CN1956504A - Subtitling method of video-audio playing system - Google Patents
Subtitling method of video-audio playing system Download PDFInfo
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- CN1956504A CN1956504A CN 200510116603 CN200510116603A CN1956504A CN 1956504 A CN1956504 A CN 1956504A CN 200510116603 CN200510116603 CN 200510116603 CN 200510116603 A CN200510116603 A CN 200510116603A CN 1956504 A CN1956504 A CN 1956504A
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Abstract
This invention relates to a sentence separation method for CD play system including: detection of sentence labels: when playing, a caption decoder can be consulted by a caption unit to detect the starting and ending time of a sentence to symbol the sentences, management of sentence labels: providing a ring buffer storing the sentence labels in the buffer and maintaining a target to access the buffer, playing of the labels: when playing the CD system, one can get the labels of being played sentences from said ring buffer to play according to instructions of a control device.
Description
Technical field
The invention relates to a kind of subtitling method of video-audio playing system, especially refer to that a kind of user can accurately carry out the repeat playing of sentence by remote controller or input interface, broadcast, playbacks fast or jump directly to a certain sentence before fast and play, to make things convenient for the subtitling method of the video-audio playing system that the user learns a language.
Background technology
Please refer to Fig. 1, it illustrates the block schematic diagram of known video-audio playing system.As shown in the figure, general video-audio playing system normally is made up of institutes such as a resolver 10, a subtitle decoder 20, an image-decoding device 30, an image synthesizer 40 and audio decoders 50.Wherein, this resolver 10 be receive the audiovisual materials bit stream (bitstream) that digital image and sound optical disk sheet (DVD) exported and resolved after respectively captions data bit stream is sent to subtitle decoder 20, the image data bit stream is sent to image-decoding device 30 and the audio data bit stream is sent to audio decoder 50 etc.; Then, be shown on the screen after image synthesizer 40 captions data that this subtitle decoder 20 is decoded and image-decoding device 30 image data of being decoded is synthesized; Audio decoder 50 is then back synchronously by audio output device with the audio data and the image-decoding 30 of decoding, and for example loudspeaker output is so that the user can appreciate the audiovisual materials in the digital image and sound optical disk sheet simultaneously.
Please refer to Fig. 2, it illustrates the schematic diagram of a known captions unit.Subtitle decoder is decoded with the information that a captions unit provides.One captions unit includes:
1. the numbering of captions unit (among the figure with * number expression);
2. the zero-time of captions unit and concluding time (among the figure with * * number expression); And
3. the content of captions unit (among the figure with * * * number expression) etc.
As shown in the figure, it shows that the number of this captions unit is 2, the zero-time and the concluding time of this space curtain unit are respectively 00:00:23.000 to 00:00:26.500, that is the length of this captions unit is 3.5 seconds, and the content of this captions unit is " TOday is beautiful " etc., wherein, this captions unit may be made up of one or more sentence.
Appreciate the content of digital image and sound optical disk sheet in the first time as the user, that need see usually afterwards knows that just which sentence or fragment will repeat to appreciate or study, as mentioned above, if the above-mentioned sentence of first appearance on the screen, Today is beautifl, and the user is when wanting to learn, it can use the function of repetition A-B (repeat A-B), that is press the button that repeats the button of A-B on the remote controller or on input interface, select to repeat A-B, so that the interval content of repeat playing A point and B point; Only when the user presses the button of repetition A-B, this sentence may be played to half in addition terminal, so need be turned back to the starting point of this sentence earlier, choose the A point again, therefore, repeat the function of A-B, for the user who wants to learn a language, have its defective to exist by the digital image and sound optical disk sheet.
Supervise in this, the subtitling method that needs a kind of video-audio playing system, the user can accurately carry out the repeat playing of sentence by the button on remote controller or the input interface, broadcast, playback fast or jump directly to the subtitling method of the video-audio playing system that a certain sentence plays before fast.
