CN101938641B - Mobile multimedia broadcast television playing system and implementation method thereof - Google Patents
Mobile multimedia broadcast television playing system and implementation method thereof Download PDFInfo
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Abstract
The invention provides a mobile multimedia broadcasting playing system comprising a master control module, a mobile multimedia broadcast television module, a data analysis module, an audio and video decoding module and an audio and video playing module, wherein the master control module sends control information to relevant modules; the mobile multimedia broadcast television module acquires audio data streams and video data streams according to the control information; the data analysis module is used for analyzing the audio data streams and stopping analyzing the audio data streams according to an audio and video analysis interrupt message; the audio and video decoding module is used for decoding the audio and video data streams and stopping decoding the audio and video data streams according to an audio and video decoding interrupt message and sending the audio and video decoding interrupt message to the data analysis module; and the audio and video playing module is used for playing the audio and video data streams and stopping audio and video data playing when receiving a playing interrupt message and sending the audio and video decoding interrupt message to the audio and video decoding module. The invention has clear hierarchical structure and can well realize the playing of a mobile multimedia broadcast television mobile phone.
Description
[technical field]
The present invention relates to China Mobile multimedia broadcasting (mobile multimedia broadcast television, China MobileMultimedia Broadcasting) field, particularly relate to a kind of system and implementation method of mobile multimedia broadcast television mobile phone player.
[background technology]
Along with the development of information technology, more and more ripe audio frequency and video play-back technology is applied to growing field, like the network teleconference, video monitoring etc.And portable mobile device has also had more demand, whether can receive easily, anywhere or anytime that the TV programme of wanting to see have become present new markets.In order to adapt to development of times, first cover of present domestic independent research is towards system's mobile multimedia broadcast television of multiple portable terminals such as mobile phone, PDA, MP3, MP4, digital camera, notebook computer.
Said mobile multimedia broadcast television mainly provides radio and television services towards terminals such as the small screen portable hand-held terminals such as mobile phone, PDA and in-car TVs.Under the big force urges of SARFT(The State Administration of Radio and Television), mobile multimedia broadcast television has become industry standard.It is not difficult to visualize, the mobile TV based on mobile multimedia broadcast television can become one of indispensable function of following mobile phone.
Fig. 1 is that mobile multimedia broadcast television mobile phone play device hardware connects block diagram; See also shown in Figure 1ly, wherein said mobile multimedia broadcast television mobile phone play device hardware comprises reception antenna 110, CMMB signal receiving chip 120, audio-video frequency playing system 130, supervisory keyboard 140, earphone 150, display screen 160, CMMB signal 170 and control line 180.Wherein, After the control of supervisory keyboard 140 starts; Said CMMB signal receiving chip 120 receives mobile multimedia broadcast television signal through said reception antenna 110; Said audio-video frequency playing system 130 obtains CMMB signal 170 through control line 180 from said CMMB signal receiving chip 120, and on said earphone 150 and said display screen 160, plays.
Current mobile multimedia broadcast television mobile phone play system 130 still is in the secret stage of research and development, realizes that the mobile multimedia broadcast television mobile phone player of oneself becomes a very necessary and urgent thing.
Therefore being necessary to propose a kind of new technical scheme solves the problems referred to above.
[summary of the invention]
The purpose of this part is to summarize some aspects of embodiments of the invention and briefly introduces some preferred embodiments.In this part and the application's specification digest and denomination of invention, may do a little simplification or omit avoiding the making purpose of this part, specification digest and denomination of invention fuzzy, and this simplification or omit and can not be used to limit scope of the present invention.
One of the object of the invention is to provide a kind of mobile multimedia broadcast television Play System, and it realizes the function of mobile multimedia broadcast television mobile TV playing through independent research.
Two of the object of the invention is to provide a kind of implementation method of mobile multimedia broadcast television broadcast, and it realizes the function of mobile multimedia broadcast television mobile TV playing through independent research.
