CN103905888A - Live broadcast recording method and live broadcast recorder - Google Patents
Live broadcast recording method and live broadcast recorder Download PDFInfo
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- CN103905888A CN103905888A CN201410083406.0A CN201410083406A CN103905888A CN 103905888 A CN103905888 A CN 103905888A CN 201410083406 A CN201410083406 A CN 201410083406A CN 103905888 A CN103905888 A CN 103905888A
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Abstract
The invention discloses a live broadcast recording method and a live broadcast recorder. The method includes the steps that a first video clip played by a first live broadcast source and a second video clip played by a second live broadcast source are synchronously recorded by the live broadcast recorder in a preset time, wherein the first video clip is the same as the second video clip; the recorded first video clip and the recorded second video clip are stored into a shared memory; the stored first video clip or the stored second video clip is selected as a target video clip; the target video clip is written into a disk. By means of the method, the number of needed live broadcast recorders and disk space occupied by the live broadcast recorder can be reduced.
Description
Technical field
The present invention relates to field of video processing, be specifically related to a kind of live method for recording and live transcripter.
Background technology
Live recording is under the video data of broadcasting being recorded when live, for follow-up time shift, review the video file that physics is provided.At present, the live mode of recording is: for active and standby two the live transcripters of each channel fix, in the time of recorded video data, allow active and standby live transcripter record simultaneously, and the video data of recording is separately write in disk separately.
Because the probability of program recording failure in channel is very low, but in aforesaid way, adopt active and standby live transcripter recorded video data simultaneously always, thereby cause the quantity of live transcripter double, the disk space of needs is double.
Summary of the invention
The invention discloses a kind of live method for recording and live transcripter, for saving the quantity of live transcripter and the disk space of live transcripter.
Embodiment of the present invention first aspect discloses a kind of live method for recording, comprising:
Live transcripter is recorded the first video segment of the first live source broadcasting and the second video segment that the second live source is play in Preset Time simultaneously, and wherein, described the first video segment is identical with described the second video segment;
Described the first video segment of recording and described the second video segment are stored to shared drive by described live transcripter;
Described live transcripter from storage described the first video segment and described the second video segment choose a video segment as target video fragment;
Described target video fragment is write disk by described live transcripter.
Embodiment of the present invention second aspect discloses a kind of live transcripter, comprising:
Internal memory transcripter, for record the first video segment of the first live source broadcasting and the second video segment that the second live source is play in Preset Time simultaneously, wherein, described the first video segment is identical with described the second video segment;
Shared drive, described the first video segment and described the second video segment recorded for storing described internal memory transcripter;
Chooser, chooses a video segment as target video fragment for described the first video segment from described shared drive storage and described the second video segment;
Write device, writes disk for the described target video fragment that described Chooser is chosen.
In the embodiment of the present invention, after live transcripter is recorded the first video segment of the first live source broadcasting and the second video segment of the second live source broadcasting in Preset Time simultaneously, the first video segment of recording and the second video segment are stored to shared drive, from the first video segment of storage and the second video segment, choose a video segment as target video fragment, and target video fragment is write to disk.In the embodiment of the present invention, record the same video segment of two live source broadcastings with a live transcripter, the quantity that can save live transcripter simultaneously; In addition, only a video segment of recording need to be write to disk, therefore, can save the disk space of live transcripter.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of the disclosed a kind of live method for recording of the embodiment of the present invention;
Fig. 2 is the flow chart of the live method for recording of the disclosed another kind of the embodiment of the present invention;
Fig. 3 is the structure chart of the disclosed a kind of live transcripter of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
A kind of live method for recording and live transcripter are disclosed in the embodiment of the present invention, for saving the quantity of live transcripter and the disk space of live transcripter.Below be elaborated respectively.
Refer to Fig. 1, Fig. 1 is the flow chart of the disclosed a kind of live method for recording of the embodiment of the present invention.As shown in Figure 1, this live method for recording can comprise the following steps.
