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2010-06-09
, 01:00
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Posts: 20 |
Thanked: 2 times |
Joined on Mar 2010
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#2
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2010-06-09
, 03:50
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Posts: 2,014 |
Thanked: 1,581 times |
Joined on Sep 2009
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#3
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2010-06-09
, 05:31
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Posts: 20 |
Thanked: 2 times |
Joined on Mar 2010
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#4
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2010-06-09
, 05:40
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Posts: 2,829 |
Thanked: 1,459 times |
Joined on Dec 2009
@ Finland
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#5
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2010-06-09
, 17:17
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Posts: 2,014 |
Thanked: 1,581 times |
Joined on Sep 2009
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#6
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I only used KMplayer and extra codecs but... since it caught my attention I went ahead and tried to tweak it: downloaded mplayer command line only then from within KMplayer clicked on the down arrow, Select Player, and switched to mplayer from osso-media-server... I have no idea what happened but it's playing even mkv's now, smooth as buttah!! How many players are on this thing and why isn't the right selection defaulted in the first place?
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2010-06-23
, 17:58
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Posts: 3 |
Thanked: 0 times |
Joined on Jun 2010
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#7
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2010-06-23
, 22:22
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Posts: 609 |
Thanked: 243 times |
Joined on Jan 2010
@ Eastern USA
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#8
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2010-06-23
, 22:33
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Posts: 45 |
Thanked: 3 times |
Joined on Dec 2009
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#9
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2010-06-24
, 12:22
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Posts: 3 |
Thanked: 0 times |
Joined on Jun 2010
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#10
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In PR1.1.1 the DivX video files played flawlessly, not a single frame drop, the panning scenes were perfect. I was using SiB for playback in PR1.1.1 because SiB played the DivX movies with packed B frames correctly and did not require unpacking of the B frames using e.g. MPEG4 Modifier.
In PR1.2 the same video file stutters in SiB a few times per second. It's quite subtle, it is only apparent when there are rapid panning scenes in the movie. I tried playing the DivX video file with packed B frames in SiB and got this issue. I also tried KMPlayer and Media Player on the file with unpacked B frames, with the similar result.
I then reflashed PR1.2 so that I had a clean device, installed just SiB and tried to play the video file in it. The playback was still jerky.
I also noticed that with PR1.2 the same slight stutter happens when playing the demonstration "9" movie file using Media Player. In the version of the movie included on the latest eMMC, it is slightly apparent in the sequence starting 2:11 and ending 2:14. In the version included in the previous version of eMMC, it can be observed in the zoom out sequence at the beginning of the movie (9 opening the window). I tested this with clean reflash of the device.
I downgraded the firmware back to PR1.1.1. I had to flash just the modem part of the firmware (cmt-mcusw) to PR1.2 in order to get the SIM card recognized (known issue). The video playback on PR1.1.1 device using SiB was now jerky (it used to be smooth using the original PR1.1.1 firmware with PR1.1.1 modem part – before messing with PR1.2). I wonder if the modem part could be the culprit. I believe it is not possible to downgrade the modem part of firmware from PR1.2 to PR1.1.1 (if you attempt to do this, the SIM card will not be recognized).
This issue does not seem to be related to the CPU utilization. On PR1.2, during the video playback the CPU was not 100% utilized. Subsequently, I also tried overclocking to 900 MHz and it did not help. (Using Titan’s enhanced kernel with stock settings did not help either.)
I am positive that I am trying to play the same files in PR1.2 as I was trying to play in PR1.1.1.
The issue does not seem to be related just to SiB or Mplayer because the video playback got less smooth in Media Player on N900 as well after upgrading to PR1.2.
The stuttering seems to be related to MPEG-4 movies in general (incl. DivX, Xvid) on my device using PR1.2.
When changing the firmware I always reflashed eMMC too. I used Maemo Flasher on Windows XP. The official PR1.2 firmware was used, not the leaked one.
Does anyone know how to fix this? Is it just my device or are other devices with PR1.2 affected too? Does anybody know how to revert to PR1.1.1 including the modem part of the firmware (cmt-mcusw)? Watching videos on N900 used to be a joy; it would be a shame giving up this feature.
Details for one of the DivX video files as reported by MPC: Video: DivX 5 640x272 25.00fps [Stream 00], Audio: MPEG Audio Layer 3 48000Hz stereo 129Kbps [Stream 01] (AVI container). 9.mp4 demo video details: Video: MPEG4 Video 800x480 23.98fps [Video], Audio: AAC 44100Hz stereo 1411Kbps [Audio].