Certain 720p & 1080p HD files jerky AppleTV 1 with Crystal HD card
#1
Hi,

I've tried searching for an answer to this, but I can't seem to find one.

I have an AppleTV 1st gen with the BCM970015 Crystal HD and Crystalubuntu.

I find that general playback, even non HD files can occasionally be jerky, but more so with some 720p/1080p MKV files. There is one that I'm trying to watch now and it's pretty bad. I rebooted and watched the film for 5 mins. The log file can be found here.

The video format is:

CODEC...............: X264
FILE SIZE...........: 2.00 GB
RESOLUTION..........: 1920*800
FRAME RATE..........: 23.976 fps
AUDIO...............: 92.0 Kbps AAC-LC (2CH)
SUBTITLES...........: English
LANGUAGE............: English
RUNTIME.............: 149 mins

Below is some messages that repeat and I believe to be related.

Code:
20:14:52 T:2591611712   DEBUG: CPullupCorrection: pattern lost on diff 41700.000000
20:14:54 T:2600004416   DEBUG: CrystalHD: No timestamp detected: 0
20:15:27 T:2591611712   DEBUG: Previous line repeats 8 times.
20:15:27 T:2591611712   DEBUG: CPullupCorrection: detected pattern of length 1: 41708.33, frameduration: 41708.333333
20:15:29 T:2600004416   DEBUG: CrystalHD: No timestamp detected: 0
20:15:29 T:2591611712   DEBUG: CPullupCorrection: pattern lost on diff 83420.000000
20:15:34 T:2591611712   DEBUG: CPullupCorrection: detected pattern of length 1: 41708.33, frameduration: 41708.333333
20:15:36 T:2600004416   DEBUG: CrystalHD: No timestamp detected: 0
20:15:36 T:2591611712   DEBUG: CPullupCorrection: pattern lost on diff 83420.000000
20:15:39 T:2600004416   DEBUG: CrystalHD: No timestamp detected: 0
20:15:44 T:2591611712   DEBUG: CPullupCorrection: detected pattern of length 1: 41708.33, frameduration: 41708.333333
20:15:44 T:2600004416   DEBUG: CrystalHD: No timestamp detected: 0
20:15:45 T:2591611712   DEBUG: CPullupCorrection: pattern lost on diff 83400.000000
20:15:49 T:2600004416   DEBUG: CrystalHD: No timestamp detected: 0
20:15:58 T:2591611712   DEBUG: Previous line repeats 1 times.
20:15:58 T:2591611712   DEBUG: CPullupCorrection: detected pattern of length 1: 41708.33, frameduration: 41708.333333
20:16:00 T:2600004416   DEBUG: CrystalHD: No timestamp detected: 0
20:16:00 T:2591611712   DEBUG: CPullupCorrection: pattern lost on diff 83420.000000
20:16:02 T:2600004416   DEBUG: CrystalHD: No timestamp detected: 0
20:16:09 T:2591611712   DEBUG: Previous line repeats 2 times.
20:16:09 T:2591611712   DEBUG: CPullupCorrection: detected pattern of length 52: 41700.00 41700.00 41720.00 41700.00 41720.00 41700.00 41710.00 41710.00 41700.00 41720.00 41700.00 41720.00 41700.00 41700.00 41720.00 41700.00 83420.00 41710.00 41710.00 41700.00 41720.00 41700.00 41720.00 41700.00 41700.00 41720.00 41700.00 41720.00 41700.00 41710.00 41710.00 41700.00 41720.00 41700.00 41720.00 41700.00 41700.00 41720.00 41700.00 41720.00 41700.00 41710.00 41710.00 41700.00 41720.00 41700.00 41720.00 41700.00 41700.00 41720.00 41700.00 41720.00, frameduration: 42510.384615
20:16:11 T:2600004416   DEBUG: CrystalHD: No timestamp detected: 0
20:16:11 T:2591611712   DEBUG: CPullupCorrection: pattern lost on diff 83420.000000
20:16:12 T:2600004416   DEBUG: CrystalHD: No timestamp detected: 0
20:16:24 T:2591611712   DEBUG: Previous line repeats 5 times.
20:16:24 T:2591611712   DEBUG: CPullupCorrection: detected pattern of length 56: 41710.00 41700.00 41720.00 41700.00 41710.00 41710.00 41710.00 41710.00 83420.00 41700.00 41710.00 41710.00 41700.00 41720.00 41700.00 41710.00 41710.00 41710.00 41710.00 41700.00 41720.00 41700.00 41710.00 41710.00 41700.00 41720.00 41700.00 41710.00 41710.00 41710.00 41710.00 41700.00 41720.00 41700.00 41710.00 41710.00 41700.00 41720.00 41700.00 41710.00 41710.00 41710.00 41710.00 41700.00 41720.00 41700.00 41710.00 41710.00 41700.00 41720.00 41700.00 41710.00 41710.00 41710.00 41710.00 41710.00, frameduration: 42453.214286
20:16:26 T:2541255488   DEBUG: CDVDPlayerAudio:: Discontinuity2 - was:694418069.000631, should be:694408008.282216, error:-10060.718415
20:16:26 T:2600004416   DEBUG: CrystalHD: No timestamp detected: 0
20:16:26 T:2591611712   DEBUG: CPullupCorrection: pattern lost on diff 83420.000000

If anyone can provide some assistance it would be most appreciated.

Many thanks
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Certain 720p & 1080p HD files jerky AppleTV 1 with Crystal HD card0