Stas,
No idea. It's the only sample I've been able to find so far.
I was quite glad to find it as it looks as though it's most of the work
that I need to do already solved for me. To paraphrase what someone else
said on forum recently "FFMPEG is really great. Just about everything
you need is in there, but it's a real bugger trying to find it."
I suppose it comes down to rewrite the whole lot yourself, pay someone
for limited functionality and pass the costs (as well as all of the
addition support files) on to your customer or take the free option and
experiment ('cause there'll be bugger all useful documentation).
Reply off forum if you want ([email protected])
Regards,
Clive
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Stas Oskin
Sent: 03 March 2009 00:16
To: Libav* user questions and discussions
Subject: Re: [libav-user] FFMPEG extraction to JPEG
>
> Have a look at
> http://readlist.com/lists/mplayerhq.hu/ffmpeg-user/1/8128.html
>
> Admittedly this is using a live video feed rather than an open file,
but
> it shouldn't be too hard to convert - in fact I'll be doing just that
> fairly soon.
>
Thanks! This provides just what I need.
On unrelated note - any idea about the following section:
/* Initialize all VBR settings */
pOCodecCtx->qmin = pOCodecCtx->qmax = bQuality;
pOCodecCtx->mb_lmin = pOCodecCtx->lmin = pOCodecCtx->qmin *
FF_QP2LAMBDA;
pOCodecCtx->mb_lmax = pOCodecCtx->lmax = pOCodecCtx->qmax *
FF_QP2LAMBDA;
pOCodecCtx->flags |= CODEC_FLAG_QSCALE;
pOCodecCtx->global_quality = pOCodecCtx->qmin * FF_QP2LAMBDA;
It seems as he turns on fixed quality of 3 for JPEG output, do you know
why?
Regards.
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