public void openAudioFileToolStripMenuItem_Click(object sender, EventArgs e)
{
//for second load music
OpenFileDialog open = new OpenFileDialog();
open_temp = open;
open.Filter = "(*.wav;*.mp3)| *.wav; *.mp3";
if (open.ShowDialog() != DialogResult.OK)
{
return;
}
if (audio_player != null && audio_player.stop_flag == false)
{
audio_player.StopPlaying();
}
Get_audio_file_information_and_refresh_reader();
sampling_rate = Audio_reader.WaveFormat.SampleRate;
int bits_per_sample = Audio_reader.WaveFormat.BitsPerSample;
audio_channel = Audio_reader.WaveFormat.Channels;
int buflen = (int)(Math.Floor((double)Audio_reader.Length));
//refresh effect parameter
equalizer.sampling_rate = sampling_rate;
equalizer.samples_per_frame = Samples_per_frame;
equalizer.audio_channels = audio_channel;
equalizer.update_coef();
equalizer.init_memory();
three_band_drc.update_music_information(sampling_rate, Samples_per_frame, audio_channel);
real_time_fft.ini_parameter(sampling_rate, Samples_per_frame, audio_channel);
//
bgw_play = new BackgroundWorker();
audio_player = new audio_player_with_effect_class(real_time_fft, three_band_drc, equalizer, bgw_play, Audio_reader, buflen, In_total_byte_per_frame, Samples_per_frame);
bgw_play.DoWork += new DoWorkEventHandler(bgw_start_playing);
bgw_play.ProgressChanged += new ProgressChangedEventHandler(bgw_get_current_time);
bgw_play.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bgw_run_worker_complete);
bgw_play.WorkerReportsProgress = true;
bgw_play.WorkerSupportsCancellation = true;
Label_current_time.Text = (string)"00:00";
trackbar_playing_time.Value = 0;
start_playing_button.Enabled = true;
Pause_button.Enabled = false;
stop_button.Enabled = false;
volume.Enabled = true;
volume_UI = volume.Value;
audio_player.volume = (float)(((double)volume_UI) / 100);
peak_meter.Value = 0;
}
