CN107005725A - Method for reappearing Media Stream - Google Patents
Method for reappearing Media Stream Download PDFInfo
- Publication number
- CN107005725A CN107005725A CN201580066446.7A CN201580066446A CN107005725A CN 107005725 A CN107005725 A CN 107005725A CN 201580066446 A CN201580066446 A CN 201580066446A CN 107005725 A CN107005725 A CN 107005725A
- Authority
- CN
- China
- Prior art keywords
- buffer
- pitch
- media stream
- filling
- stream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000000872 buffer Substances 0.000 claims abstract description 60
- 230000003139 buffering effect Effects 0.000 claims abstract description 26
- 230000008859 change Effects 0.000 claims description 8
- 238000005429 filling process Methods 0.000 claims description 2
- 230000033458 reproduction Effects 0.000 description 17
- 230000005540 biological transmission Effects 0.000 description 10
- 230000002349 favourable effect Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000007480 spreading Effects 0.000 description 4
- 238000003892 spreading Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 101100009524 Anas platyrhynchos HSD17B12 gene Proteins 0.000 description 1
- 238000012952 Resampling Methods 0.000 description 1
- 101100256975 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SIP2 gene Proteins 0.000 description 1
- 101100203850 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SPT2 gene Proteins 0.000 description 1
- 101100291461 Schizosaccharomyces pombe (strain 972 / ATCC 24843) spm2 gene Proteins 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000012160 loading buffer Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/23406—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving management of server-side video buffer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
- H04N21/2401—Monitoring of the client buffer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/41422—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance located in transportation means, e.g. personal vehicle
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
- H04N21/4392—Processing of audio elementary streams involving audio buffer management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/44004—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video buffer management, e.g. video decoder buffer or video display buffer
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
Abstract
The present invention relates to a kind of method for being used to reappear Media Stream, methods described has flexible transfer rate, and buffer is used as intermediate store, it is characterized in that, using the buffer with variable memory size, so that when starting for reappearing the methods described of Media Stream, before the Media Stream is reappeared, minimal buffering is filled, wherein starting the reproduction after the filling of the minimal buffering is reached.
Description
Technical field
The present invention relates to a kind of method of preamble according to claim 1.
Background technology
For reappearing for example with DTV, digital broadcasters, even also the method for the Media Stream relevant with internet is
It is known.IP radios with Internet connection are known.
Although DTV and digital broadcasters are using the transmission rate limited, but transmission rate is using internet
When be variable.When this is especially for mobile phone mobile link or in vehicle.
On the one hand people use depending on possible transmission speed and initially set, flexible transfer rate or bit
Rate, on the other hand uses the buffer (English as intermediate store：Buffer), so as to postpone so-called stream in short time.
Thus prevent packet from not reaching when mobile communication is connected, or must ask again.For example between after loading buffer not
Realize disconnectedly and listen song.Therefore, the buffer ensures not interrupting the reproduction in the time of the restriction depending on buffer sizes.
But because insecure quality of connection needs several seconds, very big buffer in vehicle.It is known that
Estimate at least 5 seconds by standard for example in Tuneln in IP radios.But as a result, in calling IP sender with broadcasting
Pass through about 8-12 seconds between putting.But if being unsatisfied with the program and selecting next sender, then must resume waiting for 8-
12 seconds.Therefore, the website of " thoroughly scanning " for example in frequency modulation broadcasting is impossible, and substantially infringement and IP radios
Exchange and the receiving to IP radios.
In order to realize that some are remedied, it is possible to reduce buffer, quickly to hear broadcast transmission person.But in being due to vehicle
Insecure network connection to reappear interrupts very fast, and this is equally undesirable.The interruption be perceived as shut down or
Music or voice interruption and cause maximum interference.
A kind of method for being used to create Streaming Media and one kind are used for transport stream as known to the A1 of DE 10 2,006 016 549
The method of media.Application such as the Internet radio can be realized by the video flowing of internet.In gradual stream, in order to
Transmitting data needs common http-server.Need to buffer received data for the player of reproduction, and when it is slow
Rush device to be filled when the percentage of determination, automatically begin to the reproduction.
The content of the invention
The task of the present invention is, improves the method for being previously mentioned type so that on the one hand avoid in switching IP radios
Sender when it is too long of wait, but on the other hand again eliminate reappear interrupt risk.