Summary of the invention
A purpose of the present invention provides a kind of subtitling method of video-audio playing system, and its subtitle decoder can be by the sentence label of a captions unit information with the detecting sentence, and it is zero-time and the concluding time of representing sentence.
Another object of the present invention provides a kind of subtitling method of video-audio playing system, and when video-audio playing system was play, its subtitle decoder was stored in the sentence label of sentence in this circular buffer.
Another object of the present invention provides a kind of subtitling method of video-audio playing system, and subtitle decoder will be broadcast and the present sentence label of playing sentence is stored in respectively in this circular buffer; Cooperate resolver simultaneously, the sentence label of a certain sentence also is stored in this circular buffer respectively before and after can scanning in advance.
Another object of the present invention provides a kind of subtitling method of video-audio playing system, when this video-audio playing system is play, can obtain desire to this circular buffer and play the sentence label of sentence and carry out repeat playing, broadcast, playback fast or jump directly to a certain sentence before fast and play.
In order to achieve the above object, the subtitling method of video-audio playing system of the present invention, it comprises the following steps: to provide a circular buffer; When this video-audio playing system was play, to detect the sentence label of a sentence, it was zero-time and the concluding time of representing sentence to a subtitle decoder of this video-audio playing system by a captions unit information; The sentence label of this sentence is stored in this circular buffer, safeguards that simultaneously an index comes access buffer; And this video-audio playing system is when playing according to the instruction of a control device, can obtain desire to this circular buffer and play the sentence label of sentence and play.
In order to achieve the above object, the subtitling method of video-audio playing system of the present invention, it comprises the following steps: to provide a circular buffer; When this video-audio playing system is play, one subtitle decoder of this video-audio playing system cooperates resolver when playing present sentence, a captions unit information of a certain sentence is to detect its sentence label before and after the scanning in advance simultaneously, and it is zero-time and the concluding time of representing sentence; The sentence label is stored in this circular buffer, safeguards that simultaneously an index comes access buffer; And this video-audio playing system be can play according to the instruction of a control device time, can obtain desire to this circular buffer and play the sentence label of sentence and play.
Description of drawings
For making the auditor can further understand structure of the present invention, feature and purpose thereof, below in conjunction with the detailed description of accompanying drawing and preferred embodiment as after, wherein:
Fig. 1 is a schematic diagram, and it illustrates the block schematic diagram of known video-audio playing system.
Fig. 2 is a schematic diagram, and it illustrates the schematic diagram of a known captions unit.
Fig. 3 is a schematic diagram, and it illustrates the block schematic diagram of the video-audio playing system of a preferred embodiment of the present invention.
Fig. 4 is a schematic diagram, and it illustrates the schematic diagram of the employed circular buffer 60 of video-audio playing system.
Fig. 5 is a schematic diagram, and it illustrates the schematic flow sheet of subtitling method of the video-audio playing system of a preferred embodiment of the present invention.
Fig. 6 is shown in the schematic diagram, the schematic diagram that it illustrates subtitling method of the present invention when carrying out the present sentence of repeat playing.
Fig. 7 is shown in the schematic diagram, and it illustrates subtitling method of the present invention and carries out schematic diagram when playbacking a sentence.
Fig. 8 is shown in the schematic diagram, and it illustrates the schematic diagram when sowing a sentence before subtitling method of the present invention is carried out.
Fig. 9 is shown in the schematic diagram, the schematic diagram that it illustrates subtitling method of the present invention when carrying out jzJ an ancient type of spoon to a certain sentence and playing.
Embodiment
Please in the lump with reference to Fig. 3 and Fig. 4, it illustrates the block schematic diagram of video-audio playing system of a preferred embodiment of the present invention and the schematic diagram of the employed circular buffer 60 of this video-audio playing system respectively.As shown in Figure 3, it differs from video-audio playing system of the present invention above-mentioned video-audio playing system and is in it and has a circular buffer 60, this circular buffer 60 is to be coupled to this subtitle decoder 20, in order to store the zero-time and the concluding time of this subtitle decoder 20 sentence that decodes.Wherein, the size of this circular buffer 60 can optionally change, and it can be made of general ring buffer memory, but perhaps defines a block as a circular buffer in general memory with the program mode (PM) of data structure.
