Async h264-files in flashplayer

[basti]

Hi!

I'm having a async-problem with my cutted h264 movies.

Here's my workflow:

1. MPEG Streamclip: For DVD ripping (Convert to MPEG with MP2 Audio) ->
2. Apple Compressor 3.0.5 : h264, v:1024k a:64k, 640*480, MOV fileformat ->
3. MPEG Streamclip: For cutting the movie into chapters.

I use MPEG Streamclip to cut the movies into chapters after they are encoded by Compressor. All cutted movies play fine in Apple Quicktime 7.6, VideoLAN and Mplayer. However when I play the cutted movies with a Flash Player (e.g. JW Player, Flow Player), they aren't lipsync anymore. The first chapter of the movie is in sync, but the the following chapters aren't....

After analyzing the Files with MediaInfo Mac, it seems that the audiotrack (50s26ms) doesn't have the same length as the videotrack (50s400ms).

I think the problem is that those Flash Players can't read or interpret the editlist atom located in the movie file to keep the movie in sync (or maybe caused by keyframes?). So I tried to scale those tracks to the same length using ffmpeg, mp4box and qtcoffee and then remux them, but it didn't work....

Is there a tool that can extract the synchronised tracks of the movie as a file without editlist (e.g by trimming or scaling the track that's too long)?

Is there a chance to resolve this async problem or do I need to reencode al those movies?


Best regards, basti

[wcaulfield]

(11-09-2009 09:28 AM)basti Wrote:  Is there a chance to resolve this async problem or do I need to reencode al those movies?

I would do everything differently, but of course, I would be on a PC. The major difference for me would be "edit early." Rip directly from vob to a frame editable source, edit, then encode. In my case, it would be vob to avi, edit, encode to mp4.

[basti]

Thanks for your response!

I'm cutting the encoded files because this saves a lot of time. Cutting the vob file and then saving each chapter takes much longer to edit.
I already have handled hundreds of movies this way, so I would be happy if this async problem can be fixed somehow....

(11-09-2009 10:44 AM)wcaulfield Wrote:  

(11-09-2009 09:28 AM)basti Wrote:  Is there a chance to resolve this async problem or do I need to reencode al those movies?

I would do everything differently, but of course, I would be on a PC. The major difference for me would be "edit early." Rip directly from vob to a frame editable source, edit, then encode. In my case, it would be vob to avi, edit, encode to mp4.

[preetam]

Basti-
We had a similar problem with H.264 videos a while ago but managed to fix it using the qt-faststart tool.

http://multimedia.cx/eggs/improving-qt-faststart/

Hope that helps.

-preetam

[teddyB]

(12-07-2009 08:14 AM)preetam Wrote:  Basti-
We had a similar problem with H.264 videos a while ago but managed to fix it using the qt-faststart tool.
-preetam

I will suggest you to try moyea flash video mx