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2008-02-26
, 23:11
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Posts: 428 |
Thanked: 54 times |
Joined on Mar 2006
@ Washington DC
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#32
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Originally Posted by Serge
I don't know how to snip/trim out a sample. The whole file is 175 megabytes, how would I send that to you?
A sample of the video file with heavy audio sync would be nice to have.
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2008-02-27
, 07:14
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Posts: 503 |
Thanked: 267 times |
Joined on Jul 2006
@ Helsinki
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#33
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Originally Posted by phi
If you have mencoder (it is part of mplayer package) on your desktop PC, you can extract video fragment using the following command line:
I don't know how to snip/trim out a sample. The whole file is 175 megabytes, how would I send that to you?
mencoder -oac copy -ovc copy -ss <start_position_in_seconds> -endpos <duration_in_seconds> <your_full_avi_file_name> -o <output_fragment_file_name>
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2008-02-27
, 07:17
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Posts: 503 |
Thanked: 267 times |
Joined on Jul 2006
@ Helsinki
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#34
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Originally Posted by andy1
Can you also provide a small sample of such stream, so that I could use it for benchmarking?
Thanks for the answers, btw what I meant about wlan bottleneck was that I tried the same type of stream which I allready had saved to memorycard prior to playing it. My goal is to stream digital tv to my tablet trough my wlan or internet when im not home. I'll guess when the dvd-decoding works efficiently enough the tvstream should also works as it's pal resolution interlaced mpeg2 stream with much lower bitrate than dvd:s.
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2008-02-27
, 09:13
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Posts: 24 |
Thanked: 8 times |
Joined on Oct 2007
@ Finland
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#35
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Sure, ill provide 2 samples sometime this evening when I try to capture something with bit more motion in it. Ill upload them to somewhere and post the link to you then.
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2008-02-29
, 07:31
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Posts: 2 |
Thanked: 0 times |
Joined on Feb 2008
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#36
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Thank you very much for the resume function. And the startup time on my old 770 seems much shorter than before; making my Nokia a great PMP with his beautiful screen!
Cyrille
Cyrille
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2008-03-03
, 18:16
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Moderator |
Posts: 7,109 |
Thanked: 8,820 times |
Joined on Oct 2007
@ Vancouver, BC, Canada
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#37
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With version .25, all of my transcoded videos (using VirtualDub, XviD video and LAME MP3 audio) have a permanent audio/video sync problem (doesn't appear to be a framerate issue). The audio seems to be playing early by a constant, small amount. The Nokia N800 video (the one that came with the device) doesn't seem to have this problem. Uninstalling .25 and installing .24 fixes the problem.
I really like the resume function. I have MediaPortal at home on my media computer, and it remembers the resume point for all previously played media files, not just the last played file. This would be a nice feature.
(oh, I have an N800 and OS2008)
Edit: this seems to be the same problem as phi had:
Last edited by qole; 2008-03-03 at 18:42.
I really like the resume function. I have MediaPortal at home on my media computer, and it remembers the resume point for all previously played media files, not just the last played file. This would be a nice feature.
(oh, I have an N800 and OS2008)
Edit: this seems to be the same problem as phi had:
Originally Posted by phi
I will PM you (Serge) with a link to a 2MB sample file. This is a clip from a file that was giving me problems this morning. However, since I have reverted to version .24, I can't guarantee that this file will be out of sync. If you can't recreate the problem with my sample, I'll re-install v.25 and see if it is broken on my machine.
audio seems to be a second off or less on xvid shows i have on my sd card
Last edited by qole; 2008-03-03 at 18:42.
| The Following User Says Thank You to qole For This Useful Post: | ||
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2008-03-03
, 22:46
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Posts: 503 |
Thanked: 267 times |
Joined on Jul 2006
@ Helsinki
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#38
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Originally Posted by qole
Thank you for the sample. It uses mono audio, and esd seems to estimate audio latency wrong. Does everyone who reported lipsync problems also have them with mono audio?
I will PM you (Serge) with a link to a 2MB sample file. This is a clip from a file that was giving me problems this morning. However, since I have reverted to version .24, I can't guarantee that this file will be out of sync. If you can't recreate the problem with my sample, I'll re-install v.25 and see if it is broken on my machine.
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2008-03-03
, 22:57
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Moderator |
Posts: 7,109 |
Thanked: 8,820 times |
Joined on Oct 2007
@ Vancouver, BC, Canada
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#39
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I don't think it is a mono audio problem. I have another (stereo) file with the same problem. Do you need stereo audio?
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2008-03-04
, 09:32
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Posts: 1,107 |
Thanked: 720 times |
Joined on Mar 2007
@ Germany
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#40
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Originally Posted by Serge
yes my mono encodes also show A/V offset. When launching mplayer from ssh, one can adjust/view the calculated offset with +/0 keys, and I can see that for my 22khz mono mp3 encodes there is a calculated offset of +560ms. (visible in mplayer display)
Thank you for the sample. It uses mono audio, and esd seems to estimate audio latency wrong. Does everyone who reported lipsync problems also have them with mono audio?
The offset seems to be identical regardless of encoder bitrate or vbr mode. The 560ms was observed with
-srate 22050 -channels 1 -oac mp3lame -lameopts lowpassfreq=11000:q=7:vol=2:aq=8:mode=3:padding=2
Anyone had realized that?