Hauppauge captures not playing back properly

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waverz Offline
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Post: #1
I've been trying to capture videos from my DirectV reciever to my PC using a Hauppauge HD-PVR 2 1512. I seem to be able to capture fine but there is a problem with playback using XBMC. The PVR captures AVC in TS,M2TS, and MP4 containers. I've tried them all with various bit rates and resolutions but non seem to play back properly on my ATV2 runing XBMC 12.3.

I've even tried capturing 480p at a very low bitrate. While the playback is somewhat better it's still choppy and buffers a lot.

Here is the info for a sample I captured:

General
Complete name : \\Quadcore-pc\dtv\Hauppauge Captures\2014_7_11_19_31_3.MP4
Format : MPEG-4
Format profile : 3GPP Media Release 4
Codec ID : 3gp4
File size : 11.3 MiB
Duration : 20s 204ms
Overall bit rate : 4 679 Kbps
Encoded date : UTC 2014-07-12 00:31:27
Tagged date : UTC 2014-07-12 00:31:27

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 20s 204ms
Bit rate : 4 559 Kbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 59.940 fps
Minimum frame rate : 59.820 fps
Maximum frame rate : 60.060 fps
Standard : Component
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.083
Stream size : 11.0 MiB (97%)
Language : English
Encoded date : UTC 2014-07-12 00:31:27
Tagged date : UTC 2014-07-12 00:31:27
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 20s 203ms
Bit rate mode : Constant
Bit rate : 104 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 257 KiB (2%)
Language : English
Encoded date : UTC 2014-07-12 00:31:27
Tagged date : UTC 2014-07-12 00:31:27

I've been reading forums and trying all different types of settings pretty much all day and I'm at a total loss here.

I suspect it may be something to do with the codec the Hauppauge captures with but that's just a guess.

Anyone have any ideas why this is causing me such grief?
(This post was last modified: 2014-07-12 03:18 by waverz.)
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nickr Online
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Post: #2
debug log on playback would be helpful I am sure.

I am not sure what ATV2's playback capabilities are.

Is this really progressive? The frame rate (60) tells me it might be interlaced, try forcing deinterlacing on playback.

also can you put a sample up for testing?

If I have helped you or increased your knowledge, click the plus button and increase my reputation :)
(This post was last modified: 2014-07-12 06:41 by nickr.)
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waverz Offline
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Post: #3
I'll see about getting a debug log and sample up tomorrow.

I've tried a few more things since my original post.

I installed Gotham onto another Windows 7 machine and it plays fine.
It even plays fine with either 5.1 optical selected as a source or HDMI which is only 2.0. That leads me to believe that the audio is not the issue.

I've also upgraded me ATV2 to Gotham and get the same results with the 5.1 and 2.0 audio source.

Deinterlacing option is greyed out in Gotham during playback.
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waverz Offline
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Post: #4
Did some more research/experimenting.

It seems the ATV2 has issues handling the transport streams. I've downloaded some public .ts and they all have the same playback issues as the files that I am capturing.

Bummer.
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