[FFmpeg-user] OS X related issue rather than ffmpeg related issue

Henk D. Schoneveld belcampo at zonnet.nl
Thu Sep 10 12:15:10 CEST 2015


On 10 Sep 2015, at 12:06, Henk D. Schoneveld <belcampo at zonnet.nl> wrote:

> 
> On 10 Sep 2015, at 11:42, 桃源老師 <xanadu6291 at gmail.com> wrote:
> 
>> Hello video experts!
>> 
>> I know that my issue is OS X related issue rather than ffmpeg related issue, but I'm appreciate someone's help who using OS X…
> On OSX I tried QTPlayer VLC and MPEG Streamclip, all 3 look different. My conclusion it’s not OSX, but media player defaults which cause this. I uploaded 3 screenshots from identical position in sample.
> http://we.tl/Hi3Tu7aUEB  
By inspecting some files which I encoded myself and your sample, I do see 1 difference the term Component, which I see in sample.mp4 but not in other files. Did this with mediainfo.
Frame rate mode                          : Constant
Frame rate                               : 29.970 fps
Standard                                 : Component
Color space                              : YUV

I don’t know what it means though.
>> 
>> I downloaded some videos from net.  Then I found that some of them have strange orange color noise (?).
>> It only occurs with QuickTime based application.  Never occurs with ffplay, Windows media player, MPC-HC or VLC.
>> 
>> Here's short sample of my issue:
>> http://www.mediafire.com/download/pkvb8bbd05hirzb/sample.mp4.zip
>> 
>> I'm suspecting that it is related with video's color space.  those downloaded video uses bt709.
>> 
>> I'd like to know why this strange noise occurs with QuickTime based application...
>> 
>> Please help me!
>> 
>> 
>> // Miya aka. TougenRoushi
>> 
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