According to an aspect of the present invention, the present invention provides a kind of mobile multimedia broadcast television Play System, and it comprises:
Main control module, be used for to correlation module transmit control message, audio frequency is resolved message, video is resolved message, audio decoder message, video decode message or play interrupt message;
The mobile multimedia broadcast television module is obtained the mobile multimedia broadcast television inter-area traffic interarea that comprises audio data stream and video data stream according to said control messages;
Data resolution module; Audio data stream and video data stream according to audio frequency parsing message or video parsing message are obtained said mobile multimedia broadcast television module are resolved, and resolve interrupt message according to audio frequency parsing interrupt message and video and stop the parsing to audio data stream and video data stream;
The audio decoder module is decoded according to the audio data stream that audio decoder message is resolved said data resolution module, stops the decoding and the transmission audio frequency of audio data stream are resolved interrupt message to said data resolution module according to the audio decoder interrupt message;
The video decode module is decoded according to the video data stream that video decode message is resolved said data resolution module, stops the decoding and the transmission video of video data stream are resolved interrupt message to said data resolution module according to the video decode interrupt message;
Audio playing module; Audio data stream according to said control messages is accomplished said audio decoder module decoding is play; The broadcast of next section continuant audio data takes place to interrupt and enter into after accomplishing one section continuous voice playing; Send audio decoder message simultaneously and give said next section audio data of audio decoder module decoding, when receiving said broadcast interrupt message, then interrupt voice playing and send the audio decoder interrupt message and give said audio decoder module; With
The video playback module; Video data stream according to said control messages is accomplished said video decode module decoding is play; The broadcast of next frame video data takes place to interrupt and enter into after the broadcast of accomplishing a frame; Send video decode message simultaneously and give said video decode module decoding next frame video data, then break of video is play and is sent the video decode interrupt message and gives said video decode module when receiving said broadcast interrupt message.
Further, said mobile multimedia broadcast television module is obtained from mobile multimedia broadcast television signal termly and is read said mobile multimedia broadcast television inter-area traffic interarea the chip.
Further; Said data resolution module; Comprise the first audio frequency buffer area, the first video cache district, data parsing functional module, the second audio frequency buffer area and the second video cache district; Said mobile multimedia broadcast television module deposits audio data stream in the mobile multimedia broadcast television inter-area traffic interarea that obtains and video data stream respectively in the first audio frequency buffer area and the first video cache district of said data resolution module; Said data parsing functional module is resolved the data flow in said first audio frequency buffer area and the said first video cache district after resolving message or video parsing message according to said audio frequency according to certain specification; And the audio data stream after will resolving and video data stream be put into respectively in said second audio frequency buffer area and the said second video cache district, can interrupt the parsing work to audio, video data when said data resolution module obtains when audio frequency is resolved interrupt message.
Further; Said audio decoder module; Comprise audio decoder functional module and the 3rd audio frequency buffer area; Said audio decoder functional module is obtained out the voice data in the described second audio frequency buffer area according to certain specification according to audio decoder message and is decoded; And the good audio data stream of will decoding is put in said the 3rd audio frequency buffer area, when the audio decoder module is obtained the audio decoder interrupt message, can interrupt the decoding work to voice data, and sends audio frequency and resolve interrupt message and give said data resolution module.
Further; Said video decode module; Comprise video decode functional module and the 3rd video cache district; Said video capability decoder module obtains out the voice data in the described second video cache district according to certain specification according to video decode message and decodes; And the good video data stream of will decoding is put in said the 3rd video cache district, when said video decode module is obtained the video decode interrupt message, can interrupt the decoding work to video data, and concurrent photopic vision is resolved interrupt message frequently and given said data resolution module.
Further; Said audio playing module is according to obtaining audio data stream and notify the external audio player to play in the 3rd audio frequency buffer area of voice playing message from said audio decoder module, when obtaining the broadcast interrupt message that main control module sends, can produce the audio decoder interrupt message and give the audio decoder module.
Further; Said video playback module is according to obtaining video data stream and notify extraneous video player to play in the 3rd video cache district of video playback message from said video decode module, when obtaining the broadcast interrupt message that main control module sends, can produce the video decode interrupt message and give the video decode module.
