MPEG4 question.

[paraman]

I have a TV tuner card in my pc and I have captured some videos with it in MPEG2 format, size : 720x576. The captured videos play smoothly on my pc.

Recently I tried to convert them to MPEG4 format using a program. The resultant video has good audio and video quality. Only problem is that some frames seem to have been skipped. The clip will play smoothly and suddenly skip a few frames and go forward. Even when this is happening the audio is playing smoothly. After the video has forwarded a little, the audio and video is perfectly synchronized though. Why is this happening?

[paraman]

Does nobody have a suggestion to offer?

[Baldrick]

what tool are you converting with? and what kind of mpeg4? wmv? divx? xvid?

you can try some other tools like autogk, dvx, dr.divx, vidomi, virtualdub-mpeg2 . and be sure to convert to same framerate as the source.

[paraman]

I am using CyberLink PowerEncoder MPEG4 AVC Edition to encode the tv caps. into MPEG4 format. The program lists it as H.264 format. I don't have deep knowledge of this subject. The converted file is saved as *.mpg file.

I have tried Dr.DivX but the resultant video has too much quality loss. This H.264 format is the first one that I found which reduces the file size without much apparent loss of video quality.

[Baldrick]

Okey...the new h264/avc encoders aren't perfect yet. You can also try Mainconcept H.264 Encoder and Moonlight OneClick Compressor

[celtic_druid]

AVC requires a lot more CPU power to decode.

Cyberlink uses Moonlight's compressor and MainConcept is supposed to be total crap.

I would suggest either Nero Digital or x264. That way you also get to use mp4 as a container.