Y4M_MAGIC          77 libavformat/yuv4mpeg.c                  Y4M_MAGIC,
Y4M_MAGIC         208 libavformat/yuv4mpeg.c     if (strncmp(header, Y4M_MAGIC, strlen(Y4M_MAGIC))) return -1;
Y4M_MAGIC         213 libavformat/yuv4mpeg.c     for(tokstart = &header[strlen(Y4M_MAGIC) + 1]; tokstart < header_end; tokstart++) {
Y4M_MAGIC         379 libavformat/yuv4mpeg.c     if (strncmp(pd->buf, Y4M_MAGIC, sizeof(Y4M_MAGIC)-1)==0)