CN100385558C - Dubbing method for re-recordable discs - Google Patents

Abstract

The present invention relates to a dubbing method for a re-recordable optical disc. It simultaneously records the main A/V data stream and dubbing audio data stream on a recording medium such as a high-density re-recordable disc (BD-RW), and at the same time, automatically and continuously generates the main A/V data for playback control Each actual playback list and virtual playback list of stream and dubbing audio data stream, thereby enabling the user to easily record and manage the dubbing audio data stream corresponding to the main A/V data stream of the re-recordable disc. The invention has high practical value.

Description

Dubbing method for re-recordable discs

(1) Technical field

The present invention relates to a dubbing method for re-recordable optical discs, in particular to a method for managing the recording and playback of dubbing audio data streams corresponding to the main A/V data streams recorded and stored in recording media such as high-density re-recordable optical discs A dubbing method for a re-recordable optical disc.

(2) Background technology

Recently, with the standardized production of new high-density re-recordable optical discs that can record and store a large amount of high-quality video data and high-quality audio data, such as "Blu-ray disc rewritable" (hereinafter referred to as BD-RW) The rapid development of the industry, and the development, listing and popularization of related products have become a general direction of current development.

Figure 1 is a partial structural diagram of an optical disc device such as a video disc recorder VDR (Video Disc Recorder) required for signal recording and playback of recording media such as BD-RW. Above-mentioned optical disk device comprises following structure: optical pick-up (pick up) 2, reads the signal recorded on recording medium 1 such as BD-RW or records the data flow through the signal processing of recording input from the outside; VDR system 3, picks up above-mentioned light The signal read by the device 2 is used for playback signal processing, or the externally input data stream is converted into a data stream suitable for recording. The working state of the VDR system 3 is controlled by the signal input by the operator; the encoder (encoder) 4. Decode the externally input analog signal and send it to the above-mentioned VDR system 3 .

In addition, the VDR system 3 in the optical disc device having the above structure additionally performs recording management of the recorded audio data stream corresponding to the A/V data stream recorded and stored on the VD-RW1. This will be described in detail below.

FIG. 2 is a connection state diagram between a real play list (Real play list) and a virtual play list (virtual play list) of a re-recordable disc (BD-RW). The A/V data stream recorded and stored on the above-mentioned BD-RW optical disc 1, for example, has time continuity and is recorded and stored in units of clips (Clip) The main A/V data stream of the first clip (Clip 1's) The main A/V data stream, that is, Clip 1 main A/V stream), as shown in Figure 2, is recorded and played through the first real play list (Real play list). The first actual play list contains read play control information recorded with the main A/V data stream.

In addition, the dubbing audio data stream that is connected to the main A/V data stream of Clip 1 corresponding to the above-mentioned first actual playback list and is additionally recorded is recorded and stored as a dubbing audio data stream (Clip 2 ) of a new second cut piece. Dubbing audio data stream, that is, Clip 2 auxiliary audio stream or dubbed audio stream), in addition, the above-mentioned Clip 2 dubbing audio data stream is recorded and played through a new second real playlist (Real playlist).

In addition, in the VDR system 3 of the above-mentioned optical disc device, in order to make the actual playlist recorded and managed by the above-mentioned process be arbitrarily selected by the user and edited and played, a first virtual playlist (Virtual playlist 1) is generated and recorded. In the above-mentioned first virtual play list (virtual playlist 1), as shown in Figure 2, the play item (Play Item) (Play Item) (for reading playing and above-mentioned first actual play list that is connected with above-mentioned first actual play list can be recorded simultaneously) main A/V data stream) and the sub-play item (sub play item) of the sub-path (for reading and playing the Clip 2 dubbing audio data stream connected to the second actual play list above).

Therefore, in the VDR system 3 of the above-mentioned optical disc device, during a series of playback operations such as reading and playing the Clip 1 main A/V data stream connected to the first actual playback list above, according to the requirements of the user, it can be Select to play the Clip 2 dubbing audio data stream connected to the above-mentioned second actual playback directory, so as a result, the user can simultaneously enjoy the video image of the above-mentioned Clip 1 main A/V data stream and the above-mentioned Clip 2 dubbing audio data stream.