Further; Said audio playing module or video playback module receive when playing interrupt message; Then send the audio decoder interrupt message and give said video decode module to interrupt the decoding to audio, video data for said audio decoder module or video decode interrupt message, said audio decoder module or video decode module send audio frequency parsing interrupt message subsequently and video parsing interrupt message gives said data resolution module to interrupt the parsing to audio, video data.
Further, said audio playing module self provides a voice playing timer, and under the control of voice playing timer, plays, and behind one section continuous voice data of every broadcast the system time of update playing; Said video playback module self provides a video playback timer; It is used to calculate every frame and plays the required time; Said video playback module is play each frame under said system time, proceed to play and after timer calculates the time that every frame plays, forward next frame to.
According to a further aspect in the invention, the implementation method that the present invention provides a kind of mobile multimedia broadcast television to play, it comprises:
When beginning to play, obtain mobile multimedia broadcast television signal; Audio, video data to said mobile multimedia broadcast television signal is resolved; Audio, video data after the said parsing is decoded to obtain audio and video data streams; Said audio and video data streams is play,
It is characterized in that, behind one section continuous voice data of voice playing, can produce and interrupt and forward the continuous voice data of next section to playing, after video playback one frame receives, produce and interrupt and forward the next frame video data to playing; When take place interrupting stopping, then interrupting the broadcast of audio frequency and video, interrupt subsequently to the decoding of audio, video data and to the parsing of audio, video data.
Compared with prior art; The self-defined a kind of mobile multimedia broadcast television playing system of the present invention; It accomplishes the broadcast of mobile multimedia broadcast television with the parsing of the mobile multimedia broadcast television signal that obtains through audio frequency and video and the decoding of audio frequency and video, and behind one section continuous voice data of voice playing, is transferred to next section and plays and send audio decoder message and make the continuation decoding audio data; Send afterwards and resolve the feasible parsing voice data that continues of message; Behind video playback one frame, be transferred to next frame and play and send the feasible decode video data that continues of video decode message, send the feasible continuation parsing of parsing message video data afterwards, and the process of interruption broadcast when producing interruption, audio/video decoding and audio frequency and video parsing; And system level of the present invention is clear; Simple in structure, the software and hardware resources that takies is fewer, is fit to small type mobile devices uses such as mobile phone.
[description of drawings]
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.Wherein:
Fig. 1 is that mobile multimedia broadcast television mobile phone play device hardware connects block diagram;
Fig. 2 is the sketch map of mobile multimedia broadcast television Play System among the present invention;
Fig. 3 is mobile multimedia broadcast television data flow path sketch map among the present invention;
Fig. 4 is the sketch map of buffer area data flow among the present invention; With
Fig. 5 plays the flow chart after starting for mobile multimedia broadcast television among the present invention.
[embodiment]
Detailed description of the present invention is mainly come the running of direct or indirect simulation technical scheme of the present invention through program, step, logical block, process or other symbolistic descriptions.Be the thorough the present invention that understands, in ensuing description, stated a lot of specific detail.And when not having these specific detail, the present invention then possibly still can realize.Affiliated those of skill in the art use these descriptions here and state that the others skilled in the art in affiliated field effectively introduce their work essence.In other words, be the object of the invention of avoiding confusion, because the understanding easily of method of knowing and program, so they are not described in detail.
Alleged here " embodiment " or " embodiment " are meant special characteristic, structure or the characteristic that can be contained at least one implementation of the present invention.Different in this manual local " in one embodiment " that occur not are all to refer to same embodiment, neither be independent or optionally mutually exclusive with other embodiment embodiment.In addition, represent that the sequence of modules and revocable in method, flow chart or the functional block diagram of one or more embodiment refers to any particular order, also be not construed as limiting the invention.
The present invention provides a kind of mobile multimedia broadcast television Play System, and it can be used among Fig. 1 in the audio-video frequency playing system 130, and its concrete structure can be referring to Fig. 2.
Fig. 2 is the sketch map of mobile multimedia broadcast television Play System 200 among the present invention; Said mobile multimedia broadcast television mobile TV playing system 200 comprises main control module 210, mobile multimedia broadcast television module 220, data resolution module 230, audio decoder module 240, video decode module 250, audio playing module 260 and video playback module 270; Wherein under the control of main control module 210, through to the parsing of audio, video data and the broadcast of the laggard capable audio frequency and video of decoding.
