[FFmpeg-devel] [PATCH] ipod320: restrict to refs=1 as in ipod640 (issue2399)

Niobos niobos
Fri Dec 3 16:33:15 CET 2010


On 2010-12-02 22:59, Michael Niedermayer wrote:
> On Thu, Dec 02, 2010 at 10:47:41PM +0100, Christian Ebert wrote:
>> ---
>>  ffpresets/libx264-ipod320.ffpreset |    1 +
>>  1 files changed, 1 insertions(+), 0 deletions(-)
> 
> i would suspect the limit to be on memory and not on refs
I suspected that as well, but was proven wrong

I did some crowd-sourced testing, report can be found here:
http://blog.dest-unreach.be/2009/09/08/h264-limits-for-iphone

In summary: it seems that on older phones, there is a hard limit on 6
reference frames.

Niobos




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