CN102467940A - Fast forward and fast rewind method and device for index-free video file, and play system - Google Patents
Fast forward and fast rewind method and device for index-free video file, and play system Download PDFInfo
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Abstract
The invention is applicable to the technical field of videos and provides a fast forward and fast rewind method and a fast forward and fast rewind device for an index-free video file, and a play system. The method comprises the following steps of: when a file play request is received, initiating an index file handle, traversing key frames with preset quantity, and establishing an index table of the traversed key frames; starting to play the file, initiating a play file handle, playing the file, continuously traversing non-traversed key frames through the index file handle when the play file handle plays the file, and updating the index table according to the traversed key frames; and responding the play request according to the index table. The index file handle and the play file handle are initiated, so that establishment and storage of the index table of the video file and play of the video file can be simultaneously performed. Therefore, when the play request is received, a user can be rapidly responded.
Description
Technical field
The invention belongs to the video technique field, relate in particular to a kind of no index video file fast forwarding and fast rewinding method, device and Play System.
Background technology
Fast development along with network technology and multimedia technology; Jumbo video file also engenders in daily life; Yet; Because the limitation of embedded device system resource, the player on most of embedded devices is not supported the F.F. of indexless video file or the broadcast of rewind down.
At present; Way commonly used is; Player at first searched out all I frames that are present in this video file before playing indexless video file, write down the mapping relations of each I frame offset address and reproduction time stamp in this video file again; Be indexless video file and set up a concordance list, can F.F. or the purpose of rewind down so that reach when playing this video file.
Though this method can make indexless video file F.F. or fast reverse play, because internal memory on the embedded device and the processing speed of CPU all are limited, therefore when setting up concordance list, can take the long time, causes users is experienced not good.
Summary of the invention
The invention provides a kind of no index video file fast forwarding and fast rewinding method; Be intended to solve before playing indexless video file on the embedded device; Need set up the concordance list of whole video file earlier, the wait reproduction time that causes is long, and causes users is experienced not good problem.
The present invention is achieved in that a kind of no index video file fast forwarding and fast rewinding method, and said method comprises step:
When receiving the file playing request, open the index file handle, travel through the key frame of predetermined number, and set up the concordance list of the key frame that has traveled through;
The beginning played file is opened the played file handle, played file, and in played file handle played file, the index file handle continues the not key frame of traversal of traversal, and upgrade concordance list according to the key frame that has traveled through;
According to the request of concordance list response playing.
Another object of the present invention is to provide a kind of no index video file fast forwarding and fast rewinding device, said device comprises:
Set up the concordance list unit, be used for when receiving the file playing request, open the index file handle, travel through the key frame of predetermined number, and set up the concordance list of the key frame that has traveled through;
The played file unit is used to begin played file, opens the played file handle, played file, and in played file handle played file, the index file handle continues the not key frame of traversal of traversal, and upgrade concordance list according to the key frame that has traveled through;
The response playing unit is used for according to the request of concordance list response playing.
Another object of the present invention is to provide the Play System that comprises no index video file fast forwarding and fast rewinding device.
In the embodiment of the invention; The index file handle travels through the key frame of predetermined number before played file handle playing video file, and sets up the concordance list that has traveled through key frame; In the process of played file handle playing video file; The key frame that does not travel through in the index file handle continuation traversal video file owing to opened index file handle and played file handle, makes the concordance list and the playing video file of foundation, store video files to carry out simultaneously.Thereby when receiving playing request, can respond the user fast.Because before playing video file, do not set up the concordance list of all key frames of video file, thereby can effectively reduce the time that the user waits for playing video file, thereby improve user experience again.
Description of drawings
Fig. 1 is the no index video file fast forwarding and fast rewinding method flow that the embodiment of the invention provides;
Fig. 2 is the no index video file fast forwarding and fast rewinding apparatus structure that the embodiment of the invention provides.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention is before playing video file; Open index file handle traversal quantity for the key frame of quantity is set in advance; And the information stores of the key frame after will traveling through is opened played file handle playing video file, when this played file handle playing video file to concordance list; The index file handle continues other key frames in the traversal video file, and is that the key frame that traveled through is set up concordance list.
