5/17/2023 0 Comments Mplayer thumbnailer![]() Now, when you re-visit Konqueror's and Dolphin's Settings you'll see an entry under the Previews tab called Video Files (MplayerThumbs). All you need to do is install mplayerthumbs from your distro's repositories via the package manager (or apt-get install mplayerthumb or yum install mplayerthumbs-as root, of course). The first thing I need to do is to get video thumbnails back in Konqueror (like Nautilus). I want some of that functionality back for those times when I just want to view it quick and fast without all the bells and whistles-and the good news is that it's not difficult to do. Back in the day, Konqueror was able to handle lots of media without having to open a separate application. ![]() Many great features have been stripped out but it's still a a great file manager (and a decent browser) even if Dolphin has been promoted as the default file manager of the KDE desktop. With any luck, someone will find this page and save themselves a day of frustration.Spare a thought for old time stalwarts like Konqueror. rm file isn’t local, both of those commands work by feeding them a stream like rtsp://server/realmediafile.rm! Mplayer -identify -frames 0 -vc null -vo null -ao null realmediafile.rmĮven cooler, in the cases where the. You can pull the info about the stream, including framerate and original dimensions, using mplayer: I only noticed this happening with RV40 on multirate files, RV30 seemed solid. Without that, the real demuxer will sometimes guess wrong and get out of sync, resulting in an unpleasant hung process as it comes across the next data chunk. Some of that is over my head and I just copied it (last_pred=3?) but the real key for this process seems to be knowing and accurately setting the input stream’s framerate using -fps xx.xx. Mencoder realmediafile.rm -ni -o flvoutput.flv -oac mp3lame -lameopts abr:br=56 -srate 22050 -ovc lavc -lavcopts vcodec=flv:vbitrate=300:mbd=2:mv0:trell:v4mv:cbp:last_pred=3 -fps 30.000 -ofps 24 -mc 1 -of lavf -lavfopts i_certify_that_my_video_stream_does_not_use_b_frames rm files, so this is all done in mencoder) After many attempts and failed encodings – including one hair-pulling episode where it turned out the audio was actually out of sync in the original file and not in the transformed version – I believe I have a “good enough for now” command line formula for converting Real Media to flv. An unfortunate number of our Channel videos are in this format, so it’s something we have to solve. Things get much trickier when you introduce Real Media into the mix. The developers of these tools have done a truly amazing job. The solution is ffmpeg and mplayer / mencoder, and the amazing thing is it’s almost as easy as just throwing a file at it and telling it what format you want. ![]() We also need to generate thumbnails for all the video, and properly detect the edge cases where we have an audio-only quicktime file that wants to be a video but clearly should actually be an mp3 audio file. The source media is in everything from Real Audio and Real Video to different flavors of quicktime (mp4, etc), old mp3 codecs, some avi, and even wav files. ![]() I’m working on a phase of the new ArtsConnectEd site where we’re trying to automate the importing of all of our various media types into two standard, embeddable formats: mp3 and flv. Time to return the favor to the blogosphere and the mplayer-users mailing list, where most of this information was painstakingly discovered. ![]()
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