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  #1  
Old 12-28-2019, 02:30 PM
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timg11 timg11 is offline
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HD-300 - what limit on bit rate handling?

I generated a video using Davinci Resolve. It was rendered at as H.264 mp4 at 1080, 29.97 frames per second. I copied the file to the SageTV server, and tried to play it on the HD-300. It froze, stuttered, and lost audio.

The video plays fine with VLC on the server PC.
The server and HD-300 are connected by ethernet through a gigabit switch.

I let Davince Resolve render it with unlimited bit rate, and there is a lot of motion. VLC's status says the bit rate goes up to 30 Mbps.

I have rendered other videos with Resolve's default limit of 10 mbps, and they have played OK, although there are noticeable artifacts.

Is 30 Mbps more than the HD-300 can handle? If there is limit, what is it?
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HD300 extender with SageTV V9.1.10 (service mode), Running on Windows 7 (32 bit), E8400 3GHz dual core CPU, 4G RAM, Gigabyte GA-P35-DS3L motherboard. NVidia 8600GT; Viewsonic LCD on one output and Mitsubishi WD57734 HDTV via DVI/HDMI on other output. HDHomeRun tuner, HD-PVR Rev E1. HD-PVR 2 connected to Google Fiber GFHD200.
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  #2  
Old 12-28-2019, 05:07 PM
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KryptoNyte KryptoNyte is offline
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I played a 42 Mbps file the other day on a WIRED HD300, so it's not bitrate.

Maybe you could download and install Mediainfo and get all the media file attributes and copy them into this thread.
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  #3  
Old 12-28-2019, 06:09 PM
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timg11 timg11 is offline
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Here's the MediaInfo report.
The bit rate is quite a bit higher than VLC reported (130 Mb/s instead of 30) - but I think VLC shows real-time, not peak.



Code:
General
Complete name                            : D:\Video\Colorado2019-5.mp4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/iso2/avc1/mp41)
File size                                : 6.96 GiB
Duration                                 : 7 min 38 s
Overall bit rate                         : 130 Mb/s
Writing application                      : Lavf57.25.100

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Main@L4
Format settings                          : 2 Ref Frames
Format settings, CABAC                   : No
Format settings, RefFrames               : 2 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 7 min 38 s
Bit rate                                 : 130 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 29.970 (30000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 2.095
Stream size                              : 6.95 GiB (100%)
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 7 min 38 s
Duration_LastFrame                       : -10 ms
Bit rate mode                            : Constant
Bit rate                                 : 192 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 10.7 MiB (0%)
Default                                  : Yes
Alternate group                          : 1
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HD300 extender with SageTV V9.1.10 (service mode), Running on Windows 7 (32 bit), E8400 3GHz dual core CPU, 4G RAM, Gigabyte GA-P35-DS3L motherboard. NVidia 8600GT; Viewsonic LCD on one output and Mitsubishi WD57734 HDTV via DVI/HDMI on other output. HDHomeRun tuner, HD-PVR Rev E1. HD-PVR 2 connected to Google Fiber GFHD200.
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  #4  
Old 12-28-2019, 06:17 PM
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KryptoNyte KryptoNyte is offline
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I believe the HD300's are 100 megabits per second network capable, so that's likely the issue. Sometimes with video, I've found that exporting to a lossless (or nearly lossless) format is the key, and then I use Handbrake to do the final encoding to something reasonable.

Just to keep things in perspective, most bluray disc data content is probably going to be right around 40 megabits per second.
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