Hello, I want to do some pixel operations on a decoded frame (AVFrame structure) in function "ff_thread_decode_frame" of the file "ffmpeg/libavcodec/pthread.c".
For example. I wrote a simple code to get y,u,v of the pixel(0,0) : int x= 0; int y= 0; unsigned char y = picture->data[0][picture->linesize[0]*y + x]; unsigned char u = picture->data[1][picture->linesize[1]*y + x]; unsigned char v = picture->data[2][picture->linesize[2]*y + x]; av_log(avctx, AV_LOG_WARNING,"\n ** ** %c %c **",y, u,v); but it doesn't work. any suggestion how to access and change a specified pixel? _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
