CN101783935B - Method for encapsulating scalable video coding bitstreams - Google Patents
Method for encapsulating scalable video coding bitstreams Download PDFInfo
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Abstract
The invention relates to a standard method for encapsulating scalable video coding (SVC) bitstreams, which comprises the following steps: firstly, acquiring SVC bitstreams, wherein the bitstreams has a plurality of frames, and each frame is provided with a basic layer and a plurality of enhancement layers; secondly, analyzing the complexity of the frames according to the characteristics of bitstream parameters in the SVC bitstreams, and selectively encapsulating the basic layer of the frames into a basic layer packet according to the complexity of the frames; and finally, encapsulating the remaining SVC bitstreams into a plurality of enhancement type packets according to an encapsulation mechanism of the basic layer grouping.
Description
Technical field
The present invention relates to a kind of adjustable video coding standard (Scalable Video Coding, bit stream method for packing SVC).
Background technology
In general, in the technology of conventional video crossfire (Video Streaming), the packaged type of video bit stream (Video Bitstream) grouping all is that (Group of Picture GOP) encapsulates for the notion of base unit with picture group.But above-mentioned packaged type is not good enough for the adaptability of network environment, and can be subject to the coding specification of traditional images yet.That is to say, in case revise above-mentioned packaged type, will cause picture format not to be inconsistent or image sequence not right, therefore make decoder receive after the above-mentioned grouping and can't decode correct image that the adaptability for network environment has problem.
The Network Transmission environment is nothing more than two kinds at present: and host and guest's framework (Client-Server) and P-2-P technology (Pear to Pear, P2P).For host and guest's framework, its framework has the problem of allocated bandwidth, that is when the user is too much, will cause network congestion and causes the disconnected news of video, makes image to play on continuity ground.So, watch image for the user, can bringing inconvenience property.
In addition, though P-2-P technology can solve the network bandwidth allocation problem, also, therefore, when Video Decoder receives the video bits stream packets, have the problem that data wait mutually because its video bits stream packets source is mixed and disorderly and order not.Thus, P-2-P technology can be difficult to the control of the time of doing on video streaming, changes and the function that retreats such as video playback is fast.Simultaneously along with future heterogeneous (Heterogeneous) network rise gradually and more diversification of video receiving apparatus, the video streaming of single form possibly can't adapt to this changeable video network environment.
Summary of the invention
The present invention proposes a kind of adjustable video coding standard, and (Scalable Video Coding, bit stream method for packing SVC) comprises the following steps.At first, obtain the SVC bit stream, this SVC bit stream has a plurality of frames, and each frame has basic layer and a plurality of enhancement layers.Then, according to the feature of the bit stream parameter in the SVC bit stream, the complexity of analysis frame.Afterwards, according to the complexity of frame, selectivity is packaged into basic layer grouping with the basic layer of above-mentioned frame.Then, according to basic layer packet encapsulation mechanism, all the other remaining SVC bit streams are packaged into a plurality of enhancement mode groupings again.
The present invention proposes a kind of bit stream method for packing of adjustable video coding standard in addition, comprises the following steps.At first, obtain the SVC bit stream, wherein this SVC bit stream has a plurality of frames, and each frame has basic layer and a plurality of enhancement layers.According to the feature of the bit stream parameter of SVC bit stream, the complexity of analysis frame.According to the complexity of frame, the basic layer of being somebody's turn to do of all frames was packaged into basic layer grouping again.Then, according to the second bit stream parameter and the feature of the 3rd bit stream parameter in this basic layer packet encapsulation mechanism and the bit stream, will be packaged at least one second enhancement mode grouping corresponding to the enhancement layer of the frame of basic layer grouping and divide into groups with at least one the 3rd enhancement mode.Three kinds of bit stream parameters in this specification, be respectively in the SVC bit stream motion vector (Motion Vector, MV), quantization parameter (QuantificationParameter, QP) and the block size (Block Size, BS).
The present invention is by the feature of bit stream parameter in the SVC bit stream, and selectivity is packaged into basic layer grouping (the basic layer that also is about to all frames is packaged into basic layer grouping or the basic layer of frame that will part is packaged into basic layer grouping) with the basic layer of frame.Thus, under limited bandwidth, can increase the fluency (that is can not cause the disconnected news of video) of video playback because of network congestion.In addition, will not be packaged into the basic layer of basic layer of frame that divides into groups and the enhancement layer in the frame, be packaged at least one enhancement mode grouping respectively again and divide into groups,, can make picture reach preferred picture quality so that having under the unnecessary bandwidth with second enhancement mode.Also because therefore video streaming encapsulation more careful in the face of more polynary network environment and video receiving apparatus, will produce more powerful adaptive faculty.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Fig. 1 illustrates the schematic diagram that has multi-layer framework in the bit stream for the embodiment of the invention.
Fig. 2 illustrates and is the coding of the frame in traditional SVC bit stream schematic diagram.
Fig. 3 illustrates the flow chart into the bit stream method for packing of the adjustable video coding standard of the embodiment of the invention.
Fig. 4 illustrates the flow chart into the bit stream method for packing of the adjustable video coding standard of another embodiment of the present invention.
Fig. 5 A illustrates the schematic diagram into the bit stream encapsulated result of the adjustable video coding standard of first embodiment of the invention.
Fig. 5 B illustrates the schematic diagram into the bit stream encapsulated result of the adjustable video coding standard of second embodiment of the invention.
Fig. 5 C illustrates the schematic diagram into the bit stream encapsulated result of the adjustable video coding standard of third embodiment of the invention.
Fig. 5 D illustrates the schematic diagram into the bit stream encapsulated result of the adjustable video coding standard of fourth embodiment of the invention.
Fig. 5 E illustrates the schematic diagram into the bit stream encapsulated result of the adjustable video coding standard of fifth embodiment of the invention.
Fig. 6 illustrates the flow chart into the bit stream method for packing of the adjustable video coding standard of further embodiment of this invention.
Fig. 7 A illustrates the schematic diagram into the bit stream encapsulated result of the adjustable video coding standard of sixth embodiment of the invention.
Fig. 7 B illustrates the schematic diagram into the bit stream encapsulated result of the adjustable video coding standard of seventh embodiment of the invention.
Fig. 7 C illustrates the schematic diagram into the bit stream encapsulated result of the adjustable video coding standard of eighth embodiment of the invention.
Fig. 7 D illustrates the schematic diagram into the bit stream encapsulated result of the adjustable video coding standard of ninth embodiment of the invention.
