2009/8/27 Alessandro Ferrari <[email protected]> > Hi, > i want to resize an YUV420P image by using the function sws_scale( > SwsContext * c, uint8_t * src[], int srcStride[], int srcSliceY, int > srcSliceH, uint8_t * dst[], int dstStride[]) in swscal.h. I want to resize > only its resolution and i don't want to change the picture format. At this > function I have to specify the param int dstStride[] but I don't know what > this param specify and what I have to pass to the function. The source > picture is a 720x576 resolution, and is linesizes contains: > linesize[0]=752 linesize[1]=376 linesize[2]=376, what specify this > attributes and what i have to adapt them at the new resolution? > > Thanjs in advance, best regardsL
I solved. Linesizes indicate the width of the pixel arrays of YUV420P. For the vector Y (linesize[0]) is equal at the width, for U,V vector (linesize[1] and linesize[2]) is width/2. _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