The invention provides a kind of no index video file fast forwarding and fast rewinding method, device and Play System:
Said method comprises: when receiving the file playing request, open the index file handle, travel through the key frame of predetermined number, and set up the concordance list of the key frame that has traveled through;
The beginning played file is opened the played file handle, played file, and in played file handle played file, the index file handle continues the not key frame of traversal of traversal, and upgrade concordance list according to the key frame that has traveled through;
According to the request of concordance list response playing.
Said device comprises: set up the concordance list unit, be used for when receiving the file playing request, open the index file handle, travel through the key frame of predetermined number, and set up the concordance list of the key frame that has traveled through;
The played file unit is used to begin played file, opens the played file handle, played file, and in played file handle played file, the index file handle continues the not key frame of traversal of traversal, and upgrade concordance list according to the key frame that has traveled through;
The response playing unit is used for according to the request of concordance list response playing.
Said Play System comprises: a kind of Play System that comprises no index video file fast forwarding and fast rewinding device.
In the embodiment of the invention; The index file handle travels through the key frame of predetermined number before played file handle playing video file, and sets up the concordance list that has traveled through key frame; In the process of played file handle playing video file; The key frame that does not travel through in the index file handle continuation traversal video file owing to opened index file handle and played file handle, makes the concordance list and the playing video file of foundation, store video files to carry out simultaneously.Thereby when receiving playing request, can respond the user fast.Because before playing video file, do not set up the concordance list of all key frames of video file, thereby can effectively reduce the time that the user waits for playing video file, thereby improve user experience again.
Embodiment one:
Fig. 1 shows the no index video file fast forwarding and fast rewinding method flow that the embodiment of the invention provides, and details are as follows:
In step S101, when receiving the file playing request, open the index file handle, travel through the key frame of predetermined number, and set up the concordance list of the key frame that has traveled through;
Handle; Refer to use a unique round values; Different objects in the identification application and the different instances in the homogeneous object, for example, window, button, an icon can be called handle; Through this window, button or icon, application program just can be visited the object information that this window, button or icon comprise.In the embodiment of the invention, the index file handle comprises concordance list, and this concordance list is used for offset address and the relation that timestamp shines upon one by one of the key frame of store video files.Wherein, key frame is a video file in the performance motion or when changing, front and back provide the frame of two different key states of performance; It can independently be decoded; And the intraframe data amount is very big, in contrast, non-key frame then can not independently be decoded; And the data volume in the frame is much smaller than data volume, common key frame such as the I frame of key frame.
Receive after the file playing request, opens an index file handle, this index file handle is that the offset address of predetermined number key frame and relation that timestamp shines upon one by one deposit in the concordance list of index file handle foundation with the quantity of traversal.Preparatory traversal quantity of key frames specifically is set, is provided with according to the actual requirements, such as; Change more for a long time in F.F., fast reverse play, be provided with expression in advance traversal key frame quantity value more greatly so that the key frame that before playing video file, traveled through is more; Like this, when playing video file, also can find timestamp fast with F.F., rewind down time coupling; On the contrary, it is a little bit smaller the value of expression traversal key frame quantity then can be set.Because before playing video file; Quantity is the mapping relations of the timestamp and the offset address of predetermined number key frame in the store video files; In the process of playing video file, continue to travel through the key frame that does not travel through in the video file again, and store the timestamp of the key frame that traveled through and the mapping relations of offset address; Thereby be provided with in advance the traversal quantity of key frames can reduce the time that the user waits for playing video file, thereby improve user experience.
In the concordance list that the indexed file handle is set up, each offset address is corresponding with a timestamp, just can search corresponding with it offset address according to timestamp, and can find the key frame in the video file according to this offset address.Certainly, also can be with the information of key frame, deposit in the concordance list together like position, the title of this key frame.
Wherein, the key frame of traversal predetermined number, and the step of setting up the concordance list of the key frame traveled through is specially:
Whether the frame of judging current traversal is key frame;
When the frame of current traversal is key frame, the frame of this current traversal offset address and the mapping relations between the timestamp in video file are deposited in the concordance list.If the frame of current traversal is not a key frame, then continues a back frame of the current traversal frame of search, and judge whether a back frame of the frame of current traversal is key frame.
