[FFmpeg-user] H.264 single access unit decoding

Robert Sitan lmodern at hotmail.com
Wed Mar 30 19:57:50 CEST 2011

> Date: Wed, 30 Mar 2011 14:31:22 +0200
> From: alexandre.ferrieux at orange-ftgroup.com
> To: lmodern at hotmail.com
> CC: ffmpeg-user at ffmpeg.org
> Subject: Re: [FFmpeg-user] H.264 single access unit decoding
> Ah ! Your yuv file is only a single field of an interlaced image. For proof (in addition to looking at it), just note 
> its size: it is 3110400 bytes, while 1920*1080*3 = 6220800.

You're right about the interlacing issue. However, I still have one question: the size of a YUV 4:2:0 image should be 1920*1080*1.5 = 3110400 bytes, no?

> So, I'd say ffmpeg is right to refrain from outputting a full frame from a single field, and JM is more "optimistic".

Thanks for pointing out the difference.



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