DXVA Codec problems / DVD Menu problems (1 Viewer)

hoborg

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BTW, here is screenshot from PDVD10 DVD playback - HW acceleration enabled, but no DxVA...
Snap2.png
 

tourettes

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    About FFDShow desync - it seems to be LiveTV only. If i play back TS file in MePo, audio/video is in sync.

    Is the A/V sync correct right after opening live tv (before any channel changes are done). Since I think the TsReader's behavior just confuses ffdshow.

    About DVD - you have nVidia, right? Can you try to play DVD in MePo, connect graphstudio and take screenshot to see if NV12 or DxVA is in use with Microsoft DTV-DVD Video Decoder ?

    0x3231564e [NV12] is used. DXVA gets used since same format is used for H264 video and the CPU wont have just enough power to do 1080p H264 decoding alone.

    Also DXVA2 uses NV12 when DXVA is used: Supporting DXVA 2.0 in DirectShow (Windows)

    During media type negotiation, the decoder does not use a video acceleration GUID as the subtype. Instead, the subtype is just the uncompressed video format (such as NV12), as with software decoding.
     

    hoborg

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    Is the A/V sync correct right after opening live tv (before any channel changes are done). Since I think the TsReader's behavior just confuses ffdshow.

    A/V desync happend just after LiveTV start. My HTPC is XP based, so may be this is the reason?

    0x3231564e [NV12] is used. DXVA gets used since same format is used for H264 video and the CPU wont have just enough power to do 1080p H264 decoding alone.

    Also DXVA2 uses NV12 when DXVA is used: Supporting DXVA 2.0 in DirectShow (Windows)

    During media type negotiation, the decoder does not use a video acceleration GUID as the subtype. Instead, the subtype is just the uncompressed video format (such as NV12), as with software decoding.

    Thanks for info, i didnt known that. I develop SAF on XP and there is DxVA here. That confused me.
    BTW, DVD navigation now working fine even in MePo+EVR, but i think it is becouse of Line 21 filter which was added in MePo 1.1 i think.
     

    tourettes

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    BTW, DVD navigation now working fine even in MePo+EVR, but i think it is becouse of Line 21 filter which was added in MePo 1.1 i think.

    Line 21 is only providing a subtitling support for some North American DVDs. It doesn't ever contain the actual DVD menus (which are basicly same thing as the "normal" DVD subtitles).
     

    hoborg

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    BTW, DVD navigation now working fine even in MePo+EVR, but i think it is becouse of Line 21 filter which was added in MePo 1.1 i think.

    Line 21 is only providing a subtitling support for some North American DVDs. It doesn't ever contain the actual DVD menus (which are basicly same thing as the "normal" DVD subtitles).

    Strange. So what can cause it? If i open DVD in MPC-HC and use exactly same graph like in MePo, DVD navigation does not work. Only diference is missing Line 21 decoder. To bad there is no way how to build DVD graph in Graphstudio to test this :/

    EDIT: Taking this back, i now see the reason...
     

    hoborg

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    EDIT: Taking this back, i now see the reason...

    What was it? :)

    In MPC-HC EVR rederer is no pin for subpicture = menus cannot work under EVR + DxVA.

    Is the A/V sync correct right after opening live tv (before any channel changes are done). Since I think the TsReader's behavior just confuses ffdshow.

    A/V desync happend just after LiveTV start. My HTPC is XP based, so may be this is the reason?


    Same with Win7 32Bit

    Moved here, thare is already thread about this issue.
     

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