Description of reference numerals
BL, BL0, BL1, BL2, BL3, BL4, BL5, BL6, BL7, BL8 ...: basic layer
EL1～ELn, EL0_1～EL0_6, EL1_1～EL1_6, EL2_1～EL2_6, EL3_1～EL3_6, EL4_1～EL4_6, EL5_1～EL5_6, EL6_1～EL6_6, EL7_1～EL7_6, EL8_1～EL8_6 ...: enhancement layer
BP: basic layer grouping
EP1_1～EP1_3: enhancement mode grouping
EP2_1～EP2_2: second enhancement mode grouping
EP3_1～EP3_3: the 3rd enhancement mode grouping
EP4_1: the 4th enhancement mode grouping
EP5_1～EP5_3: the 5th enhancement mode grouping
EP6_1: the 6th enhancement mode grouping
EP7_1～EP7_3: the 7th enhancement mode grouping
S301～S305: each step of bit stream method for packing of the adjustable video coding standard of the embodiment of the invention
S401～S409: each step of bit stream method for packing of the adjustable video coding standard of another embodiment of the present invention
S601～S613: each step of bit stream method for packing of the adjustable video coding standard of further embodiment of this invention
Embodiment
(Scalable Video Coding, bit stream method for packing SVC) can increase the fluency of video playback thus, cause the problem of the disconnected news of video to avoid network congestion to the invention provides a kind of adjustable video encoding standard.
For adjustable video coding standard (Scalable Video Coding, SVC) bit stream (Bitstream), a plurality of frames (Frame) in the bit stream can comprise the framework of multilayer, for example shown in Figure 1, just each frame can be made up of basic layer (Base layer) BL, first enhancement layer (Enhancement Layer) EL1, the second enhancement layer EL2... n enhancement layer ELn, and n is a positive integer.And, the number of enhancement layer can produce varying number according to the form of video compression, and each layer (can have different resolution or different frame rates or quality (SNR) among basic layer BL and the enhancement layer EL1～ELn), that is to say, can be in each layer with the complexity of different bit stream parameter record frames.
In general, basic layer BL has lowest resolution or minimum frame rate at least, therefore, in the process of video decode, decoder will receive the basic layer BL in the bit stream at least, so that carry out the action of bit stream decoding, allows video pictures be reduced into original state.In addition, when basic layer BL added enhancement layer, bit stream will have higher resolution or higher frame rate.In addition, get over for a long time if basic layer BL adds the number of enhancement layer, then picture quality also can increase thereupon.And, above-mentioned a plurality of frames can form at least one picture group (Group of Picture, GOP).
For convenience of description, present embodiment is to be that the SVC bit stream that 1 picture group encodes is an example with 8 frames, illustrates as Fig. 2.And above-mentioned coding for example uses the image compression format of QCIF (Quarter CommonIntermediate format) and CIF (Common Intermediate format).And the resolution sizes of QCIF is 176*144, and the resolution sizes of CIF is 352*288.
Please refer to Fig. 2, bit stream have frame F0, F1, F2, F3, F4, F5, F6, F7, F8 ....Wherein, BL0, BL1, BL2, BL3, BL4, BL5, BL6, BL7, BL8 ... be respectively frame F0, F1, F2, F3, F4, F5, F6, F7, F8 ... the basic layer-QCIF in resolution (Resolution) aspect.And EL0_1, EL0_2, EL0_3, EL0_4, EL0_5, EL0_6 are respectively the enhancement layer of frame F0, wherein EL0_1, EL0_2 for the enhancement layer that replenishes BL0 quality (Quality or SNR), EL0_3 for the enhancement layer (BL0 resolution can be enhanced to CIF by QCIF) that replenishes BL0 resolution (Resolution), EL0_4, EL0_5, EL0_6 for replenishing the enhancement layer of EL0_3 quality (Quality or SNR).
EL1_1, EL1_2, EL1_3, EL1_4, EL1_5, EL1_6 are respectively the enhancement layer of frame F1, and wherein EL1_1, EL1_2 are the enhancement layer that replenishes EL1_3 quality (Quality or SNR) for enhancement layer, the EL1_3 that replenishes BL1 quality (Quality or SNR) for enhancement layer (BL1 resolution can be enhanced to CIF by QCIF), EL1_4, EL1_5, the EL1_6 that replenishes BL1 resolution (Resolution).
EL2_1, EL2_2, EL2_3, EL2_4, EL2_5, EL2_6 are respectively the enhancement layer of frame F2, and wherein EL2_1, EL2_2 are the enhancement layer that replenishes EL23 quality (Quality or SNR) for enhancement layer, the EL2_3 that replenishes BL2 quality (Quality or SNR) for enhancement layer (BL2 resolution can be enhanced to CIF by QCIF), EL2_4, EL2_5, the EL2_6 that replenishes BL2 resolution (Resolution).
EL3_1, EL3_2, EL3_3, EL3_4, EL3_5, EL3_6 are respectively the enhancement layer of frame F3, and wherein EL3_1, EL3_2 are the enhancement layer that replenishes EL3_3 quality (Quality or SNR) for enhancement layer, the EL3_3 that replenishes BL3 quality (Quality or SNR) for enhancement layer (BL3 resolution can be enhanced to CIF by QCIF), EL3_4, EL3_5, the EL3_6 that replenishes BL3 resolution (Resolution).
EL4_1, EL4_2, EL4_3, EL4_4, EL4_5, EL4_6 are respectively the enhancement layer of frame F4, and wherein EL4_1, EL4_2 are the enhancement layer that replenishes EL4_3 quality (Quality or SNR) for enhancement layer, the EL4_3 that replenishes BL4 quality (Quality or SNR) for enhancement layer (BL4 resolution can be enhanced to CIF by QCIF), EL4_4, EL4_5, the EL4_6 that replenishes BL4 resolution (Resolution).
EL5_1, EL5_2, EL5_3, EL5_4, EL5_5, EL5_6 are respectively the enhancement layer of frame F5, and wherein EL5_1, EL5_2 are the enhancement layer that replenishes EL5_3 quality (Quality or SNR) for enhancement layer, the EL5_3 that replenishes BL5 quality (Quality or SNR) for enhancement layer (BL5 resolution can be enhanced to CIF by QCIF), EL5_4, EL5_5, the EL5_6 that replenishes BL5 resolution (Resolution).
EL6_1, EL6_2, EL6_3, EL6_4, EL6_5, EL6_6 are respectively the enhancement layer of frame F6, and wherein EL6_1, EL6_2 are the enhancement layer that replenishes EL6_3 quality (Quality or SNR) for enhancement layer, the EL6_3 that replenishes BL6 quality (Quality or SNR) for enhancement layer (BL6 resolution can be enhanced to CIF by QCIF), EL6_4, EL6_5, the EL6_6 that replenishes BL6 resolution (Resolution).
EL7_1, EL7_2, EL7_3, EL7_4, EL7_5, EL7_6 are respectively the enhancement layer of frame F7, and wherein EL7_1, EL7_2 are the enhancement layer that replenishes EL7_3 quality (Quality or SNR) for enhancement layer, the EL7_3 that replenishes BL7 quality (Quality or SNR) for enhancement layer (BL7 resolution can be enhanced to CIF by QCIF), EL7_4, EL7_5, the EL7_6 that replenishes BL7 resolution (Resolution).