Said main control module 210 is used for various buffer area Resources allocation (wherein various buffer areas can referring to Fig. 3); Various modules are carried out initial work, and to each module transmit control message, audio frequency is resolved message, video is resolved message, audio decoder message, video decode message or play interrupt message etc.General, said main control module 210 starts or stops this Play System through beginning or stopping information order, when obtaining initiation command, each module in the system is carried out initialization, and various required buffer areas are distributed adequate resources; Respective modules provides decretum inhibitorium, the work that stops to respond when ceasing and desisting order obtaining.In one example; During the beginning play multimedia files; Said audio decoder module 240 is carried out initial work with video decode module 250; And send the audio frequency and video resolving information and be used for the audio, video data of initial decoding with parsing to said data resolution module 230, audio decoder module 240 and video decode module 250 obtain audio decoder message and video decode message then the audio, video data after the parsing decode to be used for broadcast, so just accomplished initialized work.
Said mobile multimedia broadcast television module 220 is obtained the mobile multimedia broadcast television inter-area traffic interarea according to said control messages, and said mobile multimedia broadcast television inter-area traffic interarea comprises audio data stream and video data stream.General; For the continuity that guarantees to play; See also Fig. 1; When carrying out the mobile multimedia broadcast television mobile TV playing, said mobile multimedia broadcast television module 220 can regularly be obtained from said mobile multimedia broadcast television information and obtain the mobile multimedia broadcast television information that includes audio data stream and video data stream the chip.
Audio data stream and video data stream that said data resolution module 230 obtains said mobile multimedia broadcast television module 220 according to said audio frequency parsing message or video parsing message are resolved, and stop the parsing to audio data stream and video data stream according to audio frequency parsing interrupt message and video parsing interrupt message.
The audio data stream that said audio decoder module 240 is resolved said data resolution module 230 according to said audio decoder message is decoded so that said audio playing module 260 can be discerned broadcast according to certain rule, and stops the decoding to audio data stream according to the audio decoder interrupt message.
The video data stream that said video decode module 250 is resolved said data resolution module 230 according to said video decode message is decoded according to certain rule so that said video playback module 270 can be discerned broadcast, and stops the decoding to video data stream according to the video decode interrupt message.
The audio data stream that said audio playing module 260 is accomplished said audio decoder module 240 decodings according to said control messages is play; The broadcast of next section continuant audio data takes place to interrupt and enter into after accomplishing one section continuous voice playing; Send audio decoder message simultaneously and give said audio decoder module, when receiving said control messages, then interrupt voice playing and send the audio decoder interrupt message to said audio/video decoding module for the broadcast interrupt message.
The video data stream that said video playback module 270 is accomplished said video decode module 250 decodings according to said control messages is play; The broadcast of next frame video data takes place to interrupt and enter into after the broadcast of accomplishing a frame; Send video decode message simultaneously and give said video decode module, then break of video is play and is sent the video decode interrupt message and gives said audio/video decoding module when receiving said control messages for the broadcast interrupt message.
By on can find out; Under the control of said main control module 210; At first audio, video data is resolved, subsequently the audio, video data after resolving is decoded, at last decoded audio, video data is play; And in the process of playing constantly feedback message with completion the audio, video data of not resolving and decode is resolved and decodes for audio/video decoding module and data resolution module, thereby realized continuous broadcast.
Fig. 3 is mobile multimedia broadcast television data flow path sketch map among the present invention; See also shown in Figure 3ly, wherein main control module 310, mobile multimedia broadcast television module 320, data resolution module 330, audio decoder module 340, video decode module 350, audio playing module 360 and video playback module 370 are all corresponding with the main control module 210 shown in Fig. 2, mobile multimedia broadcast television module 220, data resolution module 230, audio decoder module 240, video decode module 250, audio playing module 260 and video playback module 270.