S101, live transcripter are recorded the first video segment of the first live source broadcasting and the second video segment that the second live source is play in Preset Time simultaneously, and wherein, the first video segment is identical with the second video segment.
Alternatively, in Preset Time, record the same video of two different live source broadcastings with a live transcripter simultaneously, the first video segment that the first live source is play can be recorded by the first internal memory transcripter of live transcripter, and the second video segment that the second live source is play can be recorded by the second internal memory transcripter of live transcripter.Wherein, Preset Time can be 5 seconds, also can be 10 seconds, and can arrange as required, the embodiment of the present invention is not construed as limiting.
The first video segment of recording and the second video segment are stored to shared drive by S102, live transcripter.
Alternatively, recording time equals after Preset Time, and the second video segment that the first video segment that live transcripter is recorded the first internal memory transcripter and the second internal memory transcripter are recorded is stored to shared drive, is convenient to subsequent calls.
S103, live transcripter choose a video segment as target video fragment from the first video segment of storage and the second video segment.
Alternatively, in the first video segment that live transcripter is stored from shared drive and the second video segment, choose one and record successful video segment as target video fragment.
Target video fragment is write disk by S104, live transcripter.
Alternatively, the target video fragment of choosing is write to disk storage, be convenient to follow-up for time shift, review etc.Wherein, in the time that the first video segment is recorded successfully, target video fragment is the first video segment; Record unsuccessfully when the first video segment, and the second video segment is while recording successfully, and target video fragment is the second video segment.
In the live method for recording shown in Fig. 1, after live transcripter is recorded the first video segment of the first live source broadcasting and the second video segment of the second live source broadcasting in Preset Time simultaneously, the first video segment of recording and the second video segment are stored to shared drive, from the first video segment of storage and the second video segment, choose a video segment as target video fragment, and target video fragment is write to disk.In the embodiment of the present invention, record the same video segment of two live source broadcastings with a live transcripter, the quantity that can save live transcripter simultaneously; In addition, only a video segment of recording need to be write to disk, therefore, can save the disk space of live transcripter.
Refer to Fig. 2, Fig. 2 is the flow chart of the live method for recording of the disclosed another kind of the embodiment of the present invention.As shown in Figure 2, this live method for recording can comprise the following steps.
S201, live transcripter are recorded the first video segment of the first live source broadcasting and the second video segment that the second live source is play in Preset Time simultaneously, and wherein, the first video segment is identical with the second video segment.
Alternatively, in Preset Time, record the same video of two different live source broadcastings with a live transcripter simultaneously, the first video segment that the first live source is play can be recorded by the first internal memory transcripter of live transcripter, and the second video segment that the second live source is play can be recorded by the second internal memory transcripter of live transcripter.Wherein, Preset Time can be 5 seconds, also can be 10 seconds, and can arrange as required, the embodiment of the present invention is not construed as limiting.
The first video segment of recording and the second video segment are stored to shared drive by S202, live transcripter.
Alternatively, recording time equals after Preset Time, and the second video segment that the first video segment that live transcripter is recorded the first internal memory transcripter and the second internal memory transcripter are recorded is stored to shared drive, is convenient to subsequent calls.
S203, live transcripter judge whether the first video segment of storage is recorded successfully.
As a kind of possible execution mode, live transcripter judges whether the first video segment of storage is recorded successfully and can be comprised the following steps.
Steps A, the live transcripter code stream when recording the first video segment is multiplied by Preset Time, obtains the theoretical quantity of the frame of the first video segment of recording in Preset Time.
Alternatively, code stream when live transcripter is recorded the first video segment is certain value, Preset Time is also certain value, and the code stream while recording the first video segment is multiplied by the theoretical quantity of the frame of the first video segment that Preset Time can obtain should being recorded in Preset Time.
Step B, live transcripter judge that whether the actual quantity of frame of the first video segment of storage is consistent with the theoretical quantity of the frame of the first video segment of recording in Preset Time.