EL8_1, EL8_2, EL8_3, EL8_4, EL8_5, EL8_6 are respectively the enhancement layer of frame F8, and wherein EL8_1, EL8_2 are the enhancement layer that replenishes EL8_3 quality (Quality or SNR) for enhancement layer, the EL8_3 that replenishes BL8 quality (Quality or SNR) for enhancement layer (BL8 resolution can be enhanced to CIF by QCIF), EL8_4, EL8_5, the EL8_6 that replenishes BL8 resolution (Resolution).
In the present embodiment, the coded system of the frame of bit stream is for example used hierarchy type predict (Hierarchical Prediction Structure), but does not limit its coded system.And, the order after the frame of bit stream is encoded be frame F0, F8, F4, F2, F6, F1, F3, F5, F7 ....In addition, in certain embodiments, if be to be 1 picture group when encoding in the bit stream with 16 frames, then the frame sequential behind the coding be in regular turn F0, F16, F8, F4, F12, F2, F6, F10, F14, F1, F3, F5, F7, F9, F11, F13, F15 ....
Fig. 3 illustrates the flow chart into the bit stream method for packing of the adjustable video coding standard of the embodiment of the invention.Please merge with reference to Fig. 2 and Fig. 3, at first, in step S301, obtain SVC bit stream (as shown in Figure 2), and this SVC bit stream have a plurality of frames, and each frame has basic layer and a plurality of enhancement layers.
Then, in step S303, according to the feature of the bit stream parameter in the SVC bit stream, the complexity of analysis frame.In the present embodiment, above-mentioned bit stream parameter can be motion vector (MotionVector), and motion vector is corresponding to time adjustability (Temporal Scalable).
For instance,, represent that this frame has been taken into account and be the lower frame of degrees of motion (low-frequency image) when encoding if the motion vector in the frame (for example news) of bit stream be hour, that is the rate of motion of frame lower (complexity of frame is comparatively simple).In other words, if the motion vector in the frame (for example rugby picture) of bit stream when being big, represents that this frame has been taken into account and is the higher frame of degrees of motion (high frequency imaging) when coding, that is the rate of motion of frame higher (the complicated Cheng Du of frame is comparatively complicated).
Afterwards, in step S305, according to the complexity of frame, optionally the basic layer with frame is packaged into basic layer grouping.For instance, when the complexity that analyzes frame comparatively simple (that is motion vector is little), with frame F0, F8, F16, F24 ... resolution aspect basic layer-QCIF BL0, BL8, BL16, BL24 ... be packaged into basic layer grouping BP (the basic layer that also is about to partial frame be packaged into basic layer divide into groups BP).On the other hand, if during the complexity that detects frame comparatively complicated (that is motion vector is for big), with frame F0, F8, F4, F2, F6, F1, F3, F5, F7 ... resolution aspect basic layer-QCIF BL0, BL8, BL4, BL2, BL6, BL1, BL3, BL5, BL7 ... be packaged into basic layer grouping BP (the basic layer that also is about to all frames be packaged into basic layer divide into groups BP).
Then, the basic layer grouping BP of above-mentioned two kinds of forms is positioned over network (general networking or heterogeneous network) when going up, the user can be according to the size of the network bandwidth at that time, download the packed part frame basic layer basic layer grouping BP or encapsulate the basic layer grouping BP of the basic layer of all frames, allow decoder resolve, so that watch image.Because basic layer grouping BP comprises the basic layer (the basic layer that for example comprises the frame that can play 200 seconds) of frame, so when the user when watching video pictures (for example playing the 100th second picture) and video pictures changeed (for example playing the 150th second picture) soon or retreat (for example playing the 50th second picture), the problem of disconnected news will can not appear.Thus, present embodiment can increase the fluency that picture (video) is play under limited bandwidth, produces the phenomenon of disconnected news because of the bandwidth deficiency to avoid image frame.
In the above-described embodiments, only describe, but present embodiment is not limited thereto at the basic layer grouping of encapsulation BP.Except encapsulating out basic layer grouping BP, also can be according to other bit stream parameter encapsulation enhancement mode groupings of bit stream, so that increase picture quality.Usually know that in order to make this area have the knowledgeable more understands the bit stream method for packing of the adjustable video coding standard of present embodiment.Below, will lift the enforcement example again and illustrate.
Fig. 4 illustrates the flow chart into the bit stream method for packing of the adjustable video coding standard of the embodiment of the invention.Please merge with reference to Fig. 2 and Fig. 4, and the operation workflow of the step S401 of Fig. 4, S403 and S405 can be with reference to step S301, S303 and the S305 of Fig. 3, so do not repeat them here.
In step S405, when if the complexity of frame is simple (that is motion vector is little), then the basic layer with partial frame is packaged into basic layer grouping BP, and the basic layer of residue frame is packaged at least one enhancement mode grouping, wherein the enhancement mode grouping comprises at least by a key picture (Key Picture) picture data that obtains of estimating.In the present embodiment, key picture is frame F0.
For instance, a basic layer grouping BP comprise frame F0, F8, F16 ... resolution aspect basic layer-QCIF BL0, BL8, BL16 ..., then enhancement mode grouping can be 1, that is enhancement mode grouping EP1_1 can comprise frame F4, F2, F6, F1, F3, F5, F7 ... resolution aspect basic layer-QCIF BL4, BL2, BL6, BL1, BL3, BL5, BL7 ....In certain embodiments, the enhancement mode grouping can be 2, that is enhancement mode grouping EP1_1 can comprise frame F4, F2, F6 ... resolution aspect basic layer-QCIF BL4, BL2, BL6 ..., enhancement mode grouping EP1_2 can comprise frame F1, F3, F5, F7 ... the resolution aspect substantially layer-QCIF BL1, BL3, BL5, BL7 ....Or the enhancement mode grouping can be 3, that is enhancement mode grouping EP1_1 can comprise frame F4 ... the basic layer-QCIF BL4 in resolution aspect ..., enhancement mode grouping EP1_2 can comprise frame F2, F6 ... resolution aspect basic layer-QCIF BL2, BL6 ..., enhancement mode grouping EP1_3 can comprise frame F1, F3, F5, F7 ... the resolution aspect substantially layer-QCIF BL1, BL3, BL5, BL7 ....
What deserves to be mentioned is, if bit stream is to be 1 picture group when encoding with 16 frames, then the frame sequential behind the coding be in regular turn F0, F16, F8, F4, F12, F2, F6, F10, F14, F1, F3, F5, F7, F9, F11, F13, F15 ... (not illustrating).A basic layer grouping BP comprise frame F0, F16, F32 ... resolution aspect basic layer-QCIF BL0, BL16, BL32 ..., then enhancement mode grouping can be 1, that is enhancement mode grouping EP1_1 can comprise frame F8, F4, F12, F2, F6, F10, F14, F1, F3, F5, F7, F9, F11, F13, F15 ... resolution aspect basic layer-QCIF BL8, BL4, BL12, BL2, BL6, BL10, BL14, BL1, BL3, BL5, BL7, BL9, BL11, BL13, BL15 ....