In the process of mobile TV playing; Said data parsing functional module 3303 is resolved audio data stream and video data stream in the said first audio frequency buffer area 3301 and the first video cache district 3302 termly according to certain specification, and the audio data stream after will resolving and video data stream are put into respectively in the said second audio frequency buffer area 3304 and the said second video cache district 3305.
It should be noted that the data in said first audio frequency buffer area 3301 and the said first video cache district 3302 can also can be common audio, video data for the audio, video data of mobile multimedia broadcast television module 320 submissions.Because in same mobile device, for portability and the complexity that reduces structure, only a data parsing module can be set usually, it generally can also resolve common audio, video data except resolving the mobile multimedia broadcast television data.
Said audio decoder module 340 comprises audio decoder functional module 3401 and the 3rd audio frequency buffer area 3402; Wherein in the process of system plays; Said audio decoder functional module 3401 will be obtained the voice data after the parsing according to audio decoder message and decode according to certain specification from the said second audio frequency buffer area 3304, and decoded audio data stream is put in said the 3rd audio frequency buffer area 3402.
Said video decode module 350 comprises video decode functional module 3501 and the 3rd video cache district 3502; Wherein in the process of system plays; Said video decode functional module 3501 will be obtained the video data after the parsing according to video decode message and decode according to certain specification from the said second video cache district 3305, and decoded video data stream is put in said the 3rd video cache district 3502.
Said audio playing module 360 is according to obtaining audio data stream and notify external audio player (like earphone) to play in the 3rd audio frequency buffer area 3402 of said voice playing message from said audio decoder module 340; Said video playback module 370 is according to obtaining video data stream and notify extraneous video player (like LCD display) to play in the 3rd video cache district 3502 of said video playback message from said video decode module 350.
Should be noted that; The process of actual play may run into some problems; At this moment, in order to guarantee the playing fluency of audio frequency and video, to remain data and can not have data to overflow in said the 3rd audio frequency buffer area 3402 and said the 3rd video cache district 3502.For instance; Fig. 4 is the sketch map of buffer area data flow among the present invention; Describe for ease among the figure; Chosen the partial buffering district in the said first audio frequency buffer area, said second audio buffer and said the 3rd audio buffer simply, and the buffer area of choosing in will scheming has carried out address mark at present.Wherein begin to carry out in the initialized process in broadcast; Respectively the said first audio frequency buffer area, the said second audio frequency buffer area and said the 3rd audio frequency buffer area are filled out relative data; As in the said first audio frequency buffer area, filling up voice data; Voice data after in the said second audio frequency buffer area, filling out parsing on three continuous addresses is filled out on three continuous addresses in said the 3rd audio frequency buffer area and is filled up decoded voice data.Certainly, in practical application, deposit audio, video data, so that playing efficiency is the highest and be unlikely to buffer area for empty or overflow according to the audio, video data of actual play.
Subsequently in the process of voice playing; Suppose that every section continuous voice data accounts for the space of an address in buffer area, said audio playing module 360 according to self audio frequency time from said the 3rd audio frequency buffer area 3402 3001 in obtain voice data in the corresponding address section.After said audio playing module 360 is play a continuous voice data end; Can interrupt and forward to next address promptly obtains voice data and plays from the address 3002 of said the 3rd audio frequency buffer area; And notification audio decoding function module 3401 is carried out the decoding of next section continuous data at this moment, and the update system time.Obtaining data in 3401 address 2001 corresponding address sections from the said second audio frequency buffer area of said subsequently audio decoder functional module decodes; Obtaining voice data subsequently in the 1001 corresponding address sections of notification data analytical capabilities module from the said first audio frequency buffer area resolves and puts in the said second audio frequency buffer area, the 2004 corresponding address sections; Like this; Make data in said second audio frequency buffer area and said the 3rd audio frequency buffer area; Constantly upgrade, thereby guaranteed the broadcast of audio frequency.
Stop or suspending when main control module 310 sends to let when playing interrupt message play; Then 360 broadcasts that can interrupt voice data of audio playing module; At this moment; 360 of said audio playing module can be sent an audio decoder interrupt message and given said audio decoder functional module 3401; 3401 interruptions of said audio decoder functional module are decoded data from the said second audio frequency buffer area 3304, and sends audio frequency and resolve interrupt message to said data parsing functional module 3303, and 3303 interruptions of said data parsing functional module are resolved voice data from the said first audio frequency buffer area 3301.Thereby realized the interruption of audio frequency.
