AUDIO ONLY PLAYBACK OF A DISK HAVING BOTH AUDIO AND VIDEO RECORDINGS
A system and method for playing audio only in a disk player. The disc player is configured to read data from disks formatted according to a selected audio and video standard. The system includes a file reader to read files of audio and video files based on the audio and video standard. A stream parser identifies audio data, video data and sub-picture data. An audio decoder decodes the audio data according to the audio standard. A video stub receives the video data and leaves the video data unprocessed. A sub-picture menu processor extracts menu information. A user interface system to use the menu information to configure at least one user input to play audio-only from the disk according to the menu information.
1 . A system for playing audio only in a disk player configured to read data from disks formatted according to a selected audio and video standard, the system comprising:
a file reader to read files of audio and video files based on the audio and video standard;
a stream parser to identify audio data, video data and sub-picture data;
an audio decoder to decode the audio data according to the audio standard;
a video stub to receive the video data and leave the video data unprocessed;
a sub-picture menu processor to extract menu information; and
a user interface system to use the menu information to configure at least one user input to play audio-only from the disk according to the menu information.
2 . The system of claim 1 further comprising a text formatter to convert the menu information to text for display on a text display.
3 . The system of claim 1 further comprising a controller to receive a signal from the at least one user input and to control the disc player to play audio only from a location on the disc according to the user input.
4 . The system of claim 3 comprising:
a plurality of user control inputs corresponding to a control function selected from a power on/off function, a next chapter function, a previous chapter function, a play function, a stop/pause function, a go to function, and a trick play function.
5 . The system of claim 1 further comprising:
a human-machine interface to control audio-only playback according to audio track information received from the disc and based on user inputs.
6 . The system of claim 1 further comprising:
a chapter locations database containing audio track information related to a user control input, the chapter locations database being used by the user interface system to control the disk player based on functions corresponding to the user inputs.
7 . The system of claim 1 further comprising:
a multimedia engine connected to a disc player application, the multi-media engine including a media detect module to detect a disc insertion in the disc player, the media detect module including the stream parser, the multi-media engine configured to provide the disc player application with audio track information.
8 . The system of claim 7 wherein the multi-media engine includes an interface to a database and functions to store audio track information in the database when a disc is inserted.
9 . The system of claim 8 where the multi-media engine includes an interface to a human-machine interface, the multi-media engine configured to communicate audio track information to the human machine interface.
10 . The system of claim 1 further comprising:
a user interface panel having a plurality of buttons having a function for navigating the audio tracks.
11 . The system of claim 10 wherein the user interface panel further includes:
a text display for displaying text identifying audio track locations corresponding to the buttons on the panel.
12 . A method for audio-only playback of a disc having audio and video information, the method comprising:
parsing the audio and video information to identify video information, audio information and sub-picture data;
decoding the audio data;
leaving the video information unprocessed;
extracting menu information in the sub-picture data;
using the menu information to obtain audio track information;
storing the audio track information and associating the audio track information with user input in a database; and
receiving the user input from a user to select an audio track to play and initiating playback at the audio track.
13 . The method of claim 12 where the step of receiving the user input comprises:
waiting for the user input;
testing the user input for audio play instructions;
retrieving audio track location information based on the audio play instruction;
positioning a disc player read head at the audio track location; and
reading data from the disc.
14 . A computer readable medium having software for providing audio-only playback capability of a disc comprising:
logic configured for parsing the audio and video information to identify video information, audio information and sub-picture data;
logic configured for decoding the audio data;
logic configured for leaving the video information unprocessed;
logic configured for extracting menu information in the sub-picture data;
logic configured for using the menu information to obtain audio track information;
logic configured for storing the audio track information and associating the audio track information with user input in a database; and
logic configured for receiving the user input from a user to select an audio track to play and initiating playback at the audio track.
15 . The computer readable medium of claim 14 where the logic configured for receiving the user input comprises:
logic configured for waiting for the user input;
logic configured for testing the user input for audio play instructions;
logic configured for retrieving audio track location information based on the audio play instruction;
logic configured for positioning a disc player read head at the audio track location; and
logic configured for reading data from the disc.
16 . A disc player comprising:
a read bead coupled to a file reader to read files of audio and video files based on an audio and video standard;
a user interface panel having a plurality of buttons for controlling operation of the disc player;
a controller to receive user inputs via the plurality of buttons and to control audio playback based on the user inputs, the controller having:
a stream parser to identify audio data, video data and sub-picture data;
an audio decoder to decode the audio data according to the audio standard;
a video stub to receive the video data and leave the video data unprocessed;
a sub-picture menu processor to extract menu information; and
a human machine interface to configure at least one user input to play audio-only from the disk according to the menu information.
17 . The disc player of claim 16 where the controller receives a signal from the at least one user input and to control the disc player to play audio from a location on the disc according to the user input.
18 . The system of claim 17 comprising:
a plurality of user control inputs corresponding to a control function selected from a power on/off function, a next chapter function, a previous chapter function, a play function, a stop/pause function, a go to function, and a trick play function.