In certain embodiments, the enhancement mode grouping can be 2, that is enhancement mode grouping EP1_1 can comprise frame F8, F4, F12, F2, F6, F10, F14 ... resolution aspect basic layer-QCIF BL8, BL4, BL12, BL2, BL6, BL10, BL14 ..., enhancement mode grouping EP1_2 can comprise frame F1, F3, F5, F7, F9, F11, F13, F15 ... the resolution aspect substantially layer-QCIF BL1, BL3, BL5, BL7, BL9, BL11, BL13, BL15 ....Or, the enhancement mode grouping can be 3, that is enhancement mode grouping EP1_1 can comprise frame F8, F4, F12 ... resolution aspect basic layer-QCIF BL8, BL4, BL12 ..., enhancement mode grouping EP1_2 can comprise frame F2, F6, F10, F14 ... resolution aspect basic layer-QCIF BL2, BL6, BL10, BL14 ..., enhancement mode grouping EP1_3 can comprise frame F1, F3, F5, F7, F9, F11, F13, F15 ... the resolution aspect substantially layer-QCIF BL1, BL3, BL5, BL7, BL9, BL11, BL13, BL15 ....Again or, the enhancement mode grouping can be 4, that is enhancement mode grouping EP1_1 can comprise frame F8, ... the basic layer-QCIF BL8 in resolution aspect, ..., enhancement mode grouping EP1_2 can comprise frame F4, F12, ... the basic layer-QCIF BL4 in resolution aspect, BL12, ..., enhancement mode grouping EP1_3 can comprise frame F2, F6, F10, F14, ... the basic layer-QCIF BL2 in resolution aspect, BL6, BL10, BL14, ..., enhancement mode grouping EP1_4 can comprise frame F1, F3, F5, F7, F9, F11, F13, F15, ... the basic layer-QCIF BL1 in resolution aspect, BL3, BL5, BL7, BL9, BL11, BL13, BL15, ....
Afterwards, in step S407, according to the feature of the second bit stream parameter, will be packaged at least one second enhancement mode grouping corresponding to the enhancement layer of the frame of basic layer grouping, and will be packaged at least one the 3rd enhancement mode grouping corresponding to the enhancement layer of the frame of enhancement mode grouping.In the present embodiment, the second bit stream parameter be quantization parameter (Quantification Parameter, QP) with the block size (Block Size, BS) one of them.Wherein, quantization parameter is corresponding to signal noise ratio adjustability (SNR Scalable), if QP is bigger, expression bit stream bit rate is little, just this section bit stream can be packaged into an enhancement mode grouping when therefore encapsulating, and need not split into a plurality of enhancement mode groupings; Anti-, if QP is bigger, expression bit stream bit rate is big, this section bit stream will be packaged into a plurality of enhancement mode groupings when therefore encapsulating, in order to avoid once just lose too many video content during bandwidth variations.
And the block size if BS is bigger, represents that picture is comparatively dull corresponding to space adjustability (Spatial Scalable), just this section bit stream can be packaged into an enhancement mode grouping when therefore encapsulating, and need not split into a plurality of enhancement mode groupings; Anti-, if BS is less, the expression picture is comparatively careful, this section bit stream will be packaged into a plurality of enhancement mode groupings when therefore encapsulating, in order to avoid once just lose too many video content during bandwidth variations.
The result schematic diagram of the SVC bit stream encapsulation of first embodiment is described with reference to figure 5A for instance.If basic layer grouping BP comprises frame F0, F8, F16, ... the basic layer-QCIF BL0 in resolution aspect, BL8, BL16, ..., enhancement mode grouping EP1_1 comprises frame F4, F2, F6, F1, F3, F5, F7, ... the basic layer-QCIF BL4 in resolution aspect, BL2, BL6, BL1, BL3, BL5, BL7, ... the time, then second enhancement mode grouping EP2_1 comprises frame F0, F8, F16, ... enhancement layer EL0_1, EL0_2, EL0_3, EL0_4, EL0_5, EL0_6, EL8_1, EL8_2, EL8_3, EL8_4, EL8_5, EL8_6, EL16_1, EL16_2, EL16_3, EL16_4, EL16_5, EL16_6, ..., and the 3rd enhancement mode grouping EP3_1 comprises frame F4, F2, F6, F1, F3, F5, F7, ... enhancement layer EL4_1, EL4_2, EL4_3, EL4_4, EL4_5, EL4_6, EL2_1, EL2_2, EL2_3, EL2_4, EL2_5, EL2_6, EL6_1, EL6_2, EL6_3, EL6_4, EL6_5, EL6_6, EL1_1, EL1_2, EL1_3, EL1_4, EL1_5, EL1_6, EL3_1, EL3_2, EL3_3, EL3_4, EL3_5, EL3_6, EL5_1, EL5_2, EL5_3, EL5_4, EL5_5, EL5_6, EL7_1, EL7_2, EL7_3, EL7_4, EL7_5, EL7_6, ....
The result schematic diagram of the SVC bit stream encapsulation of second embodiment is described with reference to figure 5B in addition.If basic layer grouping BP comprises frame F0, F8, F16, ... the basic layer-QCIF BL0 in resolution aspect, BL8, BL16, ..., enhancement mode grouping EP1_1 comprises frame F4, F2, F6, ... the basic layer-QCIF BL4 in resolution aspect, BL2, BL6, ..., enhancement mode grouping EP1_2 comprises frame F1, F3, F5, F7, ... the basic layer-QCIF BL1 in resolution aspect, BL3, BL5, BL7, ... the time, then second enhancement mode grouping EP2_1 comprises frame F0, F8, F16, ... enhancement layer EL0_1, EL0_2, EL0_3, EL0_4, EL0_5, EL0_6, EL8_1, EL8_2, EL8_3, EL8_4, EL8_5, EL8_6, EL16_1, EL16_2, EL16_3, EL16_4, EL16_5, EL16_6, ..., and the 3rd enhancement mode grouping EP3_1 comprises frame F4, F2, F6, ... enhancement layer EL4_1, EL4_2, EL4_3, EL4_4, EL4_5, EL4_6, EL2_1, EL2_2, EL2_3, EL2_4, EL2_5, EL2_6, EL6_1, EL6_2, EL6_3, EL6_4, EL6_5, EL6_6, the 3rd enhancement mode grouping EP3_2 comprises frame F1, F3, F5, F7, ... enhancement layer EL1_1, EL1_2, EL1_3, EL1_4, EL1_5, EL1_6, EL3_1, EL3_2, EL3_3, EL3_4, EL3_5, EL3_6, EL5_1, EL5_2, EL5_3, EL5_4, EL5_5, EL5_6, EL7_1, EL7_2, EL7_3, EL7_4, EL7_5, EL7_6, ....