Frame head information judges in order to identify the type of a frame whether the frame of current traversal is key frame, can judge through the frame head information of resolving this frame.Certainly, when whether the frame in judging the flv file is key frame, can judge this is whether be key frame because each frame of flv file all has corresponding sign if identifying this frame through the sign in the frame.In addition, because the data volume of key frame much larger than the data volume of non-key frame, therefore, also can judge that whether this frame is key frame, does not limit here through the data volume that compares in each frame.
As an alternative embodiment of the invention, storing the timestamp of key frame and the concordance list of offset address mapping relations can be stored in the internal memory, so that this concordance list of quick calling.Certainly, can with this index table stores in a file, not limit here yet.
In step S102, the beginning played file is opened the played file handle, played file, and in played file handle played file, the index file handle continues the not key frame of traversal of traversal, and upgrade concordance list according to the key frame that has traveled through;
Open a played file handle; Search timestamp in the concordance list of this played file handle indexed file handle with current reproduction time coupling; According to the mapping relations of timestamp in the concordance list and offset address, search the corresponding offset address of timestamp with current reproduction time coupling.Such as, 13 seconds corresponding offset addresss of the timestamp of index table stores are 100, and timestamp is that 30 seconds corresponding offset addresss are 300, and the timestamp of coupling is 13 seconds with the current time, and the offset address that then searched in 13 seconds according to this timestamp is 100.
Wherein, and according to the step that the key frame that traveled through upgrades concordance list be specially:
Deposit offset address and mapping relations timestamp between of the key frame that has traveled through in video file in concordance list.
In the embodiment of the invention; In the process of played file handle playing video file; The index file handle continues to travel through the key frame that does not travel through in the video file, and offset address and mapping relations timestamp between of the key frame that will travel through in video file deposit in the concordance list of index file handle foundation.
In step S103, according to the request of concordance list response playing.
Send F.F., rewind down or the playing request of location and the offset address that searches, playing video file in the played file handle according to the user who receives.
As one embodiment of the present of invention; The user needs the current video file of watching of F.F.; Then receive the fast-forward play request that the user sends, search the timestamp with the current time coupling in the concordance list of played file handle indexed file handle, and according to the mapping relations of this timestamp and offset address; In concordance list, search after the offset address corresponding with this timestamp, the played file handle is play the corresponding key frame of this offset address.Continue to seek the next key frame of playing; Owing to what receive is the fast-forward play request that the user sends, i.e. key frame in the fast-forward play video file, the then timestamp of the next key frame of playing; Back timestamp for current time stamp in the concordance list; Continue above-mentioned steps, up to receiving last timestamp that finishes the fast-forward play request or be played to index table stores, played file handle finishes video file.Wherein, this timestamp is that last key frame time corresponding is stabbed in the video file.
As an alternative embodiment of the invention; The user needs the current video file of watching of rewind down; Then receive the fast reverse play request that the user sends, search the timestamp with the current time coupling in the concordance list of played file handle indexed file handle, and according to the mapping relations of this timestamp and offset address; In concordance list, search after the offset address corresponding with this timestamp, the played file handle is play the corresponding key frame of this offset address.Continuing to seek the next key frame of playing, is the fast reverse play request that the user sends owing to what receive, i.e. key frame in the fast reverse play video file; The timestamp of the then next key frame of playing; Be the previous timestamp that the current time in the concordance list stabs, the played file handle is searched for the corresponding offset address of this timestamp in concordance list, find after the offset address; The played file handle is play the corresponding key frame of this offset address; Continue above-mentioned steps, finish the fast reverse play request or be played to the corresponding key frame of first timestamp of index table stores, played file handle finishes video file up to receiving.
As another embodiment of the present invention; The user need play the current video file of watching from new broadcast point; Then receive the request that the user sends from new broadcast point broadcast; Search the timestamp with new broadcast point time coupling in the concordance list of played file handle indexed file handle, and, in concordance list, search for the offset address corresponding with this timestamp according to the mapping relations of this timestamp and offset address; The played file handle is play the corresponding key frame of this offset address, and continues to play a back frame adjacent with this frame.
