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jadonk / rowboat

Automatically exported from code.google.com/p/rowboat
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ECLAIR-DSP: dragging the playback progress bar causes a/v out of sync #54

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
Steps to reproduce:
1. Download Big Buck Bunny clip 
http://download.blender.org/peach/bigbuckbunny_movies/BigBuckBunny_640x360.m4v
2. Convert the clip using the following command:
     ffmpeg -i BigBuckBunny_640x360.m4v -vcodec mpeg4 -vb 1500000 -acodec libfaac -ac 2 -ar 16000 -ab 32000 bbb-vga.mp4
3. Put the clip to sdcard.
4. Launch android.
5. Open gallery application.
6. Play the video.
7. Drag the progress bar. 

Expected output:
Audio and video streams should be synchronized.

Real output:
Audio and video streams are out of sync: video is behind audio; If dragged the 
progress bar, a/v sync gets better, but still noticeable.

Original issue reported on code.google.com by yegor.ye...@gmail.com on 20 Oct 2010 at 2:19

GoogleCodeExporter commented 9 years ago 
[Update by Bin Liu] seems the a/v sync issue could be fixed by transcoding the 
audio with 44.1K or 48K sampling rate; but dragging the progress bar still 
causes a/v sync issue.

Original comment by yegor.ye...@gmail.com on 20 Oct 2010 at 2:22