The result schematic diagram of the SVC bit stream encapsulation of the 3rd embodiment is described with reference to figure 5C in addition.If basic layer grouping BP comprises frame F0, F8, F16, ... the basic layer-QCIF BL0 in resolution aspect, BL8, BL16, ..., enhancement mode grouping EP1_1 comprises frame F4, ... the basic layer-QCIFBL4 in resolution aspect, enhancement mode grouping EP1_2 comprises frame F2, F6, ... the basic layer-QCIF BL2 in resolution aspect, BL6, ..., enhancement mode grouping EP1_3 comprises frame F1, F3, F5, F7, ... the basic layer-QCIF BL1 in resolution aspect, BL3, BL5, BL7, ... the time, then second enhancement mode grouping EP2_1 comprises frame F0, F8, F16, ... enhancement layer EL0_1, EL0_2, EL0_3, EL0_4, EL0_5, EL0_6, EL8_1, EL8_2, EL8_3, EL8_4, EL8_5, EL8_6, EL16_1, EL16_2, EL16_3, EL16_4, EL16_5, EL16_6, ....And the 3rd enhancement mode grouping EP3_1 comprises the enhancement layer EL4_1 of frame F4..., EL4_2, EL4_3, EL4_4, EL4_5, EL4_6, ..., the 3rd enhancement mode grouping EP3_2 comprises frame F2, the enhancement layer EL2_1 of F6, EL2_2, EL2_3, EL2_4, EL2_5, EL2_6, EL6_1, EL6_2, EL6_3, EL6_4, EL6_5, EL6_6, the 3rd enhancement mode grouping EP3_3 comprises frame F1, F3, F5, F7, ... enhancement layer EL1_1, EL1_2, EL1_3, EL1_4, EL1_5, EL1_6, EL3_1, EL3_2, EL3_3, EL3_4, EL3_5, EL3_6, EL5_1, EL5_2, EL5_3, EL5_4, EL5_5, EL5_6, EL7_1, EL7_2, EL7_3, EL7_4, EL7_5, EL7_6, ....
In addition, be that 1 picture group carries out second enhancement mode grouping of bitstream encoded and the packaged type of the 3rd enhancement mode grouping can be that 1 picture group carries out the explanation of bitstream encoded with reference to above-mentioned 16 frames with 16 frames, so do not repeat them here.
Then, above-mentioned basic layer grouping, enhancement mode grouping, the grouping of second enhancement mode and the grouping of the 3rd enhancement mode are positioned on the network (general networking or heterogeneous network), the user just can be according to the size of the network bandwidth at that time, and any basic layer grouping of decision download (that is basic layer basic layer of packed part frame divides into groups or the basic layer that encapsulates the basic layer of all frames divides into groups), so that continuation view and admire video pictures, and can not produce the phenomenon of video breaks.Because basic layer grouping BP only has the frame of lowest resolution or minimum frame rate.Therefore,, then can download enhancement mode grouping, the grouping of second enhancement mode and the grouping of the 3rd enhancement mode, increase the quality that video pictures is play if network also has unnecessary bandwidth.
On the other hand, in step S405, if when the complexity of frame is complicated, then the basic layer with all frames is packaged into basic layer grouping BP.For instance, a basic layer grouping BP can comprise frame F0, F8, F4, F2, F6, F1, F3, F5, F7, F16 ... resolution aspect basic layer-QCIF BL0, BL8, BL4, BL2, BL6, BL1, BL3, BL5, BL7, BL16 ....
Then, in step S409,, then will be packaged at least one second enhancement mode grouping corresponding to the enhancement layer of basic layer of frame that divides into groups according to the feature of the second bit stream parameter (quantization parameter or block size).The result schematic diagram of the SVC bit stream encapsulation of the 4th embodiment is described with reference to figure 5D for instance.Second enhancement mode grouping EP2_1 can be 1, that is second enhancement mode grouping EP2_1 comprises frame F0, F8, F4, F2, F6, F1, F3, F5, F7, F16, ... enhancement layer EL0_1, EL0_2, EL0_3, EL0_4, EL0_5, EL0_6, EL8_1, EL8_2, EL8_3, EL8_4, EL8_5, EL8_6, EL4_1, EL4_2, EL4_3, EL4_4, EL4_5, EL4_6, EL2_1, EL2_2, EL2_3, EL2_4, EL2_5, EL2_6, EL6_1, EL6_2, EL6_3, EL6_4, EL6_5, EL6_6, EL1_1, EL1_2, EL1_3, EL1_4, EL1_5, EL1_6, EL3_1, EL3_2, EL3_3, EL3_4, EL3_5, EL3_6, EL5_1, EL5_2, EL5_3, EL5_4, EL5_5, EL5_6, EL7_1, EL7_2, EL7_3, EL7_4, EL7_5, EL7_6, EL16_1, EL16_2, EL16_3, EL16_4, EL16_5, EL16_6, ....
In certain embodiments, second enhancement mode grouping EP2_1 can be for more than 2 or 2.The result schematic diagram of the SVC bit stream encapsulation of the 5th embodiment is described with reference to figure 5E for instance.When if second enhancement mode grouping EP2_1 is 2, that is second enhancement mode grouping EP2_1 comprise frame F0, F8, F4, F2, F6, F1, F3, F5, F7, F16, ... enhancement layer EL0_1, EL0_2, EL8_1, EL8_2, EL4_1, EL4_2, EL2_1, EL2_2, EL6_1, EL6_2, EL1_1, EL1_2, EL3_1, EL3_2, EL5_1, EL5_2, EL7_1, EL7_2, EL16_1, EL16_2, ..., second enhancement mode grouping EP2_2 comprises frame F0, F8, F4, F2, F6, F1, F3, F5, F7, F16, ... enhancement layer EL0_3, EL0_4, EL0_5, EL0_6, EL8_3, EL8_4, EL8_5, EL8_6, EL4_3, EL4_4, EL4_5, EL4_6, EL2_3, EL2_4, EL2_5, EL2_6, EL6_3, EL6_4, EL6_5, EL6_6, EL1_3, EL1_4, EL1_5, EL1_6, EL3_3, EL3_4, EL3_5, EL3_6, EL5_3, EL5_4, EL5_5, EL5_6, EL7_3, EL7_4, EL7_5, EL7_6, EL16_3, EL16_4, EL16_5, EL16_6, ....
The packaged type of all the other second enhancement mode groupings can be with reference to above stated specification, so do not repeat them here.
Then, above-mentioned basic layer grouping, enhancement mode grouping, the grouping of second enhancement mode and the grouping of the 3rd enhancement mode are positioned on the network, the user just can be according to the size of the network bandwidth at that time, and decision is after receiving basic layer grouping, whether also need to receive enhancement mode grouping, the grouping of second enhancement mode and the grouping of the 3rd enhancement mode, increase the quality that video pictures is play.
