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[Mjpatey <mjpatey@xxxxxxxxx>]

OK, reporting back... I played the 3gp files in question using ffplay,
and they played just fine.  The Xvid files were fine, too.  Further down
in this post I have info about the "melt" command, but first here's the
terminal output from ffplay:

ffplay video-2010-01-06-10-37-17.3gp
FFplay version git-ab0189b, Copyright (c) 2003-2009 Fabrice Bellard, et al.
  built on Oct 24 2009 21:36:46 with gcc 4.4.1
  configuration: --enable-gpl --enable-nonfree --enable-shared --enable-pthreads --enable-libx264 --enable-libfaac --enable-libtheora --extra-cflags=-fPIC --extra-cflags=-DPIC
  libavutil     50. 3. 0 / 50. 3. 0
  libavcodec    52.37. 1 / 52.37. 1
  libavformat   52.39. 2 / 52.39. 2
  libavdevice   52. 2. 0 / 52. 2. 0
  libswscale     0. 7. 1 /  0. 7. 1
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video-2010-01-06-10-37-17.3gp':
  Duration: 00:00:40.76, start: 0.000000, bitrate: 3085 kb/s
    Stream #0.0(eng): Video: h264, yuv420p, 720x480, 2987 kb/s, 25 tbr, 1k tbn, 50 tbc
    Stream #0.1(eng): Audio: aac, 16000 Hz, mono, s16, 95 kb/s
  Metadata
    major_brand     : 3gp4
    minor_version   : 768
    compatible_brands: 3gp4mp413gp6
  40.70 A-V: -0.264 aq=    0KB vq=    0KB sq=    0B  

...when I played them with the "melt" command, however, the same clips
played decently, but the video is enlarged slightly and audio is jittery
(little snaps and pops, sounding almost like word clock errors).  Here's
some output of the "melt" command (melt 0.4.7):

melt video-2010-01-06-10-37-17.3gp
+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
|1=-10| |2= -5| |3= -2| |4= -1| |5=  0| |6=  1| |7=  2| |8=  5| |9= 10|
+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
+---------------------------------------------------------------------+
|               H = back 1 minute,  L = forward 1 minute              |
|                 h = previous frame,  l = next frame                 |
|           g = start of clip, j = next clip, k = previous clip       |
|                0 = restart, q = quit, space = play                  |
+---------------------------------------------------------------------+
Current Position:        725

I hope this helps!  If you have any more suggestions, I'll give them a
shot.  But I'll hold off on uninstalling and reinstalling for now,
unless that's definitely the next thing to try.

-- 
3gp and XVID files not working correctly
https://bugs.launchpad.net/bugs/505403
You received this bug notification because you are a member of OpenShot
Developers, which is subscribed to OpenShot Video Editor.

Status in OpenShot Video Editor: New

Bug description:
I just got a Motorola Droid, and the video it takes is in 3gp format (H.264 with MPEG-4 AAC audio).  When I import these files into OpenShot, their video plays in the Preview window at a faster rate than their audio, which plays at normal speed.  Because of this, each clip has an amount of white space at the end proportionate to its overall length.  This makes it impossible to edit transitions between clips, because when playing across the edit, I don't see where i am in the first clip-- all I see is the white from the end of the first clip transitioning into the next clip.

Unfortunately, when exporting, this behavior remains.

Also, the files I import from my Flip mini-camcorder behave badly, though in a different way.  They're XVID MPEG-4 AVI files with ADPCM audio.  The symptom I'm getting is terrible stuttering of audio; video looks OK, but the audio is acting as if it's had tiny chunks of silence pasted into it at 1-frame intervals.  Voices sound robotic, etc.

I'm running OpenShot version 1.0.0 installed from .deb for Ubuntu 9.10 64-bit.  According to Gdebi, all dependencies installed properly.