The task is solved by the method with the feature illustrated in claim 1.
The present invention realizes that the stream postponed less in insecure network reappears.
The present invention solves high latency and the problem of music is interrupted by simple mode.According to few delay of the present invention
Stream reappear and be particularly suitable for use in insecure network, and the mobile subscriber for contributing to quantity to be skyrocketed through, such as smart mobile phone
User, vehicle user etc..
The present invention can be close to without delay or lingeringly next in UMTS or LTE realization reproductions less than 1 second
Sender, while maintaining the buffer for connection interference.
It is an advantage of the invention that：
First, it is switched fast between sender, such as in frequency modulation broadcasting,
Second, for variable, definable the buffer for ensuring to reappear in connection interference,
3rd, the variable method for fill buffer is formed, thus, it is possible to need slightly to adjust according to user
Mass loss, or mass loss be not almost perceived,
4th, for the applicability of any stream, the especially video and/or audio (such as IP) with backward channel,
Wherein easily realized in the applicability of server end (sender) and client (recipient), and
5th, on the receive side using when, it is not necessary to change existing server.
The present invention be allowed in insecure network by automatic adaptation cushion with variable reproduction speed less lingeringly
Reappear the method for stream.
The present invention is based on following thought, i.e., relatively large buffering is not filled with when method starts, when this causes the wait of length
Between just reappear, but begin to reappear after the less minimal buffering of filling is reached, but this is slower than true output, thus by
Gradually build the Target buffer time.
The present invention is based on following thought, even if with the buffer with variable memory size, so that for reappearing
When the method for Media Stream starts, minimal buffering is filled before Media Stream is reappeared, wherein just being opened after filling minimal buffering is reached
Starting weight shows.
Minimal buffering is limited in the following manner, i.e., be embodied as the memory size of minimal buffering so that memory exists
Become full in less than 1 second.That is, the weight of audio signal is carried out now less than in 1 second.
The minimal buffering can be virtual software buffering.Alternate embodiments can be physical storage areas.
Other favourable technical schemes of the present invention are represented in the dependent claims.
Provided in the favourable expansion scheme of the driver according to the present invention, buffer is more slowly more defeated than real-playback
Go out, wherein change in pitch is compensated by carrying out or performing pitch compensation, to adjust the pitch of real audio reproduction.
Because simulation change in pitch can be caused or can cause " reproduction of more bass " by more slowly playing flow data, phase must be passed through
The pitch compensation method answered by commercially available algorithm to compensate pitch again poor so that pitch is suitable
In original value.The quality and frequency of resampling are determined by sound quality or its loss and are substantially dependent upon operational performance.
Pitch regulation is for example found in guitar effect device or DJ equipments and can easily applied herein.
A kind of linear buffering strategy is described in another favourable technical scheme of the present invention.Reaching minimal buffering
Afterwards, with the time linearly fill buffer and improve until full buffer sizes, wherein at least can temporarily reduce pitch
Change or extensibility.It can realize and easily realize single linear slope.Different, preferably two kinds slopes are preferably used.
Linear buffer strategy with intermittent extension is also advantageous.
The especially advantageous expansion scheme of the present invention is characterised by, it is proposed that a kind of buffering plan with adaptive strain stretch
Slightly.Its increment substantially exponentially mode reduces, so that the increment is intended to zero at the end of filling process.
Brief description of the drawings
Embodiment is elaborated with reference to accompanying drawing, wherein same illustrate other favourable expansion schemes and advantage of the invention.Its
In：
Fig. 1 is schematically shown spreads transmission method according to known in the art,
Fig. 2 schematically shows the schematic diagram for spreading transmission method according to the present invention,
Fig. 3 shows the first variations for spreading transmission method according to the present invention,
Fig. 4 shows the second variations for spreading transmission method according to the present invention, and
Fig. 5 shows the 3rd variations for spreading transmission method according to the present invention.
Embodiment
Fig. 1 shows the schematic diagram that the IP streams converted with website reappear, and website conversion has according to prior art touches
Send out time point and recurring temporal point.