Fig. 6 illustrates the flow chart into the bit stream method for packing of the adjustable video coding standard of the embodiment of the invention.Please refer to Fig. 6, please merge with reference to Fig. 2 and Fig. 6, and the operation workflow of the step S601 of Fig. 6, S603 and S605 can be with reference to step S401, S403 and the S405 of Fig. 4, so do not repeat them here.
Then, in step S605, when if the complexity of frame is simple (that is motion vector is little), then the basic layer with partial frame is packaged into basic layer grouping, comprises at least by a key picture and is estimated the picture data that obtains and the basic layer of residue frame is packaged into the wherein enhancement mode grouping of dividing into groups of at least one enhancement mode.In the present embodiment, key picture is frame F0.
For instance, a basic layer grouping BP comprise frame F0, F8, F16 ... resolution aspect basic layer-QCIF BL0, BL8, BL16 ....And enhancement mode grouping can be 1, that is enhancement mode grouping EP1_1 can comprise frame F4, F2, F6, F1, F3, F5, F7 ... resolution aspect basic layer-QCIF BL4, BL2, BL6, BL1, BL3, BL5, BL7 ....In certain embodiments, the enhancement mode grouping can be 2, that is enhancement mode grouping EP1_1 can comprise frame F4, F2, F6 ... resolution aspect basic layer-QCIF BL4, BL2, BL6 ..., enhancement mode grouping EP1_2 can comprise frame F1, F3, F5, F7 ... the resolution aspect substantially layer-QCIF BL1, BL3, BL5, BL7 ...; Or the enhancement mode grouping can be 3, that is enhancement mode grouping EP1_1 can comprise frame F4 ... the basic layer-QCIF BL4 in resolution aspect ..., enhancement mode grouping EP1_2 can comprise frame F2, F6 ... resolution aspect basic layer-QCIF BL2, BL6 ..., enhancement mode grouping EP1_3 can comprise frame F1, F3, F5, F7 ... the resolution aspect substantially layer-QCIF BL1, BL3, BL5, BL7 ....
Afterwards, in step S607, according to the feature of the second bit stream parameter, will be packaged at least one second enhancement mode grouping corresponding to the enhancement layer of the frame of basic layer grouping, and will be packaged at least one the 3rd enhancement mode grouping corresponding to the enhancement layer of the frame of enhancement mode grouping.Then, in step S609, feature according to the 3rd bit stream parameter, to be packaged at least one the 4th enhancement mode grouping corresponding to the enhancement layer of basic layer of frame that divides into groups, to be packaged at least one the 5th enhancement mode grouping corresponding to the enhancement layer of the frame of enhancement mode grouping, according to the second bit stream parameter attribute, will be packaged at least one the 6th enhancement mode grouping again, will be packaged at least one the 7th enhancement mode corresponding to the enhancement layer of the frame of strengthening grouping and divide into groups corresponding to the enhancement layer of basic layer of frame that divides into groups.In the present embodiment, the second bit stream parameter and the 3rd enhancement mode are respectively quantization parameter and block size, and the second bit stream parameter is different separately with the 3rd bit stream parameter.With the second bit stream parameter and the 3rd bit stream parameter is the enhancement mode grouping that forms according to packaged, can be used for increasing the quality of picture.
The result schematic diagram of the SVC bit stream encapsulation of the 6th embodiment is described with reference to figure 7A for instance.If a basic layer grouping BP comprise frame F0, F8, F16 ... resolution aspect basic layer-QCIF BL0, BL8, BL16 ..., enhancement mode grouping EP1_1 comprise frame F4, F2, F6, F1, F3, F5, F7 ... resolution aspect basic layer-QCIF BL4, BL2, BL6, BL1, BL3, BL5, BL7 ... the time, then second enhancement mode divide into groups EP2_1 comprise frame F0, F8, F16 ... enhancement layer EL0_1, EL0_2, EL8_1, EL8_2, EL16_1, EL16_2 ....
The 3rd enhancement mode grouping EP3_1 comprise frame F4, F2, F6, F1, F3, F5, F7 ... enhancement layer EL4_1, EL4_2, EL2_1, EL2_2, EL6_1, EL6_2, EL1_1, EL1_2, EL3_1, EL3_2, EL5_1, EL5_2, EL7_1, EL7_2 ....The 4th enhancement mode grouping EP4_1 comprise frame F0, F8, F16 ... enhancement layer EL0_3, EL8_3, EL16_3 ....
The 5th enhancement mode grouping EP5_1 comprise frame F4, F2, F6, F1, F3, F5, F7 ... enhancement layer EL4_3, EL2_3, EL6_3, EL1_3, EL3_3, EL5_3, EL7_3 ....The 6th enhancement mode grouping EP6_1 comprise frame F0, F8, F16 ... enhancement layer EL0_4, EL0_5, EL0_6, EL8_4, EL8_5, EL8_6, EL16_4, EL16_5, EL16_6 ....
The 7th enhancement mode grouping EP7_1 comprise frame F4, F2, F6, F1, F3, F5, F7 ... enhancement layer EL4_4, EL4_5, EL4_6, EL2_4, EL2_5, EL2_6, EL6_4, EL6_5, EL6_6, EL1_4, EL1_5, EL1_6, EL3_4, EL3_5, EL3_6, EL5_4, EL5_5, EL5_6, EL7_4, EL7_5, EL7_6 ....
The result schematic diagram of the SVC bit stream encapsulation of the 7th embodiment is described with reference to figure 7B in addition.If a basic layer grouping BP comprise frame F0, F8, F16 ... resolution aspect basic layer-QCIF BL0, BL8, BL16 ..., enhancement mode grouping EP1_1 comprise frame F4, F2, F6 ... resolution aspect basic layer-QCIF BL4, BL2, BL6 ..., enhancement mode grouping EP1_2 comprise frame F1, F3, F5, F7 ... basic layer BL1, BL3, BL5, BL7 ... the time, then second enhancement mode grouping EP2_1 comprise frame F0, F8, F16 ... enhancement layer EL0_1, EL0_2, EL8_1, EL8_2, EL16_1, EL16_2 ....The 3rd enhancement mode grouping EP3_1 comprise frame F4, F2, F6 ... enhancement layer EL4_1, EL4_2, EL2_1, EL2_2, EL6_1, EL6_2 ..., the 3rd enhancement mode grouping EP3_2 comprise frame F1, F3, F5, F7 ... enhancement layer EL1_1, EL1_2, EL3_1, EL3_2, EL5_1, EL5_2, EL7_1, EL7_2 ....
The 4th enhancement mode grouping EP4_1 comprise frame F0, F8, F16 ... enhancement layer EL0_3, EL8_3, EL16_3 ....The 5th enhancement mode grouping EP5_1 comprise frame F4, F2, F6 ... enhancement layer EL4_3, EL2_3, EL6_3 ....The 5th enhancement mode grouping EP5_2 comprise frame F1, F3, F5, F7 ... enhancement layer EL1_3, EL3_3, EL5_3, EL7_3 ....
