qt-faststart is not working / implemented

I just wrote a small piece of code to make qt-faststart work.

Add in the TranscoderAbstractionFactoryFfmpeg Class in the function execute behind

    // Lets check to make sure our file exists, if not error out
    $output_file = $this->settings['base_url'] . '/' . $this->settings['filename'];

this. But there is currently no check if qt-faststart is installed. This would be nessesary to automatically provide this function.

    // qt-faststart
    $qt_faststart_output_file = $this->settings['base_url'] . '/qt-' . $this->settings['filename'];
    $qt_faststart_cmd = 'qt-faststart '. drupal_realpath($output_file) . ' '.drupal_realpath($qt_faststart_output_file);
    exec($qt_faststart_cmd);
    file_unmanaged_delete(drupal_realpath($output_file));
    $this->settings['filename'] = 'qt-' . $this->settings['filename'];
    $output_file = $qt_faststart_output_file;

Now your movies will played directly after clicking the play button instead of waiting until your movie is completely downloaded.

I hope this will help a little to make video better for all.

I think now it would be better not to rename the file with the prefix qt- this could cause maybe problems with the update of the video module. So I think it would be better to make a tmp copy and delete te converted video so that qt-faststart can use the given name. I work on it right now. So it will be seemless for further improvements like qt.faststart check or similar. I will post my code here later.

This is now my version without filename changes. Tested and working for me.

    // qt-faststart
    $qt_faststart_file = $this->settings['base_url'] . '/qt-' . $this->settings['filename'];
    file_unmanaged_copy(drupal_realpath($output_file), drupal_realpath($qt_faststart_file), FILE_EXISTS_REPLACE);
    file_unmanaged_delete(drupal_realpath($output_file));
    $qt_faststart_cmd = 'qt-faststart '. drupal_realpath($qt_faststart_file) . ' '.drupal_realpath($output_file);
    exec($qt_faststart_cmd); 
    file_unmanaged_delete(drupal_realpath($qt_faststart_file));

This is qt-faststart implemtation of the video 2.5 version for all who needs this.

Add this code in the TranscoderAbstractionFactoryFfmpeg.inc after $output_file_rp = drupal_realpath($output_file); in line 226

    // qt-faststart
    $qt_faststart_file = drupal_realpath($this->settings['base_url'] . '/qt-' . $this->settings['filename']);
    file_unmanaged_copy($output_file_rp, $qt_faststart_file), FILE_EXISTS_REPLACE);
    file_unmanaged_delete($output_file_rp);
    $qt_faststart_cmd = 'qt-faststart '. $qt_faststart_file . ' '.$output_file_rp;
    exec($qt_faststart_cmd); 
    file_unmanaged_delete($qt_faststart_file);

Ah thx for the information. I didn't know that and there is a small mistake in the code.
So is it enough for checking the file ending (.mp4)? Maybe it should be placed in an own function that also checks if it is a usable codec and offers the ability to extend it or for further debugging and developing?

    // qt-faststart
    $qt_faststart_file = drupal_realpath($this->settings['base_url'] . '/qt-' . $this->settings['filename']);
    file_unmanaged_copy($output_file_rp, $qt_faststart_file, FILE_EXISTS_REPLACE);
    file_unmanaged_delete($output_file_rp);
    $qt_faststart_cmd = 'qt-faststart '. $qt_faststart_file . ' '.$output_file_rp;
    exec($qt_faststart_cmd);
    file_unmanaged_delete($qt_faststart_file);