But above-mentioned optical disc device is after recording and storing above-mentioned main A/V data stream and the first real play list (Real playlist 1), by user's editing operation, because will generate and record above-mentioned dubbing audio data stream and the second real play list (Real playlist 2) and the virtual playlist (Virtual playlist) connected with the first actual playlist and the second actual playlist image respectively, so it will happen that the user cannot record the corresponding while recording the main A/V stream Problems with dubbing audio data streaming.

(3) Contents of the invention

The present invention was made in order to solve the above-mentioned problems. The object of the present invention is to provide a dubbing method for a high-density re-recordable optical disc. The method of the present invention is to record the main A/V data stream in recording media such as high-density re-recordable discs (BD-RW), and also automatically generate records for controlling the main A/V data stream and dubbing audio data stream. A dubbing method for a re-recordable optical disc of an actual playlist and a virtual playlist for playback.

In order to achieve the above object, the method for dubbing a re-recordable optical disc of the present invention is characterized in that it comprises the following three steps of operation:

The first step is to simultaneously record the main A/V data stream and the dubbing audio data stream on the re-recordable optical disc;

Second step, generate and record the first actual playlist for playing the described main A/V data stream of control and generate the second actual playlist for reading and playing the dubbing audio data stream;

The third step is to generate a virtual playlist including a play item (playitem) connected to the first actual playlist and a sub play item (sub play item) connected to the second actual playlist.

Effect of the present invention:

The dubbing method of the re-recordable optical disc of the present invention having the above-mentioned structure has high practical value. This method is to simultaneously record the main A/V data stream (MAIN A/V Stream) and the dubbing audio data stream (Dubbing audio stream) on a recording medium such as a high-density re-recordable disc (BD-RW), and at the same time, Automatically and continuously generate each real playlist (Real playlist) and virtual playlist (virtual playlist) for playing and controlling the main A/V data stream and dubbing audio data stream, so that users can easily record management and re-recordable discs The main A/V data stream corresponds to the dubbed audio data stream.

In order to further illustrate the above-mentioned purpose, structural features and effects of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings.

(4) Description of drawings

Figure 1 is a partial structural diagram of an optical disc device such as a video disc recorder (VDR: Video Disc Recorder) required for signal recording and playback of recording media such as BD-RW;

Fig. 2 is a connection state diagram between the actual play list (Real play list) and the virtual play list (virtual play list) of the re-recordable disc (BD-RW);

Fig. 3 is the operation flowchart of the dubbing method of the recording method of the re-recordable optical disc of the present invention;

FIG. 4 is an operation flowchart of the dubbing method of the recording method for a re-recordable optical disc according to another embodiment of the present invention.

Explanation of the symbols of the main parts in the drawings

1. Optical disc 2. Optical pickup (pick up)

3. VDR system 4. Encoder

(5) specific implementation

Next, an embodiment of the dubbing method for a re-recordable optical disc of the present invention will be described in detail with reference to the accompanying drawings.

First, the dubbing method for a re-recordable optical disc of the present invention is applicable to the optical disc device having the above-mentioned configuration as described above with reference to FIG. In the VDR system 3 of the above-mentioned optical disk device, the main A/V data stream and the corresponding dubbing audio data stream are added to record and store on the above-mentioned BD-RW1 in a unit of clip (Clip) with time continuity. While recording, automatically and continuously generate each actual playlist (Real playlist) and virtual playlist (virtual playlist) for managing the recording and playback of this A/V data stream and dubbing audio data stream, and then to be suitable for the above-mentioned BD- Record management in the form of RW1's file structure (File structure) and format (format). This will be described in detail below.

FIG. 3 is a flow chart of the operation of the dubbing method for the re-recordable optical disc of the present invention.

The operation flow of the dubbing method for the re-recordable optical disc of the present invention:

The process begins.

S10, the above-mentioned VDR system 3 in FIG. 1 starts to record the externally received video and audio data on the above-mentioned BD-RW disc 1 in the form of main A/V data stream according to the user's request.

S11, confirm whether it is required to record the dubbing audio data stream synchronously? If it is not required to record the dubbing audio data stream synchronously, at this time, enter the S18 process and perform a general recording operation.