As an alternative embodiment of the invention, if when receiving F.F. or fast rewinding request, the played file handle does not find the timestamp with coupling of new broadcast point time in concordance list; Then the indexed file handle has traveled through next key frame; And after depositing in the mapping relations of timestamp and the offset address of this key frame in video file in the concordance list, the played file handle continues to search the timestamp with the current time coupling again, if the timestamp of searching exists; Then search the corresponding offset address of timestamp; And play the corresponding key frame of this offset address, repeat above-mentioned steps, up to the timestamp that finds coupling.If receive when new broadcast point is play file request; The played file handle does not find the timestamp with new broadcast point time coupling in concordance list, whether the difference that then can judge broadcast point time that this is new and the timestamp in the concordance list is in preset difference range, if in the difference range of presetting; Then play and the minimum pairing key frame of timestamp of the difference of new broadcast point time; Such as, preset difference range is 1 second, the new broadcast point time is 10 seconds; In the concordance list the pairing timestamp of key frame have 2 seconds, 5 seconds, 7 seconds, 9 seconds, 12 seconds; Since the new broadcast point time be 10 seconds minimum with 9 seconds difference, therefore in the user need fix a point video file during 10 seconds frame, played file handle reproduction time stamp is 9 seconds pairing key frames.If the difference of new broadcast point time and the timestamp in the concordance list is not in preset difference range; Then the indexed file handle has traveled through next key frame; And after depositing in the mapping relations of timestamp and the offset address of this key frame in video file in the concordance list; The played file handle continues to search the timestamp that matees with current time or new broadcast point time again; If the timestamp of searching exists, then search the corresponding offset address of timestamp, and play the corresponding key frame of this offset address; Repeat above-mentioned steps, in the difference range of presetting with the difference of the timestamp in the concordance list up to the timestamp that finds coupling or new broadcast point time.Because when played file handle playing video file; The index file handle is also at the key frame that continues the traversal video file; And set up concordance list; Therefore, even there is not the timestamp that matees with the time of playing request in the concordance list, the played file handle searches the timestamp that matees with the time of playing request again need not expend the too much time yet.
In the embodiment of the invention; The index file handle travels through the key frame of predetermined number before played file handle playing video file, and sets up the concordance list that has traveled through key frame; In the process of played file handle playing video file; The key frame that does not travel through in the index file handle continuation traversal video file owing to opened index file handle and played file handle, makes the concordance list and the playing video file of foundation, store video files to carry out simultaneously.Thereby when receiving playing request, can respond the user fast.Because before playing video file, do not set up the concordance list of all key frames of video file, thereby can effectively reduce the time that the user waits for playing video file, thereby improve user experience again.
Embodiment two:
Fig. 2 shows the structure of the no index video file fast forwarding and fast rewinding device that the embodiment of the invention provides, and for the ease of explanation, only shows the part relevant with the embodiment of the invention.
Set up concordance list unit 201, be used for when receiving the file playing request, open the index file handle, travel through the key frame of predetermined number, and set up the concordance list of the key frame that has traveled through;
Played file unit 202 is used to begin played file, opens the played file handle, played file, and in played file handle played file, the index file handle continues the not key frame of traversal of traversal, and upgrade concordance list according to the key frame that has traveled through;
Response playing unit 203 is used for according to the request of concordance list response playing.
In the embodiment of the invention, before playing video file, set up concordance list unit 201 when receiving the file playing request; Open the index file handle, travel through the key frame of predetermined number, and set up the concordance list of the key frame that has traveled through; After concordance list had deposited the key frame information of preset traversal quantity in, the played file handle was opened in played file unit 202, and played file meanwhile; The index file handle continues to travel through the key frame that does not travel through in the video file; And the key frame of renewal concordance list, if receive new playing request, then response playing unit 203 is according to information response's playing request of index table stores key frame.Owing to before playing video file, set up concordance list unit 201 and do not set up concordance list, thereby can effectively reduce the time that the user waits for playing video file, thereby improve user experience for all key frames of video file.
As an alternative embodiment of the invention, set up concordance list unit 201 and also comprise judging unit 2011, be used to judge whether the frame of current traversal is key frame; Storage unit 2012 is used for when the frame of current traversal is key frame, and the frame of this current traversal offset address and the mapping relations between the timestamp in video file are deposited in the concordance list.
In the embodiment of the invention,, therefore need judge those earlier for key frame, so that the index file handle is set up concordance list for this key frame owing to have key frame and non-key frame in the video file.