Playing process for the playing process of video and above-mentioned audio frequency is similar; It can be summarized as follows: contain a video playback timer in the said video playback module 370; It calculates the time of the broadcast of each frame; At first said video playback module 370 is obtained the data of a frame and is play from said the 3rd video cache district 3502; After the time that said video playback timer calculates finishes, then from said the 3rd video cache district 3502, obtaining the data of next frame plays; And notify said video decode functional module 3501 to decode; Said video decode functional module 3501 is obtained and then from the said second video cache district 3305, is obtained data after the decode messages and decode and send message and give said data parsing functional module 3303, and said data parsing functional module 3303 receives then to be obtained video data after the message and resolve from the said first video cache district 3302.Thereby realized the playing process of video.
The interrupt procedure of its video playback also interrupt procedure with above-mentioned voice playing is similar; Be that video playback module 370 is sent the video decode interrupt message when obtaining interrupt message and given said video decode functional module 3501; It is data parsing functional module 3303 that said video decode functional module 3501 is interrupted the decoding of video and transmission video parsing interrupt message; 3303 of said data parsing functional modules stop from the said first video cache district 3302, resolving video data, thereby have realized the interrupt procedure of video.
For the broadcast of audio frequency and video, the priority of voice playing generally is higher than the priority of video playback, includes a voice playing timer in the said audio playing module 360; It is used for the system time of update playing; Be specially: after one section continuous broadcast of every completion, then can upgrade said system time in said audio playing module 360, if the time period that this section of said voice playing timer timing play continuously is 30ms; Suppose that the original system time is 08:56:10; Time after then upgrading was 08:56:40 10 milliseconds the time in promptly 8 minutes and 56 seconds, promptly 8 minutes and 56 seconds 40 milliseconds.Along with the carrying out of playing, one section continuous voice data of every broadcast then upgrades the primary system time.
And video playback meanwhile; Then can be along with system time comes the controls playing process; Be specially: include a video playback timer in the said video playback module 370 equally; In the process of video playback; Said video playback timer is used to calculate the time period that every frame is play, and said video playback module 370 is play corresponding video data according to said system time, when the time period that the video playback timer is calculated finishes then to send message and gives the said video decode functional module 3501 next frame data that begin to decode.Certainly in the process of actual play; Also can run into some problems; As, in the process of video playback, possibly in the time that the video playback timer calculates, not finish; Then can lose remaining data of that frame that does not finish playing this moment, and forward the next frame that system time shows to and play.
Above-mentioned is the process of normal play; In practical application; The user stops or suspending playing process usually for some reason; At this moment; 310 of said main control modules can send the control information that stops with video playback module 370 to said audio playing module 360 and promptly play interrupt message; When said audio playing module 360 receives the broadcast interrupt message, then send an audio decoder interrupt message, make said audio decoder functional module 3401 stop from the said second audio frequency buffer area 3304, to continue decoding audio data stream, make said data parsing functional module 3303 stop from the said first audio frequency buffer area 3301, to continue to resolve voice data to an audio frequency parsing of data parsing functional module 3303 transmissions interrupt message simultaneously and flow in the said second audio frequency buffer area 3304 to said audio decoder functional module 3401.Equally;, said video playback module 370 then sends a video decode interrupt message when receiving the broadcast interrupt message to said video decode module 3501; At this moment; 3501 of said video decode functional modules stop from the said second video cache district 3305, to continue decode video data stream, make said data parsing functional module 3303 stop from the said first video cache district 3302, to continue to resolve video data to a video parsing of data parsing functional module 3303 transmissions interrupt message simultaneously and flow in the said second video cache district 3305.So just, stop updating data in said each buffer area, prevented that data from overflowing, and realized the function that stops to play.