The 6th enhancement mode grouping EP6_1 comprise frame F0, F8, F16 ... enhancement layer EL0_4, EL0_5, EL0_6, EL8_4, EL8_5, EL8_6, EL16_4, EL16_5, EL16_6 ....The 7th enhancement mode grouping EP7_1 comprise frame F4, F2, F6 ... enhancement layer EL4_4, EL4_5, EL4_6, EL2_4, EL2_5, EL2_6, EL6_4, EL6_5, EL6_6 ....The 7th enhancement mode grouping EP7_2 comprise frame F1, F3, F5, F7 ... enhancement layer EL1_4, EL1_5, EL1_6, EL3_4, EL3_5, EL3_6, EL5_4, EL5_5, EL5_6, EL7_4, EL7_5, EL7_6 ....
The result schematic diagram of the SVC bit stream encapsulation of the 8th embodiment then, is described with reference to figure 7C.If basic layer grouping BP comprises frame F0, F8, F16, ... the basic layer-QCIF BL0 in resolution aspect, BL8, BL16, ..., enhancement mode grouping EP1_1 comprises frame F4, ... the basic layer-QCIFBL4 in resolution aspect, ..., enhancement mode grouping EP1_2 comprises frame F2, F6, ... the basic layer-QCIFBL2 in resolution aspect, BL6, ..., enhancement mode grouping EP1_3 comprises frame F1, F3, F5, F7, ... the basic layer-QCIF BL1 in resolution aspect, BL3, BL5, BL7, ... the time, then second enhancement mode grouping EP2_1 comprises frame F0, F8, F16, ... enhancement layer EL0_1, EL0_2, EL8_1, EL8_2, EL16_1, EL16_2, ....
The 3rd enhancement mode grouping EP3_1 comprise frame F4 ... enhancement layer EL4_1, EL4_2 ....The 3rd enhancement mode grouping EP3_2 comprise frame F2, F6 ... enhancement layer EL2_1, EL2_2, EL6_1, EL6_2 ....The 3rd enhancement mode grouping EP3_3 comprise frame F1, F3, F5, F7 ... enhancement layer EL1_1, EL1_2, EL3_1, EL3_2, EL5_1, EL5_2, EL7_1, EL7_2 ....
The 4th enhancement mode grouping EP4_1 comprise frame F0, F8, F16 ... enhancement layer EL0_3, EL8_3, EL16_3 ....
The 5th enhancement mode grouping EP5_1 comprise frame F4 ... enhancement layer EL4_3 ....The 5th enhancement mode grouping EP5_2 comprise frame F2, F6 ... enhancement layer EL2_3, EL6_3 ....The 5th enhancement mode grouping EP5_3 comprise frame F1, F3, F5, F7 ... enhancement layer EL1_3, EL3_3, EL5_3, EL7_3 ....
The 6th enhancement mode grouping EP6_1 comprise frame F0, F8, F16 ... enhancement layer EL0_4, EL0_5, EL0_6, EL8_4, EL8_5, EL8_6, EL16_4, EL16_5, EL16_6 ....
The 7th enhancement mode grouping EP7_1 comprise frame F4 ... enhancement layer EL4_4, EL4_5, EL4_6 ....The 7th enhancement mode grouping EP7_2 comprise frame F2, F6 ... enhancement layer EL2_4, EL2_5, EL2_6, EL6_4, EL6_5, EL6_6 ....The 7th enhancement mode grouping EP7_3 comprise frame F1, F3, F5, F7 ... enhancement layer EL1_4, EL1_5, EL1_6, EL3_4, EL3_5, EL3_6, EL5_4, EL5_5, EL5_6, EL7_4, EL7_5, EL7_6 ....
Then, above-mentioned grouping is positioned on the network,, selects required grouping voluntarily, make the phenomenon that can not produce disconnected news when viewing and admiring video pictures again so that allow the user according to the size of the network bandwidth at that time.
On the other hand, in step S605, if when the complexity of frame is complicated, then the basic layer with all frames is packaged into basic layer grouping.For instance, a basic layer grouping BP comprise frame F0, F8, F4, F2, F6, F1, F3, F5, F7, F16 ... resolution aspect basic layer-QCIF BL0, BL8, BL4, BL2, BL6, BL1, BL3, BL5, BL7, BL16 ....
Then, in step S611,, will be packaged at least one second enhancement mode grouping corresponding to the enhancement layer of basic layer of frame that divides into groups according to the feature of the second bit stream parameter.Afterwards, in step S613,, will be packaged at least one the 3rd enhancement mode grouping corresponding to the enhancement layer of basic layer of frame that divides into groups according to the 3rd bit stream parameter, according to the second bit stream parameter, will be packaged at least one the 4th enhancement mode grouping again corresponding to the basic layer of basic layer of frame that divides into groups.
The result schematic diagram of the SVC bit stream encapsulation of the 9th embodiment is described with reference to figure 7D for instance.Second enhancement mode grouping EP2_1 comprise frame F0, F8, F4, F2, F6, F1, F3, F5, F7, F16 ... enhancement layer EL0_1, EL0_2, EL8_1, EL8_2, EL4_1, EL4_2, EL2_1, EL2_2, EL6_1, EL6_2, EL1_1, EL1_2, EL3_1, EL3_2, EL5_1, EL5_2, EL7_1, EL7_2, EL16_1, EL16_2 ....
The 3rd enhancement mode grouping EP3_1 comprise frame F0, F8, F4, F2, F6, F1, F3, F5, F7, F16 ... enhancement layer EL0_3, EL8_3, EL4_3, EL2_3, EL6_3, EL1_3, EL3_3, EL5_3, EL7_3, EL16_3 ....The 4th enhancement mode grouping EP4_1 comprise frame F0, F8, F4, F2, F6, F1, F3, F5, F7, F16 ... enhancement layer EL0_4, EL0_5, EL0_6, EL8_4, EL8_5, EL8_6, EL4_4, EL4_5, EL4_6, EL2_4, EL2_5, EL2_6, EL6_4, EL6_5, EL6_6, EL1_4, EL1_5, EL1_6, EL3_4, EL3_5, EL3_6, EL5_4, EL5_5, EL5_6, EL7_4, EL7_5, EL7_6, EL16_4, EL16_5, EL16_6 ....
Then, when being positioned over above-mentioned grouping on the network, the user just can be according to the size of the network bandwidth, download required basic layer grouping BP (that is basic layer grouping of the basic layer of basic layer of all frame that divides into groups or encapsulate of the basic layer of packed part frame), carry out the broadcast of video pictures, so that can continue view and admire image, and can not produce the problem of disconnected news.Then, if having under the state of unnecessary bandwidth, the user can download enhancement mode grouping, the grouping of second enhancement mode ... etc., so that increase the quality (that is resolution of picture) of video pictures.