Alternatively, after the theoretical quantity of the frame of the first video segment that obtains should being recorded in Preset Time, whether live transcripter is by consistent with the theoretical quantity of the frame of the first video segment obtaining the actual quantity of frame of the first video segment that judges shared drive storage.The actual quantity of the frame of the first video segment does not need to equate completely with the theoretical quantity of the frame of the first video segment, can think and differ while being no more than certain percentage when the actual quantity of the first video segment and the theoretical quantity of the first video segment, the actual quantity of the frame of the first video segment is consistent with the theoretical quantity of the frame of the first video segment; Wherein, this percentage can be 1%, can be also 5%, specifically can set as required, and the embodiment of the present invention is not construed as limiting.
If the actual quantity of the frame of the first video segment of step C storage is consistent with the theoretical quantity of the frame of the first video segment of recording in Preset Time, the content identification of the first video segment that judges storage is met video encoding standard by whether live transcripter.
Alternatively, when the actual quantity of frame of the first video segment and the theoretical quantity of the frame of the first video segment consistent after, the first video segment that judges shared drive storage is met video encoding standard by whether live transcripter.Video encoding standard is MPEG(moving picture experts group) standard, when Video coding take bag as unit, wherein, comprise packet header and bag data, packet header is the content identification of bag data, packet header is according to mpeg standard coding, and what information that each byte in packet header should be stored bag data has standard.Whether the first video segment that therefore, judges storage meets mpeg standard is exactly whether encode according to mpeg standard in packet header of each bag of judging that the first video segment comprises.
If the first video segment of S204 storage is recorded successfully, live transcripter is using the first video segment of storage as target video fragment.
Alternatively, when the actual quantity of frame of the first video segment of storage consistent with the theoretical quantity of the frame of the first video segment of recording in Preset Time, and when the content identification of the first video segment of storage meets mpeg standard, the first video segment that shows storage is recorded successfully, and live transcripter is using the first video segment of storage as target video fragment.
If the first video segment of S205 storage is not recorded successfully, whether live transcripter is recorded the second video segment that judges storage successfully.
Alternatively, when the theoretical quantity of the frame of the first video segment of recording in the actual quantity of frame of the first video segment of storage and Preset Time inconsistent, or the content identification of the first video segment of storage is not while meeting mpeg standard, the first video segment that shows storage is not recorded successfully, and live transcripter need to continue to judge whether the second video segment of storage is recorded successfully.
As a kind of possible execution mode, live transcripter judges whether the second video segment of storage is recorded successfully and can be comprised the following steps.
Steps A, the live transcripter code stream when recording the second video segment is multiplied by Preset Time, obtains the theoretical quantity of the frame of the second video segment of recording in Preset Time, and the code stream of the code stream while recording the first video segment when recording the second video segment is identical.
Alternatively, code stream when live transcripter is recorded the second video segment is certain value, Preset Time is also certain value, and the code stream while recording the second video segment is multiplied by the theoretical quantity of the frame of the second video segment that Preset Time can obtain should being recorded in Preset Time.Wherein, the code stream of code stream when live transcripter is recorded the first video segment when recording the second video segment is identical.
Step B, live transcripter judge that whether the actual quantity of frame of the second video segment of storage is consistent with the theoretical quantity of the frame of the second video segment of recording in Preset Time.
Alternatively, after the theoretical quantity of the frame of the second video segment that obtains should being recorded in Preset Time, whether live transcripter is by consistent with the theoretical quantity of the frame of the second video segment obtaining the actual quantity of frame of the second video segment that judges shared drive storage.The actual quantity of the frame of the second video segment does not need to equate completely with the theoretical quantity of the frame of the second video segment, can think and differ while being no more than certain percentage when the actual quantity of the second video segment and the theoretical quantity of the second video segment, the actual quantity of the frame of the second video segment is consistent with the theoretical quantity of the frame of the second video segment; Wherein, this percentage can be 1%, can be also 5%, specifically can set as required, and the embodiment of the present invention is not construed as limiting.