As shown in Figure 4, this circular buffer 60 further has the pointer 611 of the present sentence label of at least one sensing, pointer can be derived to the pointer of a certain sentence of pointer 612 and front and back of the pointer 610 of pointing to a last sentence, next sentence, so that this resolver 10 is convenient to obtain the sentence label of desire broadcast sentence thus.And this circular buffer 60 is to be a circular buffer, that is the sentence label that newly advances can replace the oldest sentence label fall.
Please refer to Fig. 5, it illustrates the schematic flow sheet of subtitling method of the video-audio playing system of a preferred embodiment of the present invention.As shown in Figure 5, the subtitling method of video-audio playing system of the present invention its comprise the following steps:
(step 1) sentence label detecting: when this video-audio playing system is play, a subtitle decoder 20 by captions unit information to detect the sentence label of a sentence;
(step 2) sentence tag control a: circular buffer 60 is provided, the sentence label of this sentence is stored in this circular buffer, safeguard that simultaneously an index comes access buffer;
(step 3) sentence label is play: when this video-audio playing system is play, can obtain desire to this circular buffer 60 according to the instruction of a control device and play the sentence label of sentence and play.
Wherein, in this step 1, this captions unit has information as shown in Figure 2, the captions unit information that this subtitle decoder 20 can be exported by this resolver 10 is to decode the sentence label of sentence, wherein this sentence label is zero-time and the concluding time for sentence, for example decodes sentence shown in Figure 2 " Today isbeautifl " its zero-time and concluding time to be respectively 00:00:23.000 and 00:00:26.500.
In this step 2, this circular buffer 60 has structure as shown in Figure 4, have pointer 610,611 and 612, and its buffer sizes can be adjusted optionally.For example, the zero-time (being 00:00:23.000) and concluding time (being 00:00:26.500) of present sentence is stored in respectively in this circular buffer 60, and pointer 611 will point to the position of this present sentence label.
In this step 3, this control device (figure does not show) can be the button on a remote controller or the input interface; And this control device can to provide with the sentence be repeat playing sentence (the Repeat Sentence of unit, RS), the preceding sentence (FOrwardSentence that broadcasts, FS), playback sentence (Backward Sentence, BS) or jump directly to a certain sentence and play that (GoTo Sentence GS) waits instruction for user's operation.
As shown in Figure 6, when the user presses this repeat playing instruction (RS), this Play System will be according to the sentence label of obtaining present sentence in this circular buffer 60 that is directed to of this pointer 611: zero-time (being 00:0023.000) and concluding time (being 00:0026.500), zero-time is made as the A point, concluding time is made as the B point, after carry out Repaet A-B repeat playing, so, the user can be complete and repeats to listen a present sentence apace.
As shown in Figure 7, when pressing this, the user playbacks sentence (BS) when instruction, this Play System will skip to (GoToTime) last starting point A point then according to the zero-time that obtains a last sentence in this circular buffer 60 that is directed to of pointer 610, the beginning normal play.
As shown in Figure 8, when broadcasting sentence (FS) instruction before the user presses this, this Play System will be play present sentence fast, find the next sentence beginning up to this subtitle decoder 20, that is next captions unit, just reply normal play.
As shown in Figure 9, when the user presses this and skips to a certain sentence and play (GS) instruction, this subtitle decoder 20 cooperates resolver 10 to carry out scanning (pre-scan) captions unit in advance, and zero-time and the concluding time that will scan each sentence of gained are stored in this circular buffer 60, this Play System will be according to the zero-time that obtains this sentence in this circular buffer 60 that is directed to of pointer then, skip to (GoToTime) this starting point then, the beginning normal play.
