Re: [Pspvc-users] [FFmpeg-user] New open source project : The Sinthgunt Converter
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From: Krzysztof B. <kb...@sy...> - 2009-06-07 10:21:31
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Hi, On Saturday 06 June 2009 21:10, Baptiste Coudurier wrote: > Hi, > > Krzysztof Błaszkowski wrote: > > Hello, > > > > if you asked me i would say that you waste your time but this is your > > time of course. > > > > according to my experience with ffplay and built-in ffmpeg support for > > rtsp/rtp i say that ffmpeg is rubbish except codecs. > > May I ask what is not working exactly ? Sure. furthermore I expected such question a few days ago. Of course i can't tell what exactly is wrong (file, line, function, structure, memory flow, locking, thread) due to many reasons: - i'm not enough familiar with ffmpeg, - i don't want to be because i can't see any need to be, - i would have to grab rfcs regarding rtsp/rtp + some additional docs on mpeg rtp encapsulation possibly (assuming they are available somewhere) to recall all details but i do not have time for this. but i can describe what i have observed already. I test ip cam like nvip-hdn ( http://www.novuscctv.com/en/products/2/1058/1060 ) which utilizes live555 for streaming server. AND with ffplay it starts nicely but after ca 30 secs ffplay outputs lots of errors on console and even worse the mpeg4 codec output is very distorted. I will send to your address some screenshots with examples (jpgs of avg size 200-300k) i noticed also huge latency time just right before 1st errors which is ca 2-3 secs. the latency time may gradually increase since start of ffplay process but i'm not sure of that. altough 2-3 seconds delay may be acceptable for some porn watching but it is definitely not acceptable for real time analysis (e.g road traffic, car @100km/h travels ca 3m in 100ms) as i have noted already there is available brilliant solution thus now i'm not interested in fixing this issue. but i may create some logs (not too many) for someone who has an idea. of course it will not be done immediately because i'm busy with other things. > If something is broken it must > be fixed. yes, this separates professionalists from hobbyists. professionalists do not cowardly pretend they are good while reality is quite different. > > Besides, many projects already leverage ffmpeg and libavformat and while > there might be some problems, it seems to working decently. great. so there is a corner case where it failed. Krzysztof Blaszkowski |