yes, it  is.
maybe we should add every stream's status and the whole file status can't  be 
fail only by  one of streams.
but the modification will be too much and the effect  is extensive.

------------------ Original ------------------
From:  "Michael Niedermayer";<>;
Send time: Saturday, Dec 9, 2017 3:36 AM
To: "FFmpeg development discussions and patches"<>; 

Subject:  Re: [FFmpeg-devel] [PATCH] lavf/mov: atom box parsing returneofcause 
play fail

On Sat, Dec 09, 2017 at 12:06:47AM +0800, Tiejun.Peng wrote: > yes,  i have 
checked this case and i have done a lot of tests  with .mp4 file and fate  
Please correct me if iam wrong there are many different atoms/boxes and many 
functions parsing them If any of these return EOF, it has previously been 
consideered an error now it can be handled as not an error. Noone has reviewed 
most of this code to be safe after the change. It doesnt crash in fate or with 
some valid mp4 files When a parsing function hits EOF it may return EOF. This 
can occur in the middle of the function, initializing some but not all of what 
it does normally. Previously this would stop the demuxer and trigger cleanup, 
after the change the code continues and may behave badly when it uses half 
initialized structures
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