[Ffmpeg-devel] Negative stride in swscaler

[GizmoSDK]

Ok. Finally got my ffmpeg email woking again.

There is a bug in the swscaler software when converting from yuv to  
rgb and the line stride is negative.

e.g.

static inline int RENAME(yuv420_rgb16)(SwsContext *c, uint8_t* src[],  
int srcStride[], int srcSliceY,
              int srcSliceH, uint8_t* dst[], int dstStride[]){
     int y, h_size;

     if(c->srcFormat == PIX_FMT_YUV422P){
	srcStride[1] *= 2;
	srcStride[2] *= 2;
     }

     h_size= (c->dstW+7)&~7;
     if(h_size*2 > dstStride[0]) h_size-=8;

The h_size is always decremented with 8 for negative strides which is  
wrong .


/Anders Mod?n