S12, if it is determined in the above S11 process that the user requests to record other externally input audio data such as the user's voice as the recording audio data stream corresponding to the above-mentioned main A/V data stream, and the current recording mode has When it is set to record the main A/V data stream and the dubbing audio data stream at the same time, the above-mentioned VDR system 3 will record the above-mentioned video and audio data into the main A/V data stream, and record the other externally input audio The data is recorded as a dubbed audio data stream.

For example, the above-mentioned VDR system 3 will repeatedly perform the following series of operations: while recording the above-mentioned video and audio data as the main A/V data stream, temporarily store other externally-input audio data into the first buffer (not shown). icon). Then, when the audio data temporarily stored in the above-mentioned first buffer reaches a certain recording size, the video and audio data are temporarily stored in another internal second buffer ( not shown), at the same time, the audio data of a certain recording size temporarily stored in the first internal buffer is recorded as a dubbing audio data stream.

S13, then, determine whether the above-mentioned VDR system 3 has finished recording the above-mentioned main A/V data stream during the process of repeatedly performing the above-mentioned simultaneous recording operation? If not finished, go back to process S12.

S14, if it is determined in the process S13 that the recording of the above-mentioned main A/V data stream has ended, as shown in FIG. The main A/V data stream of 1 cutting sheet (Clip 1 main A/V data stream among Fig. 2), simultaneously, generate and include the first actual broadcast that is recorded and be used to read the playback control information of this main A/V data stream directory (Real playlist1), and then recorded in a form suitable for the file structure and format of the above-mentioned BD-RW1.

S15, confirm whether the recording of dubbing audio data stream is finished? If not finished, continue to confirm within this process.

S16, if it is determined in the process S15 that the recording of the above-mentioned dubbing audio data stream ends, this dubbing audio data stream is stored as the dubbing audio data stream (Clip 2 dubbing audio data stream in Fig. 2 ) of the 2nd cutting piece, and simultaneously, Automatically generate and record the second actual playlist (Real playlist 2) containing the play control information for reading and playing the dubbing audio data stream.

S17, the above-mentioned VDR system 3, when generating and recording the first actual playback list and the second actual playback list that respectively control the playback of the above-mentioned main A/V data stream and dubbing audio data stream, automatically and continuously generate and record information related to the above-mentioned first actual playback list. The first virtual play list (virtual playlist1) of the main path (PLAY ITEM) connected with the actual play list and the sub-path (Sub play item) connected with the above-mentioned second actual play list, recorded to the above-mentioned BD-RW disc 1, the process ends.

FIG. 4 is an operation flowchart of the dubbing method of the recording method for a re-recordable optical disc according to another embodiment of the present invention, and the specific flow is as follows.

The process begins.

S30, as mentioned above, the VDR system 3 in FIG. 2 converts the externally received video and audio data into the main A/V data stream according to the user's request, and starts recording on the above-mentioned BD-RW disc 1 .

S31, confirm whether it is required to record dubbing audio data stream synchronously? If it is not required to record the dubbing audio data stream synchronously, at this time, enter the S38 process and perform a general recording operation.

S32, if it is determined in the above-mentioned S31 process that the user requests to simultaneously record other externally input audio data such as the user's voice as the recording audio data stream corresponding to the above-mentioned main A/V data stream, and the current recording mode has When configured to simultaneously record the main A/V data stream and the dubbing audio data stream, the above-mentioned VDR system 3, as previously shown with reference to FIG. At the same time, another externally input audio data is recorded as a dubbing audio data stream.

S33, then, determine whether to end the recording of the dubbing audio data stream?

S34, in the process of the above-mentioned simultaneous recording operation repeatedly performed by the above-mentioned VDR system 3, when it is determined in the above-mentioned process S33 that the recording of the dubbed audio data stream is completed, this dubbed audio data stream is differentiated and stored as the dubbed audio of the second clip Data stream (Clip 2 dubbing audio data stream among Fig. 2), simultaneously, automatically generate the second actual play directory (Realplaylist 2) that contains the playback control information for reading and playing this dubbing audio data stream, and record.

S35, then, confirm whether to end the recording of the above-mentioned main A/V data stream? If it is not over, continue to judge in this process.