Fig. 5 plays the flow chart after starting for mobile multimedia broadcast television among the present invention, sees also shown in Figure 5ly, and it is following that its mobile multimedia broadcast television is play the flow process that starts:
Step 510: begin to start and play, and each module of initialization and each buffer area;
Step 520: the mobile multimedia broadcast television signal receiving chip obtains mobile multimedia broadcast television signal (comprising audio data stream and video data stream);
Step 530: the audio, video data that obtains is resolved and put in the buffer area after the corresponding said initialization;
Step 540: the audio, video data after resolving is decoded and put in the other buffer area after the corresponding said initialization;
Step 550: decoded audio, video data is play.
In the process of playing; The process of a feedback of meeting; Promptly play one section continuous voice data or one-frame video data and send audio/video decoding message; This moment, the audio/video decoding module can be decoded for broadcast to audio frequency and video, and sent audio frequency and video and resolve message and give the audio frequency and video parsing module resolving new audio, video data, and obtained new mobile multimedia broadcast television data.Thereby accomplished playing process.
In playing the process of suspending or stopping; With above-mentioned similar; Promptly interrupt the broadcast of audio frequency and video and send the audio/video decoding interrupt message to stop decoding to audio, video data; And and then send audio frequency and video and resolve interrupt message stopping parsing audio, video data, thereby making to play suspends or stops.
It should be noted that system of the present invention and implementation method not only can be applied in the mobile phone, in other mobile devices that also can be applied to carry, as long as it can obtain mobile multimedia broadcast television signal.
In sum, the present invention has realized the broadcast of mobile multimedia broadcast television signal through self-defining system, and system level is clear, and simple in structure, the software and hardware resources that takies is fewer, is fit to mobile phone or carry-on small type mobile devices is used.
Above-mentioned explanation has fully disclosed embodiment of the present invention.It is pointed out that any change that technical staff's specific embodiments of the invention of being familiar with this field is done does not all break away from the scope of claims of the present invention.Correspondingly, the scope of claim of the present invention also is not limited only to previous embodiment.
Claims (8)
1. mobile multimedia broadcast television Play System is characterized in that it comprises:
Main control module, be used for to correlation module transmit control message, audio frequency is resolved message, video is resolved message, audio decoder message, video decode message or play interrupt message;
The mobile multimedia broadcast television module is obtained the mobile multimedia broadcast television inter-area traffic interarea that comprises audio data stream and video data stream according to said control messages;
Data resolution module; Audio data stream or video data stream according to audio frequency parsing message or video parsing message are obtained said mobile multimedia broadcast television module are resolved, and resolve interrupt message according to audio frequency parsing interrupt message and video and stop the parsing to audio data stream and video data stream;
The audio decoder module is decoded according to the audio data stream that audio decoder message is resolved said data resolution module, stops the decoding and the transmission audio frequency of audio data stream are resolved interrupt message to said data resolution module according to the audio decoder interrupt message;
The video decode module is decoded according to the video data stream that video decode message is resolved said data resolution module, stops the decoding and the transmission video of video data stream are resolved interrupt message to said data resolution module according to the video decode interrupt message;
Audio playing module; Audio data stream according to said control messages is accomplished said audio decoder module decoding is play; The broadcast of next section continuant audio data takes place to interrupt and enter into after accomplishing one section continuous voice playing; Send audio decoder message simultaneously and give said next section audio data of audio decoder module decoding, when receiving said broadcast interrupt message, then interrupt voice playing and send the audio decoder interrupt message and give said audio decoder module; With
The video playback module; Video data stream according to said control messages is accomplished said video decode module decoding is play; The broadcast of next frame video data takes place to interrupt and enter into after the broadcast of accomplishing a frame; Send video decode message simultaneously and give said video decode module decoding next frame video data, then break of video is play and is sent the video decode interrupt message and gives said video decode module when receiving said broadcast interrupt message
Said data resolution module; Comprise the first audio frequency buffer area, the first video cache district, data parsing functional module, the second audio frequency buffer area and the second video cache district; Said mobile multimedia broadcast television module deposits audio data stream in the mobile multimedia broadcast television inter-area traffic interarea that obtains and video data stream respectively in the first audio frequency buffer area and the first video cache district of said data resolution module; Said data parsing functional module is resolved the data flow in said first audio frequency buffer area or the said first video cache district after resolving message or video parsing message according to said audio frequency according to certain specification; And the audio data stream after will resolving and video data stream be put into respectively in said second audio frequency buffer area and the said second video cache district, can interrupt the parsing work to audio, video data when said data resolution module obtains when audio frequency is resolved interrupt message.