As an alternative embodiment of the invention, response playing unit 203 also comprises fast-forward play module 2031 and/or fast reverse play module 2032 and/or positioning playing module 2033.Wherein, Fast-forward play module 2031; Be used for if playing request is the F.F. request, the played file handle is searched the timestamp with the current time coupling in concordance list, and the search offset address corresponding with said timestamp; Play the corresponding key frame of said offset address, continue in concordance list, to search a back timestamp of said timestamp; Fast reverse play module 2032; Be used for if playing request is a fast rewinding request; The played file handle is searched the timestamp with the current time coupling in concordance list; And the search offset address corresponding with said timestamp, play the corresponding key frame of said offset address, continue in concordance list, to search the previous timestamp of said timestamp; Positioning playing module 2033; Be used for if the request of playing request for playing from new broadcast point; The played file handle is searched the timestamp with coupling of new broadcast point time in concordance list; The search offset address corresponding with said timestamp play the corresponding key frame of said offset address again, and continues to play the next frame of said key frame.
As an alternative embodiment of the invention; Response playing unit 203 can also comprise waits for playing module 2034; Be used for if when playing request is the request of F.F. or rewind down; The played file handle does not find the timestamp with the current time coupling in concordance list; The key frame that then indexed file handle traversal is new is also set up after the concordance list of the key frame that has traveled through; The played file handle continues in concordance list, to search the timestamp with the current time coupling, if be during from request that new broadcast point is play in playing request, the played file handle in concordance list, do not find with perhaps said new broadcast point time of the timestamp of coupling of new broadcast point time and concordance list in the difference of timestamp not in preset range the time; The key frame that then indexed file handle traversal is new is also set up after the concordance list of the key frame that has traveled through, and the played file handle continues in concordance list, to search and coupling of new broadcast point time or the timestamp of difference in preset range.
In the embodiment of the invention,,, search the offset address corresponding, and play the corresponding key frame of this offset address with this timestamp then according to this timestamp if the played file handle finds the timestamp that matees with the playing request time in concordance list; If the played file handle does not find the timestamp with playing request time coupling in concordance list; Then the indexed file handle has traveled through a new key frame; And set up after the concordance list of this key frame, the played file handle continues in concordance list, to search the timestamp that matees with the playing request time.Because index file handle and played file handle are worked simultaneously, therefore can effectively shorten the time that the user waits for that video file is play, improve user experience.
Embodiment three:
As one embodiment of the present of invention; The no index video file fast forwarding and fast rewinding device of embodiment two can be to run on the unit that software unit, hardware cell or software and hardware in the Play System combine, and also can be used as independently, suspension member is integrated in these Play Systems or runs in the application system of these Play Systems.
In the embodiment of the invention; The index file handle travels through the key frame of predetermined number before played file handle playing video file, and sets up the concordance list that has traveled through key frame; In the process of played file handle playing video file; The key frame that does not travel through in the index file handle continuation traversal video file owing to opened index file handle and played file handle, makes the concordance list and the playing video file of foundation, store video files to carry out simultaneously.Thereby when receiving playing request, can respond the user fast.Because before playing video file, do not set up the concordance list of all key frames of video file, thereby can effectively reduce the time that the user waits for playing video file, thereby improve user experience again.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. no index video file fast forwarding and fast rewinding method is characterized in that said method comprises:
When receiving the file playing request, open the index file handle, travel through the key frame of predetermined number, and set up the concordance list of the key frame that has traveled through;
The beginning played file is opened the played file handle, played file, and in played file handle played file, the index file handle continues the not key frame of traversal of traversal, and upgrade concordance list according to the key frame that has traveled through;
According to the request of concordance list response playing.
2. the method for claim 1 is characterized in that, the key frame of said traversal predetermined number, and the step of setting up the concordance list of the key frame traveled through is specially:
Whether the frame of judging current traversal is key frame;
When the frame of current traversal is key frame, the frame of said current traversal offset address and the mapping relations between the timestamp in video file are deposited in the concordance list.
3. the method for claim 1 is characterized in that, and is said and be specially according to the step that the key frame that traveled through upgrades concordance list:
Deposit offset address and mapping relations timestamp between of the key frame that has traveled through in video file in concordance list.