If the actual quantity of the frame of the second video segment of step C storage is consistent with the theoretical quantity of the frame of the second video segment of recording in Preset Time, the content identification of the second video segment that judges storage is met video encoding standard by whether live transcripter.
Alternatively, when the actual quantity of frame of the second video segment and the theoretical quantity of the frame of the second video segment consistent after, the second video segment that judges shared drive storage is met video encoding standard by whether live transcripter.
If the second video segment of S206 storage is recorded successfully, live transcripter is using the second video segment of storage as target video fragment.
Alternatively, when the actual quantity of frame of the second video segment of storage consistent with the theoretical quantity of the frame of the second video segment of recording in Preset Time, and when the content identification of the second video segment of storage meets mpeg standard, the second video segment that shows storage is recorded successfully, and live transcripter is using the second video segment of storage as target video fragment.
Target video fragment is write disk by S207, live transcripter.
Alternatively, live transcripter obtains after target video, and target video fragment is write to disk storage, be convenient to follow-up for time shift, review etc.Wherein, in the time that the first video segment is recorded successfully, target video fragment is the first video segment; Record unsuccessfully when the first video segment, and the second video segment is while recording successfully, and target video fragment is the second video segment.
If it is unsuccessful that S208 the second video segment is recorded, failure is recorded in prompting by live transcripter.
Alternatively, record unsuccessfully when the first video segment, and the second video segment records when unsuccessful, and failure is recorded in prompting by live transcripter, can, by voice message, also can point out by alternate manner, and the embodiment of the present invention is not construed as limiting.
S206, live transcripter are removed the first video segment and second video segment of shared drive storage.
Alternatively, after prompting is recorded failure or target video fragment is write to disk, live transcripter will be removed the first video segment and second video segment of shared drive storage, and guarantee has enough shared drives in follow-up recording process.
In the live method for recording shown in Fig. 2, after live transcripter is recorded the first video segment of the first live source broadcasting and the second video segment of the second live source broadcasting in Preset Time simultaneously, the first video segment of recording and the second video segment are stored to shared drive, from storage the first video segment and the second video segment choose a video segment as target video fragment, target video fragment is write to disk, and remove the first video segment and second video segment of shared drive storage.In the embodiment of the present invention, record the same video segment of two live source broadcastings with a live transcripter, the quantity that can save live transcripter simultaneously; In addition, only a video segment of recording need to be write to disk, therefore, can save the disk space of live transcripter.
Refer to Fig. 3, Fig. 3 is the structure chart of the disclosed a kind of live transcripter of the embodiment of the present invention.As shown in Figure 3, this live transcripter 300 can comprise:
Shared drive 302, the first video segment of recording for stored memory transcripter 301 and the second video segment;
As a kind of possible execution mode, Chooser 303 can comprise:
The first judge module 3031, for judging whether the first video segment that shared drive 302 is stored is recorded successfully;
As a kind of possible execution mode, Chooser 303 can also comprise:
The second judge module 3033, when being no when the judged result of the first judge module 3031, judges whether the second video segment that shared drive 302 is stored is recorded successfully;
Correspondingly, when the judged result of the second judge module 3033 is while being no, prompting is recorded to failure.
As a kind of possible execution mode, the first judge module 3031 can comprise:
First obtains unit 30311, is multiplied by Preset Time for the code stream when recording the first video segment, obtains the theoretical quantity of the frame of the first video segment of recording in Preset Time;
The first judging unit 30312, whether consistent for judging that the actual quantity and first of frame of the first video segment that shared drive 302 stores obtains the theoretical quantity of frame of the first video segment of recording in the Preset Time that unit 30311 obtains;
The second judging unit 30313, for when the judged result of the first judging unit 30312 is when being, whether the content identification that judges the first video segment that shared drive 302 stores meets video encoding standard, when the judged result of the second judging unit 30313 is when being, show that the first video segment of shared drive storage is recorded successfully.
Correspondingly, when the judged result of the first judging unit 30312 is while being no, the second judge module 3033 is for judging whether the second video segment that shared drive 302 is stored is recorded successfully.
