Hello. Does someone know how to fix a choppy / laggy video? It's not choppy because of slow hardware, rather because of faulty encoding / editing. Sometimes it just plays like with a framerate of 3 FPS. Unfortunately I don't have a chance to get the original source video. So, maybe someone knows a trick or a tool to fix the video?
Here are some specs of the mentioned file:
Video: XVID / Avi, 672x504, 23.976023 FPS
Audio: MPGA, Stereo, 48000 Hz, 128 kb/s (only the videostream is choppy)
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Start with a full Tree view from mediainfo of the file.
Next, try loading it into avi demux and see if you get any warnings. If it asks to rebuild anything, let it.
Next, try going through the lagging parts frame at a time in virtualdub (assuming it loads). Are all the frames there, or have some frames been duplicated ?
General Complete name : C:\dub-af-edit 7.avi Format : AVI Format/Info : Audio Video Interleave File size : 700 MiB Duration : 3h 10mn Overall bit rate : 514 Kbps Writing application : VirtualDubMod 188.8.131.52 (build 2178/release) Writing library : VirtualDub build 32706/release Video ID : 0 Format : MPEG-4 Visual Format profile : Advanced Simple@L5 Format settings, BVOP : Yes Format settings, QPel : No Format settings, GMC : No warppoints Format settings, Matrix : Default (H.263) Muxing mode : Packed bitstream Codec ID : XVID Codec ID/Hint : XviD Duration : 3h 10mn Bit rate : 376 Kbps Width : 672 pixels Height : 504 pixels Display aspect ratio : 4:3 Frame rate : 23.976 fps Resolution : 8 bits Colorimetry : 4:2:0 Scan type : Progressive Bits/(Pixel*Frame) : 0.046 Stream size : 513 MiB (73%) Writing library : XviD 1.2.1 (UTC 2008-12-04) Audio ID : 1 Format : MPEG Audio Format version : Version 1 Format profile : Layer 3 Mode : Joint stereo Format_Settings_ModeExtension : MS Stereo Codec ID : 55 Codec ID/Hint : MP3 Duration : 3h 10mn Bit rate mode : Constant Bit rate : 128 Kbps Channel(s) : 2 channels Sampling rate : 48.0 KHz Stream size : 174 MiB (25%) Alignment : Aligned on interleaves Interleave, duration : 42 ms (1.00 video frame) Interleave, preload duration : 504 ms
3. - "Are all the frames there?" How can i check this?
- "or have some frames been duplicated?" In the lagging parts of the video, some frames look very similar, but they don't seem to be exact duplicates.
I'm afraid that the video seems to be an assembly of many different clips with differents formats cobbled together. Probably it's not worth the efforts. I just thought there is maybe a program which can "repair" it automatically.
Thanks for the help soopa, but unfortunately this tools didn't solve the problem.