CN102957966B - A kind of method of player and the frame of video embedded time for player - Google Patents
A kind of method of player and the frame of video embedded time for player Download PDFInfo
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- CN102957966B CN102957966B CN201110239017.9A CN201110239017A CN102957966B CN 102957966 B CN102957966 B CN 102957966B CN 201110239017 A CN201110239017 A CN 201110239017A CN 102957966 B CN102957966 B CN 102957966B
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000000605 extraction Methods 0.000 claims abstract description 15
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000009877 rendering Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses a kind of method of player and the frame of video embedded time for player, the method carries out following steps after decoded video: A. from the timestamp of current video frame extraction time data; B. extracted time data is rounded to second; C. by the time data after rounding stored in the first buffer; D. according to the form of the format conversion video current time data of frame of video, and by the time data of exported corresponding picture format stored in the second buffer; E. the time data of the picture format in the second buffer is mixed with current video frame, to export the frame of video of embedded time.Implement technical scheme of the present invention, the frame of video of embedded time can be exported, like this, even if also video current time can be demonstrated when played in full screen.In addition, corresponding time point, when carrying out shot operation to the video of certain time point or time period, has also just saved by user, searches intercepted picture after convenient according to time point.
Description
Technical field
The present invention relates to video processing technique, particularly relate to method and the player of a kind of frame of video embedded time.
Background technology
When video playback, user mostly wishes display video current time, total reproduction time, residue reproduction time and current time in system on broadcast window, when particularly user needs appointment to watch the video content of specific time period or time point in video sometimes, the reproduction time be presented on broadcast window is helpful to video location.But, existing player is when displaying video, shown reproduction time realizes with the form of wicket superposition, and non-immediate writes on the time in frame of video, like this, user, when carrying out shot operation, also can not preserve the time point of intercepted picture in whole video, search intercepted picture after being therefore not easy to according to time point.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect of searching intercepted picture after the above-mentioned user of being not easy to of prior art according to time point, a kind of method of embedded time of the frame of video for player is provided, after being convenient to user, searches intercepted picture according to time point.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method constructing embedded time of the frame of video for player, after decoded video, carries out following steps:
A. from the timestamp of current video frame extraction time data;
B. extracted time data is rounded to second;
C. using the time data after rounding as video current time data, and stored in the first buffer;
D. the form of video current time data according to the format conversion of frame of video, and by the time data of exported corresponding picture format stored in the second buffer;
E. the time data of the picture format in the second buffer is mixed with current video frame, to export the frame of video of embedded time.
In the method for frame of video of the present invention embedded time, before steps A, the method for described frame of video embedded time also comprises:
First buffer, the second buffer are reset;
Between step B and step C, the method for described frame of video embedded time also comprises:
F. judge the video current time data after rounding whether with the data consistent in the first buffer, if so, then carry out step e; If not, then step C is carried out.
In the method for frame of video of the present invention embedded time, before decoding, the method for this frame of video embedded time also comprises:
Receive total reproduction time data;
Described step D comprises:
D1. received total reproduction time data and described video current time data are subtracted each other to obtain remaining reproduction time;
D2. described video current time data, described total reproduction time data and described residue reproduction time data assemblies are become a text;
D3. according to the form of frame of video combined text-converted become corresponding picture format time data and stored in the second buffer.
In the method for frame of video of the present invention embedded time, described step D2 is:
By described video current time data, described total reproduction time data, described residue reproduction time data and become a text from the current time in system data assemblies that player obtains.
The present invention also constructs a kind of player, comprises video processing module, and described video processing module comprises:
Extraction unit, for from the timestamp of current video frame extraction time data;
Round unit, for extracted time data is rounded to second;
First buffer unit, for using the time data after rounding as video current time data, and stored in the first buffer;
Converting unit, for the form of video current time data according to the format conversion of frame of video, and by the time data of exported corresponding picture format stored in the second buffer;
Mixed cell, for being mixed with current video frame by the time data of the picture format in the second buffer, to export the frame of video of embedded time.
In player of the present invention, the primary data of the first buffer, the second buffer is zero, and described video processing module also comprises:
Judging unit, for judge the video current time data after rounding whether with the data consistent in the first buffer.
In player of the present invention, described player also comprises: for receive audio, video data communication interface, for read audio, video data read module, for isolating voice data, video data and the total separation module of reproduction time data, the Video decoding module for decode video data from read audio, video data;
Described converting unit comprises:
Computation subunit, for subtracting each other to obtain remaining reproduction time by received total reproduction time data and described video current time data;
Combination subelement, for becoming a text by described video current time data, described total reproduction time data and described residue reproduction time data assemblies;
Conversion subelement, becomes the time data of corresponding picture format stored in the second buffer combined text-converted for the form according to frame of video.
