August 2007 - ffmpeg-user - lists.ffmpeg.org

After WMV bitrate conversion, converted file do not play in Windows Medial Player
by pavn＠centrum.cz 01 Aug '07

01 Aug '07

Hi all, I would like to kindly ask, I tried to WMV video bitrate conversion using "ffmpeg.exe -i jayz105.wmv -b 515k j.wmv". But after conversion converted WMV file is not possible to play using Windows Media Player. Windows Media Player feedback: "Windows Media Player cannot play the file because it is either damaged or corrupt." But it is possible to play converted file in VLC. Is it possible to make WMV bitrate conversion to be able to play in WMP? Thanks for answer, Pavel

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After MOV bitrate conversion - sprite is missing
by pavn＠centrum.cz 01 Aug '07

01 Aug '07

Hi all, I would like to kindly ask, I tried to MOV video bitrate conversion using "ffmpeg.exe -i Leaked2_1_mp4_sprited.mov -b 615k l.mov". But after conversion sprite which launched URL in browser is missing. Is it possible to make MOV bitrate conversion without ffmpeg to remove sprite? Thanks for answer, Pavel

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real dvd support in ffmpeg?
by tuitfun＠yahoo.co.th 01 Aug '07

01 Aug '07

hello, from what i've read in the archive, when processing dvd's most people just use .vob files in VIDEO_TS directory. but each .vob file is not a complete movie so it's been suggested that the .vob files should be cat'ed together first. is this the proper way to handle dvd's in ffmpeg? there're comments that some infos, eg. language name & index, are not stored in the .vob files. so, is there a better way to transcode/rip dvd's other than processing the .vob files directly. in mplayer, there's a dvd:// option specifically. another related question is, can ffmpeg work with dvd image stored in a file, eg. .iso, .ngr, .mds? i've read from an old post that for this to work, a new URLprotocol might need to be implemented. has this been done already? i think mplayer is using libdvdread for accessing dvd's. would it also work with ffmpeg? thanks a lot for your help, :) tuit ____________________________________________________________________________________ Choose the right car based on your needs. Check out Yahoo! Autos new Car Finder tool. http://autos.yahoo.com/carfinder/

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by ckp21082＠gmail.com 01 Aug '07

01 Aug '07

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how do I get better FLV quality?
by jet＠synth-tec.com 01 Aug '07

01 Aug '07

Hello. I am converting video files to FLV for view on the web, and I cannot get them to look as good as they do on youtube, no matter how high i make the bitrate. Here is an example ffmpeg command line I am using (with 1,000k bitrate). Typically I use about 300k bitrate, but in this example I have a very high bitrate to show you that the quality will not increase even with this high bitrate: /a/ffmpeg/bin/ffmpeg -y -i /tmp/VF.wmv -ar 22050 -ab 32k -b 1000k -bt 200k -minrate 800k -maxrate 1200k -bufsize 300000k -f flv -r 15 -s 320x240 -sameq output.flv This command line produces the following file which can be found here: http://vampirefreaks.com/playvideo/?v=13823 the youtube encoded version of the same input file is at http://www.youtube.com/watch?v=YYTEpZfPQyc which as you can see is significantly better quality original input file (2 mb) can be downloaded here: http://video1.vampirefreaks.com/error/VF.wmv i've tried all kinds of different options, tried CBR, VBR, tried messing with qmin and qmax, qblur, etc. but no matter what I can't get the quality better than what you see in that link. any help would be most appreciated. -Jethro

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