As a kind of possible execution mode, the second judge module 3033 can comprise:
Second obtains unit 30331, be multiplied by Preset Time for the code stream when recording the second video segment, obtain the theoretical quantity of the frame of the second video segment of recording in Preset Time, the code stream of the code stream while recording the first video segment when recording the second video segment is identical;
The 3rd judging unit 30332, whether consistent for judging that the actual quantity and second of frame of the second video segment that shared drive 302 stores obtains the theoretical quantity of frame of the second video segment of recording in the Preset Time that unit 30331 obtains;
The 4th single 30333 yuan of judgement, for when the judged result of the 3rd judging unit 30332 is when being, whether the content identification that judges the second video segment that shared drive 302 stores meets video encoding standard, when the judged result of the 4th judging unit 30333 is when being, show that the second video segment that shared drive 302 is stored records successfully.
Correspondingly, when the judged result of the 3rd judging unit 30332 is while being no, prompting is recorded to failure.
As a kind of possible execution mode, live transcripter 300 can also comprise:
In the live transcripter shown in Fig. 3, after live transcripter is recorded the first video segment of the first live source broadcasting and the second video segment of the second live source broadcasting in Preset Time simultaneously, the first video segment of recording and the second video segment are stored to shared drive, from storage the first video segment and the second video segment choose a video segment as target video fragment, target video fragment is write to disk, and remove the first video segment and second video segment of shared drive storage.In the embodiment of the present invention, record the same video segment of two live source broadcastings with a live transcripter, the quantity that can save the live transcripter in live recording system simultaneously; In addition, only a video segment of recording need to be write to disk, therefore, can save the disk space of live transcripter.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of above-described embodiment is can carry out the hardware that instruction is relevant by program to complete, this program can be stored in a computer-readable recording medium, storage medium can comprise: flash disk, read-only memory (Read-Only Memory, ROM), random access device (Random Access Memory, RAM), disk or CD etc.
The live method for recording and the live transcripter that above the embodiment of the present invention are provided are described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (12)
1. a live method for recording, is characterized in that, comprising:
Live transcripter is recorded the first video segment of the first live source broadcasting and the second video segment that the second live source is play in Preset Time simultaneously, and wherein, described the first video segment is identical with described the second video segment;
Described the first video segment of recording and described the second video segment are stored to shared drive by described live transcripter;
Described live transcripter from storage described the first video segment and described the second video segment choose a video segment as target video fragment;
Described target video fragment is write disk by described live transcripter.
2. the method for claim 1, is characterized in that, described live transcripter is chosen a video segment and comprised as target video fragment from described first video segment of storage and described the second video segment:
Described live transcripter judges whether described first video segment of storage is recorded successfully;
If described first video segment of storage is recorded successfully, described live transcripter is using described first video segment of storage as target video fragment.
3. method as claimed in claim 2, is characterized in that, described method also comprises:
If described first video segment of storage is not recorded successfully, whether described live transcripter is recorded described the second video segment that judges storage successfully;
If described second video segment of storage is recorded successfully, described live transcripter is using described second video segment of storage as target video fragment.
4. method as claimed in claim 2, is characterized in that, described live transcripter judges whether described first video segment of storage is recorded successfully and comprised:
The code stream of described live transcripter when recording described the first video segment is multiplied by described Preset Time, obtains the theoretical quantity of the frame of described the first video segment of recording in described Preset Time;
Described live transcripter judges that whether the actual quantity of frame of described the first video segment of storage is consistent with the theoretical quantity of the frame of described the first video segment of recording in described Preset Time;
If the actual quantity of the frame of described first video segment of storage is consistent with the theoretical quantity of the frame of described the first video segment of recording in described Preset Time, the content identification of described the first video segment that judges storage is met video encoding standard by whether described live transcripter, if the content identification of described first video segment of storage meets video encoding standard, show that described first video segment of storage is recorded successfully.