In player of the present invention, described player also comprises the time-obtaining module for obtaining the current time in system;
Described combination subelement, also for described video current time data, described total reproduction time data, described residue reproduction time and current time in system are combined into a text.
In player of the present invention, described player also comprises:
Video Rendering module, for playing up process to the video after process;
Video display module, for playing the video after playing up process.
In player of the present invention, described player also comprises:
Audio decoder module, for decoding to described voice data;
Audio frequency rendering module, for playing up process to decoded voice data;
Audio playing module, for playing the voice data after playing up process.
Implement technical scheme of the present invention, because the time data will extracted from the timestamp of frame of video is as video current time data, and its form of format conversion again according to frame of video after being rounded, finally the video current time data converting corresponding picture format to is mixed with current video frame, thus export the frame of video of embedded time.Like this, even if also video current time can be demonstrated when played in full screen.In addition, corresponding time point, when carrying out shot operation to the video of certain time point or time period, has also just saved by user, searches intercepted picture after therefore facilitating according to time point.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the flow chart of the present invention for the embodiment of the method one of the frame of video embedded time of player;
Fig. 2 is the flow chart of the present invention for the embodiment of the method two of the frame of video embedded time of player;
Fig. 3 is the flow chart of step S400 preferred embodiment;
Fig. 4 is the building-block of logic of the video processing module embodiment one of player of the present invention;
Fig. 5 is the building-block of logic of the video processing module embodiment two of player of the present invention;
Fig. 6 is the building-block of logic of player embodiment one of the present invention.
Embodiment
As shown in Figure 1, be used in the flow chart of the embodiment of the method one of the frame of video embedded time of player in the present invention, the method for this frame of video embedded time, after decoding to frame of video, carries out following steps:
S100. from the timestamp of current video frame extraction time data, it should be noted that extracted time data is text formatting;
S200. extracted time data is rounded to second;
S300. using the time data after rounding as video current time data, and stored in the first buffer;
S400. the form of video current time data according to the format conversion of frame of video, and by the time data of exported corresponding picture format stored in the second buffer, the form of this frame of video can be YV12, YUY2, RGB24 etc.In this step, because the video current time data before changing is text formatting, current time data is consistent with video frame formats frequently for transformed video, therefore, usually first the video current time data of text formatting is converted to the picture of RGB32 form, then convert the picture of RGB32 form to corresponding picture format according to the form of frame of video;
S500. the time data of the picture format in the second buffer is mixed with current video frame, to export the frame of video of embedded time.
Implement this technical scheme, because the time data will extracted from the timestamp of frame of video is as video current time data, and its form of format conversion again according to frame of video after being rounded, finally the video current time data converting corresponding picture format to is mixed with current video frame, thus export the frame of video of embedded time.Like this, even if also video current time can be demonstrated when played in full screen.In addition, corresponding time point, when carrying out shot operation to the video of certain time point or time period, has also just saved by user, searches intercepted picture after therefore facilitating according to time point.
In the embodiment one shown in Fig. 1, owing to all having carried out format conversion to the time data extracted in the timestamp from each frame video, so just consume the ample resources of player.For this technical problem, the application improves on the basis of the embodiment one shown in Fig. 1, as shown in Figure 2, what first illustrate is, user in use, usually shown time data is accurate to second, that is, the shown video current time of the multiple frame of video in a second is the same.In the flow chart of the embodiment of the method two of the embedded time of the frame of video for player shown in Fig. 2, the method for this frame of video embedded time comprises the following steps:
S000. the first buffer, the second buffer are reset
S100. from the timestamp of current video frame extraction time data, it should be noted that extracted time data is text formatting;
S200. extracted time data is rounded to second;
S600. judge the video current time data after rounding whether with the data consistent in the first buffer, if so, then carry out step S500; If not, then step S300 is carried out;
S300. using the time data after rounding as video current time data, and stored in the first buffer;
S400. the form of video current time data according to the format conversion of frame of video, and by the time data of exported corresponding picture format stored in the second buffer, the form of this frame of video can be YV12, YUY2, RGB24 etc.In this step, because the video current time data before changing is text formatting, current time data is consistent with video frame formats frequently for transformed video, therefore, usually first the video current time data of text formatting is converted to the picture of RGB32 form, then convert the picture of RGB32 form to corresponding picture format according to the form of frame of video;
S500. the time data of the picture format in the second buffer is mixed with current video frame, to export the frame of video of embedded time, then continue next frame of video of process.