4. the method for claim 1 is characterized in that, said step according to the request of concordance list response playing is specially:
If playing request is the F.F. request; The played file handle is searched the timestamp with the current time coupling in concordance list; And the search offset address corresponding with said timestamp, play the corresponding key frame of said offset address, continue in concordance list, to search a back timestamp of said timestamp; Perhaps,
If playing request is a fast rewinding request; The played file handle is searched the timestamp with the current time coupling in concordance list; And the search offset address corresponding with said timestamp, play the corresponding key frame of said offset address, continue in concordance list, to search the previous timestamp of said timestamp; Perhaps,
If playing request is the request of playing from new broadcast point; The played file handle is searched the timestamp with coupling of new broadcast point time in concordance list; Search for the offset address corresponding again with said timestamp; Play the corresponding key frame of said offset address, and continue to play a back frame of said key frame.
5. the method for claim 1 is characterized in that, said step according to the request of concordance list response playing is specially:
If when playing request is the request of F.F. or rewind down; The played file handle does not find the timestamp with the current time coupling in concordance list; The key frame that then indexed file handle traversal is new is also set up after the concordance list of the key frame that has traveled through, and the played file handle continues in concordance list, to search the timestamp that matees with the current time;
If when playing request be the request from the broadcast of new broadcast point; The played file handle in concordance list, do not find with the timestamp of new broadcast point time coupling or said new broadcast point time and concordance list in the difference of timestamp not in preset range the time; The key frame that then indexed file handle traversal is new is also set up after the concordance list of the key frame that has traveled through, and the played file handle continues in concordance list, to search and coupling of new broadcast point time or the timestamp of difference in preset range.
6. no index video file fast forwarding and fast rewinding device is characterized in that said device comprises:
Set up the concordance list unit, be used for when receiving the file playing request, open the index file handle, travel through the key frame of predetermined number, and set up the concordance list of the key frame that has traveled through;
The played file unit is used to begin played file, opens the played file handle, played file, and in played file handle played file, the index file handle continues the not key frame of traversal of traversal, and upgrade concordance list according to the key frame that has traveled through;
The response playing unit is used for according to the request of concordance list response playing.
7. device as claimed in claim 6 is characterized in that, the said concordance list unit of setting up also comprises:
Judging unit is used to judge whether the frame of current traversal is key frame;
Storage unit is used for when the frame of current traversal is key frame, and the frame of said current traversal offset address and the mapping relations between the timestamp in video file are deposited in the concordance list.
8. device as claimed in claim 6 is characterized in that, said response playing unit also comprises:
The fast-forward play module; Be used for if playing request is the F.F. request; The played file handle is searched the timestamp with the current time coupling in concordance list; And the search offset address corresponding with said timestamp, play the corresponding key frame of said offset address, continue in concordance list, to search a back timestamp of said timestamp; Perhaps,
The fast reverse play module; Be used for if playing request is a fast rewinding request; The played file handle is searched the timestamp with the current time coupling in concordance list; And the search offset address corresponding with said timestamp, play the corresponding key frame of said offset address, continue in concordance list, to search the previous timestamp of said timestamp; Perhaps,
The positioning playing module; Be used for if the request of playing request for playing from new broadcast point; The played file handle is searched the timestamp with coupling of new broadcast point time in concordance list; The search offset address corresponding with said timestamp play the corresponding key frame of said offset address again, and continues to play a back frame of said key frame.
9. device as claimed in claim 6 is characterized in that, said response playing unit also comprises:
Wait for playing module; Be used for if when playing request is the request of F.F. or rewind down; The played file handle does not find the timestamp with the current time coupling in concordance list; The key frame that then indexed file handle traversal is new is also set up after the concordance list of the key frame that has traveled through; The played file handle continues in concordance list, to search the timestamp that matees with the current time; If when playing request be the request from the broadcast of new broadcast point; The played file handle in concordance list, do not find with the timestamp of new broadcast point time coupling or said new broadcast point time and concordance list in the difference of timestamp not in preset range the time, the key frame that then indexed file handle traversal is new is also set up after the concordance list of the key frame that has traveled through, the played file handle continues in concordance list, to search and the perhaps timestamp of difference in preset range of new broadcast point time coupling.