Wherein, in the present embodiment, before to broadcast that sentence (FS) instructs and playback sentence (BS) instruction be being that example is illustrated forward or toward playbacking a sentence, but be not to broadcast the sentence quantity that sentence (FS) instructs and playbacks sentence (BS) instruction before of the present invention in order to limit, as previously mentioned, as long as this circular buffer 60 is enough big, the zero-time and the concluding time of more sentences can be stored in this circular buffer 60 in advance.
So, via enforcement of the present invention, it uses a circular buffer to store the zero-time and the concluding time of a last sentence, present sentence and next sentence respectively, so that the user can by user's interface input can accurately carry out sentence repeat playing, preceding broadcast sentence, playback sentence or jump directly to a certain sentence play, to make things convenient for the user to learn a language, it really can improve the shortcoming of the not hommization operation of known tool DVD Play System.
Disclosed, be preferred embodiment, the change of every part or modification and come from technological thought of the present invention and be have the knack of this technology the people was easy to know by inference, all do not take off patent right category of the present invention.
Claims (14)
1. the subtitling method of a video-audio playing system, wherein, this video-audio playing system has a resolver, a subtitle decoder, an image-decoding device, an image synthesizer and an audio decoder at least, it is characterized in that this method comprises the following steps:
The detecting of sentence label, when this video-audio playing system was play, a subtitle decoder can be by captions unit information to detect a sentence label;
The sentence tag control provides a circular buffer, and the sentence label of this sentence is stored in this circular buffer, safeguards that simultaneously an index comes access buffer; And
The sentence label is play, and when this video-audio playing system is play, can obtain desire to this circular buffer according to the instruction of a control device and play the sentence label of sentence and play.
2. the subtitling method of video-audio playing system as claimed in claim 1 is characterized in that, wherein this sentence label is zero-time and the concluding time for sentence.
3. the subtitling method of video-audio playing system as claimed in claim 1 is characterized in that, wherein this circular buffer further has a pointer, so that this Play System is obtained the sentence label that desire is play sentence.
4. the subtitling method of video-audio playing system as claimed in claim 1 is characterized in that, wherein this subtitle decoder is that sentence label with each sentence is recorded in this circular buffer.
5. the subtitling method of video-audio playing system as claimed in claim 1 is characterized in that, wherein this control device is to be the button on a remote controller or the input interface.
6. the subtitling method of video-audio playing system as claimed in claim 1 is characterized in that, wherein this video-audio playing system can carry out the repeat playing sentence according to the instruction of this control device, precedingly broadcasts sentence, playbacks sentence or jump directly to a certain sentence and plays.
7. the subtitling method of video-audio playing system as claimed in claim 6 is characterized in that, wherein this repeat playing sentence is to carry out repeat playing after obtaining the sentence label of present sentence by this Play System to this circular buffer; This playbacks sentence is to skip to a last sentence starting point, the beginning normal play after obtaining the sentence label of a last sentence in this circular buffer by Play System; Broadcasting sentence before being somebody's turn to do is to play present sentence fast by Play System, finds the next sentence beginning up to subtitle decoder, that is next captions unit, just replys normal play; And this to skip to that a certain sentence plays be to cooperate resolver to carry out scanning in advance by this subtitle decoder, and zero-time and the concluding time that will scan each sentence of gained are stored in this circular buffer, this Play System will be according to the zero-time that obtains this sentence in this circular buffer that is directed to of pointer then, skip to this starting point then, the beginning normal play.
8. the subtitling method of a video-audio playing system, wherein, this video-audio playing system has a resolver, a subtitle decoder, an image-decoding device, an image synthesizer and an audio decoder at least, it is characterized in that this method comprises the following steps:
One circular buffer is provided;
When this video-audio playing system was play, this subtitle decoder of this video-audio playing system cooperated resolver when playing present sentence, scans a captions information in advance to detect the sentence label of present sentence, a last sentence and next sentence simultaneously;
The sentence label of this present sentence, a last sentence and next sentence is stored in respectively in this circular buffer; And
When this video-audio playing system can be play according to the instruction of a control device, can obtain desire to this circular buffer and play the sentence label of sentence and play.
