More frame skipping in attempted RMVB conversion

[Dorfnarr]

I've played with various frame rates, but haven't been able to get ffmpegX to actually start encoding my RMVB file -- I'm obviously doing something wrong but even with the help of the numerous posts here, have not been able to figure it out.

According to ffmpegX, format of the video in my source file is: RV40, 640x352, 23.000 fps. Current target video format window reads: mencoder mpeg4, 640x352, 1163 kbps, 23.000 fps, no crop.

I get endless frame skipping (with occasional notes on individual frames).

Very grateful for your help (and patience!).

[Dorfnarr]

Addendum to previous:

Looking at Progress log, found the following, which I should've included in my original post (sorry!):

Opening video filter: [expand osd=1]
Error: dlopen(/Library/Application Support/ffmpegX/reallib/drvc.so, 1): no suitable image found. Did find:
/Library/Application Support/ffmpegX/reallib/drvc.so: unknown file type, first eight bytes: 0x7F 0x45 0x4C 0x46 0x01 0x01 0x01 0x00
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
Opening video filter: [scale w=640 h=352]
================================================== ========================
Opening video decoder: [realvid] RealVideo decoder
Read the RealVideo section of the DOCS!
VDecoder init failed
Opening video decoder: [realvid] RealVideo decoder
Read the RealVideo section of the DOCS!
VDecoder init failed
Opening video decoder: [realvid] RealVideo decoder
Read the RealVideo section of the DOCS!
Error: dlopen(/Library/Application Support/ffmpegX/reallib/drv4.so.6.0, 1): image not found
it failed
Opening video decoder: [realvid] RealVideo decoder
Selected video codec: [rv40mac] vfm: realvid (Mac OS X RealPlayer 9 RV40 decoder)
================================================== ========================
Forcing output fourcc to 58564944 [DIVX]
MP3 audio selected
VDec: vo config request - 640 x 352 (preferred colorspace: Planar I420)
VDec: using Planar I420 as output csp (no 0)
Movie-Aspect is 1.82:1 - prescaling to correct movie aspect.
SwScaler: using unscaled Planar YV12 -> Planar YV12 special converter
videocodec: libavcodec (640x352 fourcc=58564944 [DIVX])
Writing header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Writing header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Skipping frame!
Skipping frame!
Skipping frame!
etc, etc

Thanks.

[jpschuck]

Your source file is probably 24 fps, incorrectly recognized as 23 fps by ffmpegX. As your output is set to 23 fps, mencoder skips every 24th frame.

[Dorfnarr]

Thanks for your response.

I have changed the output to 24/23.976 without success.

Further options?

Amities.

[mactheknife]

Frame skipping happens when you convert RMVB to any other format using ffMpegX. Its absolutely normal. I get the same thing when converting the file too. Just let it finish running. It might take a while though depending on the speed of your computer and source video.

To ascertain the correct framerate, open the file in real player, and press command-i. Under streams, the encoded framerate should be displayed. Use the same one or the closest default in ffMpegX. For instance, if the RMVB is encoded at 24fps, use NTSC film. If the framerate is entered wrongly in ffMpegX, audio might end up being out of sync.

[Dorfnarr]

Thanks so much for this advice.

I checked in real player, and the original frame rate was indeed 23fps. I then persisted in ffmpegx and let the process (and frame skipping) run, and after 8 minutes, it finished. The audio is slightly out of sync, but the video is certainly watchable.

I greatly appreciate your help.