2. mobile multimedia broadcast television Play System according to claim 1 is characterized in that: said mobile multimedia broadcast television module is obtained from mobile multimedia broadcast television signal termly and is read said mobile multimedia broadcast television inter-area traffic interarea the chip.
3. mobile multimedia broadcast television Play System according to claim 1; It is characterized in that: said audio decoder module; Comprise audio decoder functional module and the 3rd audio frequency buffer area; Said audio decoder functional module is obtained out the voice data in the described second audio frequency buffer area according to certain specification according to audio decoder message and is decoded; And the good audio data stream of will decoding is put in said the 3rd audio frequency buffer area, when the audio decoder module is obtained the audio decoder interrupt message, can interrupt the decoding work to voice data, and sends audio frequency and resolve interrupt message and give said data resolution module.
4. mobile multimedia broadcast television Play System according to claim 1; It is characterized in that: said video decode module; Comprise video decode functional module and the 3rd video cache district; Said video capability decoder module obtains out the voice data in the described second video cache district according to certain specification according to video decode message and decodes; And the good video data stream of will decoding is put in said the 3rd video cache district, when said video decode module is obtained the video decode interrupt message, can interrupt the decoding work to video data, and sends video and resolve interrupt message and give said data resolution module.
5. according to claims 1 described mobile multimedia broadcast television Play System; It is characterized in that: said audio playing module is according to obtaining audio data stream and notify the external audio player to play in the 3rd audio frequency buffer area of voice playing message from said audio decoder module, when obtaining the broadcast interrupt message that main control module sends, can produce the audio decoder interrupt message and give the audio decoder module.
6. according to claims 1 described mobile multimedia broadcast television Play System; It is characterized in that: said video playback module is according to obtaining video data stream and notify extraneous video player to play in the 3rd video cache district of video playback message from said video decode module, when obtaining the broadcast interrupt message that main control module sends, can produce the video decode interrupt message and give the video decode module.
7. according to claims 1 described mobile multimedia broadcast television Play System; It is characterized in that: said audio playing module or video playback module receive when playing interrupt message; Then send the audio decoder interrupt message and give said video decode module to interrupt the decoding to audio, video data for said audio decoder module or video decode interrupt message, said audio decoder module or video decode module send audio frequency parsing interrupt message subsequently and video parsing interrupt message gives said data resolution module to interrupt the parsing to audio, video data.
8. mobile multimedia broadcast television Play System according to claim 1; It is characterized in that: said audio playing module self provides a voice playing timer; And under the control of voice playing timer, play, and behind one section continuous voice data of every broadcast the system time of update playing; Said video playback module self provides a video playback timer; It is used to calculate every frame and plays the required time; Said video playback module is play each frame under said system time, proceed to play and after timer calculates the time that every frame plays, forward next frame to.
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| CN103179454A (en) * | 2011-12-26 | 2013-06-26 | 深圳万兴信息科技股份有限公司 | Method and device for processing video data |
| CN103533408A (en) * | 2013-09-29 | 2014-01-22 | 青岛盛嘉信息科技有限公司 | Bus video player |
| CN104717534A (en) * | 2013-12-17 | 2015-06-17 | 青岛龙泰天翔通信科技有限公司 | Interactive television media application aggregation cloud service play method |
| CN105430570B (en) * | 2015-11-27 | 2018-03-23 | 北京小鸟听听科技有限公司 | Player method and playing device |
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Address after: 214028 10-storey Building 530 Qingjia Road, Taihu International Science Park, Wuxi New District, Jiangsu Province Patentee after: WUXI ZHONGGAN MICROELECTRONIC CO., LTD. Address before: 214028 10-storey Building 530 Qingjia Road, Taihu International Science Park, Wuxi New District, Jiangsu Province Patentee before: Wuxi Vimicro Co., Ltd. |