[Libav-user] What define the quality of a decoded video

[... ...]

Hi,
Thanks but the problem is I do need to modify the pictures (printing time and other stuff).

Cordialy,Guillaume Bersac237bis rue de Pessac33000 Bordeaux06.65.30.89.43


> Date: Mon, 24 Jun 2013 14:40:36 +0300
> From: alexcohn at netvision.net.il
> To: libav-user at ffmpeg.org
> Subject: Re: [Libav-user] What define the quality of a decoded video
> 
> On Mon, Jun 24, 2013 at 11:11 AM, ... ... <bersac_1 at hotmail.fr> wrote:
> >
> > Hi,
> >
> > Thanks for all your responses, it makes things clearer. So if I understand, I can't encode video without losing quality (the same with decoding, but I don't actually have problems with decoding). But I can't skip decoding  for processing reasons. So how to define the encoding tweaks which will minimize the lost of quality ? Is there a function like AVOutputFormat* defineBestDecodeSettings(AVPacket *pkt, enum AVQuality flags); ?
> >
> > Sincerely,
> > Guillaume Bersac
> > 237bis rue de Pessac
> > 33000 Bordeaux
> > 06.65.30.89.43
> 
> Which codec are you using?
> 
> > I decode it, reencode it using the same type of encoder without modifying the decoded data and finally I save it on one file of my computer.
> 
> If you need to process decoded frames, but don't modify them for
> storage, you can still copy the original packets to the file on your
> computer.
> 
> Sincerely,
> Alex
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