Preferably, as shown in Figure 3, in above-mentioned any embodiment, step S400 can comprise further:
S401. received total reproduction time data and described video current time data are subtracted each other to obtain remaining reproduction time, it should be noted that receiving total reproduction time is before decoded video frames;
S402. described video current time data, described total reproduction time data and described residue reproduction time data assemblies are become a text;
S403. according to the form of frame of video combined text-converted become corresponding picture format time data and stored in the second buffer.
Implement this technical scheme, when playing during video, shown time data is except video current time, and also show total reproduction time and residue reproduction time, the user that is more convenient for like this checks the position of the frame of video of certain time point or time period in whole video.
Preferably, the step S402 shown in Fig. 3 also can be specially: by described video current time data, described total reproduction time data, described residue reproduction time data and become a text from the current time in system data assemblies that player obtains.Like this, when playing during video, shown time data, except video current time, total reproduction time and residue reproduction time, also shows the current time in system, is so also convenient to user and checks the current time in system.
Fig. 4 is the building-block of logic of the video processing module embodiment one of player of the present invention, and this video processing module comprises extraction unit 101 connected successively, rounds unit 102, first buffer unit 103, converting unit 104 and mixed cell 105.Wherein, extraction unit 101 for from the timestamp of current video frame extraction time data; Round unit 102 for extracted time data is rounded to second; First buffer unit 103 for using the time data after rounding as video current time data, and stored in the first buffer; Converting unit 104 for the form of video current time data according to the format conversion of frame of video, and by the time data of exported corresponding picture format stored in the second buffer; Mixed cell 105 for the time data of the picture format in the second buffer is mixed with current video frame, to export the frame of video of embedded time.
Fig. 5 is the building-block of logic of the video processing module embodiment two of player of the present invention, and this video processing module comprises extraction unit 101, rounds unit 102, judging unit 106, first buffer unit 103, converting unit 104 and mixed cell 105.Wherein, extraction unit 101 for from the timestamp of current video frame extraction time data; Round unit 102 for extracted time data is rounded to second; Judging unit 106 for judge the video current time data after rounding whether with the data consistent in the first buffer; First buffer unit 103 for when judging unit 106 judges inconsistent, using the time data after rounding as video current time data, and stored in the first buffer; Converting unit 104 for the form of video current time data according to the format conversion of frame of video, and by the time data of exported corresponding picture format stored in the second buffer; Mixed cell 105 for the time data of the picture format in the second buffer is mixed with current video frame, to export the frame of video of embedded time.In this embodiment, it should be noted that the primary data of the first buffer and the second buffer is zero.
Fig. 6 is the building-block of logic of player embodiment one of the present invention, and this player comprises: communication interface 200, read module 300, separation module 400, Video decoding module 500, video processing module 100, Video Rendering module 600, video display module 700, audio decoder module 800, audio frequency rendering module 9000, audio playing module 1000 and time-obtaining module 1100.Wherein, communication interface 200 is for receiving audio, video data; Read module 300 is for reading audio, video data; Separation module 400 for isolating voice data, video data and total reproduction time data from read audio, video data; Video decoding module 500 is for decode video data; The logical construction of video processing module 100 with reference to the logical construction of the embodiment shown in figure 4 or Fig. 5, can not repeat them here.Video Rendering module 600 is for playing up process to the video after process; Video display module 700 is for playing the video after playing up process; Audio decoder module 800 is for decoding to described voice data; Audio frequency rendering module 900 is for playing up process to decoded voice data; Audio playing module 1000 is for playing the voice data after playing up process.Time-obtaining module 1100 is for obtaining the current time in system.
In a preferred embodiment, the converting unit 104 in video processing module 100 can specifically comprise: computation subunit, combination subelement and conversion subelement.Wherein, computation subunit is used for received total reproduction time data and described video current time data to subtract each other to obtain remaining reproduction time; Combination subelement is used for described video current time data, described total reproduction time data and described residue reproduction time data assemblies to become a text; Conversion subelement is used for becoming the time data of corresponding picture format stored in the second buffer combined text-converted according to the form of frame of video.
In another preferred embodiment, combination subelement is also for being combined into a text by described video current time data, described total reproduction time data, described residue reproduction time and current time in system.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present invention.
