 
 
 
Description: Obtains information or requests a new position within a file.
Parameters:
  mode: 1, requests a new position in seconds.
           val: seconds.
  mode: 2, requests a new position in images.
           val: image number.
  mode: 0, requests information about the file being played.
Returns: If mode = 0, returns the following values:
width, height, planes, frames_second, total_frames, id_image_compression, quality, file_frequency, machine_frequency, total_samples, id_sound_compression, version_player, count_seconds, num_frame, play.The values are separated by \0, with \0\0 at the end.
Comment: Similar to the 'AP' message.