In sum, above-mentioned all embodiment are by the feature of bit stream parameter in the SVC bit stream, and selecting property is packaged into basic layer grouping (the basic layer that also is about to all frames is packaged into basic layer grouping or the basic layer of frame that will part is packaged into basic layer grouping) with the basic layer of frame.Thus, under limited bandwidth, can increase the fluency (that is can not cause the disconnected news of video) that picture is play because of network congestion.In addition, the basic layer of basic layer of frame that divides into groups and the enhancement layer in the frame will be packaged into, be packaged at least one enhancement mode grouping and at least one second enhancement mode grouping respectively again,, can make picture reach preferred picture quality so that having under the unnecessary bandwidth.
Though the present invention discloses as above with embodiment; right its is not in order to qualification the present invention, those of ordinary skill in any affiliated technical field, without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking the claim person of defining.
Claims (8)
1. the bit stream method for packing of an adjustable video coding standard comprises:
Obtain the SVC bit stream, wherein this SVC bit stream has a plurality of frames, and each those frame has basic layer and a plurality of enhancement layers;
According to the feature of the bit stream parameter in this SVC bit stream, analyze the complexity of those frames; And
According to the complexity of those frames, selectivity should be packaged into basic layer grouping by basic layer with those frames;
Wherein selectivity comprising the step that should basic layer be packaged into this basic layer grouping of those frames:
Complexity in those frames is hour, substantially the layer of those frames of part was packaged into this basic layer grouping, and the layer substantially that will remain those frames be packaged at least one enhancement mode grouping, and wherein this enhancement mode divides into groups to comprise at least by a key picture to be estimated the picture data that obtains; And
When the complexity in those frames when being big, all those frames should be packaged into this basic layer grouping by basic layer.
2. the bit stream method for packing of adjustable video coding standard as claimed in claim 1, wherein this bit stream parameter is a motion vector.
3. the bit stream method for packing of adjustable video coding standard as claimed in claim 1, wherein this SVC bit stream also has the second bit stream parameter, and in will those frames of part should be packaged into this basic layer grouping by basic layer, and the step that should basic layer be packaged at least one enhancement mode grouping that will remain those frames also comprises afterwards:
Feature according to this second bit stream parameter, at least one second enhancement mode grouping will be packaged into to those enhancement layers of those frames during layer divides into groups substantially, at least one the 3rd enhancement mode grouping will be packaged into corresponding to those enhancement layers of those frames in this enhancement mode grouping;
Wherein this second bit stream parameter be quantization parameter and block size one of them.
4. the bit stream method for packing of adjustable video coding standard as claimed in claim 3, wherein this SVC bit stream also has the 3rd bit stream parameter, and in the feature according to this second bit stream parameter, will to should be substantially those enhancement layers of those frames in the layer grouping be packaged at least one second enhancement mode grouping, also comprise after will being packaged into the step of at least one the 3rd enhancement mode grouping corresponding to those enhancement layers of those frames in this enhancement mode grouping:
Feature according to the 3rd bit stream parameter, at least one the 4th enhancement mode grouping will be packaged into to those enhancement layers of those frames during layer divides into groups substantially, at least one the 5th enhancement mode grouping will be packaged into corresponding to those enhancement layers of those frames in this enhancement mode grouping; And
Feature according to this second bit stream parameter, will to should the 4th enhancement mode those enhancement layers of those frames in the grouping be packaged at least one the 6th enhancement mode grouping, will be packaged at least one the 7th enhancement mode grouping corresponding to those enhancement layers of those frames in the grouping of the 5th enhancement mode;
Wherein this second bit stream parameter and the 3rd bit stream parameter are respectively block size or quantization parameter, and this second bit stream parameter is different separately with the 3rd bit stream parameter.
5. the bit stream method for packing of adjustable video coding standard as claimed in claim 1, wherein this SVC bit stream also has the second bit stream parameter, and also comprises after the step that should basic layer be packaged into this basic layer grouping with all those frames:
According to the feature of this second bit stream parameter, will be packaged at least one second enhancement mode grouping to those enhancement layers of those frames during layer divides into groups substantially;
Wherein this second bit stream parameter be quantization parameter and block size one of them.
6. the bit stream method for packing of adjustable video coding standard as claimed in claim 5, wherein this SVC bit stream also has the 3rd bit stream parameter, and in the feature according to this second bit stream parameter, the step that will be packaged at least one second enhancement mode grouping to those enhancement layers of those frames during layer divides into groups substantially also comprises afterwards:
According to the feature of the 3rd bit stream parameter, will be packaged at least one the 3rd enhancement mode grouping to those enhancement layers of those frames in should the enhancement mode grouping; And
According to the feature of the second bit stream parameter, will be packaged at least one the 4th enhancement mode grouping to those enhancement layers of those frames during layer divides into groups substantially;
Wherein this second bit stream parameter and the 3rd bit stream parameter are respectively block size or quantization parameter, and this second bit stream parameter is different separately with the 3rd bit stream parameter.
7. the bit stream method for packing of an adjustable video coding standard comprises the following steps:
Obtain the SVC bit stream, wherein this SVC bit stream has a plurality of frames, and each those frame has basic layer and a plurality of enhancement layers;
According to the feature of the bit stream parameter of this SVC bit stream, analyze the complexity of those frames;
When the complexity in those frames when being big, all those frames should be packaged into basic layer grouping by basic layer; And
Complexity in those frames is hour, encapsulation mechanism and the second bit stream parameter in this SVC bit stream and the feature of the 3rd bit stream parameter according to layer grouping substantially, at least one second enhancement mode grouping will be packaged into corresponding to those enhancement layers of basic layer of those frame that divides into groups, at least one the 3rd enhancement mode grouping will be packaged into corresponding to those enhancement layers of those frames in the enhancement mode grouping;
Wherein this bit stream parameter is a motion vector, and this second bit stream parameter and the 3rd bit stream parameter be respectively quantization parameter and block size one of them, and this second bit stream parameter and the 3rd bit stream parameter are inequality separately.
8. the bit stream method for packing of adjustable video coding standard as claimed in claim 7 also comprises:
Complexity according to those frames, substantially the layer of those frames of part was packaged into the second basic layer grouping, and the layer substantially that will remain those frames be packaged at least one enhancement mode grouping, and wherein this enhancement mode divides into groups to comprise at least by a key picture to be estimated the picture data that obtains; And
According to this second bit stream parameter in this SVC bit stream and the feature of the 3rd bit stream parameter, to be packaged at least one the 4th enhancement mode grouping corresponding to those enhancement layers of basic layer of those frame that divides into groups, to be packaged at least one the 5th enhancement mode grouping corresponding to those enhancement layers of those frames of this enhancement mode grouping, and will to should the 4th enhancement mode those enhancement layers of those frames in the grouping be packaged at least one the 6th enhancement mode grouping, will be packaged at least one the 7th enhancement mode grouping corresponding to those enhancement layers of those frames in the grouping of the 5th enhancement mode.
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