[FFmpeg-user] How do I make ffplay play without high latency?

Jesse Gordon tojesseg at gmail.com
Sun Nov 25 19:13:02 CET 2012

On 11/25/2012 12:25 AM, Carl Eugen Hoyos wrote:
> Jesse Gordon <tojesseg <at> gmail.com> writes:
>> With -probesize 2048, it buffers then pops up the
>> play window in about 1-2 seconds after starting ffplay.
>> With a probesize of 2,048,000 through 20,480,000 it
>> takes about 3-4 seconds to pop up the play window.
> (This sounds as if it does make a difference.)

Absolutely! I do appologize for not being more verbose when I said it 
made no difference. I had not intended to communicate that the 
-probesize  option made no difference on probesize, only that it made no 
difference on my particular issue of latency, because I'd assumed that 
was the reason it was suggested.  But probesize does definitely 
influence the maximum probesize used when probing the http stream!

>> But regardless of whether I use 2K, ~20K, 2M or 20M,
>> the play latency appears to the human eye to be
>> about the same.
> Thank you for testing, sorry that it didn't help.
> Carl Eugen

It was worth a try!

Do you know where in the code I should look for adjusting the play frame 
timing, or do I need to sign up for the dev mailing list for that sort 
of question?

Thanks again very much for all of your effort and help!


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