5. method as claimed in claim 3, is characterized in that, described live transcripter judges whether described second video segment of storage is recorded successfully and comprised:
The code stream of described live transcripter when recording described the second video segment is multiplied by described Preset Time, obtain the theoretical quantity of the frame of described the second video segment of recording in described Preset Time, described in code stream while recording described the first video segment with described in code stream while recording described the second video segment identical;
Described live transcripter judges that whether the actual quantity of frame of described the second video segment of storage is consistent with the theoretical quantity of the frame of described the second video segment of recording in described Preset Time;
If the actual quantity of the frame of described second video segment of storage is consistent with the theoretical quantity of the frame of described the second video segment of recording in described Preset Time, the content identification of described the second video segment that judges storage is met video encoding standard by whether described live transcripter, if the content identification of described second video segment of storage meets video encoding standard, show that described second video segment of storage is recorded successfully.
6. the method as described in claim 1-5 any one, is characterized in that, after described target video fragment is write disk by described live transcripter, described method also comprises:
Described live transcripter is removed described the first video segment and described second video segment of described shared drive storage.
7. a live transcripter, is characterized in that, comprising:
Internal memory transcripter, for record the first video segment of the first live source broadcasting and the second video segment that the second live source is play in Preset Time simultaneously, wherein, described the first video segment is identical with described the second video segment;
Shared drive, described the first video segment and described the second video segment recorded for storing described internal memory transcripter;
Chooser, chooses a video segment as target video fragment for described the first video segment from described shared drive storage and described the second video segment;
Write device, writes disk for the described target video fragment that described Chooser is chosen.
8. live transcripter as claimed in claim 7, is characterized in that, described Chooser comprises:
Whether the first judge module, record successfully for described the first video segment that judges described shared drive storage;
Determination module, for when the judged result of described the first judge module is when being, using described first video segment of described shared drive storage as target video fragment.
9. live transcripter as claimed in claim 8, is characterized in that, described Chooser also comprises:
The second judge module, when being no when the judged result of described the first judge module, judges whether described second video segment of described shared drive storage is recorded successfully;
Described determination module, also for when the judged result of described the second judge module is when being, using described second video segment of described shared drive storage as target video fragment.
10. live transcripter as claimed in claim 8, is characterized in that, described the first judge module comprises:
First obtains unit, is multiplied by described Preset Time for the code stream when recording described the first video segment, obtains the theoretical quantity of the frame of described the first video segment of recording in described Preset Time;
The first judging unit, whether consistent for judging that the actual quantity and described first of frame of described the first video segment of described shared drive storage obtains the theoretical quantity of the frame of described the first video segment of recording in the described Preset Time that unit obtains;
The second judging unit, for when the judged result of described the first judging unit is when being, whether the content identification that judges described first video segment of described shared drive storage meets video encoding standard, when the judged result of described the second judging unit is when being, show that described first video segment of described shared drive storage is recorded successfully.
11. live transcripters as claimed in claim 9, is characterized in that, described the second judge module comprises:
Second obtains unit, be multiplied by described Preset Time for the code stream when recording described the second video segment, obtain the theoretical quantity of the frame of described the second video segment of recording in described Preset Time, described in code stream while recording described the first video segment with described in code stream while recording described the second video segment identical;
The 3rd judging unit, whether consistent for judging that the actual quantity and described second of frame of described the second video segment of described shared drive storage obtains the theoretical quantity of the frame of described the second video segment of recording in the described Preset Time that unit obtains;
The 4th judging unit, for when the judged result of described the 3rd judging unit is when being, whether the content identification that judges described second video segment of described shared drive storage meets video encoding standard, when the judged result of described the 4th judging unit is when being, show that described second video segment of described shared drive storage is recorded successfully.
12. live transcripters as described in claim 7-11 any one, is characterized in that, described live transcripter also comprises:
Remover, after writing disk, removes described the first video segment and described second video segment of described shared drive storage for the described target video fragment of described Chooser being chosen at said write device.
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