Hi,

   I am using ffmpeg libararies to create an AVI file as mentioned in the post 
(Make AVI file from H264 compressed data), this guy had the same problem as i 
currently have (i-e getting error value -22.Please anyone can explain me what's 
the meaning of this error code "-22" that i get from 
"av_interleaved_write_frame" ?
he suggested that "By setting pts and dts with AV_NOPTS_VALUE I've solved the 
problem." please share any example how to set pts value with AV_NOPTS_VALUE ? 
and what should be the value of pts any rought estimate ?
I found that this error "-22" is coming from "error.h" from the function 
#define FFERRTAG(a, b, c, d) (-(int)MKTAG(a, b, c, d)) but there are no details 
what MKTAG function does. I shall be very thankful if some one can also explain 
what MKTAG does ? and what error code "-22"  means ?
Thanks in advance,Qureshi

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