CODEWITHSUNDEEP
javavlcj
David George
David George

Reputation: 3752

Get FPS from video using vlcj

Is there a way to get the frames per second from vlcj without starting the video playing or displaying the video itself?

Upvotes: 2

Views: 619

Answers (2)

Prime541
Prime541

Reputation: 31

// Create a VLCJ component and a window (if having a GUI is acceptable for you)
EmbeddedMediaPlayerComponent mediaPlayerComponent = new EmbeddedMediaPlayerComponent();
JFrame frame = new JFrame();
frame.setContentPane(mediaPlayerComponent);

// Make sure the video is not visible nor audible
mediaPlayerComponent.mediaPlayer().audio().setMute(true);
mediaPlayerComponent.mediaPlayer().audio().setVolume(0);
mediaPlayerComponent.setVisible(false);

// Load the file. startXXX() functions are blocking calls, rather than playXXX(), until the video is ready.
frame.setVisible(true);
mediaPlayerComponent.mediaPlayer().media().startPaused("C:\\video.mp4");

// if there are several video tracks, make sure to take the index of the track with the same "id" value.
int index = 0;
for (int i = 0; i < mediaPlayerComponent.mediaPlayer().media().info().videoTracks().size(); ++i) {
  if (mediaPlayerComponent.mediaPlayer().media().info().videoTracks().get(i).id() == mediaPlayerComponent.mediaPlayer().video().track()) {
    index = i;
    break;
  }
}

// Get the frame rate (images per second)
double imgRate = (double)mediaPlayerComponent.mediaPlayer().media().info().videoTracks().get(index).frameRate() / mediaPlayerComponent.mediaPlayer().media().info().videoTracks().get(index).frameRateBase();

Upvotes: 1

caprica
caprica

Reputation: 4146

No, I'm afraid there is no way to do that.

This is not a limitation of vlcj, vlcj provides whatever LibVLC provides.

For applications where I need that sort of information, I resort to running something like the "MediaInfo" tool as a separate process (using commons-exec) and parsing the output.

https://mediaarea.net/en/MediaInfo

Upvotes: 2

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