CN102737687A

CN102737687A - Solving scheme for image-text flash relevance broadcast

Info

Publication number: CN102737687A
Application number: CN2011101214324A
Authority: CN
Inventors: 吕精华; 郭红艳; 廖健; 陈丽爱
Original assignee: China Digital Video Beijing Ltd
Current assignee: China Digital Video Beijing Ltd
Priority date: 2011-05-11
Filing date: 2011-05-11
Publication date: 2012-10-17
Anticipated expiration: 2031-05-11

Abstract

The embodiment of the invention discloses a solving scheme for image-text flash relevance broadcast, aiming at establishing a common decoding object for flash material of the same source. From an enter-point of a first flash in a timer shaft, a system begins from a first frame of a present flash of a decoded object, reads each frame of the present flash sequentially, begins broadcasting the present flash till the out-point of the last flash material. The number of the materials in the middle is unrelated; the problem that flash materials of the same source cannot be broadcast smoothly in a traditional image-text system is solved; and meanwhile the flash materials can be added unlimitedly in accordance with the demands upon a broadcasting effect; and various stunts can be added, so that the problem that various stunt effects need to be added at will under the condition that the continuity of the broadcast content of an image-text document is not influenced is solved.

Description

The related solution of broadcasting of a kind of picture and text animation

Technical field

The present invention relates to fields such as captions, the related solution of broadcasting of particularly a kind of picture and text animation.

Background technology

In the teletext field, the picture and text animation is meant set of diagrams as the sequence physical file that compression is preserved through interframe, and it can realize the dynamic effect of picture and text, in teletext, has morely and uses.The attribute that the picture and text animation is general comprises size and length (being frame number).The broadcast of animation is exactly the process of image sequence decoding and broadcast, and general picture and text system can be realized the functions such as broadcast, head and the tail cutting broadcast and circulation broadcast of animation.According to animation itself with stunt type difference be divided into into, stop, go out animation, every type animation corresponding different broadcast effects, as go into and be retained on the screen after on behalf of animation, animation broadcast to finish always, go out animation and represent that the animation broadcast finishes.

Placing the cartoon material in three identical sources on the time shaft as shown in Figure 1; Be designated as A, B, C animation respectively; Each animation has the different subtitle stunt; They have realized that respectively the stunt of fading in, ripples of animation stop the stunt that of stunt and linear slide, thus A, B, C belong to respectively into, stop, go out animation.Ordering and the position of material on timeline determines that by the program demand suppose that the discrepancy point of each material on timeline is not close to, according to stunt type separately, its actual result of broadcast is:

Animation A goes into a little at its time corresponding line and broadcasts with the mode of fading in, and timeline is whenever walked a frame, and picture and text system broadcasts the corresponding image of a frame, and up to going out a little of it, at this moment animation A rests on transfixion on the screen; Timeline continues to go ahead, and has waited until going into a little of animation B, and animation A lost efficacy, and animation B starts anew to broadcast successively each content frame with the trick mode of ripples, and up to going out a little of it, at this moment animation B rests on transfixion on the screen; Timeline continues to go ahead, and has waited until going into a little of animation C, and animation B lost efficacy, and animation C starts anew to broadcast successively each two field picture content with the mode of straight line stunt, up to going out a little of it.

There is following problem in this traditional picture and text animation playing method: the one, when timeline is in the blank space between the material; Because there do not have effective animation to go into out to be a little corresponding with it; Animation remains static; Arrive the effective coverage of next cartoon material up to timeline, so have still frame, poor visual effect between two animations; The 2nd, going into a little of each animation always begins to broadcast from the first frame of the corresponding image sequence of animation file, and when broadcasting the cartoon material in identical source on the whole timeline, visual effect can not be continuous, and this can not satisfy user's demand.

Summary of the invention

The invention provides the related solution of broadcasting of a kind of picture and text animation, for the cartoon material in identical source is set up common decoder object, first animation goes into a little from time shaft; System's first frame of current animation from decoder object begins; Read each frame of current animation successively, begin to play current animation, to the last a cartoon material goes out a little; Irrelevant with the material number of centre; Solved and broadcasted incoherent problem between the cartoon material in identical source in traditional picture and text system, simultaneously can be according to the needs that broadcast effect increase cartoon material with limitting, and give different stunts; Also solving animation file is not easily influencing under the successional prerequisite of broadcast content, arbitrarily increases the problem of different special effects.

Concrete grammar is following:

S101: for the cartoon material in identical source is set up common decoder object;

S102: image sequence in the animation file of decoding successively, the animation of these shared decoder objects promptly is referred to as related animation;

S103: the going into a little of first animation from time shaft, system's first frame of current animation from decoder object begins, and reads each frame of current animation successively, begins to play current animation, and to the last a cartoon material goes out a little;

S104: in the effective coverage of related animation, increase cartoon material according to the needs that broadcast effect, and give different stunts.

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.

Fig. 1 is background technology time shaft of the present invention and cartoon material graph of a relation.

Fig. 2 is a process flow diagram of the present invention.

Embodiment

To combine accompanying drawing below, the technical scheme in the embodiment of the invention will be carried out clear, intactly description.

As shown in Figure 2, embodiment is following:

One, cartoon material A, B, C are related animation, promptly have identical physical file source, and system sets up common decoder object for them; Decoder object and an animation file are associated; Its image sequence in animation file of being responsible for decoding successively, when cartoon material uses the picture material of last frame, the decoder object decoded picture content that starts anew again; Can guarantee like this can guarantee the continuity of content no matter the broadcast length of cartoon material on timeline is long and short.

Two, the lifetime because of related animation is a beginning of going into of first animation; Therefore continue up to going out a little of last animation, when timeline was gone to going into of cartoon material A, the picture numbers that decoder object need read was 0; And the like; Arrive going out a little of cartoon material C up to timeline, at this moment the present frame sequence number of decoder object is n, and this value depends on the length of animation lifetime and the length of animation file itself.Because the content decoding of related animation is always continuous, so n value itself is unimportant.Broadcast discontinuous and the problem quiet frame of blank space with regard to having solved like this.

Three, according to the characteristics of related animation, we just can realize that very easily the picture file not influencing under the successional prerequisite of broadcast content, arbitrarily increases different special effects.As shown in Figure 1, the effect of its broadcast is:

From a beginning of going into of A material, animation broadcasts with the stunt of fading in, and when reaching the going out of A material, the stunt of fading in finishes, along with the back mobile picture content of timeline is brought in constant renewal in; When timeline arrived going into of B material, animation was carried out the ripples stunt, and up to going out a little of B material, the ripples stunt is finished; When timeline arrived going into of material C, animated content began to carry out the stunt that straight line goes out, up to going out a little of C.Animated content keeps bringing in constant renewal in the whole process, and in the different time section, has accomplished different special effects, has greatly enriched the application of title cartoon.

The present invention includes but be not limited to the embodiment of above description, any those skilled in the art need not pay that creative work just can think of variation all should fall into protection scope of the present invention.

Claims

1. the related solution of broadcasting of picture and text animation comprises the captions manufacturing system, it is characterized in that, may further comprise the steps:

2. the related solution of broadcasting of picture and text animation as claimed in claim 1; It is characterized in that; The effective coverage of said related animation on time shaft is a decision that of going into a little of first animation and last animation; Irrelevant with the material number of centre, and the content that related animation broadcasts is always continuous.