S1 and S2 represent first-class S1 and second S2, and wherein NSL represents the input or order E1 or use in user
The network and system latency time (delay) existed after the request of family.Tx and Rx represent sender and recipients.Line SSt represents to send
Stream, t1 represents the buffer time of 5 to 10 seconds.Set sender can not be heard within the time.User has to wait for.Accompanying drawing
Mark P represents to reappear or heard that reference NP represents not reappear.Audio reproduction is carried out after t1, it is by SPM1
(Start Playing Music, commence play out music) is represented.Hereafter, user hears sound at such as 3 seconds or during t2
It is happy.If user does not like the music, it is searched for again through order E2 operation senders, so that after SSt or NSL
The stand-by period or buffer time again of 5 to 10 seconds, listened again in time t3 or in SPM2 (commencing play out music)
To another sender.
Therefore, Fig. 1 is shown in IP auto radios because long stand-by period t1, t2 do not obtain the fortune of satisfaction
OK.
It is due in vehicle to hear broadcast transmission person more quickly although buffering or t1 and t2 can be reduced
In insecure network connection and rapidly interrupt reproduction, this is equally interfered.
Fig. 2 shows the schematic diagram similar to Fig. 1, but has the application of the method according to the invention.Can be
Sender is heard after the time t1 of about 0.4 second.Reproduction or buffering with the automatic adaptation cushion by stretching are set herein
Strategy.
As shown in Fig. 2 being realized by the method according to the invention under identical use condition on until media reappear
Time delay improved time response.
Provided in the method according to Fig. 2, be not the filling that buffer is built when starting to reappear in the receiver, but
According to present invention provide that starting to reappear after minimal buffering is reached.Reproduction output is slower than actual, so as to gradually build up target
Buffer time.Change in pitch is compensated by pitch compensation method, so that pitch is equivalent to original value.
Fig. 3 shows the first variations of the method according to Fig. 2.It follows linear buffering strategy.Fig. 2 is schematically
Show the fill level in each stage buffer.
Represent herein：
Bmax：Maximum cushioning
Bmin：Minimal buffering
tL：System latency time (t delay)
tP：Buffer is pre-charged with the time (t buffers are pre-filled)
tF：Buffer refilling time (filling of t buffers)
BF：Full buffer (buffer full)
UR：The stream 1 of user's request
SW：Slow down and start to reappear
E1：First event starts to be pre-charged with buffer about 0.3 second with maximum speed, wherein without sound
Reappear.
E2：Second event is reappeared, fill buffer with the speed of reduction, until it is expired.
E3：3rd event or buffer full, start to reappear with normal speed.
User is asked to flow to server, and the stream is prepared after certain stand-by period tL, and waiting time is due to net
Network (being for example 100ms in case of umts) and system are formed.Fill buffer (referring to the E1) since the preparation, certainly only
Extremely few time, it is roughly equivalent to twice of stand-by period (about 300ms in case of umts) to three times.At this
Between after, with the output speed of reduction start reappear.Buffer is gradually filled to its desired value, (is joined preferably after 5 seconds
See E3).As long as buffer is filled, then the stream is reappeared with raw velocity.
The computational methods of the rate of deceleration (extensibility) are as follows：
Extensibility=(tMaximum cushioning-tMinimal buffering)/tBuffer is filled
That is, if buffer to be building up to the desired value of 5 seconds with the initial buffer of 0.3 second in 47 seconds, its
Extensibility equivalent to 10%.
Time for fill buffer is obtained by following formula：
tBuffer is filled=(tMaximum cushioning–tMinimal buffering)/extensibility
If reducing extensibility, the reproduction is further maintained original value, be then increased up and fill up buffer
Time, and therefore also increase the danger shut down in insecure network.Therefore, the parameter always represents that sound is deteriorated with stopping
The compromise of machine risk.In addition, being hard from filling stage (E2 to E3) to the transitional representation in the stage (since E3) of normal reproduction
Transition, should be especially perceptible in music as hard as crossing.Therefore meaningful using following methods, it not only causes this to delay
Rush device rapidly but be filled with escaping detection, and more mildly form the transition to raw velocity.
Therefore, the second variations are effective, wherein following the linear buffer strategy with intermittent extension.
Fig. 4 essentially show foregoing method, but with extension, wherein using media interval (in video
It is no sound in audio for black picture), to extend media interval, and it is slow with maximal rate filling within the time
Rush device.