10. Play System that comprises no index video file fast forwarding and fast rewinding device.
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| CN2010105349256A CN102467940A (en) | 2010-11-08 | 2010-11-08 | Fast forward and fast rewind method and device for index-free video file, and play system |
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| CN2010105349256A CN102467940A (en) | 2010-11-08 | 2010-11-08 | Fast forward and fast rewind method and device for index-free video file, and play system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780919A (en) * | 2012-08-24 | 2012-11-14 | 乐视网信息技术（北京）股份有限公司 | Method for carrying out video location and displaying through key frame |
| CN103686246A (en) * | 2013-11-26 | 2014-03-26 | 小米科技有限责任公司 | Timed playback method, device, facility and system of transport stream video |
| WO2015169172A1 (en) * | 2014-05-05 | 2015-11-12 | 华为技术有限公司 | Network video playing method and device |
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| WO2017113363A1 (en) * | 2015-12-31 | 2017-07-06 | 华为技术有限公司 | Method for adjusting multimedia playback progress |
| CN106975221A (en) * | 2017-03-30 | 2017-07-25 | 武汉斗鱼网络科技有限公司 | User terminal and game data live broadcast device and method |
| CN113395589A (en) * | 2021-06-11 | 2021-09-14 | 深圳市斯博科技有限公司 | Video file playing method and device, computer equipment and storage medium |
| CN113596518A (en) * | 2021-08-13 | 2021-11-02 | 北京中电兴发科技有限公司 | Video access method for improving double-speed playing performance |
| CN115905124A (en) * | 2022-11-03 | 2023-04-04 | 昆易电子科技(上海)有限公司 | Multi-type data file playback method, device, equipment and medium |
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Cited By (18)
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|---|---|---|---|---|
| CN102780919A (en) * | 2012-08-24 | 2012-11-14 | 乐视网信息技术（北京）股份有限公司 | Method for carrying out video location and displaying through key frame |
| CN103686246A (en) * | 2013-11-26 | 2014-03-26 | 小米科技有限责任公司 | Timed playback method, device, facility and system of transport stream video |
| CN103686246B (en) * | 2013-11-26 | 2017-03-15 | 小米科技有限责任公司 | Player method, device, equipment and system when transmission stream video is selected |
| US10476928B2 (en) | 2014-05-05 | 2019-11-12 | Huawei Technologies Co., Ltd. | Network video playback method and apparatus |
| WO2015169172A1 (en) * | 2014-05-05 | 2015-11-12 | 华为技术有限公司 | Network video playing method and device |
| CN105306973A (en) * | 2014-07-14 | 2016-02-03 | 中国科学院声学研究所 | Method for generating multiplied-speed video file |
| CN112087666A (en) * | 2015-12-31 | 2020-12-15 | 华为技术有限公司 | Method for adjusting multimedia playing progress |
| WO2017113363A1 (en) * | 2015-12-31 | 2017-07-06 | 华为技术有限公司 | Method for adjusting multimedia playback progress |
| US10904627B2 (en) | 2015-12-31 | 2021-01-26 | Huawei Technologies Co., Ltd. | Method for adjusting multimedia playing progress |
| CN112087666B (en) * | 2015-12-31 | 2021-06-15 | 华为技术有限公司 | Method for adjusting multimedia playing progress |
| US11259090B2 (en) | 2015-12-31 | 2022-02-22 | Huawei Technologies Co., Ltd. | Method for adjusting multimedia playing progress |
| CN106975221A (en) * | 2017-03-30 | 2017-07-25 | 武汉斗鱼网络科技有限公司 | User terminal and game data live broadcast device and method |
| CN113395589A (en) * | 2021-06-11 | 2021-09-14 | 深圳市斯博科技有限公司 | Video file playing method and device, computer equipment and storage medium |
| CN113395589B (en) * | 2021-06-11 | 2023-02-10 | 深圳万兴软件有限公司 | Video file playing method and device, computer equipment and storage medium |
| CN113596518A (en) * | 2021-08-13 | 2021-11-02 | 北京中电兴发科技有限公司 | Video access method for improving double-speed playing performance |
| CN113596518B (en) * | 2021-08-13 | 2022-04-08 | 北京中电兴发科技有限公司 | Video access method for improving double-speed playing performance |
| CN115905124A (en) * | 2022-11-03 | 2023-04-04 | 昆易电子科技(上海)有限公司 | Multi-type data file playback method, device, equipment and medium |
| CN115905124B (en) * | 2022-11-03 | 2024-04-30 | 昆易电子科技(上海)有限公司 | Playback method, device, equipment and medium for multi-type data file |
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