDIPlayer
one may chose to use the file renderer, which is the fastest way to
synthesize MIDI files.

\code
fluid_settings_t* settings;
fluid_synth_t* synth;
fluid_player_t* player;
fluid_file_renderer_t* renderer;

settings = new_fluid_settings();

// specify the file to store the audio to
// make sure you compiled fluidsynth with libsndfile to get a real wave file
// otherwise this file will only contain raw s16 stereo PCM
fluid_settings_setstr(settings, "audio.file.name", "/path/to/output.wav");

// use number of samples processed as timing source, rather than the system timer
fluid_settings_setstr(settings, "player.timing-source", "sample");

// since this is a non-realtime scenario, there is no need to pin the sample data
fluid_settings_setint(settings, "synth.lock-memory", 0);

synth = new_fluid_synth(settings);

// *** loading of a soundfont omitted ***

player = new_fluid_player(synth);
fluid_player_add(player, "/path/to/midifile.mid");
fluid_player_play(player);

renderer = new_fluid_file_renderer (synth);

while (fluid_player_get_status(player) == FLUID_PLAYER_PLAYING)
{
    if (fluid_file_renderer_process_block(renderer) != FLUID_OK)
    {
        break;
    }
}

// just for sure: stop the playback explicitly and wait until finished
fluid_player_stop(player);
fluid_player_join(player);

delete_fluid_file_renderer(renderer);
delete_fluid_player(player);
delete_fluid_synth(synth);
delete_fluid_settings(settings);
\endcode

Various output files types are supported, if compiled with libsndfile. Those
can be specified via the \c settings object as well. Refer to the \ref
settings_audio documentation for more \c audio.file\.\* options.

*/