S36, if it is determined in the above-mentioned S35 process, when the recording of the above-mentioned main A/V data stream is finished, as shown in Figure 2, the main A/V data stream is stored as a piece unit, for example, it has time continuity The main A/V data stream of the 1st piece of the 1st piece, at the same time, generate the first real play list (Real playlist 1) that contains and record the playback control information for reading this main A/V data stream, then record as suitable for the above-mentioned The format of the file structure and format of BD-RW Disc 1.

S37, the above-mentioned VDR system 3, when generating and recording the first actual playlist and the second actual playlist for respectively controlling the playback of the above-mentioned main A/V data stream and dubbing audio data stream, automatically and continuously generate and record information related to the above-mentioned first playlist. The first virtual play list (virtual playlist1) of the main path (PLAY ITEM) connected with the actual play list and the sub-path (Sub play item) connected with the above-mentioned second actual play list, recorded to the above-mentioned BD-RW disc 1 on.

S39. In addition, in the above S33 process, it is determined that the recording of the dubbing audio data stream is not terminated, and it is determined whether to end the recording of the above-mentioned main A/V data stream? If not finished, return to process S32.

S40, if it is determined in the above-mentioned S39 process that the recording of the above-mentioned main A/V data stream is terminated, the above-mentioned VDR system 3 will compel A second actual play list corresponding to the dubbing audio data stream recorded from this starting point is automatically generated.

S41, and at this moment, as previously mentioned, automatically and continuously generate the play item (PLAY ITEM) that contains the play item (PLAY ITEM) of the main path that the above-mentioned first actual play list is connected and the sub-path that the above-mentioned second actual play list is connected. The first virtual playlist (Virtual playlist 1) of the project (Sub play item) is recorded on the above-mentioned BD-RW disc 1.

Although the present invention has been described with reference to the current specific embodiments, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, and it should be understood that various changes and modifications can be made in the present invention. It does not deviate from the present invention in a broad sense, so it is not intended as a limitation to the present invention. As long as it is within the spirit of the present invention, changes and modifications to the above-mentioned embodiments will fall within the scope of the claims of the present invention.

Claims (6)

1. A dubbing method for a re-recordable optical disc, characterized in that it comprises the following three steps of operation: The first step is to simultaneously record the main A/V data stream and the dubbing audio data stream on the re-recordable optical disc; Second step, generate and record the first actual playlist for playing the described main A/V data stream of control and generate the second actual playlist for reading and playing the dubbing audio data stream; The third step is to generate a virtual playlist including play items connected to the first actual playlist and sub-playitems connected to the second actual playlist. 2. The dubbing method for re-recordable optical disc as claimed in claim 1, characterized in that: said first step is to perform interleaving and repeatedly during recording said main A/V data stream, and said dubbing audio Temporarily storing the data stream to the internal buffer, and temporarily storing the main A/V data stream to the internal buffer during the recording of the dubbing audio data stream. 3. The dubbing method for a re-recordable optical disc as claimed in claim 1, characterized in that: in the second step, when the recording of the main A/V data stream ends, automatically generate the recording playback control described After that, when the recording of the dubbing audio data stream ends, the second actual playback list of the dubbing audio data stream for playback control is automatically generated and recorded in turn. 4. The dubbing method for a re-recordable optical disc as claimed in claim 1, characterized in that: in the second step, when the recording of the dubbing audio data stream ends, the dubbing audio data for playback control is generated The second actual playlist of the stream is recorded, and thereafter, when the recording of the main A/V data stream ends, the first actual playlist of the main A/V data stream for recording and playback control is automatically generated and recorded in turn. 5. The dubbing method for a re-recordable optical disc as claimed in claim 1, characterized in that: in the second step, when the recording of the main A/V data stream ends, the dubbing also ends The audio data stream is recorded, and at the same time, the first and second actual playlists of the main A/V data stream and dubbing audio data stream described in the recording and playback control are respectively generated. 6. The dubbing method for a re-recordable optical disc as claimed in claim 1, characterized in that: in the third step, when generating and recording the first and second actual playlists, the records are automatically generated sequentially including the record There is a virtual playlist for playing and controlling the play items of the main path of the main A/V data stream and playing the sub play items of the sub-path of the dubbing audio data stream.

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