[MEncoder-users] mencoder skipping frames.

Pete Davis pete at petedavis.net
Thu Jul 7 05:51:12 CEST 2005


Are you sure there's no mixed telecine? Try adding -vf pullup,softskip and
seeing if that fixes it.

Pete

> -----Original Message-----
> From: mencoder-users-bounces at mplayerhq.hu [mailto:mencoder-users-
> bounces at mplayerhq.hu] On Behalf Of AaronL
> Sent: Wednesday, July 06, 2005 9:31 PM
> To: mencoder-users at mplayerhq.hu
> Subject: [MEncoder-users] mencoder skipping frames.
> 
> 
> Why is mencoder skipping frames on 24000/1001 progressive content when
> I'm trying to encode with the same -ofps 24000/1001?  When I play back
> the encoded video, I can see the jump in the video at the location where
> a frame skip occured.  Attached is my commandline and the output
> messages from mencoder.  I'm using release pre7.  Can someone explain
> what's happening?
> 
> thanks.
> 
> 
> ######### Command line ##########################################
> 
> mencoder dvd://1 -ofps 24000/1001 -oac mp3lame -lameopts cbr:q=0:br=128
> -vf crop=704:464:8:6  -ovc lavc -lavcopts
> vcodec=mpeg4:vbitrate=1328:v4mv:mbd=1:autoaspect:vpass=1 -aid 128 -o
> output.avi
> 
> ######### mencoder output messages ##############################
> 
> demux_mpg: 24000/1001fps progressive NTSC content detected, switching
> framerate.
> Pos:  29.0s    742f ( 0%)  22fps Trem:  60min 330mb  A-V:0.087 [759:128]
> Skipping frame!
> Pos: 328.6s   7926f ( 4%)  34fps Trem:  73min 1169mb  A-V:0.085
> [1343:128]
> Skipping frame!
> Pos: 850.6s  20445f (12%)  33fps Trem:  75min 1340mb  A-V:0.084
> [1468:128]]
> Skipping frame!
> Pos:1174.2s  28203f (16%)  33fps Trem:  74min 1350mb  A-V:0.085
> [1412:128]
> Skipping frame!
> Pos:1679.2s  40314f (22%)  33fps Trem:  70min 1378mb  A-V:0.084
> [1414:128]]
> Skipping frame!
> Pos:2112.9s  50712f (27%)  33fps Trem:  66min 1382mb  A-V:0.085
> [1402:127]
> Skipping frame!
> Pos:2402.8s  57665f (31%)  33fps Trem:  63min 1388mb  A-V:0.084
> [1400:128]
> Skipping frame!
> Pos:2568.9s  61649f (33%)  33fps Trem:  61min 1387mb  A-V:0.086
> 
> ....(cut).....
> 
> Skipping frame!
> Pos:4550.6s 109168f (58%)  33fps Trem:  39min 1386mb  A-V:0.084
> [1358:128]
> Skipping frame!
> Pos:4763.6s 114277f (61%)  33fps Trem:  36min 1383mb  A-V:0.084
> [1358:128]
> Skipping frame!
> Pos:5056.3s 121296f (64%)  33fps Trem:  33min 1377mb  A-V:0.084
> [1344:128]
> Skipping frame!
> Pos:5490.3s 131704f (70%)  33fps Trem:  27min 1378mb  A-V:0.085
> [1354:128]]
> Skipping frame!
> ODML: Starting new RIFF chunk at 1023MB.24min 1373mb  A-V:0.075
> [1342:128]
> Pos:5894.2s 141388f (75%)  33fps Trem:  23min 1379mb  A-V:0.084
> [1339:128]
> Skipping frame!
> Pos:6288.1s 150834f (79%)  33fps Trem:  18min 1373mb  A-V:0.084
> [1325:128]]
> Skipping frame!
> Pos:6765.6s 162285f (85%)  33fps Trem:  13min 1366mb  A-V:0.084
> [1311:128]]
> Pos:7868.7s 188738f (100%)  33fps Trem:   0min 1375mb  A-V:0.014
> [1328:128]
> Flushing video frames
> 
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