It is expressed as herein：
QSD：Detection stream (the Jing Yin point in the stream detected)
QSE：Stretching stream (the Jing Yin stream in the stream extended)
SPS：Slow down reproduction (slow down and commence play out)
tq：Quiescent time (tquite)
tqe：Stretch (tqe)
E1：First event or with maximum speed about 0.3 second, start to be pre-charged with buffer voiceless sound.
E2：Second event is reappeared with the speed of reduction
E3：3rd event or resting stage, without sound, with maximum speed fill buffer.
E4：4th event is reappeared, fill buffer with the speed of reduction, until it is expired.
E5：First event or buffer full, start to reappear with normal speed.
Until E3, the process is all as depicted in fig. 3.But interval (such as without sound) is recognized in the position and same
Sample, which reappears, to be stopped.The interval shows as the several times of original interval for a user, but is no more than maximum (such as 3
Second).It therefore, it can further fill up buffer in real time, and user will not substantially be aware of this point, or user does not have completely
Have and realize.
The another variant scheme of this method follows the buffering strategy with adaptive strain stretch.
Fig. 5 shows another extension, has peak when wherein this is stretching in beginning and in the process that buffer is filled
It is lasting to reduce.In the transition to primary flow, the difference of reproduction speed is so small, so that user does not realize.
The E1 to E3 that E1 to E3 in Fig. 5 corresponds in Fig. 3.
That is, Fig. 5 shows a kind of buffering strategy with adaptive strain stretch.In of short duration linear buffer, (E1 is extremely
E2 after), since E2 reappeared with maximum tension.But the stretching reduces always, thus to primary flow (E3) transition not
There is the noticeable speed difference arrived again.
Foregoing method can be used alone or can also be combined with each other.
The above method can be combined with wireless IP streams (video and audio), especially by UMTS and LTE, with can be described as
The stream of PBS is combined.What is cherished a special interest herein is audio stream, because IP radios wide-scale distribution and having for a long time
There is potential to replace frequency modulation broadcasting.Popular IP radio services APP such as Tuneln for example has in application shop to be exceeded
50000000 download.The APP is provided by most notable vehicular manufacturer simultaneously.IP radio senders (are for example equally based on
Shoutcast all suppliers of front end) can be the potential user of the technology.Therefore in addition to smart mobile phone APP its
It can be proprietary solution in vehicle, for example, be built directly in head unit (Head Unit).
IP radios for wireless application are significantly improved based on the realization of already present technology by described method
Experience, its mode is postponed by such as being reduced when sender switches in peer-level when current FM is received, but it is protected
Stay the advantage for being related to digital broadcasting quality.This is especially probably the key module for breaking through IP radios in vehicle.
Reference numerals list
Buffer full BF
The events of E1 first
E2 second events
The events of E3 the 3rd
NP does not reappear
NSL networks and system latency time
P reappears or listened
QSD detection streams
QSE stretching streams
S1 is first-class
S2 seconds
SPM1 audio reproductions
SPS slows down reproduction
SSt sends stream
SW, which slows down, to be started to reappear
UR user's request streams
Claims (10)
1. a kind of method for being used to reappear Media Stream, methods described has flexible transfer rate, and uses buffer in
Between memory, it is characterised in that using variable memory size the buffer so that in the institute for reappearing Media Stream
When the method for stating starts, before the Media Stream is reappeared, fill minimal buffering, wherein reach the minimal buffering filling it
After start the reproduction.
2. according to the method described in claim 1, it is characterised in that the Media Stream is audio medium stream.
3. method according to claim 1 or 2, it is characterised in that the buffer is more slowly exported than real-playback, its
In change in pitch is compensated by pitch compensation, with match realAudio reproduction pitch.
4. method according to claim 3, it is characterised in that used in internet radio.
5. method according to claim 4, it is characterised in that the radio is radio set for vehicle.
6. according to any method of the preceding claims, it is characterised in that after the minimal buffering is reached, with when
Between it is linear or non-linearly fill the buffer until fill up the buffer, wherein at least temporarily reduces change in pitch
Or extensibility.
7. method according to claim 6, it is characterised in that after the minimal buffering is reached, with smaller than starting
Slope, which is linearly filled out, rushes the buffer until filling up the buffer, wherein after full buffer sizes are reached, without
Stretching or change in pitch.
8. the method according to claim 6 or 7, it is characterised in that linear increment is multiple at least between two slopes
Switching.