Claims (10)
1. for the method for the frame of video embedded time of player, it is characterized in that, after decoded video, carry out following steps:
A. from the timestamp of current video frame extraction time data;
B. extracted time data is rounded to second;
C. judge that whether the time data after rounding is consistent with the video current time data stored in the first buffer, if so, then carry out step F, if not, then carry out step D;
D. using the time data after rounding as video current time data, and stored in the first buffer;
E. the form of video current time data according to the format conversion of frame of video, and by the time data of exported corresponding picture format stored in the second buffer;
F. the time data of the picture format in the second buffer is mixed with current video frame, to export the frame of video of embedded time;
Wherein, described step e comprises further:
The video current time data of text formatting is converted to the picture of RGB32 form, then convert the picture of RGB32 form to corresponding picture format according to the form of frame of video.
2. the method for frame of video according to claim 1 embedded time, is characterized in that, before steps A, the method for described frame of video embedded time also comprises:
First buffer, the second buffer are reset.
3. the method for frame of video according to claim 1 embedded time, is characterized in that, before decoding, the method for this frame of video embedded time also comprises:
Receive total reproduction time data;
Described step e comprises:
E1. received total reproduction time data and described video current time data are subtracted each other to obtain remaining reproduction time;
E2. described video current time data, described total reproduction time data and described residue reproduction time data assemblies are become a text;
E3. according to the form of frame of video combined text-converted become corresponding picture format time data and stored in the second buffer.
4. the method for frame of video according to claim 3 embedded time, is characterized in that, described step e 2 is:
By described video current time data, described total reproduction time data, described residue reproduction time data and become a text from the current time in system data assemblies that player obtains.
5. a player, comprises video processing module, it is characterized in that, described video processing module comprises:
Extraction unit, for from the timestamp of current video frame extraction time data;
Round unit, for extracted time data is rounded to second;
Judging unit, for judging that whether the time data after rounding is consistent with the video current time data stored in the first buffer;
First buffer unit, for when judging unit judges inconsistent, using the time data after rounding as video current time data, and stored in the first buffer;
Converting unit, for the form of the first buffer unit according to the format conversion of frame of video stored in the video current time data in the first buffer, and by the time data of exported corresponding picture format stored in the second buffer;
Mixed cell, for being mixed with current video frame by the time data of the picture format in the second buffer, to export the frame of video of embedded time;
Wherein, the video current time data of text formatting is converted to the picture of RGB32 form by described converting unit further, then converts the picture of RGB32 form to corresponding picture format according to the form of frame of video.
6. player according to claim 5, is characterized in that, the primary data of the first buffer, the second buffer is zero.
7. the player according to claim 5 or 6, it is characterized in that, described player also comprises: for receive audio, video data communication interface, for read audio, video data read module, for isolating voice data, video data and the total separation module of reproduction time data, the Video decoding module for decode video data from read audio, video data;
Described converting unit comprises:
Computation subunit, for subtracting each other to obtain remaining reproduction time by received total reproduction time data and described video current time data;
Combination subelement, for becoming a text by described video current time data, described total reproduction time data and described residue reproduction time data assemblies;
Conversion subelement, becomes the time data of corresponding picture format stored in the second buffer combined text-converted for the form according to frame of video.
8. player according to claim 7, is characterized in that, described player also comprises the time-obtaining module for obtaining the current time in system;
Described combination subelement, also for described video current time data, described total reproduction time data, described residue reproduction time and current time in system are combined into a text.
9. player according to claim 5, is characterized in that, described player also comprises:
Video Rendering module, for playing up process to the video after process;
Video display module, for playing the video after playing up process.
10. player according to claim 5, is characterized in that, described player also comprises:
Audio decoder module, for decoding to described voice data;
Audio frequency rendering module, for playing up process to decoded voice data;
Audio playing module, for playing the voice data after playing up process.
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| CN103546766B (en) * | 2013-11-14 | 2017-02-08 | 腾讯科技(成都)有限公司 | Video processing method, related equipment and communication system |
| CN105791952B (en) * | 2016-03-02 | 2019-03-12 | 传线网络科技（上海）有限公司 | The screenshot method and device and electronic equipment of streaming media video data |
| CN106375793B (en) * | 2016-08-29 | 2019-12-13 | 东方网力科技股份有限公司 | video structured information superposition method, user terminal and superposition system |
| CN108010058A (en) * | 2017-11-29 | 2018-05-08 | 广东技术师范学院 | A kind of method and system that vision tracking is carried out to destination object in video flowing |
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