Re: [Opensvcdecoder-support] SNR and spacial scaling not workig in OSVCD using my SVC videos

[Médéric B. <mbl...@gm...>]

Hi,

Can you send us encoding traces?
Which project are you using?

Regards,
Médéric


2013/5/2 Yahia Benmoussa <yah...@gm...>

> Hello all,
>
> I'm  still not able to switch between SNR and spacial layers using osvcd.
>
> To find what is wrong with my videos, I tried to debug calls to
> switch_layer() function which is responsible to switch layer on IDR frame
> but i noticed that this function is never called even when  SNR and spacial
> layers switching works correctly  (Using videos in
> http://sourceforge.net/projects/opensvcdecoder/files/Video%20Streams/).
>
> Thanks for your help.
>
> Yahia
>
>
>
>
>
> 2013/4/29 Yahia Benmoussa <yah...@gm...>
>
>> but it is still not working
>>
>>
>> 2013/4/29 Yahia Benmoussa <yah...@gm...>
>>
>>> Hi Médéric,
>>>
>>> I checked the log files when coding SVC videos and it seems the IDR
>>> frames are inserted periodically.
>>>
>>> Thanks.
>>> Yahia
>>>
>>>
>>> 2013/4/29 Yahia Benmoussa <yah...@gm...>
>>>
>>>> Hi médéric,
>>>>
>>>>
>>>> I think yes. I set IntraPeriod   parameter to 32 which means JSVM
>>>> encoder inserts 1 IDR each 32 frames. Is this correct ?
>>>>
>>>> Thanks.
>>>> Yahia
>>>>
>>>>
>>>> 2013/4/29 Médéric Blestel <mbl...@gm...>
>>>>
>>>>> Hi,
>>>>>
>>>>> Switching of spatial or quality layer is only occuring on IDR frames.
>>>>> Does your stream contain IDR frames?
>>>>>
>>>>>
>>>>> Médéric
>>>>>
>>>>>
>>>>>
>>>>> 2013/4/29 Yahia Benmoussa <yah...@gm...>
>>>>>
>>>>>> Hi all,
>>>>>>
>>>>>> I've coded  SVC videos using JSVM but OSVCD is not able to switch to
>>>>>> the contained  spacial and SNR layers. The switching to temporal layer
>>>>>> works fine.
>>>>>>
>>>>>> The SNR and the spacial scalability works fine when using the test
>>>>>> sequences in (
>>>>>> http://sourceforge.net/projects/opensvcdecoder/files/Video%20Streams/
>>>>>> ).
>>>>>>
>>>>>> Some parameters may be wrong in my JSVM configuration files. Here an
>>>>>> example of a SNR scalability in my SVC file.
>>>>>>
>>>>>>
>>>>>> JSVM 9.19.15 BitStream Extractor
>>>>>> Contained Layers:
>>>>>> ====================
>>>>>>
>>>>>>        Layer   Resolution   Framerate   Bitrate MinBitrate      DTQ
>>>>>>          0     352x288       1.8750     219.20      219.20   (0,0,0)
>>>>>>          1     352x288       3.7500     238.30      238.30   (0,1,0)
>>>>>>          2     352x288       7.5000     264.90      264.90   (0,2,0)
>>>>>>          3     352x288      15.0000     293.70     293.70   (0,3,0)
>>>>>>          4     352x288      30.0000     320.10     320.10   (0,4,0)
>>>>>>          5     352x288       1.8750    1072.20
>>>>>> (0,0,1)
>>>>>>          6     352x288       3.7500    1492.20
>>>>>> (0,1,1)
>>>>>>          7     352x288       7.5000    2215.00
>>>>>> (0,2,1)
>>>>>>          8     352x288      15.0000    3401.00
>>>>>> (0,3,1)
>>>>>>          9     352x288      30.0000    5019.00
>>>>>> (0,4,1)
>>>>>>
>>>>>>
>>>>>> The used configuration files are :
>>>>>>
>>>>>>  *main.cfg :*
>>>>>>
>>>>>> OutputFile              mobile.264   # Bitstream file
>>>>>> FrameRate               30.0       # Maximum frame rate [Hz]
>>>>>> FramesToBeEncoded       300      # Number of frames (at input frame
>>>>>> rate)
>>>>>> GOPSize                 16        # GOP Size (at maximum frame rate)
>>>>>> BaseLayerMode           1          # Base layer mode (0,1: AVC
>>>>>> compatible,
>>>>>> IntraPeriod             32                      #
>>>>>> 2: AVC w subseq SEI)
>>>>>> NumberReferenceFrames   8
>>>>>> LoopFilterDisable       1
>>>>>> InterLayerLoopFilterDisable 1
>>>>>> CgsSnrRefinement        1          # SNR refinement as 1: MGS; 0: CGS
>>>>>> EncodeKeyPictures       1          # Key pics at T=0 (0:none, 1:MGS,
>>>>>> 2:all)
>>>>>> #MGSControl              2          # ME/MC for non-key pictures in
>>>>>> MGS layers
>>>>>>                                    # (0:std, 1:ME with EL, 2:ME+MC
>>>>>> with EL)
>>>>>> SearchMode              4          # Search mode (0:BlockSearch,
>>>>>> 4:FastSearch)
>>>>>> SearchRange             32         # Search range (Full Pel)
>>>>>> NumLayers               2          # Number of layers
>>>>>> LayerCfg                layer0.cfg # Layer configuration file
>>>>>> LayerCfg                layer1.cfg # Layer configuration file
>>>>>>
>>>>>> *layer0.cfg : *
>>>>>>
>>>>>> InputFile            ../mobile.cif.yuv  # Input  file
>>>>>> SourceWidth          352            # Input  frame width
>>>>>> SourceHeight         288            # Input  frame height
>>>>>> FrameRateIn          30             # Input  frame rate [Hz]
>>>>>> FrameRateOut         30             # Output frame rate [Hz]
>>>>>> MGSVectorMode        0              # MGS vector usage selection
>>>>>>
>>>>>> *layer1.cfg*
>>>>>>
>>>>>> InputFile            ../mobile.cif.yuv  # Input  file
>>>>>> SourceWidth          352            # Input  frame width
>>>>>> SourceHeight         288            # Input  frame height
>>>>>> FrameRateIn          30             # Input  frame rate [Hz]
>>>>>> FrameRateOut         30             # Output frame rate [Hz]
>>>>>> InterLayerPred       1              # Inter-layer Prediction (0: no,
>>>>>> 1: yes, 2:adaptive)
>>>>>> MGSVectorMode        0              # MGS vector usage selection
>>>>>>
>>>>>> Thanks in advance.
>>>>>>
>>>>>> Yahia
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
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>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>