9. method according to any one of claim 1 to 6, it is characterised in that the increment substantially exponentially reduces,
So as to which the increment is intended to zero at the end of filling process.
10. a kind of vehicle network radio with buffer, the buffer is provided having for being wanted according to foregoing right
The device of method filling any one of asking.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014225080.3 | 2014-12-08 | ||
| DE102014225080.3A DE102014225080A1 (en) | 2014-12-08 | 2014-12-08 | Process for playing a media stream |
| PCT/EP2015/073336 WO2016091423A1 (en) | 2014-12-08 | 2015-10-09 | Method for playing back a media stream |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107005725A true CN107005725A (en) | 2017-08-01 |
Family
ID=54293233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580066446.7A Pending CN107005725A (en) | 2014-12-08 | 2015-10-09 | Method for reappearing Media Stream |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3231169A1 (en) |
| CN (1) | CN107005725A (en) |
| DE (1) | DE102014225080A1 (en) |
| WO (1) | WO2016091423A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101427539A (en) * | 2006-05-03 | 2009-05-06 | 索尼爱立信移动通讯股份有限公司 | Adaptive streaming buffering |
| CN101558648A (en) * | 2006-11-07 | 2009-10-14 | 索尼爱立信移动通讯股份有限公司 | Adaptive insertion of content in streaming media |
| CN101583025A (en) * | 2009-06-11 | 2009-11-18 | 中兴通讯股份有限公司 | Streaming media playing method and device |
| DE102010011098A1 (en) * | 2010-03-11 | 2011-11-17 | Daimler Ag | Audio and video data playback device installed in motor car, has buffer unit in which playback velocity of audio and video is reduced in relation to normal velocity, until preset quantity of audio and video is stored in buffer unit |
| CN102271280A (en) * | 2011-07-20 | 2011-12-07 | 宝利微电子系统控股公司 | Method and apparatus for variable speed playing of digital audio and video |
| CN102577269A (en) * | 2009-07-02 | 2012-07-11 | 捷讯研究有限公司 | Quality of service parameter relaxation for non-conversational voice calls over a packet-switched network |
| WO2014032913A1 (en) * | 2012-08-29 | 2014-03-06 | Continental Automotive Gmbh | Playback of media data at reduced speed |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006016549A1 (en) | 2006-04-07 | 2007-10-11 | Karu, Jürgen | Streaming media providing method for e.g. Internet, involves coding compressed digital video source material into stream-like video data, and storing video data as streaming dataset for transmission with original television image resolution |
-
2014
- 2014-12-08 DE DE102014225080.3A patent/DE102014225080A1/en not_active Withdrawn
-
2015
- 2015-10-09 WO PCT/EP2015/073336 patent/WO2016091423A1/en active Application Filing
- 2015-10-09 CN CN201580066446.7A patent/CN107005725A/en active Pending
- 2015-10-09 EP EP15778918.1A patent/EP3231169A1/en not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101427539A (en) * | 2006-05-03 | 2009-05-06 | 索尼爱立信移动通讯股份有限公司 | Adaptive streaming buffering |
| CN101558648A (en) * | 2006-11-07 | 2009-10-14 | 索尼爱立信移动通讯股份有限公司 | Adaptive insertion of content in streaming media |
| CN101583025A (en) * | 2009-06-11 | 2009-11-18 | 中兴通讯股份有限公司 | Streaming media playing method and device |
| CN102577269A (en) * | 2009-07-02 | 2012-07-11 | 捷讯研究有限公司 | Quality of service parameter relaxation for non-conversational voice calls over a packet-switched network |
| DE102010011098A1 (en) * | 2010-03-11 | 2011-11-17 | Daimler Ag | Audio and video data playback device installed in motor car, has buffer unit in which playback velocity of audio and video is reduced in relation to normal velocity, until preset quantity of audio and video is stored in buffer unit |
| CN102271280A (en) * | 2011-07-20 | 2011-12-07 | 宝利微电子系统控股公司 | Method and apparatus for variable speed playing of digital audio and video |
| WO2014032913A1 (en) * | 2012-08-29 | 2014-03-06 | Continental Automotive Gmbh | Playback of media data at reduced speed |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016091423A1 (en) | 2016-06-16 |
| DE102014225080A1 (en) | 2016-06-09 |
| EP3231169A1 (en) | 2017-10-18 |
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Application publication date: 20170801 |