9. the subtitling method of video-audio playing system as claimed in claim 8 is characterized in that, wherein this sentence label is zero-time and the concluding time for sentence.
10. the subtitling method of video-audio playing system as claimed in claim 8 is characterized in that, wherein this circular buffer further has a pointer, so that this Play System is obtained the sentence label that desire is play sentence.
11. the subtitling method of video-audio playing system as claimed in claim 8 is characterized in that, wherein this Play System is simultaneously to carry out the broadcast of present sentence by the staggered mode of switching, and one side scans this captions information in advance.
12. the subtitling method of video-audio playing system as claimed in claim 8 is characterized in that, wherein this control device is for a remote controller or is the button of user's input interface.
13. the subtitling method of video-audio playing system as claimed in claim 8 is characterized in that, wherein this video-audio playing system can carry out the repeat playing sentence, precedingly broadcasts sentence, playbacks sentence or jump directly to a certain sentence and plays.
14. the subtitling method of video-audio playing system as claimed in claim 13 is characterized in that, wherein this repeat playing sentence is to carry out repeat playing after obtaining the sentence label of present sentence by this Play System to this circular buffer; This playbacks sentence is to skip to a last starting point, the beginning normal play after obtaining the sentence label of a last sentence in this circular buffer by Play System; Broadcasting sentence before being somebody's turn to do is to play present sentence fast by Play System, finds the next sentence beginning up to this subtitle decoder, just replys normal play; And this to skip to that a certain sentence plays be to cooperate resolver to carry out by this subtitle decoder to scan the captions unit in advance, and zero-time and the concluding time that will scan the sentence of gained are stored in this circular buffer, this Play System will be obtained the zero-time of this sentence according to the guide of pointer then, skip to this starting point then, the beginning normal play.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510116603 CN1956504A (en) | 2005-10-26 | 2005-10-26 | Subtitling method of video-audio playing system |
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|---|---|---|---|
| CN 200510116603 CN1956504A (en) | 2005-10-26 | 2005-10-26 | Subtitling method of video-audio playing system |
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| CN1956504A true CN1956504A (en) | 2007-05-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104038827A (en) * | 2014-06-06 | 2014-09-10 | 小米科技有限责任公司 | Multimedia playing method and device |
| CN106454491A (en) * | 2016-09-30 | 2017-02-22 | 天脉聚源(北京)传媒科技有限公司 | Method and device for playing voice information in video smartly |
| CN106713986A (en) * | 2015-07-21 | 2017-05-24 | 腾讯科技（深圳）有限公司 | Audio-video jump play method and device |
-
2005
- 2005-10-26 CN CN 200510116603 patent/CN1956504A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104038827A (en) * | 2014-06-06 | 2014-09-10 | 小米科技有限责任公司 | Multimedia playing method and device |
| US9589596B2 (en) | 2014-06-06 | 2017-03-07 | Xiaomi Inc. | Method and device of playing multimedia and medium |
| US9786326B2 (en) | 2014-06-06 | 2017-10-10 | Xiaomi Inc. | Method and device of playing multimedia and medium |
| CN106713986A (en) * | 2015-07-21 | 2017-05-24 | 腾讯科技（深圳）有限公司 | Audio-video jump play method and device |
| CN106713986B (en) * | 2015-07-21 | 2020-09-01 | 腾讯科技（深圳）有限公司 | Audio and video skipping playing method and device |
| CN106454491A (en) * | 2016-09-30 | 2017-02-22 | 天脉聚源(北京)传媒科技有限公司 | Method and device for playing voice information in video smartly |
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