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[BartMan01]

Is it possible to get Media Center 16 to display subtitles w/o losing DXVA?  Using the VOBSUB filter, I lose hardware acceleration.  Using MPC-HD I can get subtitles and DXVA to work at the same time, but they use their own subtitle filter - not VOBSUB.

[BryanC]

What playback filter are you using? Have you tried ffdshow subtitles?

[sunfire7]

You cant, unless MC implement a subs engine like MPC-HC and company did.

Did you tried CoreAVC ? its the fastest codec for h.264, and if you have an Nvidia Card, you can use CUDA for acceleration of h.264, kinda dxva but you can put subtitles with this.

[Alex B]

SRT subtitles work for me with ffdshow tryouts DXVA decoder by using the decoder's built-in subtitle support.

For instance, MKV, AVC, DTS, embedded SRT inside MKV, ATI Radeon HD 4200:

Filter Graph Info:

Code: [Select]

Filter 'JRiver Audio Renderer'
        CLSID: {A4002F8E-510F-442C-8AD3-F9C7B23FB394}
        Host:
        Input Pin 'In'
            Connected to pin 'Out' of filter 'ffdshow Audio Decoder'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_IEEE_FLOAT, Format type FORMAT_WaveFormatEx

    Filter 'Video Mixing Renderer 9'
        CLSID: {51B4ABF3-748F-4E3B-A276-C828330E926A}
        Host: c:\windows\system32\quartz.dll
        Input Pin 'VMR Input0'
            Connected to pin 'Out' of filter 'ffdshow DXVA Video Decoder'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {1B81BE68-A0C7-11D3-B984-00C04F2E73C5}, Format type FORMAT_VideoInfo2
        Input Pin 'VMR Input1'

    Filter 'ffdshow Audio Decoder'
        CLSID: {0F40E1E5-4F79-4988-B1A9-CC98794E6B55}
        Host: c:\program files\combined community codec pack\filters\ffdshow\ffdshow.ax
        Output Pin 'Out'
            Connected to pin 'In' of filter 'JRiver Audio Renderer'
            Major type MEDIATYPE_Audio  Sub type MEDIASUBTYPE_IEEE_FLOAT, Format type FORMAT_WaveFormatEx
        Input Pin 'In'
            Connected to pin 'Audio' of filter 'Haali Media Splitter'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {00002001-0000-0010-8000-00AA00389B71}, Format type FORMAT_WaveFormatEx
        Input Pin 'In2'

    Filter 'ffdshow DXVA Video Decoder'
        CLSID: {0B0EFF97-C750-462C-9488-B10E7D87F1A6}
        Host: c:\program files\combined community codec pack\filters\ffdshow\ffdshow.ax
        Input Pin 'In'
            Connected to pin 'Video' of filter 'Haali Media Splitter'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO
        Output Pin 'Out'
            Connected to pin 'VMR Input0' of filter 'Video Mixing Renderer 9'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {1B81BE68-A0C7-11D3-B984-00C04F2E73C5}, Format type FORMAT_VideoInfo2
        Input Pin 'In Text'
            Connected to pin 'Subtitle' of filter 'Haali Media Splitter'
            Major type Unknown GUID Name: {E487EB08-6B26-4BE9-9DD3-993434D313FD}  Sub type Unknown GUID Name:
{87C0B230-03A8-4FDF-8010-B27A5848200D}, Format type Unknown GUID Name: {87C0B230-03A8-4FDF-8010-B27A5848200D}
        Input Pin 'In Text 2'

    Filter 'Haali Media Splitter'
        CLSID: {55DA30FC-F16B-49FC-BAA5-AE59FC65F82D}
        Host: c:\program files\directshow filterpack\haali splitter\matroskasplitter\splitter.ax
        Output Pin 'Video'
            Connected to pin 'In' of filter 'ffdshow DXVA Video Decoder'
            Major type MEDIATYPE_Video  Sub type Unknown GUID Name: {31435641-0000-0010-8000-00AA00389B71}, Format type FORMAT_MPEG2_VIDEO
        Output Pin 'Audio'
            Connected to pin 'In' of filter 'ffdshow Audio Decoder'
            Major type MEDIATYPE_Audio  Sub type Unknown GUID Name: {00002001-0000-0010-8000-00AA00389B71}, Format type FORMAT_WaveFormatEx
        Output Pin 'Subtitle'
            Connected to pin 'In Text' of filter 'ffdshow DXVA Video Decoder'
            Major type Unknown GUID Name: {E487EB08-6B26-4BE9-9DD3-993434D313FD}  Sub type Unknown GUID Name:
{87C0B230-03A8-4FDF-8010-B27A5848200D}, Format type Unknown GUID Name: {87C0B230-03A8-4FDF-8010-B27A5848200D}
Not all tryouts builds are good. The above graph is from ffdshow tryouts rev. 3825. I just tried the rev. 3851, but DXVA decoding didn't work at all. Playback didn't advance. I installed the rev. 3825 back and the problem disappeared.

[BartMan01]

You cant, unless MC implement a subs engine like MPC-HC and company did.

Did you tried CoreAVC ? its the fastest codec for h.264, and if you have an Nvidia Card, you can use CUDA for acceleration of h.264, kinda dxva but you can put subtitles with this.

I used to use CoreAVC when I had an nVidia card, but when I converted the machine to be a true HTPC I had to ditch nVidia due to the fact that their driver locks in 16-235 as the color space if it sees your set as a TV - and it uses the presence of HDMI audio to make that determination - so I could either have the correct color space for my set (0-255) or HD audio over HDMI.  And yes, I tried every setting possible and confirmed the issue was a known issue with nVidia support with no concrete plans to fix.

Alex B:  I never could get ffdshow to do subtitles on it's own but it may have been the tryout build I was using.  I will play with that.

So far, HTPC has been total hell.  Everytime I get CODECs configured to make one thing work, it breaks another (like subtitles + DXVA or stream MKV without transcode to 360 vs HD audio locally from MKV).  At one point I even manged to break TV playback and had to clean out all CODECs and filters to correct.

[Alex B]

Alex B:  I never could get ffdshow to do subtitles on it's own but it may have been the tryout build I was using.  I will play with that.

I think ffdshow DXVA + subtitles can work only with certain renderers. As you can see from my graph, I use 'Video Mixing Renderer 9'. If I recall correctly Enhanced Video Renderer didn't work.